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define(factory) :\n (factory());\n}(this, (function () { 'use strict';\n\n /**\n * Applies the :focus-visible polyfill at the given scope.\n * A scope in this case is either the top-level Document or a Shadow Root.\n *\n * @param {(Document|ShadowRoot)} scope\n * @see https://github.com/WICG/focus-visible\n */\n function applyFocusVisiblePolyfill(scope) {\n var hadKeyboardEvent = true;\n var hadFocusVisibleRecently = false;\n var hadFocusVisibleRecentlyTimeout = null;\n\n var inputTypesAllowlist = {\n text: true,\n search: true,\n url: true,\n tel: true,\n email: true,\n password: true,\n number: true,\n date: true,\n month: true,\n week: true,\n time: true,\n datetime: true,\n 'datetime-local': true\n };\n\n /**\n * Helper function for legacy browsers and iframes which sometimes focus\n * elements like document, body, and non-interactive SVG.\n * @param {Element} el\n */\n function isValidFocusTarget(el) {\n if (\n el &&\n el !== document &&\n el.nodeName !== 'HTML' &&\n el.nodeName !== 'BODY' &&\n 'classList' in el &&\n 'contains' in el.classList\n ) {\n return true;\n }\n return false;\n }\n\n /**\n * Computes whether the given element should automatically trigger the\n * `focus-visible` class being added, i.e. whether it should always match\n * `:focus-visible` when focused.\n * @param {Element} el\n * @return {boolean}\n */\n function focusTriggersKeyboardModality(el) {\n var type = el.type;\n var tagName = el.tagName;\n\n if (tagName === 'INPUT' && inputTypesAllowlist[type] && !el.readOnly) {\n return true;\n }\n\n if (tagName === 'TEXTAREA' && !el.readOnly) {\n return true;\n }\n\n if (el.isContentEditable) {\n return true;\n }\n\n return false;\n }\n\n /**\n * Add the `focus-visible` class to the given element if it was not added by\n * the author.\n * @param {Element} el\n */\n function addFocusVisibleClass(el) {\n if (el.classList.contains('focus-visible')) {\n return;\n }\n el.classList.add('focus-visible');\n el.setAttribute('data-focus-visible-added', '');\n }\n\n /**\n * Remove the `focus-visible` class from the given element if it was not\n * originally added by the author.\n * @param {Element} el\n */\n function removeFocusVisibleClass(el) {\n if (!el.hasAttribute('data-focus-visible-added')) {\n return;\n }\n el.classList.remove('focus-visible');\n el.removeAttribute('data-focus-visible-added');\n }\n\n /**\n * If the most recent user interaction was via the keyboard;\n * and the key press did not include a meta, alt/option, or control key;\n * then the modality is keyboard. Otherwise, the modality is not keyboard.\n * Apply `focus-visible` to any current active element and keep track\n * of our keyboard modality state with `hadKeyboardEvent`.\n * @param {KeyboardEvent} e\n */\n function onKeyDown(e) {\n if (e.metaKey || e.altKey || e.ctrlKey) {\n return;\n }\n\n if (isValidFocusTarget(scope.activeElement)) {\n addFocusVisibleClass(scope.activeElement);\n }\n\n hadKeyboardEvent = true;\n }\n\n /**\n * If at any point a user clicks with a pointing device, ensure that we change\n * the modality away from keyboard.\n * This avoids the situation where a user presses a key on an already focused\n * element, and then clicks on a different element, focusing it with a\n * pointing device, while we still think we're in keyboard modality.\n * @param {Event} e\n */\n function onPointerDown(e) {\n hadKeyboardEvent = false;\n }\n\n /**\n * On `focus`, add the `focus-visible` class to the target if:\n * - the target received focus as a result of keyboard navigation, or\n * - the event target is an element that will likely require interaction\n * via the keyboard (e.g. a text box)\n * @param {Event} e\n */\n function onFocus(e) {\n // Prevent IE from focusing the document or HTML element.\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (hadKeyboardEvent || focusTriggersKeyboardModality(e.target)) {\n addFocusVisibleClass(e.target);\n }\n }\n\n /**\n * On `blur`, remove the `focus-visible` class from the target.\n * @param {Event} e\n */\n function onBlur(e) {\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (\n e.target.classList.contains('focus-visible') ||\n e.target.hasAttribute('data-focus-visible-added')\n ) {\n // To detect a tab/window switch, we look for a blur event followed\n // rapidly by a visibility change.\n // If we don't see a visibility change within 100ms, it's probably a\n // regular focus change.\n hadFocusVisibleRecently = true;\n window.clearTimeout(hadFocusVisibleRecentlyTimeout);\n hadFocusVisibleRecentlyTimeout = window.setTimeout(function() {\n hadFocusVisibleRecently = false;\n }, 100);\n removeFocusVisibleClass(e.target);\n }\n }\n\n /**\n * If the user changes tabs, keep track of whether or not the previously\n * focused element had .focus-visible.\n * @param {Event} e\n */\n function onVisibilityChange(e) {\n if (document.visibilityState === 'hidden') {\n // If the tab becomes active again, the browser will handle calling focus\n // on the element (Safari actually calls it twice).\n // If this tab change caused a blur on an element with focus-visible,\n // re-apply the class when the user switches back to the tab.\n if (hadFocusVisibleRecently) {\n hadKeyboardEvent = true;\n }\n addInitialPointerMoveListeners();\n }\n }\n\n /**\n * Add a group of listeners to detect usage of any pointing devices.\n * These listeners will be added when the polyfill first loads, and anytime\n * the window is blurred, so that they are active when the window regains\n * focus.\n */\n function addInitialPointerMoveListeners() {\n document.addEventListener('mousemove', onInitialPointerMove);\n document.addEventListener('mousedown', onInitialPointerMove);\n document.addEventListener('mouseup', onInitialPointerMove);\n document.addEventListener('pointermove', onInitialPointerMove);\n document.addEventListener('pointerdown', onInitialPointerMove);\n document.addEventListener('pointerup', onInitialPointerMove);\n document.addEventListener('touchmove', onInitialPointerMove);\n document.addEventListener('touchstart', onInitialPointerMove);\n document.addEventListener('touchend', onInitialPointerMove);\n }\n\n function removeInitialPointerMoveListeners() {\n document.removeEventListener('mousemove', onInitialPointerMove);\n document.removeEventListener('mousedown', onInitialPointerMove);\n document.removeEventListener('mouseup', onInitialPointerMove);\n document.removeEventListener('pointermove', onInitialPointerMove);\n document.removeEventListener('pointerdown', onInitialPointerMove);\n document.removeEventListener('pointerup', onInitialPointerMove);\n document.removeEventListener('touchmove', onInitialPointerMove);\n document.removeEventListener('touchstart', onInitialPointerMove);\n document.removeEventListener('touchend', onInitialPointerMove);\n }\n\n /**\n * When the polfyill first loads, assume the user is in keyboard modality.\n * If any event is received from a pointing device (e.g. mouse, pointer,\n * touch), turn off keyboard modality.\n * This accounts for situations where focus enters the page from the URL bar.\n * @param {Event} e\n */\n function onInitialPointerMove(e) {\n // Work around a Safari quirk that fires a mousemove on whenever the\n // window blurs, even if you're tabbing out of the page. \u00AF\\_(\u30C4)_/\u00AF\n if (e.target.nodeName && e.target.nodeName.toLowerCase() === 'html') {\n return;\n }\n\n hadKeyboardEvent = false;\n removeInitialPointerMoveListeners();\n }\n\n // For some kinds of state, we are interested in changes at the global scope\n // only. For example, global pointer input, global key presses and global\n // visibility change should affect the state at every scope:\n document.addEventListener('keydown', onKeyDown, true);\n document.addEventListener('mousedown', onPointerDown, true);\n document.addEventListener('pointerdown', onPointerDown, true);\n document.addEventListener('touchstart', onPointerDown, true);\n document.addEventListener('visibilitychange', onVisibilityChange, true);\n\n addInitialPointerMoveListeners();\n\n // For focus and blur, we specifically care about state changes in the local\n // scope. This is because focus / blur events that originate from within a\n // shadow root are not re-dispatched from the host element if it was already\n // the active element in its own scope:\n scope.addEventListener('focus', onFocus, true);\n scope.addEventListener('blur', onBlur, true);\n\n // We detect that a node is a ShadowRoot by ensuring that it is a\n // DocumentFragment and also has a host property. This check covers native\n // implementation and polyfill implementation transparently. If we only cared\n // about the native implementation, we could just check if the scope was\n // an instance of a ShadowRoot.\n if (scope.nodeType === Node.DOCUMENT_FRAGMENT_NODE && scope.host) {\n // Since a ShadowRoot is a special kind of DocumentFragment, it does not\n // have a root element to add a class to. So, we add this attribute to the\n // host element instead:\n scope.host.setAttribute('data-js-focus-visible', '');\n } else if (scope.nodeType === Node.DOCUMENT_NODE) {\n document.documentElement.classList.add('js-focus-visible');\n document.documentElement.setAttribute('data-js-focus-visible', '');\n }\n }\n\n // It is important to wrap all references to global window and document in\n // these checks to support server-side rendering use cases\n // @see https://github.com/WICG/focus-visible/issues/199\n if (typeof window !== 'undefined' && typeof document !== 'undefined') {\n // Make the polyfill helper globally available. This can be used as a signal\n // to interested libraries that wish to coordinate with the polyfill for e.g.,\n // applying the polyfill to a shadow root:\n window.applyFocusVisiblePolyfill = applyFocusVisiblePolyfill;\n\n // Notify interested libraries of the polyfill's presence, in case the\n // polyfill was loaded lazily:\n var event;\n\n try {\n event = new CustomEvent('focus-visible-polyfill-ready');\n } catch (error) {\n // IE11 does not support using CustomEvent as a constructor directly:\n event = document.createEvent('CustomEvent');\n event.initCustomEvent('focus-visible-polyfill-ready', false, false, {});\n }\n\n window.dispatchEvent(event);\n }\n\n if (typeof document !== 'undefined') {\n // Apply the polyfill to the global document, so that no JavaScript\n // coordination is required to use the polyfill in the top-level document:\n applyFocusVisiblePolyfill(document);\n }\n\n})));\n", "(function(global) {\r\n /**\r\n * Polyfill URLSearchParams\r\n *\r\n * Inspired from : https://github.com/WebReflection/url-search-params/blob/master/src/url-search-params.js\r\n */\r\n\r\n var checkIfIteratorIsSupported = function() {\r\n try {\r\n return !!Symbol.iterator;\r\n } catch (error) {\r\n return false;\r\n }\r\n };\r\n\r\n\r\n var iteratorSupported = checkIfIteratorIsSupported();\r\n\r\n var createIterator = function(items) {\r\n var iterator = {\r\n next: function() {\r\n var value = items.shift();\r\n return { done: value === void 0, value: value };\r\n }\r\n };\r\n\r\n if (iteratorSupported) {\r\n iterator[Symbol.iterator] = function() {\r\n return iterator;\r\n };\r\n }\r\n\r\n return iterator;\r\n };\r\n\r\n /**\r\n * Search param name and values should be encoded according to https://url.spec.whatwg.org/#urlencoded-serializing\r\n * encodeURIComponent() produces the same result except encoding spaces as `%20` instead of `+`.\r\n */\r\n var serializeParam = function(value) {\r\n return encodeURIComponent(value).replace(/%20/g, '+');\r\n };\r\n\r\n var deserializeParam = function(value) {\r\n return decodeURIComponent(String(value).replace(/\\+/g, ' '));\r\n };\r\n\r\n var polyfillURLSearchParams = function() {\r\n\r\n var URLSearchParams = function(searchString) {\r\n Object.defineProperty(this, '_entries', { writable: true, value: {} });\r\n var typeofSearchString = typeof searchString;\r\n\r\n if (typeofSearchString === 'undefined') {\r\n // do nothing\r\n } else if (typeofSearchString === 'string') {\r\n if (searchString !== '') {\r\n this._fromString(searchString);\r\n }\r\n } else if (searchString instanceof URLSearchParams) {\r\n var _this = this;\r\n searchString.forEach(function(value, name) {\r\n _this.append(name, value);\r\n });\r\n } else if ((searchString !== null) && (typeofSearchString === 'object')) {\r\n if (Object.prototype.toString.call(searchString) === '[object Array]') {\r\n for (var i = 0; i < searchString.length; i++) {\r\n var entry = searchString[i];\r\n if ((Object.prototype.toString.call(entry) === '[object Array]') || (entry.length !== 2)) {\r\n this.append(entry[0], entry[1]);\r\n } else {\r\n throw new TypeError('Expected [string, any] as entry at index ' + i + ' of URLSearchParams\\'s input');\r\n }\r\n }\r\n } else {\r\n for (var key in searchString) {\r\n if (searchString.hasOwnProperty(key)) {\r\n this.append(key, searchString[key]);\r\n }\r\n }\r\n }\r\n } else {\r\n throw new TypeError('Unsupported input\\'s type for URLSearchParams');\r\n }\r\n };\r\n\r\n var proto = URLSearchParams.prototype;\r\n\r\n proto.append = function(name, value) {\r\n if (name in this._entries) {\r\n this._entries[name].push(String(value));\r\n } else {\r\n this._entries[name] = [String(value)];\r\n }\r\n };\r\n\r\n proto.delete = function(name) {\r\n delete this._entries[name];\r\n };\r\n\r\n proto.get = function(name) {\r\n return (name in this._entries) ? this._entries[name][0] : null;\r\n };\r\n\r\n proto.getAll = function(name) {\r\n return (name in this._entries) ? this._entries[name].slice(0) : [];\r\n };\r\n\r\n proto.has = function(name) {\r\n return (name in this._entries);\r\n };\r\n\r\n proto.set = function(name, value) {\r\n this._entries[name] = [String(value)];\r\n };\r\n\r\n proto.forEach = function(callback, thisArg) {\r\n var entries;\r\n for (var name in this._entries) {\r\n if (this._entries.hasOwnProperty(name)) {\r\n entries = this._entries[name];\r\n for (var i = 0; i < entries.length; i++) {\r\n callback.call(thisArg, entries[i], name, this);\r\n }\r\n }\r\n }\r\n };\r\n\r\n proto.keys = function() {\r\n var items = [];\r\n this.forEach(function(value, name) {\r\n items.push(name);\r\n });\r\n return createIterator(items);\r\n };\r\n\r\n proto.values = function() {\r\n var items = [];\r\n this.forEach(function(value) {\r\n items.push(value);\r\n });\r\n return createIterator(items);\r\n };\r\n\r\n proto.entries = function() {\r\n var items = [];\r\n this.forEach(function(value, name) {\r\n items.push([name, value]);\r\n });\r\n return createIterator(items);\r\n };\r\n\r\n if (iteratorSupported) {\r\n proto[Symbol.iterator] = proto.entries;\r\n }\r\n\r\n proto.toString = function() {\r\n var searchArray = [];\r\n this.forEach(function(value, name) {\r\n searchArray.push(serializeParam(name) + '=' + serializeParam(value));\r\n });\r\n return searchArray.join('&');\r\n };\r\n\r\n\r\n global.URLSearchParams = URLSearchParams;\r\n };\r\n\r\n var checkIfURLSearchParamsSupported = function() {\r\n try {\r\n var URLSearchParams = global.URLSearchParams;\r\n\r\n return (\r\n (new URLSearchParams('?a=1').toString() === 'a=1') &&\r\n (typeof URLSearchParams.prototype.set === 'function') &&\r\n (typeof URLSearchParams.prototype.entries === 'function')\r\n );\r\n } catch (e) {\r\n return false;\r\n }\r\n };\r\n\r\n if (!checkIfURLSearchParamsSupported()) {\r\n polyfillURLSearchParams();\r\n }\r\n\r\n var proto = global.URLSearchParams.prototype;\r\n\r\n if (typeof proto.sort !== 'function') {\r\n proto.sort = function() {\r\n var _this = this;\r\n var items = [];\r\n this.forEach(function(value, name) {\r\n items.push([name, value]);\r\n if (!_this._entries) {\r\n _this.delete(name);\r\n }\r\n });\r\n items.sort(function(a, b) {\r\n if (a[0] < b[0]) {\r\n return -1;\r\n } else if (a[0] > b[0]) {\r\n return +1;\r\n } else {\r\n return 0;\r\n }\r\n });\r\n if (_this._entries) { // force reset because IE keeps keys index\r\n _this._entries = {};\r\n }\r\n for (var i = 0; i < items.length; i++) {\r\n this.append(items[i][0], items[i][1]);\r\n }\r\n };\r\n }\r\n\r\n if (typeof proto._fromString !== 'function') {\r\n Object.defineProperty(proto, '_fromString', {\r\n enumerable: false,\r\n configurable: false,\r\n writable: false,\r\n value: function(searchString) {\r\n if (this._entries) {\r\n this._entries = {};\r\n } else {\r\n var keys = [];\r\n this.forEach(function(value, name) {\r\n keys.push(name);\r\n });\r\n for (var i = 0; i < keys.length; i++) {\r\n this.delete(keys[i]);\r\n }\r\n }\r\n\r\n searchString = searchString.replace(/^\\?/, '');\r\n var attributes = searchString.split('&');\r\n var attribute;\r\n for (var i = 0; i < attributes.length; i++) {\r\n attribute = attributes[i].split('=');\r\n this.append(\r\n deserializeParam(attribute[0]),\r\n (attribute.length > 1) ? deserializeParam(attribute[1]) : ''\r\n );\r\n }\r\n }\r\n });\r\n }\r\n\r\n // HTMLAnchorElement\r\n\r\n})(\r\n (typeof global !== 'undefined') ? global\r\n : ((typeof window !== 'undefined') ? window\r\n : ((typeof self !== 'undefined') ? self : this))\r\n);\r\n\r\n(function(global) {\r\n /**\r\n * Polyfill URL\r\n *\r\n * Inspired from : https://github.com/arv/DOM-URL-Polyfill/blob/master/src/url.js\r\n */\r\n\r\n var checkIfURLIsSupported = function() {\r\n try {\r\n var u = new global.URL('b', 'http://a');\r\n u.pathname = 'c d';\r\n return (u.href === 'http://a/c%20d') && u.searchParams;\r\n } catch (e) {\r\n return false;\r\n }\r\n };\r\n\r\n\r\n var polyfillURL = function() {\r\n var _URL = global.URL;\r\n\r\n var URL = function(url, base) {\r\n if (typeof url !== 'string') url = String(url);\r\n if (base && typeof base !== 'string') base = String(base);\r\n\r\n // Only create another document if the base is different from current location.\r\n var doc = document, baseElement;\r\n if (base && (global.location === void 0 || base !== global.location.href)) {\r\n base = base.toLowerCase();\r\n doc = document.implementation.createHTMLDocument('');\r\n baseElement = doc.createElement('base');\r\n baseElement.href = base;\r\n doc.head.appendChild(baseElement);\r\n try {\r\n if (baseElement.href.indexOf(base) !== 0) throw new Error(baseElement.href);\r\n } catch (err) {\r\n throw new Error('URL unable to set base ' + base + ' due to ' + err);\r\n }\r\n }\r\n\r\n var anchorElement = doc.createElement('a');\r\n anchorElement.href = url;\r\n if (baseElement) {\r\n doc.body.appendChild(anchorElement);\r\n anchorElement.href = anchorElement.href; // force href to refresh\r\n }\r\n\r\n var inputElement = doc.createElement('input');\r\n inputElement.type = 'url';\r\n inputElement.value = url;\r\n\r\n if (anchorElement.protocol === ':' || !/:/.test(anchorElement.href) || (!inputElement.checkValidity() && !base)) {\r\n throw new TypeError('Invalid URL');\r\n }\r\n\r\n Object.defineProperty(this, '_anchorElement', {\r\n value: anchorElement\r\n });\r\n\r\n\r\n // create a linked searchParams which reflect its changes on URL\r\n var searchParams = new global.URLSearchParams(this.search);\r\n var enableSearchUpdate = true;\r\n var enableSearchParamsUpdate = true;\r\n var _this = this;\r\n ['append', 'delete', 'set'].forEach(function(methodName) {\r\n var method = searchParams[methodName];\r\n searchParams[methodName] = function() {\r\n method.apply(searchParams, arguments);\r\n if (enableSearchUpdate) {\r\n enableSearchParamsUpdate = false;\r\n _this.search = searchParams.toString();\r\n enableSearchParamsUpdate = true;\r\n }\r\n };\r\n });\r\n\r\n Object.defineProperty(this, 'searchParams', {\r\n value: searchParams,\r\n enumerable: true\r\n });\r\n\r\n var search = void 0;\r\n Object.defineProperty(this, '_updateSearchParams', {\r\n enumerable: false,\r\n configurable: false,\r\n writable: false,\r\n value: function() {\r\n if (this.search !== search) {\r\n search = this.search;\r\n if (enableSearchParamsUpdate) {\r\n enableSearchUpdate = false;\r\n this.searchParams._fromString(this.search);\r\n enableSearchUpdate = true;\r\n }\r\n }\r\n }\r\n });\r\n };\r\n\r\n var proto = URL.prototype;\r\n\r\n var linkURLWithAnchorAttribute = function(attributeName) {\r\n Object.defineProperty(proto, attributeName, {\r\n get: function() {\r\n return this._anchorElement[attributeName];\r\n },\r\n set: function(value) {\r\n this._anchorElement[attributeName] = value;\r\n },\r\n enumerable: true\r\n });\r\n };\r\n\r\n ['hash', 'host', 'hostname', 'port', 'protocol']\r\n .forEach(function(attributeName) {\r\n linkURLWithAnchorAttribute(attributeName);\r\n });\r\n\r\n Object.defineProperty(proto, 'search', {\r\n get: function() {\r\n return this._anchorElement['search'];\r\n },\r\n set: function(value) {\r\n this._anchorElement['search'] = value;\r\n this._updateSearchParams();\r\n },\r\n enumerable: true\r\n });\r\n\r\n Object.defineProperties(proto, {\r\n\r\n 'toString': {\r\n get: function() {\r\n var _this = this;\r\n return function() {\r\n return _this.href;\r\n };\r\n }\r\n },\r\n\r\n 'href': {\r\n get: function() {\r\n return this._anchorElement.href.replace(/\\?$/, '');\r\n },\r\n set: function(value) {\r\n this._anchorElement.href = value;\r\n this._updateSearchParams();\r\n },\r\n enumerable: true\r\n },\r\n\r\n 'pathname': {\r\n get: function() {\r\n return this._anchorElement.pathname.replace(/(^\\/?)/, '/');\r\n },\r\n set: function(value) {\r\n this._anchorElement.pathname = value;\r\n },\r\n enumerable: true\r\n },\r\n\r\n 'origin': {\r\n get: function() {\r\n // get expected port from protocol\r\n var expectedPort = { 'http:': 80, 'https:': 443, 'ftp:': 21 }[this._anchorElement.protocol];\r\n // add port to origin if, expected port is different than actual port\r\n // and it is not empty f.e http://foo:8080\r\n // 8080 != 80 && 8080 != ''\r\n var addPortToOrigin = this._anchorElement.port != expectedPort &&\r\n this._anchorElement.port !== '';\r\n\r\n return this._anchorElement.protocol +\r\n '//' +\r\n this._anchorElement.hostname +\r\n (addPortToOrigin ? (':' + this._anchorElement.port) : '');\r\n },\r\n enumerable: true\r\n },\r\n\r\n 'password': { // TODO\r\n get: function() {\r\n return '';\r\n },\r\n set: function(value) {\r\n },\r\n enumerable: true\r\n },\r\n\r\n 'username': { // TODO\r\n get: function() {\r\n return '';\r\n },\r\n set: function(value) {\r\n },\r\n enumerable: true\r\n },\r\n });\r\n\r\n URL.createObjectURL = function(blob) {\r\n return _URL.createObjectURL.apply(_URL, arguments);\r\n };\r\n\r\n URL.revokeObjectURL = function(url) {\r\n return _URL.revokeObjectURL.apply(_URL, arguments);\r\n };\r\n\r\n global.URL = URL;\r\n\r\n };\r\n\r\n if (!checkIfURLIsSupported()) {\r\n polyfillURL();\r\n }\r\n\r\n if ((global.location !== void 0) && !('origin' in global.location)) {\r\n var getOrigin = function() {\r\n return global.location.protocol + '//' + global.location.hostname + (global.location.port ? 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'copy' : _options$action,\n container = options.container,\n target = options.target,\n text = options.text; // Sets the `action` to be performed which can be either 'copy' or 'cut'.\n\n if (action !== 'copy' && action !== 'cut') {\n throw new Error('Invalid \"action\" value, use either \"copy\" or \"cut\"');\n } // Sets the `target` property using an element that will be have its content copied.\n\n\n if (target !== undefined) {\n if (target && _typeof(target) === 'object' && target.nodeType === 1) {\n if (action === 'copy' && target.hasAttribute('disabled')) {\n throw new Error('Invalid \"target\" attribute. Please use \"readonly\" instead of \"disabled\" attribute');\n }\n\n if (action === 'cut' && (target.hasAttribute('readonly') || target.hasAttribute('disabled'))) {\n throw new Error('Invalid \"target\" attribute. You can\\'t cut text from elements with \"readonly\" or \"disabled\" attributes');\n }\n } else {\n throw new Error('Invalid \"target\" value, use a valid Element');\n }\n } // Define selection strategy based on `text` property.\n\n\n if (text) {\n return actions_copy(text, {\n container: container\n });\n } // Defines which selection strategy based on `target` property.\n\n\n if (target) {\n return action === 'cut' ? actions_cut(target) : actions_copy(target, {\n container: container\n });\n }\n};\n\n/* harmony default export */ var actions_default = (ClipboardActionDefault);\n;// CONCATENATED MODULE: ./src/clipboard.js\nfunction clipboard_typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { clipboard_typeof = function _typeof(obj) { return typeof obj; }; } else { clipboard_typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return clipboard_typeof(obj); }\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }\n\nfunction _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }\n\nfunction _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }\n\nfunction _possibleConstructorReturn(self, call) { if (call && (clipboard_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } return _assertThisInitialized(self); }\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }\n\n\n\n\n\n\n/**\n * Helper function to retrieve attribute value.\n * @param {String} suffix\n * @param {Element} element\n */\n\nfunction getAttributeValue(suffix, element) {\n var attribute = \"data-clipboard-\".concat(suffix);\n\n if (!element.hasAttribute(attribute)) {\n return;\n }\n\n return element.getAttribute(attribute);\n}\n/**\n * Base class which takes one or more elements, adds event listeners to them,\n * and instantiates a new `ClipboardAction` on each click.\n */\n\n\nvar Clipboard = /*#__PURE__*/function (_Emitter) {\n _inherits(Clipboard, _Emitter);\n\n var _super = _createSuper(Clipboard);\n\n /**\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n * @param {Object} options\n */\n function Clipboard(trigger, options) {\n var _this;\n\n _classCallCheck(this, Clipboard);\n\n _this = _super.call(this);\n\n _this.resolveOptions(options);\n\n _this.listenClick(trigger);\n\n return _this;\n }\n /**\n * Defines if attributes would be resolved using internal setter functions\n * or custom functions that were passed in the constructor.\n * @param {Object} options\n */\n\n\n _createClass(Clipboard, [{\n key: \"resolveOptions\",\n value: function resolveOptions() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n this.action = typeof options.action === 'function' ? options.action : this.defaultAction;\n this.target = typeof options.target === 'function' ? options.target : this.defaultTarget;\n this.text = typeof options.text === 'function' ? options.text : this.defaultText;\n this.container = clipboard_typeof(options.container) === 'object' ? options.container : document.body;\n }\n /**\n * Adds a click event listener to the passed trigger.\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n */\n\n }, {\n key: \"listenClick\",\n value: function listenClick(trigger) {\n var _this2 = this;\n\n this.listener = listen_default()(trigger, 'click', function (e) {\n return _this2.onClick(e);\n });\n }\n /**\n * Defines a new `ClipboardAction` on each click event.\n * @param {Event} e\n */\n\n }, {\n key: \"onClick\",\n value: function onClick(e) {\n var trigger = e.delegateTarget || e.currentTarget;\n var action = this.action(trigger) || 'copy';\n var text = actions_default({\n action: action,\n container: this.container,\n target: this.target(trigger),\n text: this.text(trigger)\n }); // Fires an event based on the copy operation result.\n\n this.emit(text ? 'success' : 'error', {\n action: action,\n text: text,\n trigger: trigger,\n clearSelection: function clearSelection() {\n if (trigger) {\n trigger.focus();\n }\n\n window.getSelection().removeAllRanges();\n }\n });\n }\n /**\n * Default `action` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: \"defaultAction\",\n value: function defaultAction(trigger) {\n return getAttributeValue('action', trigger);\n }\n /**\n * Default `target` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: \"defaultTarget\",\n value: function defaultTarget(trigger) {\n var selector = getAttributeValue('target', trigger);\n\n if (selector) {\n return document.querySelector(selector);\n }\n }\n /**\n * Allow fire programmatically a copy action\n * @param {String|HTMLElement} target\n * @param {Object} options\n * @returns Text copied.\n */\n\n }, {\n key: \"defaultText\",\n\n /**\n * Default `text` lookup function.\n * @param {Element} trigger\n */\n value: function defaultText(trigger) {\n return getAttributeValue('text', trigger);\n }\n /**\n * Destroy lifecycle.\n */\n\n }, {\n key: \"destroy\",\n value: function destroy() {\n this.listener.destroy();\n }\n }], [{\n key: \"copy\",\n value: function copy(target) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {\n container: document.body\n };\n return actions_copy(target, options);\n }\n /**\n * Allow fire programmatically a cut action\n * @param {String|HTMLElement} target\n * @returns Text cutted.\n */\n\n }, {\n key: \"cut\",\n value: function cut(target) {\n return actions_cut(target);\n }\n /**\n * Returns the support of the given action, or all actions if no action is\n * given.\n * @param {String} [action]\n */\n\n }, {\n key: \"isSupported\",\n value: function isSupported() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ['copy', 'cut'];\n var actions = typeof action === 'string' ? [action] : action;\n var support = !!document.queryCommandSupported;\n actions.forEach(function (action) {\n support = support && !!document.queryCommandSupported(action);\n });\n return support;\n }\n }]);\n\n return Clipboard;\n}((tiny_emitter_default()));\n\n/* harmony default export */ var clipboard = (Clipboard);\n\n/***/ }),\n\n/***/ 828:\n/***/ (function(module) {\n\nvar DOCUMENT_NODE_TYPE = 9;\n\n/**\n * A polyfill for Element.matches()\n */\nif (typeof Element !== 'undefined' && !Element.prototype.matches) {\n var proto = Element.prototype;\n\n proto.matches = proto.matchesSelector ||\n proto.mozMatchesSelector ||\n proto.msMatchesSelector ||\n proto.oMatchesSelector ||\n proto.webkitMatchesSelector;\n}\n\n/**\n * Finds the closest parent that matches a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @return {Function}\n */\nfunction closest (element, selector) {\n while (element && element.nodeType !== DOCUMENT_NODE_TYPE) {\n if (typeof element.matches === 'function' &&\n element.matches(selector)) {\n return element;\n }\n element = element.parentNode;\n }\n}\n\nmodule.exports = closest;\n\n\n/***/ }),\n\n/***/ 438:\n/***/ (function(module, __unused_webpack_exports, __webpack_require__) {\n\nvar closest = __webpack_require__(828);\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction _delegate(element, selector, type, callback, useCapture) {\n var listenerFn = listener.apply(this, arguments);\n\n element.addEventListener(type, listenerFn, useCapture);\n\n return {\n destroy: function() {\n element.removeEventListener(type, listenerFn, useCapture);\n }\n }\n}\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element|String|Array} [elements]\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction delegate(elements, selector, type, callback, useCapture) {\n // Handle the regular Element usage\n if (typeof elements.addEventListener === 'function') {\n return _delegate.apply(null, arguments);\n }\n\n // Handle Element-less usage, it defaults to global delegation\n if (typeof type === 'function') {\n // Use `document` as the first parameter, then apply arguments\n // This is a short way to .unshift `arguments` without running into deoptimizations\n return _delegate.bind(null, document).apply(null, arguments);\n }\n\n // Handle Selector-based usage\n if (typeof elements === 'string') {\n elements = document.querySelectorAll(elements);\n }\n\n // Handle Array-like based usage\n return Array.prototype.map.call(elements, function (element) {\n return _delegate(element, selector, type, callback, useCapture);\n });\n}\n\n/**\n * Finds closest match and invokes callback.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Function}\n */\nfunction listener(element, selector, type, callback) {\n return function(e) {\n e.delegateTarget = closest(e.target, selector);\n\n if (e.delegateTarget) {\n callback.call(element, e);\n }\n }\n}\n\nmodule.exports = delegate;\n\n\n/***/ }),\n\n/***/ 879:\n/***/ (function(__unused_webpack_module, exports) {\n\n/**\n * Check if argument is a HTML element.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.node = function(value) {\n return value !== undefined\n && value instanceof HTMLElement\n && value.nodeType === 1;\n};\n\n/**\n * Check if argument is a list of HTML elements.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.nodeList = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return value !== undefined\n && (type === '[object NodeList]' || type === '[object HTMLCollection]')\n && ('length' in value)\n && (value.length === 0 || exports.node(value[0]));\n};\n\n/**\n * Check if argument is a string.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.string = function(value) {\n return typeof value === 'string'\n || value instanceof String;\n};\n\n/**\n * Check if argument is a function.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.fn = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return type === '[object Function]';\n};\n\n\n/***/ }),\n\n/***/ 370:\n/***/ (function(module, __unused_webpack_exports, __webpack_require__) {\n\nvar is = __webpack_require__(879);\nvar delegate = __webpack_require__(438);\n\n/**\n * Validates all params and calls the right\n * listener function based on its target type.\n *\n * @param {String|HTMLElement|HTMLCollection|NodeList} target\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listen(target, type, callback) {\n if (!target && !type && !callback) {\n throw new Error('Missing required arguments');\n }\n\n if (!is.string(type)) {\n throw new TypeError('Second argument must be a String');\n }\n\n if (!is.fn(callback)) {\n throw new TypeError('Third argument must be a Function');\n }\n\n if (is.node(target)) {\n return listenNode(target, type, callback);\n }\n else if (is.nodeList(target)) {\n return listenNodeList(target, type, callback);\n }\n else if (is.string(target)) {\n return listenSelector(target, type, callback);\n }\n else {\n throw new TypeError('First argument must be a String, HTMLElement, HTMLCollection, or NodeList');\n }\n}\n\n/**\n * Adds an event listener to a HTML element\n * and returns a remove listener function.\n *\n * @param {HTMLElement} node\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNode(node, type, callback) {\n node.addEventListener(type, callback);\n\n return {\n destroy: function() {\n node.removeEventListener(type, callback);\n }\n }\n}\n\n/**\n * Add an event listener to a list of HTML elements\n * and returns a remove listener function.\n *\n * @param {NodeList|HTMLCollection} nodeList\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNodeList(nodeList, type, callback) {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.addEventListener(type, callback);\n });\n\n return {\n destroy: function() {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.removeEventListener(type, callback);\n });\n }\n }\n}\n\n/**\n * Add an event listener to a selector\n * and returns a remove listener function.\n *\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenSelector(selector, type, callback) {\n return delegate(document.body, selector, type, callback);\n}\n\nmodule.exports = listen;\n\n\n/***/ }),\n\n/***/ 817:\n/***/ (function(module) {\n\nfunction select(element) {\n var selectedText;\n\n if (element.nodeName === 'SELECT') {\n element.focus();\n\n selectedText = element.value;\n }\n else if (element.nodeName === 'INPUT' || element.nodeName === 'TEXTAREA') {\n var isReadOnly = element.hasAttribute('readonly');\n\n if (!isReadOnly) {\n element.setAttribute('readonly', '');\n }\n\n element.select();\n element.setSelectionRange(0, element.value.length);\n\n if (!isReadOnly) {\n element.removeAttribute('readonly');\n }\n\n selectedText = element.value;\n }\n else {\n if (element.hasAttribute('contenteditable')) {\n element.focus();\n }\n\n var selection = window.getSelection();\n var range = document.createRange();\n\n range.selectNodeContents(element);\n selection.removeAllRanges();\n selection.addRange(range);\n\n selectedText = selection.toString();\n }\n\n return selectedText;\n}\n\nmodule.exports = select;\n\n\n/***/ }),\n\n/***/ 279:\n/***/ (function(module) {\n\nfunction E () {\n // Keep this empty so it's easier to inherit from\n // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)\n}\n\nE.prototype = {\n on: function (name, callback, ctx) {\n var e = this.e || (this.e = {});\n\n (e[name] || (e[name] = [])).push({\n fn: callback,\n ctx: ctx\n });\n\n return this;\n },\n\n once: function (name, callback, ctx) {\n var self = this;\n function listener () {\n self.off(name, listener);\n callback.apply(ctx, arguments);\n };\n\n listener._ = callback\n return this.on(name, listener, ctx);\n },\n\n emit: function (name) {\n var data = [].slice.call(arguments, 1);\n var evtArr = ((this.e || (this.e = {}))[name] || []).slice();\n var i = 0;\n var len = evtArr.length;\n\n for (i; i < len; i++) {\n evtArr[i].fn.apply(evtArr[i].ctx, data);\n }\n\n return this;\n },\n\n off: function (name, callback) {\n var e = this.e || (this.e = {});\n var evts = e[name];\n var liveEvents = [];\n\n if (evts && callback) {\n for (var i = 0, len = evts.length; i < len; i++) {\n if (evts[i].fn !== callback && evts[i].fn._ !== callback)\n liveEvents.push(evts[i]);\n }\n }\n\n // Remove event from queue to prevent memory leak\n // Suggested by https://github.com/lazd\n // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910\n\n (liveEvents.length)\n ? e[name] = liveEvents\n : delete e[name];\n\n return this;\n }\n};\n\nmodule.exports = E;\nmodule.exports.TinyEmitter = E;\n\n\n/***/ })\n\n/******/ \t});\n/************************************************************************/\n/******/ \t// The module cache\n/******/ \tvar __webpack_module_cache__ = {};\n/******/ \t\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(__webpack_module_cache__[moduleId]) {\n/******/ \t\t\treturn __webpack_module_cache__[moduleId].exports;\n/******/ \t\t}\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = __webpack_module_cache__[moduleId] = {\n/******/ \t\t\t// no module.id needed\n/******/ \t\t\t// no module.loaded needed\n/******/ \t\t\texports: {}\n/******/ \t\t};\n/******/ \t\n/******/ \t\t// Execute the module function\n/******/ \t\t__webpack_modules__[moduleId](module, module.exports, __webpack_require__);\n/******/ \t\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/ \t\n/************************************************************************/\n/******/ \t/* webpack/runtime/compat get default export */\n/******/ \t!function() {\n/******/ \t\t// getDefaultExport function for compatibility with non-harmony modules\n/******/ \t\t__webpack_require__.n = function(module) {\n/******/ \t\t\tvar getter = module && module.__esModule ?\n/******/ \t\t\t\tfunction() { return module['default']; } :\n/******/ \t\t\t\tfunction() { return module; };\n/******/ \t\t\t__webpack_require__.d(getter, { a: getter });\n/******/ \t\t\treturn getter;\n/******/ \t\t};\n/******/ \t}();\n/******/ \t\n/******/ \t/* webpack/runtime/define property getters */\n/******/ \t!function() {\n/******/ \t\t// define getter functions for harmony exports\n/******/ \t\t__webpack_require__.d = function(exports, definition) {\n/******/ \t\t\tfor(var key in definition) {\n/******/ \t\t\t\tif(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {\n/******/ \t\t\t\t\tObject.defineProperty(exports, key, { enumerable: true, get: definition[key] });\n/******/ \t\t\t\t}\n/******/ \t\t\t}\n/******/ \t\t};\n/******/ \t}();\n/******/ \t\n/******/ \t/* webpack/runtime/hasOwnProperty shorthand */\n/******/ \t!function() {\n/******/ \t\t__webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }\n/******/ \t}();\n/******/ \t\n/************************************************************************/\n/******/ \t// module exports must be returned from runtime so entry inlining is disabled\n/******/ \t// startup\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(686);\n/******/ })()\n.default;\n});", "/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n", "Array.prototype.flat||Object.defineProperty(Array.prototype,\"flat\",{configurable:!0,value:function r(){var t=isNaN(arguments[0])?1:Number(arguments[0]);return t?Array.prototype.reduce.call(this,function(a,e){return Array.isArray(e)?a.push.apply(a,r.call(e,t-1)):a.push(e),a},[]):Array.prototype.slice.call(this)},writable:!0}),Array.prototype.flatMap||Object.defineProperty(Array.prototype,\"flatMap\",{configurable:!0,value:function(r){return Array.prototype.map.apply(this,arguments).flat()},writable:!0})\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport \"array-flat-polyfill\"\nimport \"focus-visible\"\nimport \"unfetch/polyfill\"\nimport \"url-polyfill\"\n\nimport {\n EMPTY,\n NEVER,\n Subject,\n defer,\n delay,\n filter,\n map,\n merge,\n mergeWith,\n shareReplay,\n switchMap\n} from \"rxjs\"\n\nimport { configuration, feature } from \"./_\"\nimport {\n at,\n getOptionalElement,\n requestJSON,\n setToggle,\n watchDocument,\n watchKeyboard,\n watchLocation,\n watchLocationTarget,\n watchMedia,\n watchPrint,\n watchViewport\n} from \"./browser\"\nimport {\n getComponentElement,\n getComponentElements,\n mountBackToTop,\n mountContent,\n mountDialog,\n mountHeader,\n mountHeaderTitle,\n mountPalette,\n mountSearch,\n mountSearchHiglight,\n mountSidebar,\n mountSource,\n mountTableOfContents,\n mountTabs,\n watchHeader,\n watchMain\n} from \"./components\"\nimport {\n SearchIndex,\n setupClipboardJS,\n setupInstantLoading,\n setupVersionSelector\n} from \"./integrations\"\nimport {\n patchIndeterminate,\n patchScrollfix,\n patchScrolllock\n} from \"./patches\"\nimport \"./polyfills\"\n\n/* ----------------------------------------------------------------------------\n * Application\n * ------------------------------------------------------------------------- */\n\n/* Yay, JavaScript is available */\ndocument.documentElement.classList.remove(\"no-js\")\ndocument.documentElement.classList.add(\"js\")\n\n/* Set up navigation observables and subjects */\nconst document$ = watchDocument()\nconst location$ = watchLocation()\nconst target$ = watchLocationTarget()\nconst keyboard$ = watchKeyboard()\n\n/* Set up media observables */\nconst viewport$ = watchViewport()\nconst tablet$ = watchMedia(\"(min-width: 960px)\")\nconst screen$ = watchMedia(\"(min-width: 1220px)\")\nconst print$ = watchPrint()\n\n/* Retrieve search index, if search is enabled */\nconst config = configuration()\nconst index$ = document.forms.namedItem(\"search\")\n ? __search?.index || requestJSON(\n new URL(\"search/search_index.json\", config.base)\n )\n : NEVER\n\n/* Set up Clipboard.js integration */\nconst alert$ = new Subject()\nsetupClipboardJS({ alert$ })\n\n/* Set up instant loading, if enabled */\nif (feature(\"navigation.instant\"))\n setupInstantLoading({ document$, location$, viewport$ })\n\n/* Set up version selector */\nif (config.version?.provider === \"mike\")\n setupVersionSelector({ document$ })\n\n/* Always close drawer and search on navigation */\nmerge(location$, target$)\n .pipe(\n delay(125)\n )\n .subscribe(() => {\n setToggle(\"drawer\", false)\n setToggle(\"search\", false)\n })\n\n/* Set up global keyboard handlers */\nkeyboard$\n .pipe(\n filter(({ mode }) => mode === \"global\")\n )\n .subscribe(key => {\n switch (key.type) {\n\n /* Go to previous page */\n case \"p\":\n case \",\":\n const prev = getOptionalElement(\"[href][rel=prev]\")\n if (typeof prev !== \"undefined\")\n prev.click()\n break\n\n /* Go to next page */\n case \"n\":\n case \".\":\n const next = getOptionalElement(\"[href][rel=next]\")\n if (typeof next !== \"undefined\")\n next.click()\n break\n }\n })\n\n/* Set up patches */\npatchIndeterminate({ document$, tablet$ })\npatchScrollfix({ document$ })\npatchScrolllock({ viewport$, tablet$ })\n\n/* Set up header and main area observable */\nconst header$ = watchHeader(getComponentElement(\"header\"), { viewport$ })\nconst main$ = document$\n .pipe(\n map(() => getComponentElement(\"main\")),\n switchMap(el => watchMain(el, { viewport$, header$ })),\n shareReplay(1)\n )\n\n/* Set up control component observables */\nconst control$ = merge(\n\n /* Dialog */\n ...getComponentElements(\"dialog\")\n .map(el => mountDialog(el, { alert$ })),\n\n /* Header */\n ...getComponentElements(\"header\")\n .map(el => mountHeader(el, { viewport$, header$, main$ })),\n\n /* Color palette */\n ...getComponentElements(\"palette\")\n .map(el => mountPalette(el)),\n\n /* Search */\n ...getComponentElements(\"search\")\n .map(el => mountSearch(el, { index$, keyboard$ })),\n\n /* Repository information */\n ...getComponentElements(\"source\")\n .map(el => mountSource(el))\n)\n\n/* Set up content component observables */\nconst content$ = defer(() => merge(\n\n /* Content */\n ...getComponentElements(\"content\")\n .map(el => mountContent(el, { target$, print$ })),\n\n /* Search highlighting */\n ...getComponentElements(\"content\")\n .map(el => feature(\"search.highlight\")\n ? mountSearchHiglight(el, { index$, location$ })\n : EMPTY\n ),\n\n /* Header title */\n ...getComponentElements(\"header-title\")\n .map(el => mountHeaderTitle(el, { viewport$, header$ })),\n\n /* Sidebar */\n ...getComponentElements(\"sidebar\")\n .map(el => el.getAttribute(\"data-md-type\") === \"navigation\"\n ? at(screen$, () => mountSidebar(el, { viewport$, header$, main$ }))\n : at(tablet$, () => mountSidebar(el, { viewport$, header$, main$ }))\n ),\n\n /* Navigation tabs */\n ...getComponentElements(\"tabs\")\n .map(el => mountTabs(el, { viewport$, header$ })),\n\n /* Table of contents */\n ...getComponentElements(\"toc\")\n .map(el => mountTableOfContents(el, { viewport$, header$, target$ })),\n\n /* Back-to-top button */\n ...getComponentElements(\"top\")\n .map(el => mountBackToTop(el, { viewport$, header$, main$, target$ }))\n))\n\n/* Set up component observables */\nconst component$ = document$\n .pipe(\n switchMap(() => content$),\n mergeWith(control$),\n shareReplay(1)\n )\n\n/* Subscribe to all components */\ncomponent$.subscribe()\n\n/* ----------------------------------------------------------------------------\n * Exports\n * ------------------------------------------------------------------------- */\n\nwindow.document$ = document$ /* Document observable */\nwindow.location$ = location$ /* Location subject */\nwindow.target$ = target$ /* Location target observable */\nwindow.keyboard$ = keyboard$ /* Keyboard observable */\nwindow.viewport$ = viewport$ /* Viewport observable */\nwindow.tablet$ = tablet$ /* Media tablet observable */\nwindow.screen$ = screen$ /* Media screen observable */\nwindow.print$ = print$ /* Media print observable */\nwindow.alert$ = alert$ /* Alert subject */\nwindow.component$ = component$ /* Component observable */\n", "self.fetch||(self.fetch=function(e,n){return n=n||{},new Promise(function(t,s){var r=new XMLHttpRequest,o=[],u=[],i={},a=function(){return{ok:2==(r.status/100|0),statusText:r.statusText,status:r.status,url:r.responseURL,text:function(){return Promise.resolve(r.responseText)},json:function(){return Promise.resolve(r.responseText).then(JSON.parse)},blob:function(){return Promise.resolve(new Blob([r.response]))},clone:a,headers:{keys:function(){return o},entries:function(){return u},get:function(e){return i[e.toLowerCase()]},has:function(e){return e.toLowerCase()in i}}}};for(var c in r.open(n.method||\"get\",e,!0),r.onload=function(){r.getAllResponseHeaders().replace(/^(.*?):[^\\S\\n]*([\\s\\S]*?)$/gm,function(e,n,t){o.push(n=n.toLowerCase()),u.push([n,t]),i[n]=i[n]?i[n]+\",\"+t:t}),t(a())},r.onerror=s,r.withCredentials=\"include\"==n.credentials,n.headers)r.setRequestHeader(c,n.headers[c]);r.send(n.body||null)})});\n", "import tslib from '../tslib.js';\r\nconst {\r\n __extends,\r\n __assign,\r\n __rest,\r\n __decorate,\r\n __param,\r\n __metadata,\r\n __awaiter,\r\n __generator,\r\n __exportStar,\r\n __createBinding,\r\n __values,\r\n __read,\r\n __spread,\r\n __spreadArrays,\r\n __spreadArray,\r\n __await,\r\n __asyncGenerator,\r\n __asyncDelegator,\r\n __asyncValues,\r\n __makeTemplateObject,\r\n __importStar,\r\n __importDefault,\r\n __classPrivateFieldGet,\r\n __classPrivateFieldSet,\r\n} = tslib;\r\nexport {\r\n __extends,\r\n __assign,\r\n __rest,\r\n __decorate,\r\n __param,\r\n __metadata,\r\n __awaiter,\r\n __generator,\r\n __exportStar,\r\n __createBinding,\r\n __values,\r\n __read,\r\n __spread,\r\n __spreadArrays,\r\n __spreadArray,\r\n __await,\r\n __asyncGenerator,\r\n __asyncDelegator,\r\n __asyncValues,\r\n __makeTemplateObject,\r\n __importStar,\r\n __importDefault,\r\n __classPrivateFieldGet,\r\n __classPrivateFieldSet,\r\n};\r\n", null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n ReplaySubject,\n Subject,\n fromEvent\n} from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch document\n *\n * Documents are implemented as subjects, so all downstream observables are\n * automatically updated when a new document is emitted.\n *\n * @returns Document subject\n */\nexport function watchDocument(): Subject {\n const document$ = new ReplaySubject(1)\n fromEvent(document, \"DOMContentLoaded\", { once: true })\n .subscribe(() => document$.next(document))\n\n /* Return document */\n return document$\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve all elements matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @returns Elements\n */\nexport function getElements(\n selector: T, node?: ParentNode\n): HTMLElementTagNameMap[T][]\n\nexport function getElements(\n selector: string, node?: ParentNode\n): T[]\n\nexport function getElements(\n selector: string, node: ParentNode = document\n): T[] {\n return Array.from(node.querySelectorAll(selector))\n}\n\n/**\n * Retrieve an element matching a query selector or throw a reference error\n *\n * Note that this function assumes that the element is present. If unsure if an\n * element is existent, use the `getOptionalElement` function instead.\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @returns Element\n */\nexport function getElement(\n selector: T, node?: ParentNode\n): HTMLElementTagNameMap[T]\n\nexport function getElement(\n selector: string, node?: ParentNode\n): T\n\nexport function getElement(\n selector: string, node: ParentNode = document\n): T {\n const el = getOptionalElement(selector, node)\n if (typeof el === \"undefined\")\n throw new ReferenceError(\n `Missing element: expected \"${selector}\" to be present`\n )\n\n /* Return element */\n return el\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Retrieve an optional element matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @returns Element or nothing\n */\nexport function getOptionalElement(\n selector: T, node?: ParentNode\n): HTMLElementTagNameMap[T] | undefined\n\nexport function getOptionalElement(\n selector: string, node?: ParentNode\n): T | undefined\n\nexport function getOptionalElement(\n selector: string, node: ParentNode = document\n): T | undefined {\n return node.querySelector(selector) || undefined\n}\n\n/**\n * Retrieve the currently active element\n *\n * @returns Element or nothing\n */\nexport function getActiveElement(): HTMLElement | undefined {\n return document.activeElement instanceof HTMLElement\n ? document.activeElement || undefined\n : undefined\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n debounceTime,\n distinctUntilChanged,\n fromEvent,\n map,\n merge,\n startWith\n} from \"rxjs\"\n\nimport { getActiveElement } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch element focus\n *\n * Previously, this function used `focus` and `blur` events to determine whether\n * an element is focused, but this doesn't work if there are focusable elements\n * within the elements itself. A better solutions are `focusin` and `focusout`\n * events, which bubble up the tree and allow for more fine-grained control.\n *\n * `debounceTime` is necessary, because when a focus change happens inside an\n * element, the observable would first emit `false` and then `true` again.\n *\n * @param el - Element\n *\n * @returns Element focus observable\n */\nexport function watchElementFocus(\n el: HTMLElement\n): Observable {\n return merge(\n fromEvent(document.body, \"focusin\"),\n fromEvent(document.body, \"focusout\")\n )\n .pipe(\n debounceTime(1),\n map(() => {\n const active = getActiveElement()\n return typeof active !== \"undefined\"\n ? el.contains(active)\n : false\n }),\n startWith(el === getActiveElement()),\n distinctUntilChanged()\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n animationFrameScheduler,\n auditTime,\n fromEvent,\n map,\n merge,\n startWith\n} from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementOffset {\n x: number /* Horizontal offset */\n y: number /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element offset\n *\n * @param el - Element\n *\n * @returns Element offset\n */\nexport function getElementOffset(\n el: HTMLElement\n): ElementOffset {\n return {\n x: el.offsetLeft,\n y: el.offsetTop\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element offset\n *\n * @param el - Element\n *\n * @returns Element offset observable\n */\nexport function watchElementOffset(\n el: HTMLElement\n): Observable {\n return merge(\n fromEvent(window, \"load\"),\n fromEvent(window, \"resize\")\n )\n .pipe(\n auditTime(0, animationFrameScheduler),\n map(() => getElementOffset(el)),\n startWith(getElementOffset(el))\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n animationFrameScheduler,\n auditTime,\n fromEvent,\n map,\n merge,\n startWith\n} from \"rxjs\"\n\nimport { ElementOffset } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element content offset (= scroll offset)\n *\n * @param el - Element\n *\n * @returns Element content offset\n */\nexport function getElementContentOffset(\n el: HTMLElement\n): ElementOffset {\n return {\n x: el.scrollLeft,\n y: el.scrollTop\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element content offset\n *\n * @param el - Element\n *\n * @returns Element content offset observable\n */\nexport function watchElementContentOffset(\n el: HTMLElement\n): Observable {\n return merge(\n fromEvent(el, \"scroll\"),\n fromEvent(window, \"resize\")\n )\n .pipe(\n auditTime(0, animationFrameScheduler),\n map(() => getElementContentOffset(el)),\n startWith(getElementContentOffset(el))\n )\n}\n", "/**\r\n * A collection of shims that provide minimal functionality of the ES6 collections.\r\n *\r\n * These implementations are not meant to be used outside of the ResizeObserver\r\n * modules as they cover only a limited range of use cases.\r\n */\r\n/* eslint-disable require-jsdoc, valid-jsdoc */\r\nvar MapShim = (function () {\r\n if (typeof Map !== 'undefined') {\r\n return Map;\r\n }\r\n /**\r\n * Returns index in provided array that matches the specified key.\r\n *\r\n * @param {Array} arr\r\n * @param {*} key\r\n * @returns {number}\r\n */\r\n function getIndex(arr, key) {\r\n var result = -1;\r\n arr.some(function (entry, index) {\r\n if (entry[0] === key) {\r\n result = index;\r\n return true;\r\n }\r\n return false;\r\n });\r\n return result;\r\n }\r\n return /** @class */ (function () {\r\n function class_1() {\r\n this.__entries__ = [];\r\n }\r\n Object.defineProperty(class_1.prototype, \"size\", {\r\n /**\r\n * @returns {boolean}\r\n */\r\n get: function () {\r\n return this.__entries__.length;\r\n },\r\n enumerable: true,\r\n configurable: true\r\n });\r\n /**\r\n * @param {*} key\r\n * @returns {*}\r\n */\r\n class_1.prototype.get = function (key) {\r\n var index = getIndex(this.__entries__, key);\r\n var entry = this.__entries__[index];\r\n return entry && entry[1];\r\n };\r\n /**\r\n * @param {*} key\r\n * @param {*} value\r\n * @returns {void}\r\n */\r\n class_1.prototype.set = function (key, value) {\r\n var index = getIndex(this.__entries__, key);\r\n if (~index) {\r\n this.__entries__[index][1] = value;\r\n }\r\n else {\r\n this.__entries__.push([key, value]);\r\n }\r\n };\r\n /**\r\n * @param {*} key\r\n * @returns {void}\r\n */\r\n class_1.prototype.delete = function (key) {\r\n var entries = this.__entries__;\r\n var index = getIndex(entries, key);\r\n if (~index) {\r\n entries.splice(index, 1);\r\n }\r\n };\r\n /**\r\n * @param {*} key\r\n * @returns {void}\r\n */\r\n class_1.prototype.has = function (key) {\r\n return !!~getIndex(this.__entries__, key);\r\n };\r\n /**\r\n * @returns {void}\r\n */\r\n class_1.prototype.clear = function () {\r\n this.__entries__.splice(0);\r\n };\r\n /**\r\n * @param {Function} callback\r\n * @param {*} [ctx=null]\r\n * @returns {void}\r\n */\r\n class_1.prototype.forEach = function (callback, ctx) {\r\n if (ctx === void 0) { ctx = null; }\r\n for (var _i = 0, _a = this.__entries__; _i < _a.length; _i++) {\r\n var entry = _a[_i];\r\n callback.call(ctx, entry[1], entry[0]);\r\n }\r\n };\r\n return class_1;\r\n }());\r\n})();\n\n/**\r\n * Detects whether window and document objects are available in current environment.\r\n */\r\nvar isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined' && window.document === document;\n\n// Returns global object of a current environment.\r\nvar global$1 = (function () {\r\n if (typeof global !== 'undefined' && global.Math === Math) {\r\n return global;\r\n }\r\n if (typeof self !== 'undefined' && self.Math === Math) {\r\n return self;\r\n }\r\n if (typeof window !== 'undefined' && window.Math === Math) {\r\n return window;\r\n }\r\n // eslint-disable-next-line no-new-func\r\n return Function('return this')();\r\n})();\n\n/**\r\n * A shim for the requestAnimationFrame which falls back to the setTimeout if\r\n * first one is not supported.\r\n *\r\n * @returns {number} Requests' identifier.\r\n */\r\nvar requestAnimationFrame$1 = (function () {\r\n if (typeof requestAnimationFrame === 'function') {\r\n // It's required to use a bounded function because IE sometimes throws\r\n // an \"Invalid calling object\" error if rAF is invoked without the global\r\n // object on the left hand side.\r\n return requestAnimationFrame.bind(global$1);\r\n }\r\n return function (callback) { return setTimeout(function () { return callback(Date.now()); }, 1000 / 60); };\r\n})();\n\n// Defines minimum timeout before adding a trailing call.\r\nvar trailingTimeout = 2;\r\n/**\r\n * Creates a wrapper function which ensures that provided callback will be\r\n * invoked only once during the specified delay period.\r\n *\r\n * @param {Function} callback - Function to be invoked after the delay period.\r\n * @param {number} delay - Delay after which to invoke callback.\r\n * @returns {Function}\r\n */\r\nfunction throttle (callback, delay) {\r\n var leadingCall = false, trailingCall = false, lastCallTime = 0;\r\n /**\r\n * Invokes the original callback function and schedules new invocation if\r\n * the \"proxy\" was called during current request.\r\n *\r\n * @returns {void}\r\n */\r\n function resolvePending() {\r\n if (leadingCall) {\r\n leadingCall = false;\r\n callback();\r\n }\r\n if (trailingCall) {\r\n proxy();\r\n }\r\n }\r\n /**\r\n * Callback invoked after the specified delay. It will further postpone\r\n * invocation of the original function delegating it to the\r\n * requestAnimationFrame.\r\n *\r\n * @returns {void}\r\n */\r\n function timeoutCallback() {\r\n requestAnimationFrame$1(resolvePending);\r\n }\r\n /**\r\n * Schedules invocation of the original function.\r\n *\r\n * @returns {void}\r\n */\r\n function proxy() {\r\n var timeStamp = Date.now();\r\n if (leadingCall) {\r\n // Reject immediately following calls.\r\n if (timeStamp - lastCallTime < trailingTimeout) {\r\n return;\r\n }\r\n // Schedule new call to be in invoked when the pending one is resolved.\r\n // This is important for \"transitions\" which never actually start\r\n // immediately so there is a chance that we might miss one if change\r\n // happens amids the pending invocation.\r\n trailingCall = true;\r\n }\r\n else {\r\n leadingCall = true;\r\n trailingCall = false;\r\n setTimeout(timeoutCallback, delay);\r\n }\r\n lastCallTime = timeStamp;\r\n }\r\n return proxy;\r\n}\n\n// Minimum delay before invoking the update of observers.\r\nvar REFRESH_DELAY = 20;\r\n// A list of substrings of CSS properties used to find transition events that\r\n// might affect dimensions of observed elements.\r\nvar transitionKeys = ['top', 'right', 'bottom', 'left', 'width', 'height', 'size', 'weight'];\r\n// Check if MutationObserver is available.\r\nvar mutationObserverSupported = typeof MutationObserver !== 'undefined';\r\n/**\r\n * Singleton controller class which handles updates of ResizeObserver instances.\r\n */\r\nvar ResizeObserverController = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserverController.\r\n *\r\n * @private\r\n */\r\n function ResizeObserverController() {\r\n /**\r\n * Indicates whether DOM listeners have been added.\r\n *\r\n * @private {boolean}\r\n */\r\n this.connected_ = false;\r\n /**\r\n * Tells that controller has subscribed for Mutation Events.\r\n *\r\n * @private {boolean}\r\n */\r\n this.mutationEventsAdded_ = false;\r\n /**\r\n * Keeps reference to the instance of MutationObserver.\r\n *\r\n * @private {MutationObserver}\r\n */\r\n this.mutationsObserver_ = null;\r\n /**\r\n * A list of connected observers.\r\n *\r\n * @private {Array}\r\n */\r\n this.observers_ = [];\r\n this.onTransitionEnd_ = this.onTransitionEnd_.bind(this);\r\n this.refresh = throttle(this.refresh.bind(this), REFRESH_DELAY);\r\n }\r\n /**\r\n * Adds observer to observers list.\r\n *\r\n * @param {ResizeObserverSPI} observer - Observer to be added.\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.addObserver = function (observer) {\r\n if (!~this.observers_.indexOf(observer)) {\r\n this.observers_.push(observer);\r\n }\r\n // Add listeners if they haven't been added yet.\r\n if (!this.connected_) {\r\n this.connect_();\r\n }\r\n };\r\n /**\r\n * Removes observer from observers list.\r\n *\r\n * @param {ResizeObserverSPI} observer - Observer to be removed.\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.removeObserver = function (observer) {\r\n var observers = this.observers_;\r\n var index = observers.indexOf(observer);\r\n // Remove observer if it's present in registry.\r\n if (~index) {\r\n observers.splice(index, 1);\r\n }\r\n // Remove listeners if controller has no connected observers.\r\n if (!observers.length && this.connected_) {\r\n this.disconnect_();\r\n }\r\n };\r\n /**\r\n * Invokes the update of observers. It will continue running updates insofar\r\n * it detects changes.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.refresh = function () {\r\n var changesDetected = this.updateObservers_();\r\n // Continue running updates if changes have been detected as there might\r\n // be future ones caused by CSS transitions.\r\n if (changesDetected) {\r\n this.refresh();\r\n }\r\n };\r\n /**\r\n * Updates every observer from observers list and notifies them of queued\r\n * entries.\r\n *\r\n * @private\r\n * @returns {boolean} Returns \"true\" if any observer has detected changes in\r\n * dimensions of it's elements.\r\n */\r\n ResizeObserverController.prototype.updateObservers_ = function () {\r\n // Collect observers that have active observations.\r\n var activeObservers = this.observers_.filter(function (observer) {\r\n return observer.gatherActive(), observer.hasActive();\r\n });\r\n // Deliver notifications in a separate cycle in order to avoid any\r\n // collisions between observers, e.g. when multiple instances of\r\n // ResizeObserver are tracking the same element and the callback of one\r\n // of them changes content dimensions of the observed target. Sometimes\r\n // this may result in notifications being blocked for the rest of observers.\r\n activeObservers.forEach(function (observer) { return observer.broadcastActive(); });\r\n return activeObservers.length > 0;\r\n };\r\n /**\r\n * Initializes DOM listeners.\r\n *\r\n * @private\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.connect_ = function () {\r\n // Do nothing if running in a non-browser environment or if listeners\r\n // have been already added.\r\n if (!isBrowser || this.connected_) {\r\n return;\r\n }\r\n // Subscription to the \"Transitionend\" event is used as a workaround for\r\n // delayed transitions. This way it's possible to capture at least the\r\n // final state of an element.\r\n document.addEventListener('transitionend', this.onTransitionEnd_);\r\n window.addEventListener('resize', this.refresh);\r\n if (mutationObserverSupported) {\r\n this.mutationsObserver_ = new MutationObserver(this.refresh);\r\n this.mutationsObserver_.observe(document, {\r\n attributes: true,\r\n childList: true,\r\n characterData: true,\r\n subtree: true\r\n });\r\n }\r\n else {\r\n document.addEventListener('DOMSubtreeModified', this.refresh);\r\n this.mutationEventsAdded_ = true;\r\n }\r\n this.connected_ = true;\r\n };\r\n /**\r\n * Removes DOM listeners.\r\n *\r\n * @private\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.disconnect_ = function () {\r\n // Do nothing if running in a non-browser environment or if listeners\r\n // have been already removed.\r\n if (!isBrowser || !this.connected_) {\r\n return;\r\n }\r\n document.removeEventListener('transitionend', this.onTransitionEnd_);\r\n window.removeEventListener('resize', this.refresh);\r\n if (this.mutationsObserver_) {\r\n this.mutationsObserver_.disconnect();\r\n }\r\n if (this.mutationEventsAdded_) {\r\n document.removeEventListener('DOMSubtreeModified', this.refresh);\r\n }\r\n this.mutationsObserver_ = null;\r\n this.mutationEventsAdded_ = false;\r\n this.connected_ = false;\r\n };\r\n /**\r\n * \"Transitionend\" event handler.\r\n *\r\n * @private\r\n * @param {TransitionEvent} event\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.onTransitionEnd_ = function (_a) {\r\n var _b = _a.propertyName, propertyName = _b === void 0 ? '' : _b;\r\n // Detect whether transition may affect dimensions of an element.\r\n var isReflowProperty = transitionKeys.some(function (key) {\r\n return !!~propertyName.indexOf(key);\r\n });\r\n if (isReflowProperty) {\r\n this.refresh();\r\n }\r\n };\r\n /**\r\n * Returns instance of the ResizeObserverController.\r\n *\r\n * @returns {ResizeObserverController}\r\n */\r\n ResizeObserverController.getInstance = function () {\r\n if (!this.instance_) {\r\n this.instance_ = new ResizeObserverController();\r\n }\r\n return this.instance_;\r\n };\r\n /**\r\n * Holds reference to the controller's instance.\r\n *\r\n * @private {ResizeObserverController}\r\n */\r\n ResizeObserverController.instance_ = null;\r\n return ResizeObserverController;\r\n}());\n\n/**\r\n * Defines non-writable/enumerable properties of the provided target object.\r\n *\r\n * @param {Object} target - Object for which to define properties.\r\n * @param {Object} props - Properties to be defined.\r\n * @returns {Object} Target object.\r\n */\r\nvar defineConfigurable = (function (target, props) {\r\n for (var _i = 0, _a = Object.keys(props); _i < _a.length; _i++) {\r\n var key = _a[_i];\r\n Object.defineProperty(target, key, {\r\n value: props[key],\r\n enumerable: false,\r\n writable: false,\r\n configurable: true\r\n });\r\n }\r\n return target;\r\n});\n\n/**\r\n * Returns the global object associated with provided element.\r\n *\r\n * @param {Object} target\r\n * @returns {Object}\r\n */\r\nvar getWindowOf = (function (target) {\r\n // Assume that the element is an instance of Node, which means that it\r\n // has the \"ownerDocument\" property from which we can retrieve a\r\n // corresponding global object.\r\n var ownerGlobal = target && target.ownerDocument && target.ownerDocument.defaultView;\r\n // Return the local global object if it's not possible extract one from\r\n // provided element.\r\n return ownerGlobal || global$1;\r\n});\n\n// Placeholder of an empty content rectangle.\r\nvar emptyRect = createRectInit(0, 0, 0, 0);\r\n/**\r\n * Converts provided string to a number.\r\n *\r\n * @param {number|string} value\r\n * @returns {number}\r\n */\r\nfunction toFloat(value) {\r\n return parseFloat(value) || 0;\r\n}\r\n/**\r\n * Extracts borders size from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @param {...string} positions - Borders positions (top, right, ...)\r\n * @returns {number}\r\n */\r\nfunction getBordersSize(styles) {\r\n var positions = [];\r\n for (var _i = 1; _i < arguments.length; _i++) {\r\n positions[_i - 1] = arguments[_i];\r\n }\r\n return positions.reduce(function (size, position) {\r\n var value = styles['border-' + position + '-width'];\r\n return size + toFloat(value);\r\n }, 0);\r\n}\r\n/**\r\n * Extracts paddings sizes from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @returns {Object} Paddings box.\r\n */\r\nfunction getPaddings(styles) {\r\n var positions = ['top', 'right', 'bottom', 'left'];\r\n var paddings = {};\r\n for (var _i = 0, positions_1 = positions; _i < positions_1.length; _i++) {\r\n var position = positions_1[_i];\r\n var value = styles['padding-' + position];\r\n paddings[position] = toFloat(value);\r\n }\r\n return paddings;\r\n}\r\n/**\r\n * Calculates content rectangle of provided SVG element.\r\n *\r\n * @param {SVGGraphicsElement} target - Element content rectangle of which needs\r\n * to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getSVGContentRect(target) {\r\n var bbox = target.getBBox();\r\n return createRectInit(0, 0, bbox.width, bbox.height);\r\n}\r\n/**\r\n * Calculates content rectangle of provided HTMLElement.\r\n *\r\n * @param {HTMLElement} target - Element for which to calculate the content rectangle.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getHTMLElementContentRect(target) {\r\n // Client width & height properties can't be\r\n // used exclusively as they provide rounded values.\r\n var clientWidth = target.clientWidth, clientHeight = target.clientHeight;\r\n // By this condition we can catch all non-replaced inline, hidden and\r\n // detached elements. Though elements with width & height properties less\r\n // than 0.5 will be discarded as well.\r\n //\r\n // Without it we would need to implement separate methods for each of\r\n // those cases and it's not possible to perform a precise and performance\r\n // effective test for hidden elements. E.g. even jQuery's ':visible' filter\r\n // gives wrong results for elements with width & height less than 0.5.\r\n if (!clientWidth && !clientHeight) {\r\n return emptyRect;\r\n }\r\n var styles = getWindowOf(target).getComputedStyle(target);\r\n var paddings = getPaddings(styles);\r\n var horizPad = paddings.left + paddings.right;\r\n var vertPad = paddings.top + paddings.bottom;\r\n // Computed styles of width & height are being used because they are the\r\n // only dimensions available to JS that contain non-rounded values. It could\r\n // be possible to utilize the getBoundingClientRect if only it's data wasn't\r\n // affected by CSS transformations let alone paddings, borders and scroll bars.\r\n var width = toFloat(styles.width), height = toFloat(styles.height);\r\n // Width & height include paddings and borders when the 'border-box' box\r\n // model is applied (except for IE).\r\n if (styles.boxSizing === 'border-box') {\r\n // Following conditions are required to handle Internet Explorer which\r\n // doesn't include paddings and borders to computed CSS dimensions.\r\n //\r\n // We can say that if CSS dimensions + paddings are equal to the \"client\"\r\n // properties then it's either IE, and thus we don't need to subtract\r\n // anything, or an element merely doesn't have paddings/borders styles.\r\n if (Math.round(width + horizPad) !== clientWidth) {\r\n width -= getBordersSize(styles, 'left', 'right') + horizPad;\r\n }\r\n if (Math.round(height + vertPad) !== clientHeight) {\r\n height -= getBordersSize(styles, 'top', 'bottom') + vertPad;\r\n }\r\n }\r\n // Following steps can't be applied to the document's root element as its\r\n // client[Width/Height] properties represent viewport area of the window.\r\n // Besides, it's as well not necessary as the itself neither has\r\n // rendered scroll bars nor it can be clipped.\r\n if (!isDocumentElement(target)) {\r\n // In some browsers (only in Firefox, actually) CSS width & height\r\n // include scroll bars size which can be removed at this step as scroll\r\n // bars are the only difference between rounded dimensions + paddings\r\n // and \"client\" properties, though that is not always true in Chrome.\r\n var vertScrollbar = Math.round(width + horizPad) - clientWidth;\r\n var horizScrollbar = Math.round(height + vertPad) - clientHeight;\r\n // Chrome has a rather weird rounding of \"client\" properties.\r\n // E.g. for an element with content width of 314.2px it sometimes gives\r\n // the client width of 315px and for the width of 314.7px it may give\r\n // 314px. And it doesn't happen all the time. So just ignore this delta\r\n // as a non-relevant.\r\n if (Math.abs(vertScrollbar) !== 1) {\r\n width -= vertScrollbar;\r\n }\r\n if (Math.abs(horizScrollbar) !== 1) {\r\n height -= horizScrollbar;\r\n }\r\n }\r\n return createRectInit(paddings.left, paddings.top, width, height);\r\n}\r\n/**\r\n * Checks whether provided element is an instance of the SVGGraphicsElement.\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nvar isSVGGraphicsElement = (function () {\r\n // Some browsers, namely IE and Edge, don't have the SVGGraphicsElement\r\n // interface.\r\n if (typeof SVGGraphicsElement !== 'undefined') {\r\n return function (target) { return target instanceof getWindowOf(target).SVGGraphicsElement; };\r\n }\r\n // If it's so, then check that element is at least an instance of the\r\n // SVGElement and that it has the \"getBBox\" method.\r\n // eslint-disable-next-line no-extra-parens\r\n return function (target) { return (target instanceof getWindowOf(target).SVGElement &&\r\n typeof target.getBBox === 'function'); };\r\n})();\r\n/**\r\n * Checks whether provided element is a document element ().\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nfunction isDocumentElement(target) {\r\n return target === getWindowOf(target).document.documentElement;\r\n}\r\n/**\r\n * Calculates an appropriate content rectangle for provided html or svg element.\r\n *\r\n * @param {Element} target - Element content rectangle of which needs to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getContentRect(target) {\r\n if (!isBrowser) {\r\n return emptyRect;\r\n }\r\n if (isSVGGraphicsElement(target)) {\r\n return getSVGContentRect(target);\r\n }\r\n return getHTMLElementContentRect(target);\r\n}\r\n/**\r\n * Creates rectangle with an interface of the DOMRectReadOnly.\r\n * Spec: https://drafts.fxtf.org/geometry/#domrectreadonly\r\n *\r\n * @param {DOMRectInit} rectInit - Object with rectangle's x/y coordinates and dimensions.\r\n * @returns {DOMRectReadOnly}\r\n */\r\nfunction createReadOnlyRect(_a) {\r\n var x = _a.x, y = _a.y, width = _a.width, height = _a.height;\r\n // If DOMRectReadOnly is available use it as a prototype for the rectangle.\r\n var Constr = typeof DOMRectReadOnly !== 'undefined' ? DOMRectReadOnly : Object;\r\n var rect = Object.create(Constr.prototype);\r\n // Rectangle's properties are not writable and non-enumerable.\r\n defineConfigurable(rect, {\r\n x: x, y: y, width: width, height: height,\r\n top: y,\r\n right: x + width,\r\n bottom: height + y,\r\n left: x\r\n });\r\n return rect;\r\n}\r\n/**\r\n * Creates DOMRectInit object based on the provided dimensions and the x/y coordinates.\r\n * Spec: https://drafts.fxtf.org/geometry/#dictdef-domrectinit\r\n *\r\n * @param {number} x - X coordinate.\r\n * @param {number} y - Y coordinate.\r\n * @param {number} width - Rectangle's width.\r\n * @param {number} height - Rectangle's height.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction createRectInit(x, y, width, height) {\r\n return { x: x, y: y, width: width, height: height };\r\n}\n\n/**\r\n * Class that is responsible for computations of the content rectangle of\r\n * provided DOM element and for keeping track of it's changes.\r\n */\r\nvar ResizeObservation = /** @class */ (function () {\r\n /**\r\n * Creates an instance of ResizeObservation.\r\n *\r\n * @param {Element} target - Element to be observed.\r\n */\r\n function ResizeObservation(target) {\r\n /**\r\n * Broadcasted width of content rectangle.\r\n *\r\n * @type {number}\r\n */\r\n this.broadcastWidth = 0;\r\n /**\r\n * Broadcasted height of content rectangle.\r\n *\r\n * @type {number}\r\n */\r\n this.broadcastHeight = 0;\r\n /**\r\n * Reference to the last observed content rectangle.\r\n *\r\n * @private {DOMRectInit}\r\n */\r\n this.contentRect_ = createRectInit(0, 0, 0, 0);\r\n this.target = target;\r\n }\r\n /**\r\n * Updates content rectangle and tells whether it's width or height properties\r\n * have changed since the last broadcast.\r\n *\r\n * @returns {boolean}\r\n */\r\n ResizeObservation.prototype.isActive = function () {\r\n var rect = getContentRect(this.target);\r\n this.contentRect_ = rect;\r\n return (rect.width !== this.broadcastWidth ||\r\n rect.height !== this.broadcastHeight);\r\n };\r\n /**\r\n * Updates 'broadcastWidth' and 'broadcastHeight' properties with a data\r\n * from the corresponding properties of the last observed content rectangle.\r\n *\r\n * @returns {DOMRectInit} Last observed content rectangle.\r\n */\r\n ResizeObservation.prototype.broadcastRect = function () {\r\n var rect = this.contentRect_;\r\n this.broadcastWidth = rect.width;\r\n this.broadcastHeight = rect.height;\r\n return rect;\r\n };\r\n return ResizeObservation;\r\n}());\n\nvar ResizeObserverEntry = /** @class */ (function () {\r\n /**\r\n * Creates an instance of ResizeObserverEntry.\r\n *\r\n * @param {Element} target - Element that is being observed.\r\n * @param {DOMRectInit} rectInit - Data of the element's content rectangle.\r\n */\r\n function ResizeObserverEntry(target, rectInit) {\r\n var contentRect = createReadOnlyRect(rectInit);\r\n // According to the specification following properties are not writable\r\n // and are also not enumerable in the native implementation.\r\n //\r\n // Property accessors are not being used as they'd require to define a\r\n // private WeakMap storage which may cause memory leaks in browsers that\r\n // don't support this type of collections.\r\n defineConfigurable(this, { target: target, contentRect: contentRect });\r\n }\r\n return ResizeObserverEntry;\r\n}());\n\nvar ResizeObserverSPI = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserver.\r\n *\r\n * @param {ResizeObserverCallback} callback - Callback function that is invoked\r\n * when one of the observed elements changes it's content dimensions.\r\n * @param {ResizeObserverController} controller - Controller instance which\r\n * is responsible for the updates of observer.\r\n * @param {ResizeObserver} callbackCtx - Reference to the public\r\n * ResizeObserver instance which will be passed to callback function.\r\n */\r\n function ResizeObserverSPI(callback, controller, callbackCtx) {\r\n /**\r\n * Collection of resize observations that have detected changes in dimensions\r\n * of elements.\r\n *\r\n * @private {Array}\r\n */\r\n this.activeObservations_ = [];\r\n /**\r\n * Registry of the ResizeObservation instances.\r\n *\r\n * @private {Map}\r\n */\r\n this.observations_ = new MapShim();\r\n if (typeof callback !== 'function') {\r\n throw new TypeError('The callback provided as parameter 1 is not a function.');\r\n }\r\n this.callback_ = callback;\r\n this.controller_ = controller;\r\n this.callbackCtx_ = callbackCtx;\r\n }\r\n /**\r\n * Starts observing provided element.\r\n *\r\n * @param {Element} target - Element to be observed.\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.observe = function (target) {\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n // Do nothing if current environment doesn't have the Element interface.\r\n if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n return;\r\n }\r\n if (!(target instanceof getWindowOf(target).Element)) {\r\n throw new TypeError('parameter 1 is not of type \"Element\".');\r\n }\r\n var observations = this.observations_;\r\n // Do nothing if element is already being observed.\r\n if (observations.has(target)) {\r\n return;\r\n }\r\n observations.set(target, new ResizeObservation(target));\r\n this.controller_.addObserver(this);\r\n // Force the update of observations.\r\n this.controller_.refresh();\r\n };\r\n /**\r\n * Stops observing provided element.\r\n *\r\n * @param {Element} target - Element to stop observing.\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.unobserve = function (target) {\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n // Do nothing if current environment doesn't have the Element interface.\r\n if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n return;\r\n }\r\n if (!(target instanceof getWindowOf(target).Element)) {\r\n throw new TypeError('parameter 1 is not of type \"Element\".');\r\n }\r\n var observations = this.observations_;\r\n // Do nothing if element is not being observed.\r\n if (!observations.has(target)) {\r\n return;\r\n }\r\n observations.delete(target);\r\n if (!observations.size) {\r\n this.controller_.removeObserver(this);\r\n }\r\n };\r\n /**\r\n * Stops observing all elements.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.disconnect = function () {\r\n this.clearActive();\r\n this.observations_.clear();\r\n this.controller_.removeObserver(this);\r\n };\r\n /**\r\n * Collects observation instances the associated element of which has changed\r\n * it's content rectangle.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.gatherActive = function () {\r\n var _this = this;\r\n this.clearActive();\r\n this.observations_.forEach(function (observation) {\r\n if (observation.isActive()) {\r\n _this.activeObservations_.push(observation);\r\n }\r\n });\r\n };\r\n /**\r\n * Invokes initial callback function with a list of ResizeObserverEntry\r\n * instances collected from active resize observations.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.broadcastActive = function () {\r\n // Do nothing if observer doesn't have active observations.\r\n if (!this.hasActive()) {\r\n return;\r\n }\r\n var ctx = this.callbackCtx_;\r\n // Create ResizeObserverEntry instance for every active observation.\r\n var entries = this.activeObservations_.map(function (observation) {\r\n return new ResizeObserverEntry(observation.target, observation.broadcastRect());\r\n });\r\n this.callback_.call(ctx, entries, ctx);\r\n this.clearActive();\r\n };\r\n /**\r\n * Clears the collection of active observations.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.clearActive = function () {\r\n this.activeObservations_.splice(0);\r\n };\r\n /**\r\n * Tells whether observer has active observations.\r\n *\r\n * @returns {boolean}\r\n */\r\n ResizeObserverSPI.prototype.hasActive = function () {\r\n return this.activeObservations_.length > 0;\r\n };\r\n return ResizeObserverSPI;\r\n}());\n\n// Registry of internal observers. If WeakMap is not available use current shim\r\n// for the Map collection as it has all required methods and because WeakMap\r\n// can't be fully polyfilled anyway.\r\nvar observers = typeof WeakMap !== 'undefined' ? new WeakMap() : new MapShim();\r\n/**\r\n * ResizeObserver API. Encapsulates the ResizeObserver SPI implementation\r\n * exposing only those methods and properties that are defined in the spec.\r\n */\r\nvar ResizeObserver = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserver.\r\n *\r\n * @param {ResizeObserverCallback} callback - Callback that is invoked when\r\n * dimensions of the observed elements change.\r\n */\r\n function ResizeObserver(callback) {\r\n if (!(this instanceof ResizeObserver)) {\r\n throw new TypeError('Cannot call a class as a function.');\r\n }\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n var controller = ResizeObserverController.getInstance();\r\n var observer = new ResizeObserverSPI(callback, controller, this);\r\n observers.set(this, observer);\r\n }\r\n return ResizeObserver;\r\n}());\r\n// Expose public methods of ResizeObserver.\r\n[\r\n 'observe',\r\n 'unobserve',\r\n 'disconnect'\r\n].forEach(function (method) {\r\n ResizeObserver.prototype[method] = function () {\r\n var _a;\r\n return (_a = observers.get(this))[method].apply(_a, arguments);\r\n };\r\n});\n\nvar index = (function () {\r\n // Export existing implementation if available.\r\n if (typeof global$1.ResizeObserver !== 'undefined') {\r\n return global$1.ResizeObserver;\r\n }\r\n return ResizeObserver;\r\n})();\n\nexport default index;\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport ResizeObserver from \"resize-observer-polyfill\"\nimport {\n NEVER,\n Observable,\n Subject,\n defer,\n filter,\n finalize,\n map,\n merge,\n of,\n shareReplay,\n startWith,\n switchMap,\n tap\n} from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementSize {\n width: number /* Element width */\n height: number /* Element height */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Resize observer entry subject\n */\nconst entry$ = new Subject()\n\n/**\n * Resize observer observable\n *\n * This observable will create a `ResizeObserver` on the first subscription\n * and will automatically terminate it when there are no more subscribers.\n * It's quite important to centralize observation in a single `ResizeObserver`,\n * as the performance difference can be quite dramatic, as the link shows.\n *\n * @see https://bit.ly/3iIYfEm - Google Groups on performance\n */\nconst observer$ = defer(() => of(\n new ResizeObserver(entries => {\n for (const entry of entries)\n entry$.next(entry)\n })\n))\n .pipe(\n switchMap(observer => merge(NEVER, of(observer))\n .pipe(\n finalize(() => observer.disconnect())\n )\n ),\n shareReplay(1)\n )\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element size\n *\n * @param el - Element\n *\n * @returns Element size\n */\nexport function getElementSize(\n el: HTMLElement\n): ElementSize {\n return {\n width: el.offsetWidth,\n height: el.offsetHeight\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element size\n *\n * This function returns an observable that subscribes to a single internal\n * instance of `ResizeObserver` upon subscription, and emit resize events until\n * termination. Note that this function should not be called with the same\n * element twice, as the first unsubscription will terminate observation.\n *\n * Sadly, we can't use the `DOMRect` objects returned by the observer, because\n * we need the emitted values to be consistent with `getElementSize`, which will\n * return the used values (rounded) and not actual values (unrounded). Thus, we\n * use the `offset*` properties. See the linked GitHub issue.\n *\n * @see https://bit.ly/3m0k3he - GitHub issue\n *\n * @param el - Element\n *\n * @returns Element size observable\n */\nexport function watchElementSize(\n el: HTMLElement\n): Observable {\n return observer$\n .pipe(\n tap(observer => observer.observe(el)),\n switchMap(observer => entry$\n .pipe(\n filter(({ target }) => target === el),\n finalize(() => observer.unobserve(el)),\n map(() => getElementSize(el))\n )\n ),\n startWith(getElementSize(el))\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ElementSize } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element content size (= scroll width and height)\n *\n * @param el - Element\n *\n * @returns Element content size\n */\nexport function getElementContentSize(\n el: HTMLElement\n): ElementSize {\n return {\n width: el.scrollWidth,\n height: el.scrollHeight\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n NEVER,\n Observable,\n Subject,\n defer,\n distinctUntilChanged,\n filter,\n finalize,\n map,\n merge,\n of,\n shareReplay,\n switchMap,\n tap\n} from \"rxjs\"\n\nimport {\n getElementContentSize,\n getElementSize,\n watchElementContentOffset\n} from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Intersection observer entry subject\n */\nconst entry$ = new Subject()\n\n/**\n * Intersection observer observable\n *\n * This observable will create an `IntersectionObserver` on first subscription\n * and will automatically terminate it when there are no more subscribers.\n *\n * @see https://bit.ly/3iIYfEm - Google Groups on performance\n */\nconst observer$ = defer(() => of(\n new IntersectionObserver(entries => {\n for (const entry of entries)\n entry$.next(entry)\n }, {\n threshold: 0\n })\n))\n .pipe(\n switchMap(observer => merge(NEVER, of(observer))\n .pipe(\n finalize(() => observer.disconnect())\n )\n ),\n shareReplay(1)\n )\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch element visibility\n *\n * @param el - Element\n *\n * @returns Element visibility observable\n */\nexport function watchElementVisibility(\n el: HTMLElement\n): Observable {\n return observer$\n .pipe(\n tap(observer => observer.observe(el)),\n switchMap(observer => entry$\n .pipe(\n filter(({ target }) => target === el),\n finalize(() => observer.unobserve(el)),\n map(({ isIntersecting }) => isIntersecting)\n )\n )\n )\n}\n\n/**\n * Watch element boundary\n *\n * This function returns an observable which emits whether the bottom content\n * boundary (= scroll offset) of an element is within a certain threshold.\n *\n * @param el - Element\n * @param threshold - Threshold\n *\n * @returns Element boundary observable\n */\nexport function watchElementBoundary(\n el: HTMLElement, threshold = 16\n): Observable {\n return watchElementContentOffset(el)\n .pipe(\n map(({ y }) => {\n const visible = getElementSize(el)\n const content = getElementContentSize(el)\n return y >= (\n content.height - visible.height - threshold\n )\n }),\n distinctUntilChanged()\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n fromEvent,\n map,\n startWith\n} from \"rxjs\"\n\nimport { getElement } from \"../element\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle\n */\nexport type Toggle =\n | \"drawer\" /* Toggle for drawer */\n | \"search\" /* Toggle for search */\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle map\n */\nconst toggles: Record = {\n drawer: getElement(\"[data-md-toggle=drawer]\"),\n search: getElement(\"[data-md-toggle=search]\")\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve the value of a toggle\n *\n * @param name - Toggle\n *\n * @returns Toggle value\n */\nexport function getToggle(name: Toggle): boolean {\n return toggles[name].checked\n}\n\n/**\n * Set toggle\n *\n * Simulating a click event seems to be the most cross-browser compatible way\n * of changing the value while also emitting a `change` event. Before, Material\n * used `CustomEvent` to programmatically change the value of a toggle, but this\n * is a much simpler and cleaner solution which doesn't require a polyfill.\n *\n * @param name - Toggle\n * @param value - Toggle value\n */\nexport function setToggle(name: Toggle, value: boolean): void {\n if (toggles[name].checked !== value)\n toggles[name].click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch toggle\n *\n * @param name - Toggle\n *\n * @returns Toggle value observable\n */\nexport function watchToggle(name: Toggle): Observable {\n const el = toggles[name]\n return fromEvent(el, \"change\")\n .pipe(\n map(() => el.checked),\n startWith(el.checked)\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n filter,\n fromEvent,\n map,\n share\n} from \"rxjs\"\n\nimport { getActiveElement } from \"../element\"\nimport { getToggle } from \"../toggle\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Keyboard mode\n */\nexport type KeyboardMode =\n | \"global\" /* Global */\n | \"search\" /* Search is open */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Keyboard\n */\nexport interface Keyboard {\n mode: KeyboardMode /* Keyboard mode */\n type: string /* Key type */\n claim(): void /* Key claim */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether an element may receive keyboard input\n *\n * @param el - Element\n * @param type - Key type\n *\n * @returns Test result\n */\nfunction isSusceptibleToKeyboard(\n el: HTMLElement, type: string\n): boolean {\n switch (el.constructor) {\n\n /* Input elements */\n case HTMLInputElement:\n /* @ts-expect-error - omit unnecessary type cast */\n if (el.type === \"radio\")\n return /^Arrow/.test(type)\n else\n return true\n\n /* Select element and textarea */\n case HTMLSelectElement:\n case HTMLTextAreaElement:\n return true\n\n /* Everything else */\n default:\n return el.isContentEditable\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch keyboard\n *\n * @returns Keyboard observable\n */\nexport function watchKeyboard(): Observable {\n return fromEvent(window, \"keydown\")\n .pipe(\n filter(ev => !(ev.metaKey || ev.ctrlKey)),\n map(ev => ({\n mode: getToggle(\"search\") ? \"search\" : \"global\",\n type: ev.key,\n claim() {\n ev.preventDefault()\n ev.stopPropagation()\n }\n } as Keyboard)),\n filter(({ mode, type }) => {\n if (mode === \"global\") {\n const active = getActiveElement()\n if (typeof active !== \"undefined\")\n return !isSusceptibleToKeyboard(active, type)\n }\n return true\n }),\n share()\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Subject } from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location\n *\n * This function returns a `URL` object (and not `Location`) to normalize the\n * typings across the application. Furthermore, locations need to be tracked\n * without setting them and `Location` is a singleton which represents the\n * current location.\n *\n * @returns URL\n */\nexport function getLocation(): URL {\n return new URL(location.href)\n}\n\n/**\n * Set location\n *\n * @param url - URL to change to\n */\nexport function setLocation(url: URL): void {\n location.href = url.href\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location\n *\n * @returns Location subject\n */\nexport function watchLocation(): Subject {\n return new Subject()\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { JSX as JSXInternal } from \"preact\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * HTML attributes\n */\ntype Attributes =\n & JSXInternal.HTMLAttributes\n & JSXInternal.SVGAttributes\n & Record\n\n/**\n * Child element\n */\ntype Child =\n | HTMLElement\n | Text\n | string\n | number\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Append a child node to an element\n *\n * @param el - Element\n * @param child - Child node(s)\n */\nfunction appendChild(el: HTMLElement, child: Child | Child[]): void {\n\n /* Handle primitive types (including raw HTML) */\n if (typeof child === \"string\" || typeof child === \"number\") {\n el.innerHTML += child.toString()\n\n /* Handle nodes */\n } else if (child instanceof Node) {\n el.appendChild(child)\n\n /* Handle nested children */\n } else if (Array.isArray(child)) {\n for (const node of child)\n appendChild(el, node)\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * JSX factory\n *\n * @template T - Element type\n *\n * @param tag - HTML tag\n * @param attributes - HTML attributes\n * @param children - Child elements\n *\n * @returns Element\n */\nexport function h(\n tag: T, attributes?: Attributes | null, ...children: Child[]\n): HTMLElementTagNameMap[T]\n\nexport function h(\n tag: string, attributes?: Attributes | null, ...children: Child[]\n): T\n\nexport function h(\n tag: string, attributes?: Attributes | null, ...children: Child[]\n): T {\n const el = document.createElement(tag)\n\n /* Set attributes, if any */\n if (attributes)\n for (const attr of Object.keys(attributes)) {\n if (typeof attributes[attr] === \"undefined\")\n continue\n\n /* Set default attribute or boolean */\n if (typeof attributes[attr] !== \"boolean\")\n el.setAttribute(attr, attributes[attr])\n else\n el.setAttribute(attr, \"\")\n }\n\n /* Append child nodes */\n for (const child of children)\n appendChild(el, child)\n\n /* Return element */\n return el as T\n}\n\n/* ----------------------------------------------------------------------------\n * Namespace\n * ------------------------------------------------------------------------- */\n\nexport declare namespace h {\n namespace JSX {\n type Element = HTMLElement\n type IntrinsicElements = JSXInternal.IntrinsicElements\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Truncate a string after the given number of characters\n *\n * This is not a very reasonable approach, since the summaries kind of suck.\n * It would be better to create something more intelligent, highlighting the\n * search occurrences and making a better summary out of it, but this note was\n * written three years ago, so who knows if we'll ever fix it.\n *\n * @param value - Value to be truncated\n * @param n - Number of characters\n *\n * @returns Truncated value\n */\nexport function truncate(value: string, n: number): string {\n let i = n\n if (value.length > i) {\n while (value[i] !== \" \" && --i > 0) { /* keep eating */ }\n return `${value.substring(0, i)}...`\n }\n return value\n}\n\n/**\n * Round a number for display with repository facts\n *\n * This is a reverse-engineered version of GitHub's weird rounding algorithm\n * for stars, forks and all other numbers. While all numbers below `1,000` are\n * returned as-is, bigger numbers are converted to fixed numbers:\n *\n * - `1,049` => `1k`\n * - `1,050` => `1.1k`\n * - `1,949` => `1.9k`\n * - `1,950` => `2k`\n *\n * @param value - Original value\n *\n * @returns Rounded value\n */\nexport function round(value: number): string {\n if (value > 999) {\n const digits = +((value - 950) % 1000 > 99)\n return `${((value + 0.000001) / 1000).toFixed(digits)}k`\n } else {\n return value.toString()\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n filter,\n fromEvent,\n map,\n shareReplay,\n startWith\n} from \"rxjs\"\n\nimport { getOptionalElement } from \"~/browser\"\nimport { h } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location hash\n *\n * @returns Location hash\n */\nexport function getLocationHash(): string {\n return location.hash.substring(1)\n}\n\n/**\n * Set location hash\n *\n * Setting a new fragment identifier via `location.hash` will have no effect\n * if the value doesn't change. When a new fragment identifier is set, we want\n * the browser to target the respective element at all times, which is why we\n * use this dirty little trick.\n *\n * @param hash - Location hash\n */\nexport function setLocationHash(hash: string): void {\n const el = h(\"a\", { href: hash })\n el.addEventListener(\"click\", ev => ev.stopPropagation())\n el.click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location hash\n *\n * @returns Location hash observable\n */\nexport function watchLocationHash(): Observable {\n return fromEvent(window, \"hashchange\")\n .pipe(\n map(getLocationHash),\n startWith(getLocationHash()),\n filter(hash => hash.length > 0),\n shareReplay(1)\n )\n}\n\n/**\n * Watch location target\n *\n * @returns Location target observable\n */\nexport function watchLocationTarget(): Observable {\n return watchLocationHash()\n .pipe(\n map(id => getOptionalElement(`[id=\"${id}\"]`)!),\n filter(el => typeof el !== \"undefined\")\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n EMPTY,\n Observable,\n fromEvent,\n fromEventPattern,\n map,\n merge,\n startWith,\n switchMap\n} from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch media query\n *\n * Note that although `MediaQueryList.addListener` is deprecated we have to\n * use it, because it's the only way to ensure proper downward compatibility.\n *\n * @see https://bit.ly/3dUBH2m - GitHub issue\n *\n * @param query - Media query\n *\n * @returns Media observable\n */\nexport function watchMedia(query: string): Observable {\n const media = matchMedia(query)\n return fromEventPattern(next => (\n media.addListener(() => next(media.matches))\n ))\n .pipe(\n startWith(media.matches)\n )\n}\n\n/**\n * Watch print mode\n *\n * @returns Print observable\n */\nexport function watchPrint(): Observable {\n const media = matchMedia(\"print\")\n return merge(\n fromEvent(window, \"beforeprint\").pipe(map(() => true)),\n fromEvent(window, \"afterprint\").pipe(map(() => false))\n )\n .pipe(\n startWith(media.matches)\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Toggle an observable with a media observable\n *\n * @template T - Data type\n *\n * @param query$ - Media observable\n * @param factory - Observable factory\n *\n * @returns Toggled observable\n */\nexport function at(\n query$: Observable, factory: () => Observable\n): Observable {\n return query$\n .pipe(\n switchMap(active => active ? factory() : EMPTY)\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n EMPTY,\n Observable,\n catchError,\n from,\n map,\n of,\n shareReplay,\n switchMap,\n throwError\n} from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch the given URL\n *\n * If the request fails (e.g. when dispatched from `file://` locations), the\n * observable will complete without emitting a value.\n *\n * @param url - Request URL\n * @param options - Options\n *\n * @returns Response observable\n */\nexport function request(\n url: URL | string, options: RequestInit = { credentials: \"same-origin\" }\n): Observable {\n return from(fetch(`${url}`, options))\n .pipe(\n catchError(() => EMPTY),\n switchMap(res => res.status !== 200\n ? throwError(() => new Error(res.statusText))\n : of(res)\n )\n )\n}\n\n/**\n * Fetch JSON from the given URL\n *\n * @template T - Data type\n *\n * @param url - Request URL\n * @param options - Options\n *\n * @returns Data observable\n */\nexport function requestJSON(\n url: URL | string, options?: RequestInit\n): Observable {\n return request(url, options)\n .pipe(\n switchMap(res => res.json()),\n shareReplay(1)\n )\n}\n\n/**\n * Fetch XML from the given URL\n *\n * @param url - Request URL\n * @param options - Options\n *\n * @returns Data observable\n */\nexport function requestXML(\n url: URL | string, options?: RequestInit\n): Observable {\n const dom = new DOMParser()\n return request(url, options)\n .pipe(\n switchMap(res => res.text()),\n map(res => dom.parseFromString(res, \"text/xml\")),\n shareReplay(1)\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n defer,\n finalize,\n fromEvent,\n map,\n merge,\n switchMap,\n take,\n throwError\n} from \"rxjs\"\n\nimport { h } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create and load a `script` element\n *\n * This function returns an observable that will emit when the script was\n * successfully loaded, or throw an error if it didn't.\n *\n * @param src - Script URL\n *\n * @returns Script observable\n */\nexport function watchScript(src: string): Observable {\n const script = h(\"script\", { src })\n return defer(() => {\n document.head.appendChild(script)\n return merge(\n fromEvent(script, \"load\"),\n fromEvent(script, \"error\")\n .pipe(\n switchMap(() => (\n throwError(() => new ReferenceError(`Invalid script: ${src}`))\n ))\n )\n )\n .pipe(\n map(() => undefined),\n finalize(() => document.head.removeChild(script)),\n take(1)\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n fromEvent,\n map,\n merge,\n startWith\n} from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport offset\n */\nexport interface ViewportOffset {\n x: number /* Horizontal offset */\n y: number /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport offset\n *\n * On iOS Safari, viewport offset can be negative due to overflow scrolling.\n * As this may induce strange behaviors downstream, we'll just limit it to 0.\n *\n * @returns Viewport offset\n */\nexport function getViewportOffset(): ViewportOffset {\n return {\n x: Math.max(0, scrollX),\n y: Math.max(0, scrollY)\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport offset\n *\n * @returns Viewport offset observable\n */\nexport function watchViewportOffset(): Observable {\n return merge(\n fromEvent(window, \"scroll\", { passive: true }),\n fromEvent(window, \"resize\", { passive: true })\n )\n .pipe(\n map(getViewportOffset),\n startWith(getViewportOffset())\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n fromEvent,\n map,\n startWith\n} from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport size\n */\nexport interface ViewportSize {\n width: number /* Viewport width */\n height: number /* Viewport height */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport size\n *\n * @returns Viewport size\n */\nexport function getViewportSize(): ViewportSize {\n return {\n width: innerWidth,\n height: innerHeight\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport size\n *\n * @returns Viewport size observable\n */\nexport function watchViewportSize(): Observable {\n return fromEvent(window, \"resize\", { passive: true })\n .pipe(\n map(getViewportSize),\n startWith(getViewportSize())\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n combineLatest,\n map,\n shareReplay\n} from \"rxjs\"\n\nimport {\n ViewportOffset,\n watchViewportOffset\n} from \"../offset\"\nimport {\n ViewportSize,\n watchViewportSize\n} from \"../size\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport\n */\nexport interface Viewport {\n offset: ViewportOffset /* Viewport offset */\n size: ViewportSize /* Viewport size */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport\n *\n * @returns Viewport observable\n */\nexport function watchViewport(): Observable {\n return combineLatest([\n watchViewportOffset(),\n watchViewportSize()\n ])\n .pipe(\n map(([offset, size]) => ({ offset, size })),\n shareReplay(1)\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n combineLatest,\n distinctUntilKeyChanged,\n map\n} from \"rxjs\"\n\nimport { Header } from \"~/components\"\n\nimport { getElementOffset } from \"../../element\"\nimport { Viewport } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
/* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport relative to element\n *\n * @param el - Element\n * @param options - Options\n *\n * @returns Viewport observable\n */\nexport function watchViewportAt(\n el: HTMLElement, { viewport$, header$ }: WatchOptions\n): Observable {\n const size$ = viewport$\n .pipe(\n distinctUntilKeyChanged(\"size\")\n )\n\n /* Compute element offset */\n const offset$ = combineLatest([size$, header$])\n .pipe(\n map(() => getElementOffset(el))\n )\n\n /* Compute relative viewport, return hot observable */\n return combineLatest([header$, viewport$, offset$])\n .pipe(\n map(([{ height }, { offset, size }, { x, y }]) => ({\n offset: {\n x: offset.x - x,\n y: offset.y - y + height\n },\n size\n }))\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n fromEvent,\n map,\n share,\n switchMap,\n tap,\n throttle\n} from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Worker message\n */\nexport interface WorkerMessage {\n type: unknown /* Message type */\n data?: unknown /* Message data */\n}\n\n/**\n * Worker handler\n *\n * @template T - Message type\n */\nexport interface WorkerHandler<\n T extends WorkerMessage\n> {\n tx$: Subject /* Message transmission subject */\n rx$: Observable /* Message receive observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n *\n * @template T - Worker message type\n */\ninterface WatchOptions {\n tx$: Observable /* Message transmission observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch a web worker\n *\n * This function returns an observable that sends all values emitted by the\n * message observable to the web worker. Web worker communication is expected\n * to be bidirectional (request-response) and synchronous. Messages that are\n * emitted during a pending request are throttled, the last one is emitted.\n *\n * @param worker - Web worker\n * @param options - Options\n *\n * @returns Worker message observable\n */\nexport function watchWorker(\n worker: Worker, { tx$ }: WatchOptions\n): Observable {\n\n /* Intercept messages from worker-like objects */\n const rx$ = fromEvent(worker, \"message\")\n .pipe(\n map(({ data }) => data as T)\n )\n\n /* Send and receive messages, return hot observable */\n return tx$\n .pipe(\n throttle(() => rx$, { leading: true, trailing: true }),\n tap(message => worker.postMessage(message)),\n switchMap(() => rx$),\n share()\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { getElement, getLocation } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Feature flag\n */\nexport type Flag =\n | \"content.code.annotate\" /* Code annotations */\n | \"content.tabs.link\" /* Link content tabs */\n | \"header.autohide\" /* Hide header */\n | \"navigation.expand\" /* Automatic expansion */\n | \"navigation.indexes\" /* Section pages */\n | \"navigation.instant\" /* Instant loading */\n | \"navigation.sections\" /* Section navigation */\n | \"navigation.tabs\" /* Tabs navigation */\n | \"navigation.tabs.sticky\" /* Tabs navigation (sticky) */\n | \"navigation.top\" /* Back-to-top button */\n | \"navigation.tracking\" /* Anchor tracking */\n | \"search.highlight\" /* Search highlighting */\n | \"search.share\" /* Search sharing */\n | \"search.suggest\" /* Search suggestions */\n | \"toc.integrate\" /* Integrated table of contents */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Translation\n */\nexport type Translation =\n | \"clipboard.copy\" /* Copy to clipboard */\n | \"clipboard.copied\" /* Copied to clipboard */\n | \"search.config.lang\" /* Search language */\n | \"search.config.pipeline\" /* Search pipeline */\n | \"search.config.separator\" /* Search separator */\n | \"search.placeholder\" /* Search */\n | \"search.result.placeholder\" /* Type to start searching */\n | \"search.result.none\" /* No matching documents */\n | \"search.result.one\" /* 1 matching document */\n | \"search.result.other\" /* # matching documents */\n | \"search.result.more.one\" /* 1 more on this page */\n | \"search.result.more.other\" /* # more on this page */\n | \"search.result.term.missing\" /* Missing */\n | \"select.version.title\" /* Version selector */\n\n/**\n * Translations\n */\nexport type Translations = Record\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Versioning\n */\nexport interface Versioning {\n provider: \"mike\" /* Version provider */\n default?: string /* Default version */\n}\n\n/**\n * Configuration\n */\nexport interface Config {\n base: string /* Base URL */\n features: Flag[] /* Feature flags */\n translations: Translations /* Translations */\n search: string /* Search worker URL */\n version?: Versioning /* Versioning */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve global configuration and make base URL absolute\n */\nconst script = getElement(\"#__config\")\nconst config: Config = JSON.parse(script.textContent!)\nconfig.base = `${new URL(config.base, getLocation())}`\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve global configuration\n *\n * @returns Global configuration\n */\nexport function configuration(): Config {\n return config\n}\n\n/**\n * Check whether a feature flag is enabled\n *\n * @param flag - Feature flag\n *\n * @returns Test result\n */\nexport function feature(flag: Flag): boolean {\n return config.features.includes(flag)\n}\n\n/**\n * Retrieve the translation for the given key\n *\n * @param key - Key to be translated\n * @param value - Positional value, if any\n *\n * @returns Translation\n */\nexport function translation(\n key: Translation, value?: string | number\n): string {\n return typeof value !== \"undefined\"\n ? config.translations[key].replace(\"#\", value.toString())\n : config.translations[key]\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { getElement, getElements } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Component type\n */\nexport type ComponentType =\n | \"announce\" /* Announcement bar */\n | \"container\" /* Container */\n | \"content\" /* Content */\n | \"dialog\" /* Dialog */\n | \"header\" /* Header */\n | \"header-title\" /* Header title */\n | \"header-topic\" /* Header topic */\n | \"main\" /* Main area */\n | \"outdated\" /* Version warning */\n | \"palette\" /* Color palette */\n | \"search\" /* Search */\n | \"search-query\" /* Search input */\n | \"search-result\" /* Search results */\n | \"search-share\" /* Search sharing */\n | \"search-suggest\" /* Search suggestions */\n | \"sidebar\" /* Sidebar */\n | \"skip\" /* Skip link */\n | \"source\" /* Repository information */\n | \"tabs\" /* Navigation tabs */\n | \"toc\" /* Table of contents */\n | \"top\" /* Back-to-top button */\n\n/**\n * Component\n *\n * @template T - Component type\n * @template U - Reference type\n */\nexport type Component<\n T extends {} = {},\n U extends HTMLElement = HTMLElement\n> =\n T & {\n ref: U /* Component reference */\n }\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Component type map\n */\ninterface ComponentTypeMap {\n \"announce\": HTMLElement /* Announcement bar */\n \"container\": HTMLElement /* Container */\n \"content\": HTMLElement /* Content */\n \"dialog\": HTMLElement /* Dialog */\n \"header\": HTMLElement /* Header */\n \"header-title\": HTMLElement /* Header title */\n \"header-topic\": HTMLElement /* Header topic */\n \"main\": HTMLElement /* Main area */\n \"outdated\": HTMLElement /* Version warning */\n \"palette\": HTMLElement /* Color palette */\n \"search\": HTMLElement /* Search */\n \"search-query\": HTMLInputElement /* Search input */\n \"search-result\": HTMLElement /* Search results */\n \"search-share\": HTMLAnchorElement /* Search sharing */\n \"search-suggest\": HTMLElement /* Search suggestions */\n \"sidebar\": HTMLElement /* Sidebar */\n \"skip\": HTMLAnchorElement /* Skip link */\n \"source\": HTMLAnchorElement /* Repository information */\n \"tabs\": HTMLElement /* Navigation tabs */\n \"toc\": HTMLElement /* Table of contents */\n \"top\": HTMLAnchorElement /* Back-to-top button */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve the element for a given component or throw a reference error\n *\n * @template T - Component type\n *\n * @param type - Component type\n * @param node - Node of reference\n *\n * @returns Element\n */\nexport function getComponentElement(\n type: T, node: ParentNode = document\n): ComponentTypeMap[T] {\n return getElement(`[data-md-component=${type}]`, node)\n}\n\n/**\n * Retrieve all elements for a given component\n *\n * @template T - Component type\n *\n * @param type - Component type\n * @param node - Node of reference\n *\n * @returns Elements\n */\nexport function getComponentElements(\n type: T, node: ParentNode = document\n): ComponentTypeMap[T][] {\n return getElements(`[data-md-component=${type}]`, node)\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport ClipboardJS from \"clipboard\"\nimport {\n EMPTY,\n Observable,\n Subject,\n defer,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n filter,\n finalize,\n map,\n mergeWith,\n switchMap,\n take,\n takeLast,\n takeUntil,\n tap\n} from \"rxjs\"\n\nimport { feature } from \"~/_\"\nimport {\n getElementContentSize,\n watchElementSize,\n watchElementVisibility\n} from \"~/browser\"\nimport { renderClipboardButton } from \"~/templates\"\n\nimport { Component } from \"../../../_\"\nimport {\n Annotation,\n mountAnnotationList\n} from \"../../annotation\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Code block\n */\nexport interface CodeBlock {\n scrollable: boolean /* Code block overflows */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n print$: Observable /* Media print observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Global sequence number for Clipboard.js integration\n */\nlet sequence = 0\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Find candidate list element directly following a code block\n *\n * @param el - Code block element\n *\n * @returns List element or nothing\n */\nfunction findCandidateList(el: HTMLElement): HTMLElement | undefined {\n if (el.nextElementSibling) {\n const sibling = el.nextElementSibling as HTMLElement\n if (sibling.tagName === \"OL\")\n return sibling\n\n /* Skip empty paragraphs - see https://bit.ly/3r4ZJ2O */\n else if (sibling.tagName === \"P\" && !sibling.children.length)\n return findCandidateList(sibling)\n }\n\n /* Everything else */\n return undefined\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch code block\n *\n * This function monitors size changes of the viewport, as well as switches of\n * content tabs with embedded code blocks, as both may trigger overflow.\n *\n * @param el - Code block element\n *\n * @returns Code block observable\n */\nexport function watchCodeBlock(\n el: HTMLElement\n): Observable {\n return watchElementSize(el)\n .pipe(\n map(({ width }) => {\n const content = getElementContentSize(el)\n return {\n scrollable: content.width > width\n }\n }),\n distinctUntilKeyChanged(\"scrollable\")\n )\n}\n\n/**\n * Mount code block\n *\n * This function ensures that an overflowing code block is focusable through\n * keyboard, so it can be scrolled without a mouse to improve on accessibility.\n * Furthermore, if code annotations are enabled, they are mounted if and only\n * if the code block is currently visible, e.g., not in a hidden content tab.\n *\n * @param el - Code block element\n * @param options - Options\n *\n * @returns Code block and annotation component observable\n */\nexport function mountCodeBlock(\n el: HTMLElement, options: MountOptions\n): Observable> {\n const { matches: hover } = matchMedia(\"(hover)\")\n\n /* Defer mounting of code block - see https://bit.ly/3vHVoVD */\n const factory$ = defer(() => {\n const push$ = new Subject()\n push$.subscribe(({ scrollable }) => {\n if (scrollable && hover)\n el.setAttribute(\"tabindex\", \"0\")\n else\n el.removeAttribute(\"tabindex\")\n })\n\n /* Render button for Clipboard.js integration */\n if (ClipboardJS.isSupported()) {\n const parent = el.closest(\"pre\")!\n parent.id = `__code_${++sequence}`\n parent.insertBefore(\n renderClipboardButton(parent.id),\n el\n )\n }\n\n /* Handle code annotations */\n const container = el.closest(\".highlight\")\n if (container instanceof HTMLElement) {\n const list = findCandidateList(container)\n\n /* Mount code annotations, if enabled */\n if (typeof list !== \"undefined\" && (\n container.classList.contains(\"annotate\") ||\n feature(\"content.code.annotate\")\n )) {\n const annotations$ = mountAnnotationList(list, el, options)\n\n /* Create and return component */\n return watchCodeBlock(el)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state })),\n mergeWith(\n watchElementSize(container)\n .pipe(\n takeUntil(push$.pipe(takeLast(1))),\n map(({ width, height }) => width && height),\n distinctUntilChanged(),\n switchMap(active => active ? annotations$ : EMPTY)\n )\n )\n )\n }\n }\n\n /* Create and return component */\n return watchCodeBlock(el)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n\n /* Mount code block on first sight */\n return watchElementVisibility(el)\n .pipe(\n filter(visible => visible),\n take(1),\n switchMap(() => factory$)\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render an empty annotation\n *\n * @param id - Annotation identifier\n *\n * @returns Element\n */\nexport function renderAnnotation(id: number): HTMLElement {\n return (\n \n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { translation } from \"~/_\"\nimport { h } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a 'copy-to-clipboard' button\n *\n * @param id - Unique identifier\n *\n * @returns Element\n */\nexport function renderClipboardButton(id: string): HTMLElement {\n return (\n code`}\n >\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ComponentChild } from \"preact\"\n\nimport { feature, translation } from \"~/_\"\nimport {\n SearchDocument,\n SearchMetadata,\n SearchResultItem\n} from \"~/integrations/search\"\nimport { h, truncate } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Render flag\n */\nconst enum Flag {\n TEASER = 1, /* Render teaser */\n PARENT = 2 /* Render as parent */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper function\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a search document\n *\n * @param document - Search document\n * @param flag - Render flags\n *\n * @returns Element\n */\nfunction renderSearchDocument(\n document: SearchDocument & SearchMetadata, flag: Flag\n): HTMLElement {\n const parent = flag & Flag.PARENT\n const teaser = flag & Flag.TEASER\n\n /* Render missing query terms */\n const missing = Object.keys(document.terms)\n .filter(key => !document.terms[key])\n .reduce((list, key) => [\n ...list, {key}, \" \"\n ], [])\n .slice(0, -1)\n\n /* Assemble query string for highlighting */\n const url = new URL(document.location)\n if (feature(\"search.highlight\"))\n url.searchParams.set(\"h\", Object.entries(document.terms)\n .filter(([, match]) => match)\n .reduce((highlight, [value]) => `${highlight} ${value}`.trim(), \"\")\n )\n\n /* Render article or section, depending on flags */\n return (\n \n \n {parent > 0 &&
}\n

{document.title}

\n {teaser > 0 && document.text.length > 0 &&\n

\n {truncate(document.text, 320)}\n

\n }\n {document.tags && document.tags.map(tag => (\n {tag}\n ))}\n {teaser > 0 && missing.length > 0 &&\n

\n {translation(\"search.result.term.missing\")}: {...missing}\n

\n }\n \n \n )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a search result\n *\n * @param result - Search result\n *\n * @returns Element\n */\nexport function renderSearchResultItem(\n result: SearchResultItem\n): HTMLElement {\n const threshold = result[0].score\n const docs = [...result]\n\n /* Find and extract parent article */\n const parent = docs.findIndex(doc => !doc.location.includes(\"#\"))\n const [article] = docs.splice(parent, 1)\n\n /* Determine last index above threshold */\n let index = docs.findIndex(doc => doc.score < threshold)\n if (index === -1)\n index = docs.length\n\n /* Partition sections */\n const best = docs.slice(0, index)\n const more = docs.slice(index)\n\n /* Render children */\n const children = [\n renderSearchDocument(article, Flag.PARENT | +(!parent && index === 0)),\n ...best.map(section => renderSearchDocument(section, Flag.TEASER)),\n ...more.length ? [\n
\n \n {more.length > 0 && more.length === 1\n ? translation(\"search.result.more.one\")\n : translation(\"search.result.more.other\", more.length)\n }\n \n {...more.map(section => renderSearchDocument(section, Flag.TEASER))}\n
\n ] : []\n ]\n\n /* Render search result */\n return (\n
  • \n {children}\n
    • \n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SourceFacts } from \"~/components\"\nimport { h, round } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render repository facts\n *\n * @param facts - Repository facts\n *\n * @returns Element\n */\nexport function renderSourceFacts(facts: SourceFacts): HTMLElement {\n return (\n
      \n {Object.entries(facts).map(([key, value]) => (\n
    • \n {typeof value === \"number\" ? round(value) : value}\n
      • \n ))}\n
    \n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Tabbed control type\n */\ntype TabbedControlType =\n | \"prev\"\n | \"next\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render control for content tabs\n *\n * @param type - Control type\n *\n * @returns Element\n */\nexport function renderTabbedControl(\n type: TabbedControlType\n): HTMLElement {\n const classes = `tabbed-control tabbed-control--${type}`\n return (\n \n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a table inside a wrapper to improve scrolling on mobile\n *\n * @param table - Table element\n *\n * @returns Element\n */\nexport function renderTable(table: HTMLElement): HTMLElement {\n return (\n
    \n
    \n {table}\n
    \n
    \n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { configuration, translation } from \"~/_\"\nimport { h } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Version\n */\nexport interface Version {\n version: string /* Version identifier */\n title: string /* Version title */\n aliases: string[] /* Version aliases */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a version\n *\n * @param version - Version\n *\n * @returns Element\n */\nfunction renderVersion(version: Version): HTMLElement {\n const config = configuration()\n\n /* Ensure trailing slash, see https://bit.ly/3rL5u3f */\n const url = new URL(`../${version.version}/`, config.base)\n return (\n
  • \n \n {version.title}\n \n
    • \n )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a version selector\n *\n * @param versions - Versions\n * @param active - Active version\n *\n * @returns Element\n */\nexport function renderVersionSelector(\n versions: Version[], active: Version\n): HTMLElement {\n return (\n
    \n \n {active.title}\n \n
      \n {versions.map(renderVersion)}\n
    \n
    \n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n EMPTY,\n Observable,\n Subject,\n animationFrameScheduler,\n combineLatest,\n defer,\n finalize,\n fromEvent,\n map,\n switchMap,\n take,\n takeLast,\n takeUntil,\n tap,\n throttleTime\n} from \"rxjs\"\n\nimport {\n ElementOffset,\n getElement,\n getElementSize,\n watchElementContentOffset,\n watchElementFocus,\n watchElementOffset,\n watchElementVisibility\n} from \"~/browser\"\n\nimport { Component } from \"../../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Annotation\n */\nexport interface Annotation {\n active: boolean /* Annotation is active */\n offset: ElementOffset /* Annotation offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch annotation\n *\n * @param el - Annotation element\n * @param container - Containing element\n *\n * @returns Annotation observable\n */\nexport function watchAnnotation(\n el: HTMLElement, container: HTMLElement\n): Observable {\n const offset$ = defer(() => combineLatest([\n watchElementOffset(el),\n watchElementContentOffset(container)\n ]))\n .pipe(\n map(([{ x, y }, scroll]) => {\n const { width } = getElementSize(el)\n return ({\n x: x - scroll.x + width / 2,\n y: y - scroll.y\n })\n })\n )\n\n /* Actively watch annotation on focus */\n return watchElementFocus(el)\n .pipe(\n switchMap(active => offset$\n .pipe(\n map(offset => ({ active, offset })),\n take(+!active || Infinity)\n )\n )\n )\n}\n\n/**\n * Mount annotation\n *\n * @param el - Annotation element\n * @param container - Containing element\n *\n * @returns Annotation component observable\n */\nexport function mountAnnotation(\n el: HTMLElement, container: HTMLElement\n): Observable> {\n return defer(() => {\n const push$ = new Subject()\n push$.subscribe({\n\n /* Handle emission */\n next({ offset }) {\n el.style.setProperty(\"--md-tooltip-x\", `${offset.x}px`)\n el.style.setProperty(\"--md-tooltip-y\", `${offset.y}px`)\n },\n\n /* Handle complete */\n complete() {\n el.style.removeProperty(\"--md-tooltip-x\")\n el.style.removeProperty(\"--md-tooltip-y\")\n }\n })\n\n /* Start animation only when annotation is visible */\n const done$ = push$.pipe(takeLast(1))\n watchElementVisibility(el)\n .pipe(\n takeUntil(done$)\n )\n .subscribe(visible => {\n el.toggleAttribute(\"data-md-visible\", visible)\n })\n\n /* Track relative origin of tooltip */\n push$\n .pipe(\n throttleTime(500, animationFrameScheduler),\n map(() => container.getBoundingClientRect()),\n map(({ x }) => x)\n )\n .subscribe({\n\n /* Handle emission */\n next(origin) {\n if (origin)\n el.style.setProperty(\"--md-tooltip-0\", `${-origin}px`)\n else\n el.style.removeProperty(\"--md-tooltip-0\")\n },\n\n /* Handle complete */\n complete() {\n el.style.removeProperty(\"--md-tooltip-0\")\n }\n })\n\n /* Close open annotation on click */\n const index = getElement(\":scope > :last-child\", el)\n const blur$ = fromEvent(index, \"mousedown\", { once: true })\n push$\n .pipe(\n switchMap(({ active }) => active ? blur$ : EMPTY),\n tap(ev => ev.preventDefault())\n )\n .subscribe(() => el.blur())\n\n /* Create and return component */\n return watchAnnotation(el, container)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n EMPTY,\n Observable,\n Subject,\n defer,\n finalize,\n merge,\n share,\n takeLast,\n takeUntil\n} from \"rxjs\"\n\nimport {\n getElement,\n getElements,\n getOptionalElement\n} from \"~/browser\"\nimport { renderAnnotation } from \"~/templates\"\n\nimport { Component } from \"../../../_\"\nimport {\n Annotation,\n mountAnnotation\n} from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n print$: Observable /* Media print observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Find all annotation markers in the given code block\n *\n * @param container - Containing element\n *\n * @returns Annotation markers\n */\nfunction findAnnotationMarkers(container: HTMLElement): Text[] {\n const markers: Text[] = []\n for (const comment of getElements(\".c, .c1, .cm\", container)) {\n let match: RegExpExecArray | null\n\n /* Split text at marker and add to list */\n let text = comment.firstChild as Text\n if (text instanceof Text)\n while ((match = /\\((\\d+)\\)/.exec(text.textContent!))) {\n const marker = text.splitText(match.index)\n text = marker.splitText(match[0].length)\n markers.push(marker)\n }\n }\n return markers\n}\n\n/**\n * Swap the child nodes of two elements\n *\n * @param source - Source element\n * @param target - Target element\n */\nfunction swap(source: HTMLElement, target: HTMLElement): void {\n target.append(...Array.from(source.childNodes))\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount annotation list\n *\n * This function analyzes the containing code block and checks for markers\n * referring to elements in the given annotation list. If no markers are found,\n * the list is left untouched. Otherwise, list elements are rendered as\n * annotations inside the code block.\n *\n * @param el - Annotation list element\n * @param container - Containing element\n * @param options - Options\n *\n * @returns Annotation component observable\n */\nexport function mountAnnotationList(\n el: HTMLElement, container: HTMLElement, { print$ }: MountOptions\n): Observable> {\n\n /* Find and replace all markers with empty annotations */\n const annotations = new Map()\n for (const marker of findAnnotationMarkers(container)) {\n const [, id] = marker.textContent!.match(/\\((\\d+)\\)/)!\n if (getOptionalElement(`li:nth-child(${id})`, el)) {\n annotations.set(+id, renderAnnotation(+id))\n marker.replaceWith(annotations.get(+id)!)\n }\n }\n\n /* Keep list if there are no annotations to render */\n if (annotations.size === 0)\n return EMPTY\n\n /* Create and return component */\n return defer(() => {\n const done$ = new Subject()\n\n /* Handle print mode - see https://bit.ly/3rgPdpt */\n print$\n .pipe(\n takeUntil(done$.pipe(takeLast(1)))\n )\n .subscribe(active => {\n el.hidden = !active\n\n /* Show annotations in code block or list (print) */\n for (const [id, annotation] of annotations) {\n const inner = getElement(\".md-typeset\", annotation)\n const child = getElement(`li:nth-child(${id})`, el)\n if (!active)\n swap(child, inner)\n else\n swap(inner, child)\n }\n })\n\n /* Create and return component */\n return merge(...[...annotations]\n .map(([, annotation]) => (\n mountAnnotation(annotation, container)\n ))\n )\n .pipe(\n finalize(() => done$.complete()),\n share()\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n map,\n of,\n shareReplay,\n tap\n} from \"rxjs\"\n\nimport { watchScript } from \"~/browser\"\nimport { h } from \"~/utilities\"\n\nimport { Component } from \"../../../_\"\n\nimport themeCSS from \"./index.css\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mermaid diagram\n */\nexport interface Mermaid {}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Mermaid instance observable\n */\nlet mermaid$: Observable\n\n/**\n * Global sequence number for diagrams\n */\nlet sequence = 0\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch Mermaid script\n *\n * @returns Mermaid scripts observable\n */\nfunction fetchScripts(): Observable {\n return typeof mermaid === \"undefined\" || mermaid instanceof Element\n ? watchScript(\"https://unpkg.com/mermaid@9.0.1/dist/mermaid.min.js\")\n : of(undefined)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount Mermaid diagram\n *\n * @param el - Code block element\n *\n * @returns Mermaid diagram component observable\n */\nexport function mountMermaid(\n el: HTMLElement\n): Observable> {\n el.classList.remove(\"mermaid\") // Hack: mitigate https://bit.ly/3CiN6Du\n mermaid$ ||= fetchScripts()\n .pipe(\n tap(() => mermaid.initialize({\n startOnLoad: false,\n themeCSS\n })),\n map(() => undefined),\n shareReplay(1)\n )\n\n /* Render diagram */\n mermaid$.subscribe(() => {\n el.classList.add(\"mermaid\") // Hack: mitigate https://bit.ly/3CiN6Du\n const id = `__mermaid_${sequence++}`\n const host = h(\"div\", { class: \"mermaid\" })\n mermaid.mermaidAPI.render(id, el.textContent, (svg: string) => {\n\n /* Create a shadow root and inject diagram */\n const shadow = host.attachShadow({ mode: \"closed\" })\n shadow.innerHTML = svg\n\n /* Replace code block with diagram */\n el.replaceWith(host)\n })\n })\n\n /* Create and return component */\n return mermaid$\n .pipe(\n map(() => ({ ref: el }))\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n defer,\n filter,\n finalize,\n map,\n merge,\n tap\n} from \"rxjs\"\n\nimport { Component } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Details\n */\nexport interface Details {\n action: \"open\" | \"close\" /* Details state */\n reveal?: boolean /* Details is revealed */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n target$: Observable /* Location target observable */\n print$: Observable /* Media print observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n target$: Observable /* Location target observable */\n print$: Observable /* Media print observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch details\n *\n * @param el - Details element\n * @param options - Options\n *\n * @returns Details observable\n */\nexport function watchDetails(\n el: HTMLDetailsElement, { target$, print$ }: WatchOptions\n): Observable
    {\n let open = true\n return merge(\n\n /* Open and focus details on location target */\n target$\n .pipe(\n map(target => target.closest(\"details:not([open])\")!),\n filter(details => el === details),\n map(() => ({\n action: \"open\", reveal: true\n }) as Details)\n ),\n\n /* Open details on print and close afterwards */\n print$\n .pipe(\n filter(active => active || !open),\n tap(() => open = el.open),\n map(active => ({\n action: active ? \"open\" : \"close\"\n }) as Details)\n )\n )\n}\n\n/**\n * Mount details\n *\n * This function ensures that `details` tags are opened on anchor jumps and\n * prior to printing, so the whole content of the page is visible.\n *\n * @param el - Details element\n * @param options - Options\n *\n * @returns Details component observable\n */\nexport function mountDetails(\n el: HTMLDetailsElement, options: MountOptions\n): Observable> {\n return defer(() => {\n const push$ = new Subject
    ()\n push$.subscribe(({ action, reveal }) => {\n if (action === \"open\")\n el.setAttribute(\"open\", \"\")\n else\n el.removeAttribute(\"open\")\n if (reveal)\n el.scrollIntoView()\n })\n\n /* Create and return component */\n return watchDetails(el, options)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, of } from \"rxjs\"\n\nimport { renderTable } from \"~/templates\"\nimport { h } from \"~/utilities\"\n\nimport { Component } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Data table\n */\nexport interface DataTable {}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Sentinel for replacement\n */\nconst sentinel = h(\"table\")\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount data table\n *\n * This function wraps a data table in another scrollable container, so it can\n * be smoothly scrolled on smaller screen sizes and won't break the layout.\n *\n * @param el - Data table element\n *\n * @returns Data table component observable\n */\nexport function mountDataTable(\n el: HTMLElement\n): Observable> {\n el.replaceWith(sentinel)\n sentinel.replaceWith(renderTable(el))\n\n /* Create and return component */\n return of({ ref: el })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n animationFrameScheduler,\n asyncScheduler,\n auditTime,\n combineLatest,\n defer,\n finalize,\n fromEvent,\n map,\n merge,\n skip,\n startWith,\n subscribeOn,\n takeLast,\n takeUntil,\n tap\n} from \"rxjs\"\n\nimport { feature } from \"~/_\"\nimport {\n getElement,\n getElementContentOffset,\n getElementContentSize,\n getElementOffset,\n getElementSize,\n getElements,\n watchElementContentOffset,\n watchElementSize\n} from \"~/browser\"\nimport { renderTabbedControl } from \"~/templates\"\n\nimport { Component } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Content tabs\n */\nexport interface ContentTabs {\n active: HTMLLabelElement /* Active tab label */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch content tabs\n *\n * @param el - Content tabs element\n *\n * @returns Content tabs observable\n */\nexport function watchContentTabs(\n el: HTMLElement\n): Observable {\n const inputs = getElements(\":scope > input\", el)\n const initial = inputs.find(input => input.checked) || inputs[0]\n return merge(...inputs.map(input => fromEvent(input, \"change\")\n .pipe(\n map(() => getElement(`label[for=${input.id}]`))\n )\n ))\n .pipe(\n startWith(getElement(`label[for=${initial.id}]`)),\n map(active => ({ active }))\n )\n}\n\n/**\n * Mount content tabs\n *\n * This function scrolls the active tab into view. While this functionality is\n * provided by browsers as part of `scrollInfoView`, browsers will always also\n * scroll the vertical axis, which we do not want. Thus, we decided to provide\n * this functionality ourselves.\n *\n * @param el - Content tabs element\n *\n * @returns Content tabs component observable\n */\nexport function mountContentTabs(\n el: HTMLElement\n): Observable> {\n\n /* Render content tab previous button for pagination */\n const prev = renderTabbedControl(\"prev\")\n el.append(prev)\n\n /* Render content tab next button for pagination */\n const next = renderTabbedControl(\"next\")\n el.append(next)\n\n /* Mount component on subscription */\n const container = getElement(\".tabbed-labels\", el)\n return defer(() => {\n const push$ = new Subject()\n const done$ = push$.pipe(takeLast(1))\n combineLatest([push$, watchElementSize(el)])\n .pipe(\n auditTime(1, animationFrameScheduler),\n takeUntil(done$)\n )\n .subscribe({\n\n /* Handle emission */\n next([{ active }, size]) {\n const offset = getElementOffset(active)\n const { width } = getElementSize(active)\n\n /* Set tab indicator offset and width */\n el.style.setProperty(\"--md-indicator-x\", `${offset.x}px`)\n el.style.setProperty(\"--md-indicator-width\", `${width}px`)\n\n /* Scroll container to active content tab */\n const content = getElementContentOffset(container)\n if (\n offset.x < content.x ||\n offset.x + width > content.x + size.width\n )\n container.scrollTo({\n left: Math.max(0, offset.x - 16),\n behavior: \"smooth\"\n })\n },\n\n /* Handle complete */\n complete() {\n el.style.removeProperty(\"--md-indicator-x\")\n el.style.removeProperty(\"--md-indicator-width\")\n }\n })\n\n /* Hide content tab buttons on borders */\n combineLatest([\n watchElementContentOffset(container),\n watchElementSize(container)\n ])\n .pipe(\n takeUntil(done$)\n )\n .subscribe(([offset, size]) => {\n const content = getElementContentSize(container)\n prev.hidden = offset.x < 16\n next.hidden = offset.x > content.width - size.width - 16\n })\n\n /* Paginate content tab container on click */\n merge(\n fromEvent(prev, \"click\").pipe(map(() => -1)),\n fromEvent(next, \"click\").pipe(map(() => +1))\n )\n .pipe(\n takeUntil(done$)\n )\n .subscribe(direction => {\n const { width } = getElementSize(container)\n container.scrollBy({\n left: width * direction,\n behavior: \"smooth\"\n })\n })\n\n /* Set up linking of content tabs, if enabled */\n if (feature(\"content.tabs.link\"))\n push$.pipe(skip(1))\n .subscribe(({ active }) => {\n const tab = active.innerText.trim()\n for (const set of getElements(\"[data-tabs]\"))\n for (const input of getElements(\n \":scope > input\", set\n )) {\n const label = getElement(`label[for=${input.id}]`)\n if (label.innerText.trim() === tab) {\n input.click()\n break\n }\n }\n\n /* Persist active tabs in local storage */\n const tabs = __md_get(\"__tabs\") || []\n __md_set(\"__tabs\", [...new Set([tab, ...tabs])])\n })\n\n /* Create and return component */\n return watchContentTabs(el)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n .pipe(\n subscribeOn(asyncScheduler)\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, merge } from \"rxjs\"\n\nimport { getElements } from \"~/browser\"\n\nimport { Component } from \"../../_\"\nimport { Annotation } from \"../annotation\"\nimport {\n CodeBlock,\n Mermaid,\n mountCodeBlock,\n mountMermaid\n} from \"../code\"\nimport {\n Details,\n mountDetails\n} from \"../details\"\nimport {\n DataTable,\n mountDataTable\n} from \"../table\"\nimport {\n ContentTabs,\n mountContentTabs\n} from \"../tabs\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Content\n */\nexport type Content =\n | Annotation\n | ContentTabs\n | CodeBlock\n | Mermaid\n | DataTable\n | Details\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n target$: Observable /* Location target observable */\n print$: Observable /* Media print observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount content\n *\n * This function mounts all components that are found in the content of the\n * actual article, including code blocks, data tables and details.\n *\n * @param el - Content element\n * @param options - Options\n *\n * @returns Content component observable\n */\nexport function mountContent(\n el: HTMLElement, { target$, print$ }: MountOptions\n): Observable> {\n return merge(\n\n /* Code blocks */\n ...getElements(\"pre:not(.mermaid) > code\", el)\n .map(child => mountCodeBlock(child, { print$ })),\n\n /* Mermaid diagrams */\n ...getElements(\"pre.mermaid\", el)\n .map(child => mountMermaid(child)),\n\n /* Data tables */\n ...getElements(\"table:not([class])\", el)\n .map(child => mountDataTable(child)),\n\n /* Details */\n ...getElements(\"details\", el)\n .map(child => mountDetails(child, { target$, print$ })),\n\n /* Content tabs */\n ...getElements(\"[data-tabs]\", el)\n .map(child => mountContentTabs(child))\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n defer,\n delay,\n finalize,\n map,\n merge,\n of,\n switchMap,\n tap\n} from \"rxjs\"\n\nimport { getElement } from \"~/browser\"\n\nimport { Component } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Dialog\n */\nexport interface Dialog {\n message: string /* Dialog message */\n active: boolean /* Dialog is active */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n alert$: Subject /* Alert subject */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n alert$: Subject /* Alert subject */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch dialog\n *\n * @param _el - Dialog element\n * @param options - Options\n *\n * @returns Dialog observable\n */\nexport function watchDialog(\n _el: HTMLElement, { alert$ }: WatchOptions\n): Observable {\n return alert$\n .pipe(\n switchMap(message => merge(\n of(true),\n of(false).pipe(delay(2000))\n )\n .pipe(\n map(active => ({ message, active }))\n )\n )\n )\n}\n\n/**\n * Mount dialog\n *\n * This function reveals the dialog in the right corner when a new alert is\n * emitted through the subject that is passed as part of the options.\n *\n * @param el - Dialog element\n * @param options - Options\n *\n * @returns Dialog component observable\n */\nexport function mountDialog(\n el: HTMLElement, options: MountOptions\n): Observable> {\n const inner = getElement(\".md-typeset\", el)\n return defer(() => {\n const push$ = new Subject()\n push$.subscribe(({ message, active }) => {\n el.classList.toggle(\"md-dialog--active\", active)\n inner.textContent = message\n })\n\n /* Create and return component */\n return watchDialog(el, options)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n bufferCount,\n combineLatest,\n combineLatestWith,\n defer,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n filter,\n map,\n of,\n shareReplay,\n startWith,\n switchMap,\n takeLast,\n takeUntil\n} from \"rxjs\"\n\nimport { feature } from \"~/_\"\nimport {\n Viewport,\n watchElementSize,\n watchToggle\n} from \"~/browser\"\n\nimport { Component } from \"../../_\"\nimport { Main } from \"../../main\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Header\n */\nexport interface Header {\n height: number /* Header visible height */\n hidden: boolean /* Header is hidden */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n main$: Observable
    /* Main area observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Compute whether the header is hidden\n *\n * If the user scrolls past a certain threshold, the header can be hidden when\n * scrolling down, and shown when scrolling up.\n *\n * @param options - Options\n *\n * @returns Toggle observable\n */\nfunction isHidden({ viewport$ }: WatchOptions): Observable {\n if (!feature(\"header.autohide\"))\n return of(false)\n\n /* Compute direction and turning point */\n const direction$ = viewport$\n .pipe(\n map(({ offset: { y } }) => y),\n bufferCount(2, 1),\n map(([a, b]) => [a < b, b] as const),\n distinctUntilKeyChanged(0)\n )\n\n /* Compute whether header should be hidden */\n const hidden$ = combineLatest([viewport$, direction$])\n .pipe(\n filter(([{ offset }, [, y]]) => Math.abs(y - offset.y) > 100),\n map(([, [direction]]) => direction),\n distinctUntilChanged()\n )\n\n /* Compute threshold for hiding */\n const search$ = watchToggle(\"search\")\n return combineLatest([viewport$, search$])\n .pipe(\n map(([{ offset }, search]) => offset.y > 400 && !search),\n distinctUntilChanged(),\n switchMap(active => active ? hidden$ : of(false)),\n startWith(false)\n )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch header\n *\n * @param el - Header element\n * @param options - Options\n *\n * @returns Header observable\n */\nexport function watchHeader(\n el: HTMLElement, options: WatchOptions\n): Observable
    {\n return defer(() => combineLatest([\n watchElementSize(el),\n isHidden(options)\n ]))\n .pipe(\n map(([{ height }, hidden]) => ({\n height,\n hidden\n })),\n distinctUntilChanged((a, b) => (\n a.height === b.height &&\n a.hidden === b.hidden\n )),\n shareReplay(1)\n )\n}\n\n/**\n * Mount header\n *\n * This function manages the different states of the header, i.e. whether it's\n * hidden or rendered with a shadow. This depends heavily on the main area.\n *\n * @param el - Header element\n * @param options - Options\n *\n * @returns Header component observable\n */\nexport function mountHeader(\n el: HTMLElement, { header$, main$ }: MountOptions\n): Observable> {\n return defer(() => {\n const push$ = new Subject
    ()\n const done$ = push$.pipe(takeLast(1))\n push$\n .pipe(\n distinctUntilKeyChanged(\"active\"),\n combineLatestWith(header$)\n )\n .subscribe(([{ active }, { hidden }]) => {\n el.classList.toggle(\"md-header--shadow\", active && !hidden)\n el.hidden = hidden\n })\n\n /* Link to main area */\n main$.subscribe(push$)\n\n /* Create and return component */\n return header$\n .pipe(\n takeUntil(done$),\n map(state => ({ ref: el, ...state }))\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n EMPTY,\n Observable,\n Subject,\n defer,\n distinctUntilKeyChanged,\n finalize,\n map,\n tap\n} from \"rxjs\"\n\nimport {\n Viewport,\n getElementSize,\n getOptionalElement,\n watchViewportAt\n} from \"~/browser\"\n\nimport { Component } from \"../../_\"\nimport { Header } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Header\n */\nexport interface HeaderTitle {\n active: boolean /* Header title is active */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch header title\n *\n * @param el - Heading element\n * @param options - Options\n *\n * @returns Header title observable\n */\nexport function watchHeaderTitle(\n el: HTMLElement, { viewport$, header$ }: WatchOptions\n): Observable {\n return watchViewportAt(el, { viewport$, header$ })\n .pipe(\n map(({ offset: { y } }) => {\n const { height } = getElementSize(el)\n return {\n active: y >= height\n }\n }),\n distinctUntilKeyChanged(\"active\")\n )\n}\n\n/**\n * Mount header title\n *\n * This function swaps the header title from the site title to the title of the\n * current page when the user scrolls past the first headline.\n *\n * @param el - Header title element\n * @param options - Options\n *\n * @returns Header title component observable\n */\nexport function mountHeaderTitle(\n el: HTMLElement, options: MountOptions\n): Observable> {\n return defer(() => {\n const push$ = new Subject()\n push$.subscribe(({ active }) => {\n el.classList.toggle(\"md-header__title--active\", active)\n })\n\n /* Obtain headline, if any */\n const heading = getOptionalElement(\"article h1\")\n if (typeof heading === \"undefined\")\n return EMPTY\n\n /* Create and return component */\n return watchHeaderTitle(heading, options)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n combineLatest,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n map,\n switchMap\n} from \"rxjs\"\n\nimport {\n Viewport,\n watchElementSize\n} from \"~/browser\"\n\nimport { Header } from \"../header\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Main area\n */\nexport interface Main {\n offset: number /* Main area top offset */\n height: number /* Main area visible height */\n active: boolean /* Main area is active */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch main area\n *\n * This function returns an observable that computes the visual parameters of\n * the main area which depends on the viewport vertical offset and height, as\n * well as the height of the header element, if the header is fixed.\n *\n * @param el - Main area element\n * @param options - Options\n *\n * @returns Main area observable\n */\nexport function watchMain(\n el: HTMLElement, { viewport$, header$ }: WatchOptions\n): Observable
    {\n\n /* Compute necessary adjustment for header */\n const adjust$ = header$\n .pipe(\n map(({ height }) => height),\n distinctUntilChanged()\n )\n\n /* Compute the main area's top and bottom borders */\n const border$ = adjust$\n .pipe(\n switchMap(() => watchElementSize(el)\n .pipe(\n map(({ height }) => ({\n top: el.offsetTop,\n bottom: el.offsetTop + height\n })),\n distinctUntilKeyChanged(\"bottom\")\n )\n )\n )\n\n /* Compute the main area's offset, visible height and if we scrolled past */\n return combineLatest([adjust$, border$, viewport$])\n .pipe(\n map(([header, { top, bottom }, { offset: { y }, size: { height } }]) => {\n height = Math.max(0, height\n - Math.max(0, top - y, header)\n - Math.max(0, height + y - bottom)\n )\n return {\n offset: top - header,\n height,\n active: top - header <= y\n }\n }),\n distinctUntilChanged((a, b) => (\n a.offset === b.offset &&\n a.height === b.height &&\n a.active === b.active\n ))\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n asyncScheduler,\n defer,\n finalize,\n fromEvent,\n map,\n mergeMap,\n observeOn,\n of,\n shareReplay,\n startWith,\n tap\n} from \"rxjs\"\n\nimport { getElements } from \"~/browser\"\n\nimport { Component } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Palette colors\n */\nexport interface PaletteColor {\n scheme?: string /* Color scheme */\n primary?: string /* Primary color */\n accent?: string /* Accent color */\n}\n\n/**\n * Palette\n */\nexport interface Palette {\n index: number /* Palette index */\n color: PaletteColor /* Palette colors */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch color palette\n *\n * @param inputs - Color palette element\n *\n * @returns Color palette observable\n */\nexport function watchPalette(\n inputs: HTMLInputElement[]\n): Observable {\n const current = __md_get(\"__palette\") || {\n index: inputs.findIndex(input => matchMedia(\n input.getAttribute(\"data-md-color-media\")!\n ).matches)\n }\n\n /* Emit changes in color palette */\n return of(...inputs)\n .pipe(\n mergeMap(input => fromEvent(input, \"change\")\n .pipe(\n map(() => input)\n )\n ),\n startWith(inputs[Math.max(0, current.index)]),\n map(input => ({\n index: inputs.indexOf(input),\n color: {\n scheme: input.getAttribute(\"data-md-color-scheme\"),\n primary: input.getAttribute(\"data-md-color-primary\"),\n accent: input.getAttribute(\"data-md-color-accent\")\n }\n } as Palette)),\n shareReplay(1)\n )\n}\n\n/**\n * Mount color palette\n *\n * @param el - Color palette element\n *\n * @returns Color palette component observable\n */\nexport function mountPalette(\n el: HTMLElement\n): Observable> {\n return defer(() => {\n const push$ = new Subject()\n push$.subscribe(palette => {\n document.body.setAttribute(\"data-md-color-switching\", \"\")\n\n /* Set color palette */\n for (const [key, value] of Object.entries(palette.color))\n document.body.setAttribute(`data-md-color-${key}`, value)\n\n /* Toggle visibility */\n for (let index = 0; index < inputs.length; index++) {\n const label = inputs[index].nextElementSibling\n if (label instanceof HTMLElement)\n label.hidden = palette.index !== index\n }\n\n /* Persist preference in local storage */\n __md_set(\"__palette\", palette)\n })\n\n /* Revert transition durations after color switch */\n push$.pipe(observeOn(asyncScheduler))\n .subscribe(() => {\n document.body.removeAttribute(\"data-md-color-switching\")\n })\n\n /* Create and return component */\n const inputs = getElements(\"input\", el)\n return watchPalette(inputs)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport ClipboardJS from \"clipboard\"\nimport {\n Observable,\n Subject,\n map,\n tap\n} from \"rxjs\"\n\nimport { translation } from \"~/_\"\nimport { getElement } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n alert$: Subject /* Alert subject */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Extract text to copy\n *\n * @param el - HTML element\n *\n * @returns Extracted text\n */\nfunction extract(el: HTMLElement): string {\n el.setAttribute(\"data-md-copying\", \"\")\n const text = el.innerText\n el.removeAttribute(\"data-md-copying\")\n return text\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up Clipboard.js integration\n *\n * @param options - Options\n */\nexport function setupClipboardJS(\n { alert$ }: SetupOptions\n): void {\n if (ClipboardJS.isSupported()) {\n new Observable(subscriber => {\n new ClipboardJS(\"[data-clipboard-target], [data-clipboard-text]\", {\n text: el => (\n el.getAttribute(\"data-clipboard-text\")! ||\n extract(getElement(\n el.getAttribute(\"data-clipboard-target\")!\n ))\n )\n })\n .on(\"success\", ev => subscriber.next(ev))\n })\n .pipe(\n tap(ev => {\n const trigger = ev.trigger as HTMLElement\n trigger.focus()\n }),\n map(() => translation(\"clipboard.copied\"))\n )\n .subscribe(alert$)\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n EMPTY,\n Observable,\n catchError,\n defaultIfEmpty,\n map,\n of,\n tap\n} from \"rxjs\"\n\nimport { configuration } from \"~/_\"\nimport { getElements, requestXML } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Sitemap, i.e. a list of URLs\n */\nexport type Sitemap = string[]\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Preprocess a list of URLs\n *\n * This function replaces the `site_url` in the sitemap with the actual base\n * URL, to allow instant loading to work in occasions like Netlify previews.\n *\n * @param urls - URLs\n *\n * @returns URL path parts\n */\nfunction preprocess(urls: Sitemap): Sitemap {\n if (urls.length < 2)\n return [\"\"]\n\n /* Take the first two URLs and remove everything after the last slash */\n const [root, next] = [...urls]\n .sort((a, b) => a.length - b.length)\n .map(url => url.replace(/[^/]+$/, \"\"))\n\n /* Compute common prefix */\n let index = 0\n if (root === next)\n index = root.length\n else\n while (root.charCodeAt(index) === next.charCodeAt(index))\n index++\n\n /* Remove common prefix and return in original order */\n return urls.map(url => url.replace(root.slice(0, index), \"\"))\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch the sitemap for the given base URL\n *\n * @param base - Base URL\n *\n * @returns Sitemap observable\n */\nexport function fetchSitemap(base?: URL): Observable {\n const cached = __md_get(\"__sitemap\", sessionStorage, base)\n if (cached) {\n return of(cached)\n } else {\n const config = configuration()\n return requestXML(new URL(\"sitemap.xml\", base || config.base))\n .pipe(\n map(sitemap => preprocess(getElements(\"loc\", sitemap)\n .map(node => node.textContent!)\n )),\n catchError(() => EMPTY), // @todo refactor instant loading\n defaultIfEmpty([]),\n tap(sitemap => __md_set(\"__sitemap\", sitemap, sessionStorage, base))\n )\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n EMPTY,\n NEVER,\n Observable,\n Subject,\n bufferCount,\n catchError,\n concatMap,\n debounceTime,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n filter,\n fromEvent,\n map,\n merge,\n of,\n sample,\n share,\n skip,\n skipUntil,\n switchMap\n} from \"rxjs\"\n\nimport { configuration, feature } from \"~/_\"\nimport {\n Viewport,\n ViewportOffset,\n getElements,\n getOptionalElement,\n request,\n setLocation,\n setLocationHash\n} from \"~/browser\"\nimport { getComponentElement } from \"~/components\"\nimport { h } from \"~/utilities\"\n\nimport { fetchSitemap } from \"../sitemap\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * History state\n */\nexport interface HistoryState {\n url: URL /* State URL */\n offset?: ViewportOffset /* State viewport offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n document$: Subject /* Document subject */\n location$: Subject /* Location subject */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up instant loading\n *\n * When fetching, theoretically, we could use `responseType: \"document\"`, but\n * since all MkDocs links are relative, we need to make sure that the current\n * location matches the document we just loaded. Otherwise any relative links\n * in the document could use the old location.\n *\n * This is the reason why we need to synchronize history events and the process\n * of fetching the document for navigation changes (except `popstate` events):\n *\n * 1. Fetch document via `XMLHTTPRequest`\n * 2. Set new location via `history.pushState`\n * 3. Parse and emit fetched document\n *\n * For `popstate` events, we must not use `history.pushState`, or the forward\n * history will be irreversibly overwritten. In case the request fails, the\n * location change is dispatched regularly.\n *\n * @param options - Options\n */\nexport function setupInstantLoading(\n { document$, location$, viewport$ }: SetupOptions\n): void {\n const config = configuration()\n if (location.protocol === \"file:\")\n return\n\n /* Disable automatic scroll restoration */\n if (\"scrollRestoration\" in history) {\n history.scrollRestoration = \"manual\"\n\n /* Hack: ensure that reloads restore viewport offset */\n fromEvent(window, \"beforeunload\")\n .subscribe(() => {\n history.scrollRestoration = \"auto\"\n })\n }\n\n /* Hack: ensure absolute favicon link to omit 404s when switching */\n const favicon = getOptionalElement(\"link[rel=icon]\")\n if (typeof favicon !== \"undefined\")\n favicon.href = favicon.href\n\n /* Intercept internal navigation */\n const push$ = fetchSitemap()\n .pipe(\n map(paths => paths.map(path => `${new URL(path, config.base)}`)),\n switchMap(urls => fromEvent(document.body, \"click\")\n .pipe(\n filter(ev => !ev.metaKey && !ev.ctrlKey),\n switchMap(ev => {\n if (ev.target instanceof Element) {\n const el = ev.target.closest(\"a\")\n if (el && !el.target) {\n const url = new URL(el.href)\n\n /* Canonicalize URL */\n url.search = \"\"\n url.hash = \"\"\n\n /* Check if URL should be intercepted */\n if (\n url.pathname !== location.pathname &&\n urls.includes(url.toString())\n ) {\n ev.preventDefault()\n return of({\n url: new URL(el.href)\n })\n }\n }\n }\n return NEVER\n })\n )\n ),\n share()\n )\n\n /* Intercept history back and forward */\n const pop$ = fromEvent(window, \"popstate\")\n .pipe(\n filter(ev => ev.state !== null),\n map(ev => ({\n url: new URL(location.href),\n offset: ev.state\n })),\n share()\n )\n\n /* Emit location change */\n merge(push$, pop$)\n .pipe(\n distinctUntilChanged((a, b) => a.url.href === b.url.href),\n map(({ url }) => url)\n )\n .subscribe(location$)\n\n /* Fetch document via `XMLHTTPRequest` */\n const response$ = location$\n .pipe(\n distinctUntilKeyChanged(\"pathname\"),\n switchMap(url => request(url.href)\n .pipe(\n catchError(() => {\n setLocation(url)\n return NEVER\n })\n )\n ),\n share()\n )\n\n /* Set new location via `history.pushState` */\n push$\n .pipe(\n sample(response$)\n )\n .subscribe(({ url }) => {\n history.pushState({}, \"\", `${url}`)\n })\n\n /* Parse and emit fetched document */\n const dom = new DOMParser()\n response$\n .pipe(\n switchMap(res => res.text()),\n map(res => dom.parseFromString(res, \"text/html\"))\n )\n .subscribe(document$)\n\n /* Replace meta tags and components */\n document$\n .pipe(\n skip(1)\n )\n .subscribe(replacement => {\n for (const selector of [\n\n /* Meta tags */\n \"title\",\n \"link[rel=canonical]\",\n \"meta[name=author]\",\n \"meta[name=description]\",\n\n /* Components */\n \"[data-md-component=announce]\",\n \"[data-md-component=container]\",\n \"[data-md-component=header-topic]\",\n \"[data-md-component=outdated]\",\n \"[data-md-component=logo]\",\n \"[data-md-component=skip]\",\n ...feature(\"navigation.tabs.sticky\")\n ? [\"[data-md-component=tabs]\"]\n : []\n ]) {\n const source = getOptionalElement(selector)\n const target = getOptionalElement(selector, replacement)\n if (\n typeof source !== \"undefined\" &&\n typeof target !== \"undefined\"\n ) {\n source.replaceWith(target)\n }\n }\n })\n\n /* Re-evaluate scripts */\n document$\n .pipe(\n skip(1),\n map(() => getComponentElement(\"container\")),\n switchMap(el => getElements(\"script\", el)),\n concatMap(el => {\n const script = h(\"script\")\n if (el.src) {\n for (const name of el.getAttributeNames())\n script.setAttribute(name, el.getAttribute(name)!)\n el.replaceWith(script)\n\n /* Complete when script is loaded */\n return new Observable(observer => {\n script.onload = () => observer.complete()\n })\n\n /* Complete immediately */\n } else {\n script.textContent = el.textContent\n el.replaceWith(script)\n return EMPTY\n }\n })\n )\n .subscribe()\n\n /* Emit history state change */\n merge(push$, pop$)\n .pipe(\n sample(document$)\n )\n .subscribe(({ url, offset }) => {\n if (url.hash && !offset) {\n setLocationHash(url.hash)\n } else {\n window.scrollTo(0, offset?.y || 0)\n }\n })\n\n /* Debounce update of viewport offset */\n viewport$\n .pipe(\n skipUntil(push$),\n debounceTime(250),\n distinctUntilKeyChanged(\"offset\")\n )\n .subscribe(({ offset }) => {\n history.replaceState(offset, \"\")\n })\n\n /* Set viewport offset from history */\n merge(push$, pop$)\n .pipe(\n bufferCount(2, 1),\n filter(([a, b]) => a.url.pathname === b.url.pathname),\n map(([, state]) => state)\n )\n .subscribe(({ offset }) => {\n window.scrollTo(0, offset?.y || 0)\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport escapeHTML from \"escape-html\"\n\nimport { SearchIndexDocument } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search document\n */\nexport interface SearchDocument extends SearchIndexDocument {\n parent?: SearchIndexDocument /* Parent article */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search document mapping\n */\nexport type SearchDocumentMap = Map\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search document mapping\n *\n * @param docs - Search index documents\n *\n * @returns Search document map\n */\nexport function setupSearchDocumentMap(\n docs: SearchIndexDocument[]\n): SearchDocumentMap {\n const documents = new Map()\n const parents = new Set()\n for (const doc of docs) {\n const [path, hash] = doc.location.split(\"#\")\n\n /* Extract location, title and tags */\n const location = doc.location\n const title = doc.title\n const tags = doc.tags\n\n /* Escape and cleanup text */\n const text = escapeHTML(doc.text)\n .replace(/\\s+(?=[,.:;!?])/g, \"\")\n .replace(/\\s+/g, \" \")\n\n /* Handle section */\n if (hash) {\n const parent = documents.get(path)!\n\n /* Ignore first section, override article */\n if (!parents.has(parent)) {\n parent.title = doc.title\n parent.text = text\n\n /* Remember that we processed the article */\n parents.add(parent)\n\n /* Add subsequent section */\n } else {\n documents.set(location, {\n location,\n title,\n text,\n parent\n })\n }\n\n /* Add article */\n } else {\n documents.set(location, {\n location,\n title,\n text,\n ...tags && { tags }\n })\n }\n }\n return documents\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport escapeHTML from \"escape-html\"\n\nimport { SearchIndexConfig } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search highlight function\n *\n * @param value - Value\n *\n * @returns Highlighted value\n */\nexport type SearchHighlightFn = (value: string) => string\n\n/**\n * Search highlight factory function\n *\n * @param query - Query value\n *\n * @returns Search highlight function\n */\nexport type SearchHighlightFactoryFn = (query: string) => SearchHighlightFn\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search highlighter\n *\n * @param config - Search index configuration\n * @param escape - Whether to escape HTML\n *\n * @returns Search highlight factory function\n */\nexport function setupSearchHighlighter(\n config: SearchIndexConfig, escape: boolean\n): SearchHighlightFactoryFn {\n const separator = new RegExp(config.separator, \"img\")\n const highlight = (_: unknown, data: string, term: string) => {\n return `${data}${term}`\n }\n\n /* Return factory function */\n return (query: string) => {\n query = query\n .replace(/[\\s*+\\-:~^]+/g, \" \")\n .trim()\n\n /* Create search term match expression */\n const match = new RegExp(`(^|${config.separator})(${\n query\n .replace(/[|\\\\{}()[\\]^$+*?.-]/g, \"\\\\$&\")\n .replace(separator, \"|\")\n })`, \"img\")\n\n /* Highlight string value */\n return value => (\n escape\n ? escapeHTML(value)\n : value\n )\n .replace(match, highlight)\n .replace(/<\\/mark>(\\s+)]*>/img, \"$1\")\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search transformation function\n *\n * @param value - Query value\n *\n * @returns Transformed query value\n */\nexport type SearchTransformFn = (value: string) => string\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Default transformation function\n *\n * 1. Search for terms in quotation marks and prepend a `+` modifier to denote\n * that the resulting document must contain all terms, converting the query\n * to an `AND` query (as opposed to the default `OR` behavior). While users\n * may expect terms enclosed in quotation marks to map to span queries, i.e.\n * for which order is important, Lunr.js doesn't support them, so the best\n * we can do is to convert the terms to an `AND` query.\n *\n * 2. Replace control characters which are not located at the beginning of the\n * query or preceded by white space, or are not followed by a non-whitespace\n * character or are at the end of the query string. Furthermore, filter\n * unmatched quotation marks.\n *\n * 3. Trim excess whitespace from left and right.\n *\n * @param query - Query value\n *\n * @returns Transformed query value\n */\nexport function defaultTransform(query: string): string {\n return query\n .split(/\"([^\"]+)\"/g) /* => 1 */\n .map((terms, index) => index & 1\n ? terms.replace(/^\\b|^(?![^\\x00-\\x7F]|$)|\\s+/g, \" +\")\n : terms\n )\n .join(\"\")\n .replace(/\"|(?:^|\\s+)[*+\\-:^~]+(?=\\s+|$)/g, \"\") /* => 2 */\n .trim() /* => 3 */\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchResult } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search message type\n */\nexport const enum SearchMessageType {\n SETUP, /* Search index setup */\n READY, /* Search index ready */\n QUERY, /* Search query */\n RESULT /* Search results */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Message containing the data necessary to setup the search index\n */\nexport interface SearchSetupMessage {\n type: SearchMessageType.SETUP /* Message type */\n data: SearchIndex /* Message data */\n}\n\n/**\n * Message indicating the search index is ready\n */\nexport interface SearchReadyMessage {\n type: SearchMessageType.READY /* Message type */\n}\n\n/**\n * Message containing a search query\n */\nexport interface SearchQueryMessage {\n type: SearchMessageType.QUERY /* Message type */\n data: string /* Message data */\n}\n\n/**\n * Message containing results for a search query\n */\nexport interface SearchResultMessage {\n type: SearchMessageType.RESULT /* Message type */\n data: SearchResult /* Message data */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Message exchanged with the search worker\n */\nexport type SearchMessage =\n | SearchSetupMessage\n | SearchReadyMessage\n | SearchQueryMessage\n | SearchResultMessage\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Type guard for search setup messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchSetupMessage(\n message: SearchMessage\n): message is SearchSetupMessage {\n return message.type === SearchMessageType.SETUP\n}\n\n/**\n * Type guard for search ready messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchReadyMessage(\n message: SearchMessage\n): message is SearchReadyMessage {\n return message.type === SearchMessageType.READY\n}\n\n/**\n * Type guard for search query messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchQueryMessage(\n message: SearchMessage\n): message is SearchQueryMessage {\n return message.type === SearchMessageType.QUERY\n}\n\n/**\n * Type guard for search result messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchResultMessage(\n message: SearchMessage\n): message is SearchResultMessage {\n return message.type === SearchMessageType.RESULT\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n ObservableInput,\n Subject,\n from,\n map,\n share\n} from \"rxjs\"\n\nimport { configuration, feature, translation } from \"~/_\"\nimport { WorkerHandler, watchWorker } from \"~/browser\"\n\nimport { SearchIndex } from \"../../_\"\nimport {\n SearchOptions,\n SearchPipeline\n} from \"../../options\"\nimport {\n SearchMessage,\n SearchMessageType,\n SearchSetupMessage,\n isSearchResultMessage\n} from \"../message\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search worker\n */\nexport type SearchWorker = WorkerHandler\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search index\n *\n * @param data - Search index\n *\n * @returns Search index\n */\nfunction setupSearchIndex({ config, docs }: SearchIndex): SearchIndex {\n\n /* Override default language with value from translation */\n if (config.lang.length === 1 && config.lang[0] === \"en\")\n config.lang = [\n translation(\"search.config.lang\")\n ]\n\n /* Override default separator with value from translation */\n if (config.separator === \"[\\\\s\\\\-]+\")\n config.separator = translation(\"search.config.separator\")\n\n /* Set pipeline from translation */\n const pipeline = translation(\"search.config.pipeline\")\n .split(/\\s*,\\s*/)\n .filter(Boolean) as SearchPipeline\n\n /* Determine search options */\n const options: SearchOptions = {\n pipeline,\n suggestions: feature(\"search.suggest\")\n }\n\n /* Return search index after defaulting */\n return { config, docs, options }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search worker\n *\n * This function creates a web worker to set up and query the search index,\n * which is done using Lunr.js. The index must be passed as an observable to\n * enable hacks like _localsearch_ via search index embedding as JSON.\n *\n * @param url - Worker URL\n * @param index - Search index observable input\n *\n * @returns Search worker\n */\nexport function setupSearchWorker(\n url: string, index: ObservableInput\n): SearchWorker {\n const config = configuration()\n const worker = new Worker(url)\n\n /* Create communication channels and resolve relative links */\n const tx$ = new Subject()\n const rx$ = watchWorker(worker, { tx$ })\n .pipe(\n map(message => {\n if (isSearchResultMessage(message)) {\n for (const result of message.data.items)\n for (const document of result)\n document.location = `${new URL(document.location, config.base)}`\n }\n return message\n }),\n share()\n )\n\n /* Set up search index */\n from(index)\n .pipe(\n map(data => ({\n type: SearchMessageType.SETUP,\n data: setupSearchIndex(data)\n } as SearchSetupMessage))\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Return search worker */\n return { tx$, rx$ }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n EMPTY,\n Subject,\n catchError,\n combineLatest,\n filter,\n fromEvent,\n map,\n of,\n switchMap,\n withLatestFrom\n} from \"rxjs\"\n\nimport { configuration } from \"~/_\"\nimport {\n getElement,\n getLocation,\n requestJSON,\n setLocation\n} from \"~/browser\"\nimport { getComponentElements } from \"~/components\"\nimport {\n Version,\n renderVersionSelector\n} from \"~/templates\"\n\nimport { fetchSitemap } from \"../sitemap\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n document$: Subject /* Document subject */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up version selector\n *\n * @param options - Options\n */\nexport function setupVersionSelector(\n { document$ }: SetupOptions\n): void {\n const config = configuration()\n const versions$ = requestJSON(\n new URL(\"../versions.json\", config.base)\n )\n .pipe(\n catchError(() => EMPTY) // @todo refactor instant loading\n )\n\n /* Determine current version */\n const current$ = versions$\n .pipe(\n map(versions => {\n const [, current] = config.base.match(/([^/]+)\\/?$/)!\n return versions.find(({ version, aliases }) => (\n version === current || aliases.includes(current)\n )) || versions[0]\n })\n )\n\n /* Intercept inter-version navigation */\n versions$\n .pipe(\n map(versions => new Map(versions.map(version => [\n `${new URL(`../${version.version}/`, config.base)}`,\n version\n ]))),\n switchMap(urls => fromEvent(document.body, \"click\")\n .pipe(\n filter(ev => !ev.metaKey && !ev.ctrlKey),\n withLatestFrom(current$),\n switchMap(([ev, current]) => {\n if (ev.target instanceof Element) {\n const el = ev.target.closest(\"a\")\n if (el && !el.target && urls.has(el.href)) {\n ev.preventDefault()\n const url = el.href\n // This is a temporary hack to detect if a version inside the\n // version selector or on another part of the site was clicked.\n // If we're inside the version selector, we definitely want to\n // find the same page, as we might have different deployments\n // due to aliases. However, if we're outside the version\n // selector, we must abort here, because we might otherwise\n // interfere with instant loading. We need to refactor this\n // at some point together with instant loading.\n //\n // See https://github.com/squidfunk/mkdocs-material/issues/4012\n if (!ev.target.closest(\".md-version\")) {\n const version = urls.get(url)!\n if (version === current)\n return EMPTY\n }\n return of(url)\n }\n }\n return EMPTY\n }),\n switchMap(url => {\n const { version } = urls.get(url)!\n return fetchSitemap(new URL(url))\n .pipe(\n map(sitemap => {\n const location = getLocation()\n const path = location.href.replace(config.base, \"\")\n return sitemap.includes(path)\n ? new URL(`../${version}/${path}`, config.base)\n : new URL(url)\n })\n )\n })\n )\n )\n )\n .subscribe(url => setLocation(url))\n\n /* Render version selector and warning */\n combineLatest([versions$, current$])\n .subscribe(([versions, current]) => {\n const topic = getElement(\".md-header__topic\")\n topic.appendChild(renderVersionSelector(versions, current))\n })\n\n /* Integrate outdated version banner with instant loading */\n document$.pipe(switchMap(() => current$))\n .subscribe(current => {\n\n /* Check if version state was already determined */\n let outdated = __md_get(\"__outdated\", sessionStorage)\n if (outdated === null) {\n const latest = config.version?.default || \"latest\"\n outdated = !current.aliases.includes(latest)\n\n /* Persist version state in session storage */\n __md_set(\"__outdated\", outdated, sessionStorage)\n }\n\n /* Unhide outdated version banner */\n if (outdated)\n for (const warning of getComponentElements(\"outdated\"))\n warning.hidden = false\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n combineLatest,\n delay,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n filter,\n finalize,\n fromEvent,\n map,\n merge,\n share,\n shareReplay,\n startWith,\n take,\n takeLast,\n takeUntil,\n tap\n} from \"rxjs\"\n\nimport { translation } from \"~/_\"\nimport {\n getLocation,\n setToggle,\n watchElementFocus,\n watchToggle\n} from \"~/browser\"\nimport {\n SearchMessageType,\n SearchQueryMessage,\n SearchWorker,\n defaultTransform,\n isSearchReadyMessage\n} from \"~/integrations\"\n\nimport { Component } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search query\n */\nexport interface SearchQuery {\n value: string /* Query value */\n focus: boolean /* Query focus */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch search query\n *\n * Note that the focus event which triggers re-reading the current query value\n * is delayed by `1ms` so the input's empty state is allowed to propagate.\n *\n * @param el - Search query element\n * @param worker - Search worker\n *\n * @returns Search query observable\n */\nexport function watchSearchQuery(\n el: HTMLInputElement, { rx$ }: SearchWorker\n): Observable {\n const fn = __search?.transform || defaultTransform\n\n /* Immediately show search dialog */\n const { searchParams } = getLocation()\n if (searchParams.has(\"q\"))\n setToggle(\"search\", true)\n\n /* Intercept query parameter (deep link) */\n const param$ = rx$\n .pipe(\n filter(isSearchReadyMessage),\n take(1),\n map(() => searchParams.get(\"q\") || \"\")\n )\n\n /* Remove query parameter when search is closed */\n watchToggle(\"search\")\n .pipe(\n filter(active => !active),\n take(1)\n )\n .subscribe(() => {\n const url = new URL(location.href)\n url.searchParams.delete(\"q\")\n history.replaceState({}, \"\", `${url}`)\n })\n\n /* Set query from parameter */\n param$.subscribe(value => { // TODO: not ideal - find a better way\n if (value) {\n el.value = value\n el.focus()\n }\n })\n\n /* Intercept focus and input events */\n const focus$ = watchElementFocus(el)\n const value$ = merge(\n fromEvent(el, \"keyup\"),\n fromEvent(el, \"focus\").pipe(delay(1)),\n param$\n )\n .pipe(\n map(() => fn(el.value)),\n startWith(\"\"),\n distinctUntilChanged(),\n )\n\n /* Combine into single observable */\n return combineLatest([value$, focus$])\n .pipe(\n map(([value, focus]) => ({ value, focus })),\n shareReplay(1)\n )\n}\n\n/**\n * Mount search query\n *\n * @param el - Search query element\n * @param worker - Search worker\n *\n * @returns Search query component observable\n */\nexport function mountSearchQuery(\n el: HTMLInputElement, { tx$, rx$ }: SearchWorker\n): Observable> {\n const push$ = new Subject()\n const done$ = push$.pipe(takeLast(1))\n\n /* Handle value changes */\n push$\n .pipe(\n distinctUntilKeyChanged(\"value\"),\n map(({ value }): SearchQueryMessage => ({\n type: SearchMessageType.QUERY,\n data: value\n }))\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Handle focus changes */\n push$\n .pipe(\n distinctUntilKeyChanged(\"focus\")\n )\n .subscribe(({ focus }) => {\n if (focus) {\n setToggle(\"search\", focus)\n el.placeholder = \"\"\n } else {\n el.placeholder = translation(\"search.placeholder\")\n }\n })\n\n /* Handle reset */\n fromEvent(el.form!, \"reset\")\n .pipe(\n takeUntil(done$)\n )\n .subscribe(() => el.focus())\n\n /* Create and return component */\n return watchSearchQuery(el, { tx$, rx$ })\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state })),\n share()\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n bufferCount,\n filter,\n finalize,\n map,\n merge,\n of,\n skipUntil,\n switchMap,\n take,\n tap,\n withLatestFrom,\n zipWith\n} from \"rxjs\"\n\nimport { translation } from \"~/_\"\nimport {\n getElement,\n watchElementBoundary\n} from \"~/browser\"\nimport {\n SearchResult,\n SearchWorker,\n isSearchReadyMessage,\n isSearchResultMessage\n} from \"~/integrations\"\nimport { renderSearchResultItem } from \"~/templates\"\nimport { round } from \"~/utilities\"\n\nimport { Component } from \"../../_\"\nimport { SearchQuery } from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n query$: Observable /* Search query observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search result list\n *\n * This function performs a lazy rendering of the search results, depending on\n * the vertical offset of the search result container.\n *\n * @param el - Search result list element\n * @param worker - Search worker\n * @param options - Options\n *\n * @returns Search result list component observable\n */\nexport function mountSearchResult(\n el: HTMLElement, { rx$ }: SearchWorker, { query$ }: MountOptions\n): Observable> {\n const push$ = new Subject()\n const boundary$ = watchElementBoundary(el.parentElement!)\n .pipe(\n filter(Boolean)\n )\n\n /* Retrieve nested components */\n const meta = getElement(\":scope > :first-child\", el)\n const list = getElement(\":scope > :last-child\", el)\n\n /* Wait until search is ready */\n const ready$ = rx$\n .pipe(\n filter(isSearchReadyMessage),\n take(1)\n )\n\n /* Update search result metadata */\n push$\n .pipe(\n withLatestFrom(query$),\n skipUntil(ready$)\n )\n .subscribe(([{ items }, { value }]) => {\n if (value) {\n switch (items.length) {\n\n /* No results */\n case 0:\n meta.textContent = translation(\"search.result.none\")\n break\n\n /* One result */\n case 1:\n meta.textContent = translation(\"search.result.one\")\n break\n\n /* Multiple result */\n default:\n meta.textContent = translation(\n \"search.result.other\",\n round(items.length)\n )\n }\n } else {\n meta.textContent = translation(\"search.result.placeholder\")\n }\n })\n\n /* Update search result list */\n push$\n .pipe(\n tap(() => list.innerHTML = \"\"),\n switchMap(({ items }) => merge(\n of(...items.slice(0, 10)),\n of(...items.slice(10))\n .pipe(\n bufferCount(4),\n zipWith(boundary$),\n switchMap(([chunk]) => chunk)\n )\n ))\n )\n .subscribe(result => list.appendChild(\n renderSearchResultItem(result)\n ))\n\n /* Filter search result message */\n const result$ = rx$\n .pipe(\n filter(isSearchResultMessage),\n map(({ data }) => data)\n )\n\n /* Create and return component */\n return result$\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n finalize,\n fromEvent,\n map,\n tap\n} from \"rxjs\"\n\nimport { getLocation } from \"~/browser\"\n\nimport { Component } from \"../../_\"\nimport { SearchQuery } from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search sharing\n */\nexport interface SearchShare {\n url: URL /* Deep link for sharing */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n query$: Observable /* Search query observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n query$: Observable /* Search query observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search sharing\n *\n * @param _el - Search sharing element\n * @param options - Options\n *\n * @returns Search sharing observable\n */\nexport function watchSearchShare(\n _el: HTMLElement, { query$ }: WatchOptions\n): Observable {\n return query$\n .pipe(\n map(({ value }) => {\n const url = getLocation()\n url.hash = \"\"\n url.searchParams.delete(\"h\")\n url.searchParams.set(\"q\", value)\n return { url }\n })\n )\n}\n\n/**\n * Mount search sharing\n *\n * @param el - Search sharing element\n * @param options - Options\n *\n * @returns Search sharing component observable\n */\nexport function mountSearchShare(\n el: HTMLAnchorElement, options: MountOptions\n): Observable> {\n const push$ = new Subject()\n push$.subscribe(({ url }) => {\n el.setAttribute(\"data-clipboard-text\", el.href)\n el.href = `${url}`\n })\n\n /* Prevent following of link */\n fromEvent(el, \"click\")\n .subscribe(ev => ev.preventDefault())\n\n /* Create and return component */\n return watchSearchShare(el, options)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n asyncScheduler,\n combineLatestWith,\n distinctUntilChanged,\n filter,\n finalize,\n fromEvent,\n map,\n merge,\n observeOn,\n tap\n} from \"rxjs\"\n\nimport { Keyboard } from \"~/browser\"\nimport {\n SearchResult,\n SearchWorker,\n isSearchResultMessage\n} from \"~/integrations\"\n\nimport { Component, getComponentElement } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search suggestions\n */\nexport interface SearchSuggest {}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n keyboard$: Observable /* Keyboard observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search suggestions\n *\n * This function will perform a lazy rendering of the search results, depending\n * on the vertical offset of the search result container.\n *\n * @param el - Search result list element\n * @param worker - Search worker\n * @param options - Options\n *\n * @returns Search result list component observable\n */\nexport function mountSearchSuggest(\n el: HTMLElement, { rx$ }: SearchWorker, { keyboard$ }: MountOptions\n): Observable> {\n const push$ = new Subject()\n\n /* Retrieve query component and track all changes */\n const query = getComponentElement(\"search-query\")\n const query$ = merge(\n fromEvent(query, \"keydown\"),\n fromEvent(query, \"focus\")\n )\n .pipe(\n observeOn(asyncScheduler),\n map(() => query.value),\n distinctUntilChanged(),\n )\n\n /* Update search suggestions */\n push$\n .pipe(\n combineLatestWith(query$),\n map(([{ suggestions }, value]) => {\n const words = value.split(/([\\s-]+)/)\n if (suggestions?.length && words[words.length - 1]) {\n const last = suggestions[suggestions.length - 1]\n if (last.startsWith(words[words.length - 1]))\n words[words.length - 1] = last\n } else {\n words.length = 0\n }\n return words\n })\n )\n .subscribe(words => el.innerHTML = words\n .join(\"\")\n .replace(/\\s/g, \" \")\n )\n\n /* Set up search keyboard handlers */\n keyboard$\n .pipe(\n filter(({ mode }) => mode === \"search\")\n )\n .subscribe(key => {\n switch (key.type) {\n\n /* Right arrow: accept current suggestion */\n case \"ArrowRight\":\n if (\n el.innerText.length &&\n query.selectionStart === query.value.length\n )\n query.value = el.innerText\n break\n }\n })\n\n /* Filter search result message */\n const result$ = rx$\n .pipe(\n filter(isSearchResultMessage),\n map(({ data }) => data)\n )\n\n /* Create and return component */\n return result$\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(() => ({ ref: el }))\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n NEVER,\n Observable,\n ObservableInput,\n filter,\n merge,\n mergeWith,\n sample,\n take\n} from \"rxjs\"\n\nimport { configuration } from \"~/_\"\nimport {\n Keyboard,\n getActiveElement,\n getElements,\n setToggle\n} from \"~/browser\"\nimport {\n SearchIndex,\n SearchResult,\n isSearchQueryMessage,\n isSearchReadyMessage,\n setupSearchWorker\n} from \"~/integrations\"\n\nimport {\n Component,\n getComponentElement,\n getComponentElements\n} from \"../../_\"\nimport {\n SearchQuery,\n mountSearchQuery\n} from \"../query\"\nimport { mountSearchResult } from \"../result\"\nimport {\n SearchShare,\n mountSearchShare\n} from \"../share\"\nimport {\n SearchSuggest,\n mountSearchSuggest\n} from \"../suggest\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search\n */\nexport type Search =\n | SearchQuery\n | SearchResult\n | SearchShare\n | SearchSuggest\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n index$: ObservableInput /* Search index observable */\n keyboard$: Observable /* Keyboard observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search\n *\n * This function sets up the search functionality, including the underlying\n * web worker and all keyboard bindings.\n *\n * @param el - Search element\n * @param options - Options\n *\n * @returns Search component observable\n */\nexport function mountSearch(\n el: HTMLElement, { index$, keyboard$ }: MountOptions\n): Observable> {\n const config = configuration()\n try {\n const url = __search?.worker || config.search\n const worker = setupSearchWorker(url, index$)\n\n /* Retrieve query and result components */\n const query = getComponentElement(\"search-query\", el)\n const result = getComponentElement(\"search-result\", el)\n\n /* Re-emit query when search is ready */\n const { tx$, rx$ } = worker\n tx$\n .pipe(\n filter(isSearchQueryMessage),\n sample(rx$.pipe(filter(isSearchReadyMessage))),\n take(1)\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Set up search keyboard handlers */\n keyboard$\n .pipe(\n filter(({ mode }) => mode === \"search\")\n )\n .subscribe(key => {\n const active = getActiveElement()\n switch (key.type) {\n\n /* Enter: go to first (best) result */\n case \"Enter\":\n if (active === query) {\n const anchors = new Map()\n for (const anchor of getElements(\n \":first-child [href]\", result\n )) {\n const article = anchor.firstElementChild!\n anchors.set(anchor, parseFloat(\n article.getAttribute(\"data-md-score\")!\n ))\n }\n\n /* Go to result with highest score, if any */\n if (anchors.size) {\n const [[best]] = [...anchors].sort(([, a], [, b]) => b - a)\n best.click()\n }\n\n /* Otherwise omit form submission */\n key.claim()\n }\n break\n\n /* Escape or Tab: close search */\n case \"Escape\":\n case \"Tab\":\n setToggle(\"search\", false)\n query.blur()\n break\n\n /* Vertical arrows: select previous or next search result */\n case \"ArrowUp\":\n case \"ArrowDown\":\n if (typeof active === \"undefined\") {\n query.focus()\n } else {\n const els = [query, ...getElements(\n \":not(details) > [href], summary, details[open] [href]\",\n result\n )]\n const i = Math.max(0, (\n Math.max(0, els.indexOf(active)) + els.length + (\n key.type === \"ArrowUp\" ? -1 : +1\n )\n ) % els.length)\n els[i].focus()\n }\n\n /* Prevent scrolling of page */\n key.claim()\n break\n\n /* All other keys: hand to search query */\n default:\n if (query !== getActiveElement())\n query.focus()\n }\n })\n\n /* Set up global keyboard handlers */\n keyboard$\n .pipe(\n filter(({ mode }) => mode === \"global\"),\n )\n .subscribe(key => {\n switch (key.type) {\n\n /* Open search and select query */\n case \"f\":\n case \"s\":\n case \"/\":\n query.focus()\n query.select()\n\n /* Prevent scrolling of page */\n key.claim()\n break\n }\n })\n\n /* Create and return component */\n const query$ = mountSearchQuery(query, worker)\n const result$ = mountSearchResult(result, worker, { query$ })\n return merge(query$, result$)\n .pipe(\n mergeWith(\n\n /* Search sharing */\n ...getComponentElements(\"search-share\", el)\n .map(child => mountSearchShare(child, { query$ })),\n\n /* Search suggestions */\n ...getComponentElements(\"search-suggest\", el)\n .map(child => mountSearchSuggest(child, worker, { keyboard$ }))\n )\n )\n\n /* Gracefully handle broken search */\n } catch (err) {\n el.hidden = true\n return NEVER\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n ObservableInput,\n combineLatest,\n filter,\n map,\n startWith\n} from \"rxjs\"\n\nimport { getLocation } from \"~/browser\"\nimport {\n SearchIndex,\n setupSearchHighlighter\n} from \"~/integrations\"\nimport { h } from \"~/utilities\"\n\nimport { Component } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search highlighting\n */\nexport interface SearchHighlight {\n nodes: Map /* Map of replacements */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n index$: ObservableInput /* Search index observable */\n location$: Observable /* Location observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search highlighting\n *\n * @param el - Content element\n * @param options - Options\n *\n * @returns Search highlighting component observable\n */\nexport function mountSearchHiglight(\n el: HTMLElement, { index$, location$ }: MountOptions\n): Observable> {\n return combineLatest([\n index$,\n location$\n .pipe(\n startWith(getLocation()),\n filter(url => !!url.searchParams.get(\"h\"))\n )\n ])\n .pipe(\n map(([index, url]) => setupSearchHighlighter(index.config, true)(\n url.searchParams.get(\"h\")!\n )),\n map(fn => {\n const nodes = new Map()\n\n /* Traverse text nodes and collect matches */\n const it = document.createNodeIterator(el, NodeFilter.SHOW_TEXT)\n for (let node = it.nextNode(); node; node = it.nextNode()) {\n if (node.parentElement?.offsetHeight) {\n const original = node.textContent!\n const replaced = fn(original)\n if (replaced.length > original.length)\n nodes.set(node as ChildNode, replaced)\n }\n }\n\n /* Replace original nodes with matches */\n for (const [node, text] of nodes) {\n const { childNodes } = h(\"span\", null, text)\n node.replaceWith(...Array.from(childNodes))\n }\n\n /* Return component */\n return { ref: el, nodes }\n })\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n animationFrameScheduler,\n auditTime,\n combineLatest,\n defer,\n distinctUntilChanged,\n finalize,\n map,\n tap,\n withLatestFrom\n} from \"rxjs\"\n\nimport {\n Viewport,\n getElement,\n getElementOffset\n} from \"~/browser\"\n\nimport { Component } from \"../_\"\nimport { Header } from \"../header\"\nimport { Main } from \"../main\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Sidebar\n */\nexport interface Sidebar {\n height: number /* Sidebar height */\n locked: boolean /* Sidebar is locked */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n main$: Observable
    /* Main area observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n main$: Observable
    /* Main area observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch sidebar\n *\n * This function returns an observable that computes the visual parameters of\n * the sidebar which depends on the vertical viewport offset, as well as the\n * height of the main area. When the page is scrolled beyond the header, the\n * sidebar is locked and fills the remaining space.\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @returns Sidebar observable\n */\nexport function watchSidebar(\n el: HTMLElement, { viewport$, main$ }: WatchOptions\n): Observable {\n const parent = el.parentElement!\n const adjust =\n parent.offsetTop -\n parent.parentElement!.offsetTop\n\n /* Compute the sidebar's available height and if it should be locked */\n return combineLatest([main$, viewport$])\n .pipe(\n map(([{ offset, height }, { offset: { y } }]) => {\n height = height\n + Math.min(adjust, Math.max(0, y - offset))\n - adjust\n return {\n height,\n locked: y >= offset + adjust\n }\n }),\n distinctUntilChanged((a, b) => (\n a.height === b.height &&\n a.locked === b.locked\n ))\n )\n}\n\n/**\n * Mount sidebar\n *\n * This function doesn't set the height of the actual sidebar, but of its first\n * child \u2013 the `.md-sidebar__scrollwrap` element in order to mitigiate jittery\n * sidebars when the footer is scrolled into view. At some point we switched\n * from `absolute` / `fixed` positioning to `sticky` positioning, significantly\n * reducing jitter in some browsers (respectively Firefox and Safari) when\n * scrolling from the top. However, top-aligned sticky positioning means that\n * the sidebar snaps to the bottom when the end of the container is reached.\n * This is what leads to the mentioned jitter, as the sidebar's height may be\n * updated too slowly.\n *\n * This behaviour can be mitigiated by setting the height of the sidebar to `0`\n * while preserving the padding, and the height on its first element.\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @returns Sidebar component observable\n */\nexport function mountSidebar(\n el: HTMLElement, { header$, ...options }: MountOptions\n): Observable> {\n const inner = getElement(\".md-sidebar__scrollwrap\", el)\n const { y } = getElementOffset(inner)\n return defer(() => {\n const push$ = new Subject()\n push$\n .pipe(\n auditTime(0, animationFrameScheduler),\n withLatestFrom(header$)\n )\n .subscribe({\n\n /* Handle emission */\n next([{ height }, { height: offset }]) {\n inner.style.height = `${height - 2 * y}px`\n el.style.top = `${offset}px`\n },\n\n /* Handle complete */\n complete() {\n inner.style.height = \"\"\n el.style.top = \"\"\n }\n })\n\n /* Create and return component */\n return watchSidebar(el, options)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Repo, User } from \"github-types\"\nimport {\n EMPTY,\n Observable,\n catchError,\n defaultIfEmpty,\n map,\n zip\n} from \"rxjs\"\n\nimport { requestJSON } from \"~/browser\"\n\nimport { SourceFacts } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * GitHub release (partial)\n */\ninterface Release {\n tag_name: string /* Tag name */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitHub repository facts\n *\n * @param user - GitHub user or organization\n * @param repo - GitHub repository\n *\n * @returns Repository facts observable\n */\nexport function fetchSourceFactsFromGitHub(\n user: string, repo?: string\n): Observable {\n if (typeof repo !== \"undefined\") {\n const url = `https://api.github.com/repos/${user}/${repo}`\n return zip(\n\n /* Fetch version */\n requestJSON(`${url}/releases/latest`)\n .pipe(\n catchError(() => EMPTY), // @todo refactor instant loading\n map(release => ({\n version: release.tag_name\n })),\n defaultIfEmpty({})\n ),\n\n /* Fetch stars and forks */\n requestJSON(url)\n .pipe(\n catchError(() => EMPTY), // @todo refactor instant loading\n map(info => ({\n stars: info.stargazers_count,\n forks: info.forks_count\n })),\n defaultIfEmpty({})\n )\n )\n .pipe(\n map(([release, info]) => ({ ...release, ...info }))\n )\n\n /* User or organization */\n } else {\n const url = `https://api.github.com/users/${user}`\n return requestJSON(url)\n .pipe(\n map(info => ({\n repositories: info.public_repos\n })),\n defaultIfEmpty({})\n )\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ProjectSchema } from \"gitlab\"\nimport {\n EMPTY,\n Observable,\n catchError,\n defaultIfEmpty,\n map\n} from \"rxjs\"\n\nimport { requestJSON } from \"~/browser\"\n\nimport { SourceFacts } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitLab repository facts\n *\n * @param base - GitLab base\n * @param project - GitLab project\n *\n * @returns Repository facts observable\n */\nexport function fetchSourceFactsFromGitLab(\n base: string, project: string\n): Observable {\n const url = `https://${base}/api/v4/projects/${encodeURIComponent(project)}`\n return requestJSON(url)\n .pipe(\n catchError(() => EMPTY), // @todo refactor instant loading\n map(({ star_count, forks_count }) => ({\n stars: star_count,\n forks: forks_count\n })),\n defaultIfEmpty({})\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { EMPTY, Observable } from \"rxjs\"\n\nimport { fetchSourceFactsFromGitHub } from \"../github\"\nimport { fetchSourceFactsFromGitLab } from \"../gitlab\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Repository facts for repositories\n */\nexport interface RepositoryFacts {\n stars?: number /* Number of stars */\n forks?: number /* Number of forks */\n version?: string /* Latest version */\n}\n\n/**\n * Repository facts for organizations\n */\nexport interface OrganizationFacts {\n repositories?: number /* Number of repositories */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Repository facts\n */\nexport type SourceFacts =\n | RepositoryFacts\n | OrganizationFacts\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch repository facts\n *\n * @param url - Repository URL\n *\n * @returns Repository facts observable\n */\nexport function fetchSourceFacts(\n url: string\n): Observable {\n const [type] = url.match(/(git(?:hub|lab))/i) || []\n switch (type.toLowerCase()) {\n\n /* GitHub repository */\n case \"github\":\n const [, user, repo] = url.match(/^.+github\\.com\\/([^/]+)\\/?([^/]+)?/i)!\n return fetchSourceFactsFromGitHub(user, repo)\n\n /* GitLab repository */\n case \"gitlab\":\n const [, base, slug] = url.match(/^.+?([^/]*gitlab[^/]+)\\/(.+?)\\/?$/i)!\n return fetchSourceFactsFromGitLab(base, slug)\n\n /* Everything else */\n default:\n return EMPTY\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n EMPTY,\n Observable,\n Subject,\n catchError,\n defer,\n filter,\n finalize,\n map,\n of,\n shareReplay,\n tap\n} from \"rxjs\"\n\nimport { getElement } from \"~/browser\"\nimport { renderSourceFacts } from \"~/templates\"\n\nimport { Component } from \"../../_\"\nimport {\n SourceFacts,\n fetchSourceFacts\n} from \"../facts\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Repository information\n */\nexport interface Source {\n facts: SourceFacts /* Repository facts */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Repository information observable\n */\nlet fetch$: Observable\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch repository information\n *\n * This function tries to read the repository facts from session storage, and\n * if unsuccessful, fetches them from the underlying provider.\n *\n * @param el - Repository information element\n *\n * @returns Repository information observable\n */\nexport function watchSource(\n el: HTMLAnchorElement\n): Observable {\n return fetch$ ||= defer(() => {\n const cached = __md_get(\"__source\", sessionStorage)\n if (cached)\n return of(cached)\n else\n return fetchSourceFacts(el.href)\n .pipe(\n tap(facts => __md_set(\"__source\", facts, sessionStorage))\n )\n })\n .pipe(\n catchError(() => EMPTY),\n filter(facts => Object.keys(facts).length > 0),\n map(facts => ({ facts })),\n shareReplay(1)\n )\n}\n\n/**\n * Mount repository information\n *\n * @param el - Repository information element\n *\n * @returns Repository information component observable\n */\nexport function mountSource(\n el: HTMLAnchorElement\n): Observable> {\n const inner = getElement(\":scope > :last-child\", el)\n return defer(() => {\n const push$ = new Subject()\n push$.subscribe(({ facts }) => {\n inner.appendChild(renderSourceFacts(facts))\n inner.classList.add(\"md-source__repository--active\")\n })\n\n /* Create and return component */\n return watchSource(el)\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n defer,\n distinctUntilKeyChanged,\n finalize,\n map,\n of,\n switchMap,\n tap\n} from \"rxjs\"\n\nimport { feature } from \"~/_\"\nimport {\n Viewport,\n watchElementSize,\n watchViewportAt\n} from \"~/browser\"\n\nimport { Component } from \"../_\"\nimport { Header } from \"../header\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Navigation tabs\n */\nexport interface Tabs {\n hidden: boolean /* Navigation tabs are hidden */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch navigation tabs\n *\n * @param el - Navigation tabs element\n * @param options - Options\n *\n * @returns Navigation tabs observable\n */\nexport function watchTabs(\n el: HTMLElement, { viewport$, header$ }: WatchOptions\n): Observable {\n return watchElementSize(document.body)\n .pipe(\n switchMap(() => watchViewportAt(el, { header$, viewport$ })),\n map(({ offset: { y } }) => {\n return {\n hidden: y >= 10\n }\n }),\n distinctUntilKeyChanged(\"hidden\")\n )\n}\n\n/**\n * Mount navigation tabs\n *\n * This function hides the navigation tabs when scrolling past the threshold\n * and makes them reappear in a nice CSS animation when scrolling back up.\n *\n * @param el - Navigation tabs element\n * @param options - Options\n *\n * @returns Navigation tabs component observable\n */\nexport function mountTabs(\n el: HTMLElement, options: MountOptions\n): Observable> {\n return defer(() => {\n const push$ = new Subject()\n push$.subscribe({\n\n /* Handle emission */\n next({ hidden }) {\n el.hidden = hidden\n },\n\n /* Handle complete */\n complete() {\n el.hidden = false\n }\n })\n\n /* Create and return component */\n return (\n feature(\"navigation.tabs.sticky\")\n ? of({ hidden: false })\n : watchTabs(el, options)\n )\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n bufferCount,\n combineLatestWith,\n debounceTime,\n defer,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n finalize,\n map,\n of,\n repeat,\n scan,\n share,\n skip,\n startWith,\n switchMap,\n takeLast,\n takeUntil,\n tap,\n withLatestFrom\n} from \"rxjs\"\n\nimport { feature } from \"~/_\"\nimport {\n Viewport,\n getElement,\n getElements,\n getLocation,\n getOptionalElement,\n watchElementSize\n} from \"~/browser\"\n\nimport {\n Component,\n getComponentElement\n} from \"../_\"\nimport { Header } from \"../header\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Table of contents\n */\nexport interface TableOfContents {\n prev: HTMLAnchorElement[][] /* Anchors (previous) */\n next: HTMLAnchorElement[][] /* Anchors (next) */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n target$: Observable /* Location target observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch table of contents\n *\n * This is effectively a scroll spy implementation which will account for the\n * fixed header and automatically re-calculate anchor offsets when the viewport\n * is resized. The returned observable will only emit if the table of contents\n * needs to be repainted.\n *\n * This implementation tracks an anchor element's entire path starting from its\n * level up to the top-most anchor element, e.g. `[h3, h2, h1]`. Although the\n * Material theme currently doesn't make use of this information, it enables\n * the styling of the entire hierarchy through customization.\n *\n * Note that the current anchor is the last item of the `prev` anchor list.\n *\n * @param el - Table of contents element\n * @param options - Options\n *\n * @returns Table of contents observable\n */\nexport function watchTableOfContents(\n el: HTMLElement, { viewport$, header$ }: WatchOptions\n): Observable {\n const table = new Map()\n\n /* Compute anchor-to-target mapping */\n const anchors = getElements(\"[href^=\\\\#]\", el)\n for (const anchor of anchors) {\n const id = decodeURIComponent(anchor.hash.substring(1))\n const target = getOptionalElement(`[id=\"${id}\"]`)\n if (typeof target !== \"undefined\")\n table.set(anchor, target)\n }\n\n /* Compute necessary adjustment for header */\n const adjust$ = header$\n .pipe(\n distinctUntilKeyChanged(\"height\"),\n map(({ height }) => {\n const main = getComponentElement(\"main\")\n const grid = getElement(\":scope > :first-child\", main)\n return height + 0.8 * (\n grid.offsetTop -\n main.offsetTop\n )\n }),\n share()\n )\n\n /* Compute partition of previous and next anchors */\n const partition$ = watchElementSize(document.body)\n .pipe(\n distinctUntilKeyChanged(\"height\"),\n\n /* Build index to map anchor paths to vertical offsets */\n switchMap(body => defer(() => {\n let path: HTMLAnchorElement[] = []\n return of([...table].reduce((index, [anchor, target]) => {\n while (path.length) {\n const last = table.get(path[path.length - 1])!\n if (last.tagName >= target.tagName) {\n path.pop()\n } else {\n break\n }\n }\n\n /* If the current anchor is hidden, continue with its parent */\n let offset = target.offsetTop\n while (!offset && target.parentElement) {\n target = target.parentElement\n offset = target.offsetTop\n }\n\n /* Map reversed anchor path to vertical offset */\n return index.set(\n [...path = [...path, anchor]].reverse(),\n offset\n )\n }, new Map()))\n })\n .pipe(\n\n /* Sort index by vertical offset (see https://bit.ly/30z6QSO) */\n map(index => new Map([...index].sort(([, a], [, b]) => a - b))),\n combineLatestWith(adjust$),\n\n /* Re-compute partition when viewport offset changes */\n switchMap(([index, adjust]) => viewport$\n .pipe(\n scan(([prev, next], { offset: { y }, size }) => {\n const last = y + size.height >= Math.floor(body.height)\n\n /* Look forward */\n while (next.length) {\n const [, offset] = next[0]\n if (offset - adjust < y || last) {\n prev = [...prev, next.shift()!]\n } else {\n break\n }\n }\n\n /* Look backward */\n while (prev.length) {\n const [, offset] = prev[prev.length - 1]\n if (offset - adjust >= y && !last) {\n next = [prev.pop()!, ...next]\n } else {\n break\n }\n }\n\n /* Return partition */\n return [prev, next]\n }, [[], [...index]]),\n distinctUntilChanged((a, b) => (\n a[0] === b[0] &&\n a[1] === b[1]\n ))\n )\n )\n )\n )\n )\n\n /* Compute and return anchor list migrations */\n return partition$\n .pipe(\n map(([prev, next]) => ({\n prev: prev.map(([path]) => path),\n next: next.map(([path]) => path)\n })),\n\n /* Extract anchor list migrations */\n startWith({ prev: [], next: [] }),\n bufferCount(2, 1),\n map(([a, b]) => {\n\n /* Moving down */\n if (a.prev.length < b.prev.length) {\n return {\n prev: b.prev.slice(Math.max(0, a.prev.length - 1), b.prev.length),\n next: []\n }\n\n /* Moving up */\n } else {\n return {\n prev: b.prev.slice(-1),\n next: b.next.slice(0, b.next.length - a.next.length)\n }\n }\n })\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Mount table of contents\n *\n * @param el - Table of contents element\n * @param options - Options\n *\n * @returns Table of contents component observable\n */\nexport function mountTableOfContents(\n el: HTMLElement, { viewport$, header$, target$ }: MountOptions\n): Observable> {\n return defer(() => {\n const push$ = new Subject()\n const done$ = push$.pipe(takeLast(1))\n push$.subscribe(({ prev, next }) => {\n\n /* Look forward */\n for (const [anchor] of next) {\n anchor.classList.remove(\"md-nav__link--passed\")\n anchor.classList.remove(\"md-nav__link--active\")\n }\n\n /* Look backward */\n for (const [index, [anchor]] of prev.entries()) {\n anchor.classList.add(\"md-nav__link--passed\")\n anchor.classList.toggle(\n \"md-nav__link--active\",\n index === prev.length - 1\n )\n }\n })\n\n /* Set up anchor tracking, if enabled */\n if (feature(\"navigation.tracking\"))\n viewport$\n .pipe(\n takeUntil(done$),\n distinctUntilKeyChanged(\"offset\"),\n debounceTime(250),\n skip(1),\n takeUntil(target$.pipe(skip(1))),\n repeat({ delay: 250 }),\n withLatestFrom(push$)\n )\n .subscribe(([, { prev }]) => {\n const url = getLocation()\n\n /* Set hash fragment to active anchor */\n const anchor = prev[prev.length - 1]\n if (anchor && anchor.length) {\n const [active] = anchor\n const { hash } = new URL(active.href)\n if (url.hash !== hash) {\n url.hash = hash\n history.replaceState({}, \"\", `${url}`)\n }\n\n /* Reset anchor when at the top */\n } else {\n url.hash = \"\"\n history.replaceState({}, \"\", `${url}`)\n }\n })\n\n /* Create and return component */\n return watchTableOfContents(el, { viewport$, header$ })\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n bufferCount,\n combineLatest,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n endWith,\n finalize,\n map,\n repeat,\n skip,\n takeLast,\n takeUntil,\n tap\n} from \"rxjs\"\n\nimport { Viewport } from \"~/browser\"\n\nimport { Component } from \"../_\"\nimport { Header } from \"../header\"\nimport { Main } from \"../main\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Back-to-top button\n */\nexport interface BackToTop {\n hidden: boolean /* Back-to-top button is hidden */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n main$: Observable
    /* Main area observable */\n target$: Observable /* Location target observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n main$: Observable
    /* Main area observable */\n target$: Observable /* Location target observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch back-to-top\n *\n * @param _el - Back-to-top element\n * @param options - Options\n *\n * @returns Back-to-top observable\n */\nexport function watchBackToTop(\n _el: HTMLElement, { viewport$, main$, target$ }: WatchOptions\n): Observable {\n\n /* Compute direction */\n const direction$ = viewport$\n .pipe(\n map(({ offset: { y } }) => y),\n bufferCount(2, 1),\n map(([a, b]) => a > b && b > 0),\n distinctUntilChanged()\n )\n\n /* Compute whether main area is active */\n const active$ = main$\n .pipe(\n map(({ active }) => active)\n )\n\n /* Compute threshold for hiding */\n return combineLatest([active$, direction$])\n .pipe(\n map(([active, direction]) => !(active && direction)),\n distinctUntilChanged(),\n takeUntil(target$.pipe(skip(1))),\n endWith(true),\n repeat({ delay: 250 }),\n map(hidden => ({ hidden }))\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Mount back-to-top\n *\n * @param el - Back-to-top element\n * @param options - Options\n *\n * @returns Back-to-top component observable\n */\nexport function mountBackToTop(\n el: HTMLElement, { viewport$, header$, main$, target$ }: MountOptions\n): Observable> {\n const push$ = new Subject()\n const done$ = push$.pipe(takeLast(1))\n push$.subscribe({\n\n /* Handle emission */\n next({ hidden }) {\n el.hidden = hidden\n if (hidden) {\n el.setAttribute(\"tabindex\", \"-1\")\n el.blur()\n } else {\n el.removeAttribute(\"tabindex\")\n }\n },\n\n /* Handle complete */\n complete() {\n el.style.top = \"\"\n el.hidden = true\n el.removeAttribute(\"tabindex\")\n }\n })\n\n /* Watch header height */\n header$\n .pipe(\n takeUntil(done$),\n distinctUntilKeyChanged(\"height\")\n )\n .subscribe(({ height }) => {\n el.style.top = `${height + 16}px`\n })\n\n /* Create and return component */\n return watchBackToTop(el, { viewport$, main$, target$ })\n .pipe(\n tap(state => push$.next(state)),\n finalize(() => push$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n fromEvent,\n map,\n mergeMap,\n switchMap,\n takeWhile,\n tap,\n withLatestFrom\n} from \"rxjs\"\n\nimport { getElements } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n tablet$: Observable /* Media tablet observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch indeterminate checkboxes\n *\n * This function replaces the indeterminate \"pseudo state\" with the actual\n * indeterminate state, which is used to keep navigation always expanded.\n *\n * @param options - Options\n */\nexport function patchIndeterminate(\n { document$, tablet$ }: PatchOptions\n): void {\n document$\n .pipe(\n switchMap(() => getElements(\n // @todo `data-md-state` is deprecated and removed in v9\n \".md-toggle--indeterminate, [data-md-state=indeterminate]\"\n )),\n tap(el => {\n el.indeterminate = true\n el.checked = false\n }),\n mergeMap(el => fromEvent(el, \"change\")\n .pipe(\n takeWhile(() => el.classList.contains(\"md-toggle--indeterminate\")),\n map(() => el)\n )\n ),\n withLatestFrom(tablet$)\n )\n .subscribe(([el, tablet]) => {\n el.classList.remove(\"md-toggle--indeterminate\")\n if (tablet)\n el.checked = false\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n filter,\n fromEvent,\n map,\n mergeMap,\n switchMap,\n tap\n} from \"rxjs\"\n\nimport { getElements } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether the given device is an Apple device\n *\n * @returns Test result\n */\nfunction isAppleDevice(): boolean {\n return /(iPad|iPhone|iPod)/.test(navigator.userAgent)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all elements with `data-md-scrollfix` attributes\n *\n * This is a year-old patch which ensures that overflow scrolling works at the\n * top and bottom of containers on iOS by ensuring a `1px` scroll offset upon\n * the start of a touch event.\n *\n * @see https://bit.ly/2SCtAOO - Original source\n *\n * @param options - Options\n */\nexport function patchScrollfix(\n { document$ }: PatchOptions\n): void {\n document$\n .pipe(\n switchMap(() => getElements(\"[data-md-scrollfix]\")),\n tap(el => el.removeAttribute(\"data-md-scrollfix\")),\n filter(isAppleDevice),\n mergeMap(el => fromEvent(el, \"touchstart\")\n .pipe(\n map(() => el)\n )\n )\n )\n .subscribe(el => {\n const top = el.scrollTop\n\n /* We're at the top of the container */\n if (top === 0) {\n el.scrollTop = 1\n\n /* We're at the bottom of the container */\n } else if (top + el.offsetHeight === el.scrollHeight) {\n el.scrollTop = top - 1\n }\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n combineLatest,\n delay,\n map,\n of,\n switchMap,\n withLatestFrom\n} from \"rxjs\"\n\nimport {\n Viewport,\n watchToggle\n} from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n viewport$: Observable /* Viewport observable */\n tablet$: Observable /* Media tablet observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch the document body to lock when search is open\n *\n * For mobile and tablet viewports, the search is rendered full screen, which\n * leads to scroll leaking when at the top or bottom of the search result. This\n * function locks the body when the search is in full screen mode, and restores\n * the scroll position when leaving.\n *\n * @param options - Options\n */\nexport function patchScrolllock(\n { viewport$, tablet$ }: PatchOptions\n): void {\n combineLatest([watchToggle(\"search\"), tablet$])\n .pipe(\n map(([active, tablet]) => active && !tablet),\n switchMap(active => of(active)\n .pipe(\n delay(active ? 400 : 100)\n )\n ),\n withLatestFrom(viewport$)\n )\n .subscribe(([active, { offset: { y }}]) => {\n if (active) {\n document.body.setAttribute(\"data-md-scrolllock\", \"\")\n document.body.style.top = `-${y}px`\n } else {\n const value = -1 * parseInt(document.body.style.top, 10)\n document.body.removeAttribute(\"data-md-scrolllock\")\n document.body.style.top = \"\"\n if (value)\n window.scrollTo(0, value)\n }\n })\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Polyfills\n * ------------------------------------------------------------------------- */\n\n/* Polyfill `Object.entries` */\nif (!Object.entries)\n Object.entries = function (obj: object) {\n const data: [string, string][] = []\n for (const key of Object.keys(obj))\n // @ts-expect-error - ignore property access warning\n data.push([key, obj[key]])\n\n /* Return entries */\n return data\n }\n\n/* Polyfill `Object.values` */\nif (!Object.values)\n Object.values = function (obj: object) {\n const data: string[] = []\n for (const key of Object.keys(obj))\n // @ts-expect-error - ignore property access warning\n data.push(obj[key])\n\n /* Return values */\n return data\n }\n\n/* ------------------------------------------------------------------------- */\n\n/* Polyfills for `Element` */\nif (typeof Element !== \"undefined\") {\n\n /* Polyfill `Element.scrollTo` */\n if (!Element.prototype.scrollTo)\n Element.prototype.scrollTo = function (\n x?: ScrollToOptions | number, y?: number\n ): void {\n if (typeof x === \"object\") {\n this.scrollLeft = x.left!\n this.scrollTop = x.top!\n } else {\n this.scrollLeft = x!\n this.scrollTop = y!\n }\n }\n\n /* Polyfill `Element.replaceWith` */\n if (!Element.prototype.replaceWith)\n Element.prototype.replaceWith = function (\n ...nodes: Array\n ): void {\n const parent = this.parentNode\n if (parent) {\n if (nodes.length === 0)\n parent.removeChild(this)\n\n /* Replace children and create text nodes */\n for (let i = nodes.length - 1; i >= 0; i--) {\n let node = nodes[i]\n if (typeof node !== \"object\")\n node = document.createTextNode(node)\n else if 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+ "names": [] +} diff --git a/assets/javascripts/lunr/min/lunr.ar.min.js b/assets/javascripts/lunr/min/lunr.ar.min.js new file mode 100644 index 00000000..248ddc5d --- /dev/null +++ b/assets/javascripts/lunr/min/lunr.ar.min.js @@ -0,0 +1 @@ +!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. 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nu når og også om op os over på selv sig sin sine sit skal skulle som sådan thi til ud under var vi vil ville vor være været".split(" ")),e.Pipeline.registerFunction(e.da.stopWordFilter,"stopWordFilter-da")}}); \ No newline at end of file diff --git a/assets/javascripts/lunr/min/lunr.de.min.js b/assets/javascripts/lunr/min/lunr.de.min.js new file mode 100644 index 00000000..f3b5c108 --- /dev/null +++ b/assets/javascripts/lunr/min/lunr.de.min.js @@ -0,0 +1,18 @@ +/*! + * Lunr languages, `German` language + * https://github.com/MihaiValentin/lunr-languages + * + * Copyright 2014, Mihai Valentin + * http://www.mozilla.org/MPL/ + */ +/*! + * based on + * Snowball JavaScript Library v0.3 + * http://code.google.com/p/urim/ + * http://snowball.tartarus.org/ + * + * Copyright 2010, Oleg Mazko + * http://www.mozilla.org/MPL/ + */ + +!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. 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andere anderem anderen anderer anderes anderm andern anderr anders auch auf aus bei bin bis bist da damit dann das dasselbe dazu daß dein deine deinem deinen deiner deines dem demselben den denn denselben der derer derselbe derselben des desselben dessen dich die dies diese dieselbe dieselben diesem diesen dieser dieses dir doch dort du durch ein eine einem einen einer eines einig einige einigem einigen einiger einiges einmal er es etwas euch euer eure eurem euren eurer eures für gegen gewesen hab habe haben hat hatte hatten hier hin hinter ich ihm ihn ihnen ihr ihre ihrem ihren ihrer ihres im in indem ins ist jede jedem jeden jeder jedes jene jenem jenen jener jenes jetzt kann kein keine keinem keinen keiner keines können könnte machen man manche manchem manchen mancher manches mein meine meinem meinen meiner meines mich mir mit muss musste nach nicht nichts noch nun nur ob oder ohne sehr sein seine seinem seinen seiner seines selbst sich sie sind so solche solchem solchen solcher solches soll sollte sondern sonst um und uns unse unsem unsen unser unses unter viel vom von vor war waren warst was weg weil weiter welche welchem welchen welcher welches wenn werde werden wie wieder will wir wird wirst wo wollen wollte während würde würden zu zum zur zwar zwischen über".split(" ")),e.Pipeline.registerFunction(e.de.stopWordFilter,"stopWordFilter-de")}}); \ No newline at end of file diff --git a/assets/javascripts/lunr/min/lunr.du.min.js b/assets/javascripts/lunr/min/lunr.du.min.js new file mode 100644 index 00000000..49a0f3f0 --- /dev/null +++ b/assets/javascripts/lunr/min/lunr.du.min.js @@ -0,0 +1,18 @@ +/*! + * Lunr languages, `Dutch` language + * https://github.com/MihaiValentin/lunr-languages + * + * Copyright 2014, Mihai Valentin + * http://www.mozilla.org/MPL/ + */ +/*! + * based on + * Snowball JavaScript Library v0.3 + * http://code.google.com/p/urim/ + * http://snowball.tartarus.org/ + * + * Copyright 2010, Oleg Mazko + * http://www.mozilla.org/MPL/ + */ + 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00000000..29f5dfce --- /dev/null +++ b/assets/javascripts/lunr/min/lunr.fi.min.js @@ -0,0 +1,18 @@ +/*! + * Lunr languages, `Finnish` language + * https://github.com/MihaiValentin/lunr-languages + * + * Copyright 2014, Mihai Valentin + * http://www.mozilla.org/MPL/ + */ +/*! + * based on + * Snowball JavaScript Library v0.3 + * http://code.google.com/p/urim/ + * http://snowball.tartarus.org/ + * + * Copyright 2010, Oleg Mazko + * http://www.mozilla.org/MPL/ + */ + +!function(i,e){"function"==typeof define&&define.amd?define(e):"object"==typeof exports?module.exports=e():e()(i.lunr)}(this,function(){return function(i){if(void 0===i)throw new Error("Lunr is not present. 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i;this.setCurrent=function(r){C.setCurrent(r)},this.getCurrent=function(){return C.getCurrent()},this.stem=function(){var e=C.cursor;return r(),C.cursor=e,o(),C.limit_backward=e,C.cursor=C.limit,f(),C.cursor=C.limit_backward,s(),!0}};return function(r){return"function"==typeof r.update?r.update(function(r){return n.setCurrent(r),n.stem(),n.getCurrent()}):(n.setCurrent(r),n.stem(),n.getCurrent())}}(),r.Pipeline.registerFunction(r.nl.stemmer,"stemmer-nl"),r.nl.stopWordFilter=r.generateStopWordFilter(" aan al alles als altijd andere ben bij daar dan dat de der deze die dit doch doen door dus een eens en er ge geen geweest haar had heb hebben heeft hem het hier hij hoe hun iemand iets ik in is ja je kan kon kunnen maar me meer men met mij mijn moet na naar niet niets nog nu of om omdat onder ons ook op over reeds te tegen toch toen tot u uit uw van veel voor want waren was wat werd wezen wie wil worden wordt zal ze zelf zich zij zijn zo zonder zou".split(" ")),r.Pipeline.registerFunction(r.nl.stopWordFilter,"stopWordFilter-nl")}}); \ No newline at end of file diff --git a/assets/javascripts/lunr/min/lunr.no.min.js b/assets/javascripts/lunr/min/lunr.no.min.js new file mode 100644 index 00000000..92bc7e4e --- /dev/null +++ b/assets/javascripts/lunr/min/lunr.no.min.js @@ -0,0 +1,18 @@ +/*! + * Lunr languages, `Norwegian` language + * https://github.com/MihaiValentin/lunr-languages + * + * Copyright 2014, Mihai Valentin + * http://www.mozilla.org/MPL/ + */ +/*! + * based on + * Snowball JavaScript Library v0.3 + * http://code.google.com/p/urim/ + * http://snowball.tartarus.org/ + * + * Copyright 2010, Oleg Mazko + * http://www.mozilla.org/MPL/ + */ + +!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. 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")),e.Pipeline.registerFunction(e.ro.stopWordFilter,"stopWordFilter-ro")}}); \ No newline at end of file diff --git a/assets/javascripts/lunr/min/lunr.ru.min.js b/assets/javascripts/lunr/min/lunr.ru.min.js new file mode 100644 index 00000000..186cc485 --- /dev/null +++ b/assets/javascripts/lunr/min/lunr.ru.min.js @@ -0,0 +1,18 @@ +/*! + * Lunr languages, `Russian` language + * https://github.com/MihaiValentin/lunr-languages + * + * Copyright 2014, Mihai Valentin + * http://www.mozilla.org/MPL/ + */ +/*! + * based on + * Snowball JavaScript Library v0.3 + * http://code.google.com/p/urim/ + * http://snowball.tartarus.org/ + * + * Copyright 2010, Oleg Mazko + * http://www.mozilla.org/MPL/ + */ + +!function(e,n){"function"==typeof define&&define.amd?define(n):"object"==typeof exports?module.exports=n():n()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. 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http://snowball.tartarus.org/ + * + * Copyright 2010, Oleg Mazko + * http://www.mozilla.org/MPL/ + */ + +!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. 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n()&&Dr.find_among_b(ar,2)}function p(){return n()&&Dr.find_among_b(mr,4)}function g(){return n()&&Dr.find_among_b(dr,2)}function y(){return n()&&Dr.find_among_b(fr,4)}function z(){return n()&&Dr.find_among_b(br,2)}function v(){return n()&&Dr.find_among_b(wr,2)&&c()}function h(){return Dr.eq_s_b(2,"ki")}function q(){return n()&&Dr.find_among_b(_r,2)&&o()}function C(){return n()&&Dr.find_among_b(kr,4)&&c()}function P(){return n()&&Dr.find_among_b(pr,4)}function F(){return n()&&Dr.find_among_b(gr,4)&&c()}function S(){return Dr.find_among_b(yr,4)}function W(){return n()&&Dr.find_among_b(zr,2)}function L(){return n()&&Dr.find_among_b(vr,4)}function x(){return n()&&Dr.find_among_b(hr,8)}function A(){return Dr.find_among_b(qr,2)}function E(){return n()&&Dr.find_among_b(Cr,32)&&c()}function j(){return Dr.find_among_b(Pr,8)&&c()}function T(){return n()&&Dr.find_among_b(Fr,4)&&c()}function Z(){return Dr.eq_s_b(3,"ken")&&c()}function B(){var r=Dr.limit-Dr.cursor;return!(T()||(Dr.cursor=Dr.limit-r,E()||(Dr.cursor=Dr.limit-r,j()||(Dr.cursor=Dr.limit-r,Z()))))}function D(){if(A()){var r=Dr.limit-Dr.cursor;if(S()||(Dr.cursor=Dr.limit-r,W()||(Dr.cursor=Dr.limit-r,C()||(Dr.cursor=Dr.limit-r,P()||(Dr.cursor=Dr.limit-r,F()||(Dr.cursor=Dr.limit-r))))),T())return!1}return!0}function G(){if(W()){Dr.bra=Dr.cursor,Dr.slice_del();var r=Dr.limit-Dr.cursor;return Dr.ket=Dr.cursor,x()||(Dr.cursor=Dr.limit-r,E()||(Dr.cursor=Dr.limit-r,j()||(Dr.cursor=Dr.limit-r,T()||(Dr.cursor=Dr.limit-r)))),nr=!1,!1}return!0}function H(){if(!L())return!0;var r=Dr.limit-Dr.cursor;return!E()&&(Dr.cursor=Dr.limit-r,!j())}function I(){var r,i=Dr.limit-Dr.cursor;return!(S()||(Dr.cursor=Dr.limit-i,F()||(Dr.cursor=Dr.limit-i,P()||(Dr.cursor=Dr.limit-i,C()))))||(Dr.bra=Dr.cursor,Dr.slice_del(),r=Dr.limit-Dr.cursor,Dr.ket=Dr.cursor,T()||(Dr.cursor=Dr.limit-r),!1)}function J(){var r,i=Dr.limit-Dr.cursor;if(Dr.ket=Dr.cursor,nr=!0,B()&&(Dr.cursor=Dr.limit-i,D()&&(Dr.cursor=Dr.limit-i,G()&&(Dr.cursor=Dr.limit-i,H()&&(Dr.cursor=Dr.limit-i,I()))))){if(Dr.cursor=Dr.limit-i,!x())return;Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,r=Dr.limit-Dr.cursor,S()||(Dr.cursor=Dr.limit-r,W()||(Dr.cursor=Dr.limit-r,C()||(Dr.cursor=Dr.limit-r,P()||(Dr.cursor=Dr.limit-r,F()||(Dr.cursor=Dr.limit-r))))),T()||(Dr.cursor=Dr.limit-r)}Dr.bra=Dr.cursor,Dr.slice_del()}function K(){var r,i,e,n;if(Dr.ket=Dr.cursor,h()){if(r=Dr.limit-Dr.cursor,p())return Dr.bra=Dr.cursor,Dr.slice_del(),i=Dr.limit-Dr.cursor,Dr.ket=Dr.cursor,W()?(Dr.bra=Dr.cursor,Dr.slice_del(),K()):(Dr.cursor=Dr.limit-i,a()&&(Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,W()&&(Dr.bra=Dr.cursor,Dr.slice_del(),K()))),!0;if(Dr.cursor=Dr.limit-r,w()){if(Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,e=Dr.limit-Dr.cursor,d())Dr.bra=Dr.cursor,Dr.slice_del();else{if(Dr.cursor=Dr.limit-e,Dr.ket=Dr.cursor,!a()&&(Dr.cursor=Dr.limit-e,!m()&&(Dr.cursor=Dr.limit-e,!K())))return!0;Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,W()&&(Dr.bra=Dr.cursor,Dr.slice_del(),K())}return!0}if(Dr.cursor=Dr.limit-r,g()){if(n=Dr.limit-Dr.cursor,d())Dr.bra=Dr.cursor,Dr.slice_del();else if(Dr.cursor=Dr.limit-n,m())Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,W()&&(Dr.bra=Dr.cursor,Dr.slice_del(),K());else if(Dr.cursor=Dr.limit-n,!K())return!1;return!0}}return!1}function M(r){if(Dr.ket=Dr.cursor,!g()&&(Dr.cursor=Dr.limit-r,!k()))return!1;var i=Dr.limit-Dr.cursor;if(d())Dr.bra=Dr.cursor,Dr.slice_del();else if(Dr.cursor=Dr.limit-i,m())Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,W()&&(Dr.bra=Dr.cursor,Dr.slice_del(),K());else if(Dr.cursor=Dr.limit-i,!K())return!1;return!0}function N(r){if(Dr.ket=Dr.cursor,!z()&&(Dr.cursor=Dr.limit-r,!b()))return!1;var i=Dr.limit-Dr.cursor;return!(!m()&&(Dr.cursor=Dr.limit-i,!d()))&&(Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,W()&&(Dr.bra=Dr.cursor,Dr.slice_del(),K()),!0)}function O(){var r,i=Dr.limit-Dr.cursor;return Dr.ket=Dr.cursor,!(!w()&&(Dr.cursor=Dr.limit-i,!v()))&&(Dr.bra=Dr.cursor,Dr.slice_del(),r=Dr.limit-Dr.cursor,Dr.ket=Dr.cursor,!(!W()||(Dr.bra=Dr.cursor,Dr.slice_del(),!K()))||(Dr.cursor=Dr.limit-r,Dr.ket=Dr.cursor,!(a()||(Dr.cursor=Dr.limit-r,m()||(Dr.cursor=Dr.limit-r,K())))||(Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,W()&&(Dr.bra=Dr.cursor,Dr.slice_del(),K()),!0)))}function Q(){var r,i,e=Dr.limit-Dr.cursor;if(Dr.ket=Dr.cursor,!p()&&(Dr.cursor=Dr.limit-e,!f()&&(Dr.cursor=Dr.limit-e,!_())))return!1;if(Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,r=Dr.limit-Dr.cursor,a())Dr.bra=Dr.cursor,Dr.slice_del(),i=Dr.limit-Dr.cursor,Dr.ket=Dr.cursor,W()||(Dr.cursor=Dr.limit-i);else if(Dr.cursor=Dr.limit-r,!W())return!0;return Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,K(),!0}function R(){var r,i,e=Dr.limit-Dr.cursor;if(Dr.ket=Dr.cursor,W())return Dr.bra=Dr.cursor,Dr.slice_del(),void K();if(Dr.cursor=Dr.limit-e,Dr.ket=Dr.cursor,q())if(Dr.bra=Dr.cursor,Dr.slice_del(),r=Dr.limit-Dr.cursor,Dr.ket=Dr.cursor,d())Dr.bra=Dr.cursor,Dr.slice_del();else{if(Dr.cursor=Dr.limit-r,Dr.ket=Dr.cursor,!a()&&(Dr.cursor=Dr.limit-r,!m())){if(Dr.cursor=Dr.limit-r,Dr.ket=Dr.cursor,!W())return;if(Dr.bra=Dr.cursor,Dr.slice_del(),!K())return}Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,W()&&(Dr.bra=Dr.cursor,Dr.slice_del(),K())}else if(Dr.cursor=Dr.limit-e,!M(e)&&(Dr.cursor=Dr.limit-e,!N(e))){if(Dr.cursor=Dr.limit-e,Dr.ket=Dr.cursor,y())return Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,i=Dr.limit-Dr.cursor,void(a()?(Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,W()&&(Dr.bra=Dr.cursor,Dr.slice_del(),K())):(Dr.cursor=Dr.limit-i,W()?(Dr.bra=Dr.cursor,Dr.slice_del(),K()):(Dr.cursor=Dr.limit-i,K())));if(Dr.cursor=Dr.limit-e,!O()){if(Dr.cursor=Dr.limit-e,d())return Dr.bra=Dr.cursor,void Dr.slice_del();Dr.cursor=Dr.limit-e,K()||(Dr.cursor=Dr.limit-e,Q()||(Dr.cursor=Dr.limit-e,Dr.ket=Dr.cursor,(a()||(Dr.cursor=Dr.limit-e,m()))&&(Dr.bra=Dr.cursor,Dr.slice_del(),Dr.ket=Dr.cursor,W()&&(Dr.bra=Dr.cursor,Dr.slice_del(),K()))))}}}function U(){var r;if(Dr.ket=Dr.cursor,r=Dr.find_among_b(Sr,4))switch(Dr.bra=Dr.cursor,r){case 1:Dr.slice_from("p");break;case 2:Dr.slice_from("ç");break;case 3:Dr.slice_from("t");break;case 4:Dr.slice_from("k")}}function V(){for(;;){var r=Dr.limit-Dr.cursor;if(Dr.in_grouping_b(Wr,97,305)){Dr.cursor=Dr.limit-r;break}if(Dr.cursor=Dr.limit-r,Dr.cursor<=Dr.limit_backward)return!1;Dr.cursor--}return!0}function X(r,i,e){if(Dr.cursor=Dr.limit-r,V()){var n=Dr.limit-Dr.cursor;if(!Dr.eq_s_b(1,i)&&(Dr.cursor=Dr.limit-n,!Dr.eq_s_b(1,e)))return!0;Dr.cursor=Dr.limit-r;var t=Dr.cursor;return Dr.insert(Dr.cursor,Dr.cursor,e),Dr.cursor=t,!1}return!0}function Y(){var r=Dr.limit-Dr.cursor;(Dr.eq_s_b(1,"d")||(Dr.cursor=Dr.limit-r,Dr.eq_s_b(1,"g")))&&X(r,"a","ı")&&X(r,"e","i")&&X(r,"o","u")&&X(r,"ö","ü")}function $(){for(var r,i=Dr.cursor,e=2;;){for(r=Dr.cursor;!Dr.in_grouping(Wr,97,305);){if(Dr.cursor>=Dr.limit)return Dr.cursor=r,!(e>0)&&(Dr.cursor=i,!0);Dr.cursor++}e--}}function rr(r,i,e){for(;!Dr.eq_s(i,e);){if(Dr.cursor>=Dr.limit)return!0;Dr.cursor++}return(tr=i)!=Dr.limit||(Dr.cursor=r,!1)}function ir(){var r=Dr.cursor;return!rr(r,2,"ad")||(Dr.cursor=r,!rr(r,5,"soyad"))}function er(){var r=Dr.cursor;return!ir()&&(Dr.limit_backward=r,Dr.cursor=Dr.limit,Y(),Dr.cursor=Dr.limit,U(),!0)}var nr,tr,ur=[new i("m",-1,-1),new i("n",-1,-1),new i("miz",-1,-1),new i("niz",-1,-1),new i("muz",-1,-1),new i("nuz",-1,-1),new i("müz",-1,-1),new i("nüz",-1,-1),new i("mız",-1,-1),new i("nız",-1,-1)],or=[new i("leri",-1,-1),new i("ları",-1,-1)],sr=[new i("ni",-1,-1),new i("nu",-1,-1),new i("nü",-1,-1),new i("nı",-1,-1)],cr=[new i("in",-1,-1),new i("un",-1,-1),new i("ün",-1,-1),new i("ın",-1,-1)],lr=[new i("a",-1,-1),new i("e",-1,-1)],ar=[new i("na",-1,-1),new i("ne",-1,-1)],mr=[new i("da",-1,-1),new i("ta",-1,-1),new i("de",-1,-1),new i("te",-1,-1)],dr=[new i("nda",-1,-1),new i("nde",-1,-1)],fr=[new i("dan",-1,-1),new i("tan",-1,-1),new i("den",-1,-1),new i("ten",-1,-1)],br=[new i("ndan",-1,-1),new i("nden",-1,-1)],wr=[new i("la",-1,-1),new i("le",-1,-1)],_r=[new i("ca",-1,-1),new i("ce",-1,-1)],kr=[new i("im",-1,-1),new i("um",-1,-1),new i("üm",-1,-1),new i("ım",-1,-1)],pr=[new 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i("dün",-1,-1),new i("tün",-1,-1),new i("dın",-1,-1),new i("tın",-1,-1),new i("du",-1,-1),new i("tu",-1,-1),new i("dü",-1,-1),new i("tü",-1,-1),new i("dı",-1,-1),new i("tı",-1,-1)],Pr=[new i("sa",-1,-1),new i("se",-1,-1),new i("sak",-1,-1),new i("sek",-1,-1),new i("sam",-1,-1),new i("sem",-1,-1),new i("san",-1,-1),new i("sen",-1,-1)],Fr=[new i("miş",-1,-1),new i("muş",-1,-1),new i("müş",-1,-1),new i("mış",-1,-1)],Sr=[new i("b",-1,1),new i("c",-1,2),new i("d",-1,3),new i("ğ",-1,4)],Wr=[17,65,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,32,8,0,0,0,0,0,0,1],Lr=[1,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,1],xr=[1,64,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],Ar=[17,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,130],Er=[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],jr=[17],Tr=[65],Zr=[65],Br=[["a",xr,97,305],["e",Ar,101,252],["ı",Er,97,305],["i",jr,101,105],["o",Tr,111,117],["ö",Zr,246,252],["u",Tr,111,117]],Dr=new e;this.setCurrent=function(r){Dr.setCurrent(r)},this.getCurrent=function(){return Dr.getCurrent()},this.stem=function(){return!!($()&&(Dr.limit_backward=Dr.cursor,Dr.cursor=Dr.limit,J(),Dr.cursor=Dr.limit,nr&&(R(),Dr.cursor=Dr.limit_backward,er())))}};return function(r){return"function"==typeof r.update?r.update(function(r){return n.setCurrent(r),n.stem(),n.getCurrent()}):(n.setCurrent(r),n.stem(),n.getCurrent())}}(),r.Pipeline.registerFunction(r.tr.stemmer,"stemmer-tr"),r.tr.stopWordFilter=r.generateStopWordFilter("acaba altmış altı ama ancak arada aslında ayrıca bana bazı belki ben benden beni benim beri beş bile bin bir biri birkaç birkez birçok birşey birşeyi biz bizden bize bizi bizim bu buna bunda bundan bunlar bunları bunların bunu bunun burada böyle böylece da daha dahi de defa değil diye diğer doksan dokuz dolayı dolayısıyla dört edecek eden ederek edilecek ediliyor edilmesi ediyor elli en etmesi etti ettiği ettiğini eğer gibi göre halen hangi hatta hem henüz hep hepsi her herhangi herkesin hiç hiçbir iki ile ilgili ise itibaren itibariyle için işte kadar karşın katrilyon kendi kendilerine kendini kendisi kendisine kendisini kez ki kim kimden kime kimi kimse kırk milyar milyon mu mü mı nasıl ne neden nedenle nerde nerede nereye niye niçin o olan olarak oldu olduklarını olduğu olduğunu olmadı olmadığı olmak olması olmayan olmaz olsa olsun olup olur olursa oluyor on ona ondan onlar onlardan onları onların onu onun otuz oysa pek rağmen sadece sanki sekiz seksen sen senden seni senin siz sizden sizi sizin tarafından trilyon tüm var vardı ve veya ya yani yapacak yapmak yaptı yaptıkları yaptığı yaptığını yapılan yapılması yapıyor yedi yerine yetmiş yine yirmi yoksa yüz zaten çok çünkü öyle üzere üç şey şeyden şeyi şeyler şu şuna şunda şundan şunları şunu şöyle".split(" ")),r.Pipeline.registerFunction(r.tr.stopWordFilter,"stopWordFilter-tr")}}); \ No newline at end of file diff --git a/assets/javascripts/lunr/min/lunr.vi.min.js b/assets/javascripts/lunr/min/lunr.vi.min.js new file mode 100644 index 00000000..22aed28c --- /dev/null +++ b/assets/javascripts/lunr/min/lunr.vi.min.js @@ -0,0 +1 @@ +!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. 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+ + return this; + } + TinySegmenter.prototype.ctype_ = function(str) { + for (var i in this.chartype_) { + if (str.match(this.chartype_[i][0])) { + return this.chartype_[i][1]; + } + } + return "O"; + } + + TinySegmenter.prototype.ts_ = function(v) { + if (v) { return v; } + return 0; + } + + TinySegmenter.prototype.segment = function(input) { + if (input == null || input == undefined || input == "") { + return []; + } + var result = []; + var seg = ["B3","B2","B1"]; + var ctype = ["O","O","O"]; + var o = input.split(""); + for (i = 0; i < o.length; ++i) { + seg.push(o[i]); + ctype.push(this.ctype_(o[i])) + } + seg.push("E1"); + seg.push("E2"); + seg.push("E3"); + ctype.push("O"); + ctype.push("O"); + ctype.push("O"); + var word = seg[3]; + var p1 = "U"; + var p2 = "U"; + var p3 = "U"; + for (var i = 4; i < seg.length - 3; ++i) { + var score = this.BIAS__; + var w1 = seg[i-3]; + var w2 = seg[i-2]; + var w3 = seg[i-1]; + var w4 = seg[i]; + var w5 = seg[i+1]; + var w6 = seg[i+2]; + var c1 = ctype[i-3]; + var c2 = ctype[i-2]; + var c3 = ctype[i-1]; + var c4 = ctype[i]; + var c5 = ctype[i+1]; + var c6 = ctype[i+2]; + score += this.ts_(this.UP1__[p1]); + score += this.ts_(this.UP2__[p2]); + score += this.ts_(this.UP3__[p3]); + score += this.ts_(this.BP1__[p1 + p2]); + score += this.ts_(this.BP2__[p2 + p3]); + score += this.ts_(this.UW1__[w1]); + score += this.ts_(this.UW2__[w2]); + score += this.ts_(this.UW3__[w3]); + score += this.ts_(this.UW4__[w4]); + score += this.ts_(this.UW5__[w5]); + score += this.ts_(this.UW6__[w6]); + score += this.ts_(this.BW1__[w2 + w3]); + score += this.ts_(this.BW2__[w3 + w4]); + score += this.ts_(this.BW3__[w4 + w5]); + score += this.ts_(this.TW1__[w1 + w2 + w3]); + score += this.ts_(this.TW2__[w2 + w3 + w4]); + score += this.ts_(this.TW3__[w3 + w4 + w5]); + score += this.ts_(this.TW4__[w4 + w5 + w6]); + score += this.ts_(this.UC1__[c1]); + score += this.ts_(this.UC2__[c2]); + score += this.ts_(this.UC3__[c3]); + score += this.ts_(this.UC4__[c4]); + score += this.ts_(this.UC5__[c5]); + score += this.ts_(this.UC6__[c6]); + score += this.ts_(this.BC1__[c2 + c3]); + score += this.ts_(this.BC2__[c3 + c4]); + score += this.ts_(this.BC3__[c4 + c5]); + score += this.ts_(this.TC1__[c1 + c2 + c3]); + score += this.ts_(this.TC2__[c2 + c3 + c4]); + score += this.ts_(this.TC3__[c3 + c4 + c5]); + score += this.ts_(this.TC4__[c4 + c5 + c6]); + // score += this.ts_(this.TC5__[c4 + c5 + c6]); + score += this.ts_(this.UQ1__[p1 + c1]); + score += this.ts_(this.UQ2__[p2 + c2]); + score += this.ts_(this.UQ3__[p3 + c3]); + score += this.ts_(this.BQ1__[p2 + c2 + c3]); + score += this.ts_(this.BQ2__[p2 + c3 + c4]); + score += this.ts_(this.BQ3__[p3 + c2 + c3]); + score += this.ts_(this.BQ4__[p3 + c3 + c4]); + score += this.ts_(this.TQ1__[p2 + c1 + c2 + c3]); + score += this.ts_(this.TQ2__[p2 + c2 + c3 + c4]); + score += this.ts_(this.TQ3__[p3 + c1 + c2 + c3]); + score += this.ts_(this.TQ4__[p3 + c2 + c3 + c4]); + var p = "O"; + if (score > 0) { + result.push(word); + word = ""; + p = "B"; + } + p1 = p2; + p2 = p3; + p3 = p; + word += seg[i]; + } + result.push(word); + + return result; + } + + lunr.TinySegmenter = TinySegmenter; + }; + +})); \ No newline at end of file diff --git a/assets/javascripts/lunr/wordcut.js b/assets/javascripts/lunr/wordcut.js new file mode 100644 index 00000000..146f4b44 --- /dev/null +++ b/assets/javascripts/lunr/wordcut.js @@ -0,0 +1,6708 @@ +(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}(g.lunr || (g.lunr = {})).wordcut = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o 1; + }) + this.addWords(words, false) + } + if(finalize){ + this.finalizeDict(); + } + }, + + dictSeek: function (l, r, ch, strOffset, pos) { + var ans = null; + while (l <= r) { + var m = Math.floor((l + r) / 2), + dict_item = this.dict[m], + len = dict_item.length; + if (len <= strOffset) { + l = m + 1; + } else { + var ch_ = dict_item[strOffset]; + if (ch_ < ch) { + l = m + 1; + } else if (ch_ > ch) { + r = m - 1; + } else { + ans = m; + if (pos == LEFT) { + r = m - 1; + } else { + l = m + 1; + } + } + } + } + return ans; + }, + + isFinal: function (acceptor) { + return this.dict[acceptor.l].length == acceptor.strOffset; + }, + + createAcceptor: function () { + return { + l: 0, + r: this.dict.length - 1, + strOffset: 0, + isFinal: false, + dict: this, + transit: function (ch) { + return this.dict.transit(this, ch); + }, + isError: false, + tag: "DICT", + w: 1, + type: "DICT" + }; + }, + + transit: function (acceptor, ch) { + var l = this.dictSeek(acceptor.l, + acceptor.r, + ch, + acceptor.strOffset, + LEFT); + if (l !== null) { + var r = this.dictSeek(l, + acceptor.r, + ch, + acceptor.strOffset, + RIGHT); + acceptor.l = l; + acceptor.r = r; + acceptor.strOffset++; + acceptor.isFinal = this.isFinal(acceptor); + } else { + acceptor.isError = true; + } + return acceptor; + }, + + sortuniq: function(a){ + return a.sort().filter(function(item, pos, arr){ + return !pos || item != arr[pos - 1]; + }) + }, + + flatten: function(a){ + //[[1,2],[3]] -> [1,2,3] + return [].concat.apply([], a); + } +}; +module.exports = WordcutDict; + +}).call(this,"/dist/tmp") +},{"glob":16,"path":22}],3:[function(require,module,exports){ +var WordRule = { + createAcceptor: function(tag) { + if (tag["WORD_RULE"]) + return null; + + return {strOffset: 0, + isFinal: false, + transit: function(ch) { + var lch = ch.toLowerCase(); + if (lch >= "a" && lch <= "z") { + this.isFinal = true; + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: "WORD_RULE", + type: "WORD_RULE", + w: 1}; + } +}; + +var NumberRule = { + createAcceptor: function(tag) { + if (tag["NUMBER_RULE"]) + return null; + + return {strOffset: 0, + isFinal: false, + transit: function(ch) { + if (ch >= "0" && ch <= "9") { + this.isFinal = true; + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: "NUMBER_RULE", + type: "NUMBER_RULE", + w: 1}; + } +}; + +var SpaceRule = { + tag: "SPACE_RULE", + createAcceptor: function(tag) { + + if (tag["SPACE_RULE"]) + return null; + + return {strOffset: 0, + isFinal: false, + transit: function(ch) { + if (ch == " " || ch == "\t" || ch == "\r" || ch == "\n" || + ch == "\u00A0" || ch=="\u2003"//nbsp and emsp + ) { + this.isFinal = true; + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: SpaceRule.tag, + w: 1, + type: "SPACE_RULE"}; + } +} + +var SingleSymbolRule = { + tag: "SINSYM", + createAcceptor: function(tag) { + return {strOffset: 0, + isFinal: false, + transit: function(ch) { + if (this.strOffset == 0 && ch.match(/^[\@\(\)\/\,\-\."`]$/)) { + this.isFinal = true; + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: "SINSYM", + w: 1, + type: "SINSYM"}; + } +} + + +var LatinRules = [WordRule, SpaceRule, SingleSymbolRule, NumberRule]; + +module.exports = LatinRules; + +},{}],4:[function(require,module,exports){ +var _ = require("underscore") + , WordcutCore = require("./wordcut_core"); +var PathInfoBuilder = { + + /* + buildByPartAcceptors: function(path, acceptors, i) { + var + var genInfos = partAcceptors.reduce(function(genInfos, acceptor) { + + }, []); + + return genInfos; + } + */ + + buildByAcceptors: function(path, finalAcceptors, i) { + var self = this; + var infos = finalAcceptors.map(function(acceptor) { + var p = i - acceptor.strOffset + 1 + , _info = path[p]; + + var info = {p: p, + mw: _info.mw + (acceptor.mw === undefined ? 0 : acceptor.mw), + w: acceptor.w + _info.w, + unk: (acceptor.unk ? acceptor.unk : 0) + _info.unk, + type: acceptor.type}; + + if (acceptor.type == "PART") { + for(var j = p + 1; j <= i; j++) { + path[j].merge = p; + } + info.merge = p; + } + + return info; + }); + return infos.filter(function(info) { return info; }); + }, + + fallback: function(path, leftBoundary, text, i) { + var _info = path[leftBoundary]; + if (text[i].match(/[\u0E48-\u0E4E]/)) { + if (leftBoundary != 0) + leftBoundary = path[leftBoundary].p; + return {p: leftBoundary, + mw: 0, + w: 1 + _info.w, + unk: 1 + _info.unk, + type: "UNK"}; +/* } else if(leftBoundary > 0 && path[leftBoundary].type !== "UNK") { + leftBoundary = path[leftBoundary].p; + return {p: leftBoundary, + w: 1 + _info.w, + unk: 1 + _info.unk, + type: "UNK"}; */ + } else { + return {p: leftBoundary, + mw: _info.mw, + w: 1 + _info.w, + unk: 1 + _info.unk, + type: "UNK"}; + } + }, + + build: function(path, finalAcceptors, i, leftBoundary, text) { + var basicPathInfos = this.buildByAcceptors(path, finalAcceptors, i); + if (basicPathInfos.length > 0) { + return basicPathInfos; + } else { + return [this.fallback(path, leftBoundary, text, i)]; + } + } +}; + +module.exports = function() { + return _.clone(PathInfoBuilder); +} + +},{"./wordcut_core":8,"underscore":25}],5:[function(require,module,exports){ +var _ = require("underscore"); + + +var PathSelector = { + selectPath: function(paths) { + var path = paths.reduce(function(selectedPath, path) { + if (selectedPath == null) { + return path; + } else { + if (path.unk < selectedPath.unk) + return path; + if (path.unk == selectedPath.unk) { + if (path.mw < selectedPath.mw) + return path + if (path.mw == selectedPath.mw) { + if (path.w < selectedPath.w) + return path; + } + } + return selectedPath; + } + }, null); + return path; + }, + + createPath: function() { + return [{p:null, w:0, unk:0, type: "INIT", mw:0}]; + } +}; + +module.exports = function() { + return _.clone(PathSelector); +}; + +},{"underscore":25}],6:[function(require,module,exports){ +function isMatch(pat, offset, ch) { + if (pat.length <= offset) + return false; + var _ch = pat[offset]; + return _ch == ch || + (_ch.match(/[กข]/) && ch.match(/[ก-ฮ]/)) || + (_ch.match(/[มบ]/) && ch.match(/[ก-ฮ]/)) || + (_ch.match(/\u0E49/) && ch.match(/[\u0E48-\u0E4B]/)); +} + +var Rule0 = { + pat: "เหก็ม", + createAcceptor: function(tag) { + return {strOffset: 0, + isFinal: false, + transit: function(ch) { + if (isMatch(Rule0.pat, this.strOffset,ch)) { + this.isFinal = (this.strOffset + 1 == Rule0.pat.length); + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: "THAI_RULE", + type: "THAI_RULE", + w: 1}; + } +}; + +var PartRule = { + createAcceptor: function(tag) { + return {strOffset: 0, + patterns: [ + "แก", "เก", "ก้", "กก์", "กา", "กี", "กิ", "กืก" + ], + isFinal: false, + transit: function(ch) { + var offset = this.strOffset; + this.patterns = this.patterns.filter(function(pat) { + return isMatch(pat, offset, ch); + }); + + if (this.patterns.length > 0) { + var len = 1 + offset; + this.isFinal = this.patterns.some(function(pat) { + return pat.length == len; + }); + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: "PART", + type: "PART", + unk: 1, + w: 1}; + } +}; + +var ThaiRules = [Rule0, PartRule]; + +module.exports = ThaiRules; + +},{}],7:[function(require,module,exports){ +var sys = require("sys") + , WordcutDict = require("./dict") + , WordcutCore = require("./wordcut_core") + , PathInfoBuilder = require("./path_info_builder") + , PathSelector = require("./path_selector") + , Acceptors = require("./acceptors") + , latinRules = require("./latin_rules") + , thaiRules = require("./thai_rules") + , _ = require("underscore"); + + +var Wordcut = Object.create(WordcutCore); +Wordcut.defaultPathInfoBuilder = PathInfoBuilder; +Wordcut.defaultPathSelector = PathSelector; +Wordcut.defaultAcceptors = Acceptors; +Wordcut.defaultLatinRules = latinRules; +Wordcut.defaultThaiRules = thaiRules; +Wordcut.defaultDict = WordcutDict; + + +Wordcut.initNoDict = function(dict_path) { + var self = this; + self.pathInfoBuilder = new self.defaultPathInfoBuilder; + self.pathSelector = new self.defaultPathSelector; + self.acceptors = new self.defaultAcceptors; + self.defaultLatinRules.forEach(function(rule) { + self.acceptors.creators.push(rule); + }); + self.defaultThaiRules.forEach(function(rule) { + self.acceptors.creators.push(rule); + }); +}; + +Wordcut.init = function(dict_path, withDefault, additionalWords) { + withDefault = withDefault || false; + this.initNoDict(); + var dict = _.clone(this.defaultDict); + dict.init(dict_path, withDefault, additionalWords); + this.acceptors.creators.push(dict); +}; + +module.exports = Wordcut; + +},{"./acceptors":1,"./dict":2,"./latin_rules":3,"./path_info_builder":4,"./path_selector":5,"./thai_rules":6,"./wordcut_core":8,"sys":28,"underscore":25}],8:[function(require,module,exports){ +var WordcutCore = { + + buildPath: function(text) { + var self = this + , path = self.pathSelector.createPath() + , leftBoundary = 0; + self.acceptors.reset(); + for (var i = 0; i < text.length; i++) { + var ch = text[i]; + self.acceptors.transit(ch); + + var possiblePathInfos = self + .pathInfoBuilder + .build(path, + self.acceptors.getFinalAcceptors(), + i, + leftBoundary, + text); + var selectedPath = self.pathSelector.selectPath(possiblePathInfos) + + path.push(selectedPath); + if (selectedPath.type !== "UNK") { + leftBoundary = i; + } + } + return path; + }, + + pathToRanges: function(path) { + var e = path.length - 1 + , ranges = []; + + while (e > 0) { + var info = path[e] + , s = info.p; + + if (info.merge !== undefined && ranges.length > 0) { + var r = ranges[ranges.length - 1]; + r.s = info.merge; + s = r.s; + } else { + ranges.push({s:s, e:e}); + } + e = s; + } + return ranges.reverse(); + }, + + rangesToText: function(text, ranges, delimiter) { + return ranges.map(function(r) { + return text.substring(r.s, r.e); + }).join(delimiter); + }, + + cut: function(text, delimiter) { + var path = this.buildPath(text) + , ranges = this.pathToRanges(path); + return this + .rangesToText(text, ranges, + (delimiter === undefined ? "|" : delimiter)); + }, + + cutIntoRanges: function(text, noText) { + var path = this.buildPath(text) + , ranges = this.pathToRanges(path); + + if (!noText) { + ranges.forEach(function(r) { + r.text = text.substring(r.s, r.e); + }); + } + return ranges; + }, + + cutIntoArray: function(text) { + var path = this.buildPath(text) + , ranges = this.pathToRanges(path); + + return ranges.map(function(r) { + return text.substring(r.s, r.e) + }); + } +}; + +module.exports = WordcutCore; + +},{}],9:[function(require,module,exports){ +// http://wiki.commonjs.org/wiki/Unit_Testing/1.0 +// +// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8! +// +// Originally from narwhal.js (http://narwhaljs.org) +// Copyright (c) 2009 Thomas Robinson <280north.com> +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the 'Software'), to +// deal in the Software without restriction, including without limitation the +// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +// sell copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +// when used in node, this will actually load the util module we depend on +// versus loading the builtin util module as happens otherwise +// this is a bug in node module loading as far as I am concerned +var util = require('util/'); + +var pSlice = Array.prototype.slice; +var hasOwn = Object.prototype.hasOwnProperty; + +// 1. The assert module provides functions that throw +// AssertionError's when particular conditions are not met. The +// assert module must conform to the following interface. + +var assert = module.exports = ok; + +// 2. The AssertionError is defined in assert. +// new assert.AssertionError({ message: message, +// actual: actual, +// expected: expected }) + +assert.AssertionError = function AssertionError(options) { + this.name = 'AssertionError'; + this.actual = options.actual; + this.expected = options.expected; + this.operator = options.operator; + if (options.message) { + this.message = options.message; + this.generatedMessage = false; + } else { + this.message = getMessage(this); + this.generatedMessage = true; + } + var stackStartFunction = options.stackStartFunction || fail; + + if (Error.captureStackTrace) { + Error.captureStackTrace(this, stackStartFunction); + } + else { + // non v8 browsers so we can have a stacktrace + var err = new Error(); + if (err.stack) { + var out = err.stack; + + // try to strip useless frames + var fn_name = stackStartFunction.name; + var idx = out.indexOf('\n' + fn_name); + if (idx >= 0) { + // once we have located the function frame + // we need to strip out everything before it (and its line) + var next_line = out.indexOf('\n', idx + 1); + out = out.substring(next_line + 1); + } + + this.stack = out; + } + } +}; + +// assert.AssertionError instanceof Error +util.inherits(assert.AssertionError, Error); + +function replacer(key, value) { + if (util.isUndefined(value)) { + return '' + value; + } + if (util.isNumber(value) && !isFinite(value)) { + return value.toString(); + } + if (util.isFunction(value) || util.isRegExp(value)) { + return value.toString(); + } + return value; +} + +function truncate(s, n) { + if (util.isString(s)) { + return s.length < n ? s : s.slice(0, n); + } else { + return s; + } +} + +function getMessage(self) { + return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' + + self.operator + ' ' + + truncate(JSON.stringify(self.expected, replacer), 128); +} + +// At present only the three keys mentioned above are used and +// understood by the spec. Implementations or sub modules can pass +// other keys to the AssertionError's constructor - they will be +// ignored. + +// 3. All of the following functions must throw an AssertionError +// when a corresponding condition is not met, with a message that +// may be undefined if not provided. All assertion methods provide +// both the actual and expected values to the assertion error for +// display purposes. + +function fail(actual, expected, message, operator, stackStartFunction) { + throw new assert.AssertionError({ + message: message, + actual: actual, + expected: expected, + operator: operator, + stackStartFunction: stackStartFunction + }); +} + +// EXTENSION! allows for well behaved errors defined elsewhere. +assert.fail = fail; + +// 4. Pure assertion tests whether a value is truthy, as determined +// by !!guard. +// assert.ok(guard, message_opt); +// This statement is equivalent to assert.equal(true, !!guard, +// message_opt);. To test strictly for the value true, use +// assert.strictEqual(true, guard, message_opt);. + +function ok(value, message) { + if (!value) fail(value, true, message, '==', assert.ok); +} +assert.ok = ok; + +// 5. The equality assertion tests shallow, coercive equality with +// ==. +// assert.equal(actual, expected, message_opt); + +assert.equal = function equal(actual, expected, message) { + if (actual != expected) fail(actual, expected, message, '==', assert.equal); +}; + +// 6. The non-equality assertion tests for whether two objects are not equal +// with != assert.notEqual(actual, expected, message_opt); + +assert.notEqual = function notEqual(actual, expected, message) { + if (actual == expected) { + fail(actual, expected, message, '!=', assert.notEqual); + } +}; + +// 7. The equivalence assertion tests a deep equality relation. +// assert.deepEqual(actual, expected, message_opt); + +assert.deepEqual = function deepEqual(actual, expected, message) { + if (!_deepEqual(actual, expected)) { + fail(actual, expected, message, 'deepEqual', assert.deepEqual); + } +}; + +function _deepEqual(actual, expected) { + // 7.1. All identical values are equivalent, as determined by ===. + if (actual === expected) { + return true; + + } else if (util.isBuffer(actual) && util.isBuffer(expected)) { + if (actual.length != expected.length) return false; + + for (var i = 0; i < actual.length; i++) { + if (actual[i] !== expected[i]) return false; + } + + return true; + + // 7.2. If the expected value is a Date object, the actual value is + // equivalent if it is also a Date object that refers to the same time. + } else if (util.isDate(actual) && util.isDate(expected)) { + return actual.getTime() === expected.getTime(); + + // 7.3 If the expected value is a RegExp object, the actual value is + // equivalent if it is also a RegExp object with the same source and + // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`). + } else if (util.isRegExp(actual) && util.isRegExp(expected)) { + return actual.source === expected.source && + actual.global === expected.global && + actual.multiline === expected.multiline && + actual.lastIndex === expected.lastIndex && + actual.ignoreCase === expected.ignoreCase; + + // 7.4. Other pairs that do not both pass typeof value == 'object', + // equivalence is determined by ==. + } else if (!util.isObject(actual) && !util.isObject(expected)) { + return actual == expected; + + // 7.5 For all other Object pairs, including Array objects, equivalence is + // determined by having the same number of owned properties (as verified + // with Object.prototype.hasOwnProperty.call), the same set of keys + // (although not necessarily the same order), equivalent values for every + // corresponding key, and an identical 'prototype' property. Note: this + // accounts for both named and indexed properties on Arrays. + } else { + return objEquiv(actual, expected); + } +} + +function isArguments(object) { + return Object.prototype.toString.call(object) == '[object Arguments]'; +} + +function objEquiv(a, b) { + if (util.isNullOrUndefined(a) || util.isNullOrUndefined(b)) + return false; + // an identical 'prototype' property. + if (a.prototype !== b.prototype) return false; + // if one is a primitive, the other must be same + if (util.isPrimitive(a) || util.isPrimitive(b)) { + return a === b; + } + var aIsArgs = isArguments(a), + bIsArgs = isArguments(b); + if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs)) + return false; + if (aIsArgs) { + a = pSlice.call(a); + b = pSlice.call(b); + return _deepEqual(a, b); + } + var ka = objectKeys(a), + kb = objectKeys(b), + key, i; + // having the same number of owned properties (keys incorporates + // hasOwnProperty) + if (ka.length != kb.length) + return false; + //the same set of keys (although not necessarily the same order), + ka.sort(); + kb.sort(); + //~~~cheap key test + for (i = ka.length - 1; i >= 0; i--) { + if (ka[i] != kb[i]) + return false; + } + //equivalent values for every corresponding key, and + //~~~possibly expensive deep test + for (i = ka.length - 1; i >= 0; i--) { + key = ka[i]; + if (!_deepEqual(a[key], b[key])) return false; + } + return true; +} + +// 8. The non-equivalence assertion tests for any deep inequality. +// assert.notDeepEqual(actual, expected, message_opt); + +assert.notDeepEqual = function notDeepEqual(actual, expected, message) { + if (_deepEqual(actual, expected)) { + fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual); + } +}; + +// 9. The strict equality assertion tests strict equality, as determined by ===. +// assert.strictEqual(actual, expected, message_opt); + +assert.strictEqual = function strictEqual(actual, expected, message) { + if (actual !== expected) { + fail(actual, expected, message, '===', assert.strictEqual); + } +}; + +// 10. The strict non-equality assertion tests for strict inequality, as +// determined by !==. assert.notStrictEqual(actual, expected, message_opt); + +assert.notStrictEqual = function notStrictEqual(actual, expected, message) { + if (actual === expected) { + fail(actual, expected, message, '!==', assert.notStrictEqual); + } +}; + +function expectedException(actual, expected) { + if (!actual || !expected) { + return false; + } + + if (Object.prototype.toString.call(expected) == '[object RegExp]') { + return expected.test(actual); + } else if (actual instanceof expected) { + return true; + } else if (expected.call({}, actual) === true) { + return true; + } + + return false; +} + +function _throws(shouldThrow, block, expected, message) { + var actual; + + if (util.isString(expected)) { + message = expected; + expected = null; + } + + try { + block(); + } catch (e) { + actual = e; + } + + message = (expected && expected.name ? ' (' + expected.name + ').' : '.') + + (message ? ' ' + message : '.'); + + if (shouldThrow && !actual) { + fail(actual, expected, 'Missing expected exception' + message); + } + + if (!shouldThrow && expectedException(actual, expected)) { + fail(actual, expected, 'Got unwanted exception' + message); + } + + if ((shouldThrow && actual && expected && + !expectedException(actual, expected)) || (!shouldThrow && actual)) { + throw actual; + } +} + +// 11. Expected to throw an error: +// assert.throws(block, Error_opt, message_opt); + +assert.throws = function(block, /*optional*/error, /*optional*/message) { + _throws.apply(this, [true].concat(pSlice.call(arguments))); +}; + +// EXTENSION! This is annoying to write outside this module. +assert.doesNotThrow = function(block, /*optional*/message) { + _throws.apply(this, [false].concat(pSlice.call(arguments))); +}; + +assert.ifError = function(err) { if (err) {throw err;}}; + +var objectKeys = Object.keys || function (obj) { + var keys = []; + for (var key in obj) { + if (hasOwn.call(obj, key)) keys.push(key); + } + return keys; +}; + +},{"util/":28}],10:[function(require,module,exports){ +'use strict'; +module.exports = balanced; +function balanced(a, b, str) { + if (a instanceof RegExp) a = maybeMatch(a, str); + if (b instanceof RegExp) b = maybeMatch(b, str); + + var r = range(a, b, str); + + return r && { + start: r[0], + end: r[1], + pre: str.slice(0, r[0]), + body: str.slice(r[0] + a.length, r[1]), + post: str.slice(r[1] + b.length) + }; +} + +function maybeMatch(reg, str) { + var m = str.match(reg); + return m ? m[0] : null; +} + +balanced.range = range; +function range(a, b, str) { + var begs, beg, left, right, result; + var ai = str.indexOf(a); + var bi = str.indexOf(b, ai + 1); + var i = ai; + + if (ai >= 0 && bi > 0) { + begs = []; + left = str.length; + + while (i >= 0 && !result) { + if (i == ai) { + begs.push(i); + ai = str.indexOf(a, i + 1); + } else if (begs.length == 1) { + result = [ begs.pop(), bi ]; + } else { + beg = begs.pop(); + if (beg < left) { + left = beg; + right = bi; + } + + bi = str.indexOf(b, i + 1); + } + + i = ai < bi && ai >= 0 ? ai : bi; + } + + if (begs.length) { + result = [ left, right ]; + } + } + + return result; +} + +},{}],11:[function(require,module,exports){ +var concatMap = require('concat-map'); +var balanced = require('balanced-match'); + +module.exports = expandTop; + +var escSlash = '\0SLASH'+Math.random()+'\0'; +var escOpen = '\0OPEN'+Math.random()+'\0'; +var escClose = '\0CLOSE'+Math.random()+'\0'; +var escComma = '\0COMMA'+Math.random()+'\0'; +var escPeriod = '\0PERIOD'+Math.random()+'\0'; + +function numeric(str) { + return parseInt(str, 10) == str + ? parseInt(str, 10) + : str.charCodeAt(0); +} + +function escapeBraces(str) { + return str.split('\\\\').join(escSlash) + .split('\\{').join(escOpen) + .split('\\}').join(escClose) + .split('\\,').join(escComma) + .split('\\.').join(escPeriod); +} + +function unescapeBraces(str) { + return str.split(escSlash).join('\\') + .split(escOpen).join('{') + .split(escClose).join('}') + .split(escComma).join(',') + .split(escPeriod).join('.'); +} + + +// Basically just str.split(","), but handling cases +// where we have nested braced sections, which should be +// treated as individual members, like {a,{b,c},d} +function parseCommaParts(str) { + if (!str) + return ['']; + + var parts = []; + var m = balanced('{', '}', str); + + if (!m) + return str.split(','); + + var pre = m.pre; + var body = m.body; + var post = m.post; + var p = pre.split(','); + + p[p.length-1] += '{' + body + '}'; + var postParts = parseCommaParts(post); + if (post.length) { + p[p.length-1] += postParts.shift(); + p.push.apply(p, postParts); + } + + parts.push.apply(parts, p); + + return parts; +} + +function expandTop(str) { + if (!str) + return []; + + // I don't know why Bash 4.3 does this, but it does. + // Anything starting with {} will have the first two bytes preserved + // but *only* at the top level, so {},a}b will not expand to anything, + // but a{},b}c will be expanded to [a}c,abc]. + // One could argue that this is a bug in Bash, but since the goal of + // this module is to match Bash's rules, we escape a leading {} + if (str.substr(0, 2) === '{}') { + str = '\\{\\}' + str.substr(2); + } + + return expand(escapeBraces(str), true).map(unescapeBraces); +} + +function identity(e) { + return e; +} + +function embrace(str) { + return '{' + str + '}'; +} +function isPadded(el) { + return /^-?0\d/.test(el); +} + +function lte(i, y) { + return i <= y; +} +function gte(i, y) { + return i >= y; +} + +function expand(str, isTop) { + var expansions = []; + + var m = balanced('{', '}', str); + if (!m || /\$$/.test(m.pre)) return [str]; + + var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body); + var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body); + var isSequence = isNumericSequence || isAlphaSequence; + var isOptions = m.body.indexOf(',') >= 0; + if (!isSequence && !isOptions) { + // {a},b} + if (m.post.match(/,.*\}/)) { + str = m.pre + '{' + m.body + escClose + m.post; + return expand(str); + } + return [str]; + } + + var n; + if (isSequence) { + n = m.body.split(/\.\./); + } else { + n = parseCommaParts(m.body); + if (n.length === 1) { + // x{{a,b}}y ==> x{a}y x{b}y + n = expand(n[0], false).map(embrace); + if (n.length === 1) { + var post = m.post.length + ? expand(m.post, false) + : ['']; + return post.map(function(p) { + return m.pre + n[0] + p; + }); + } + } + } + + // at this point, n is the parts, and we know it's not a comma set + // with a single entry. + + // no need to expand pre, since it is guaranteed to be free of brace-sets + var pre = m.pre; + var post = m.post.length + ? expand(m.post, false) + : ['']; + + var N; + + if (isSequence) { + var x = numeric(n[0]); + var y = numeric(n[1]); + var width = Math.max(n[0].length, n[1].length) + var incr = n.length == 3 + ? Math.abs(numeric(n[2])) + : 1; + var test = lte; + var reverse = y < x; + if (reverse) { + incr *= -1; + test = gte; + } + var pad = n.some(isPadded); + + N = []; + + for (var i = x; test(i, y); i += incr) { + var c; + if (isAlphaSequence) { + c = String.fromCharCode(i); + if (c === '\\') + c = ''; + } else { + c = String(i); + if (pad) { + var need = width - c.length; + if (need > 0) { + var z = new Array(need + 1).join('0'); + if (i < 0) + c = '-' + z + c.slice(1); + else + c = z + c; + } + } + } + N.push(c); + } + } else { + N = concatMap(n, function(el) { return expand(el, false) }); + } + + for (var j = 0; j < N.length; j++) { + for (var k = 0; k < post.length; k++) { + var expansion = pre + N[j] + post[k]; + if (!isTop || isSequence || expansion) + expansions.push(expansion); + } + } + + return expansions; +} + + +},{"balanced-match":10,"concat-map":13}],12:[function(require,module,exports){ + +},{}],13:[function(require,module,exports){ +module.exports = function (xs, fn) { + var res = []; + for (var i = 0; i < xs.length; i++) { + var x = fn(xs[i], i); + if (isArray(x)) res.push.apply(res, x); + else res.push(x); + } + return res; +}; + +var isArray = Array.isArray || function (xs) { + return Object.prototype.toString.call(xs) === '[object Array]'; +}; + +},{}],14:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +function EventEmitter() { + this._events = this._events || {}; + this._maxListeners = this._maxListeners || undefined; +} +module.exports = EventEmitter; + +// Backwards-compat with node 0.10.x +EventEmitter.EventEmitter = EventEmitter; + +EventEmitter.prototype._events = undefined; +EventEmitter.prototype._maxListeners = undefined; + +// By default EventEmitters will print a warning if more than 10 listeners are +// added to it. This is a useful default which helps finding memory leaks. +EventEmitter.defaultMaxListeners = 10; + +// Obviously not all Emitters should be limited to 10. This function allows +// that to be increased. Set to zero for unlimited. +EventEmitter.prototype.setMaxListeners = function(n) { + if (!isNumber(n) || n < 0 || isNaN(n)) + throw TypeError('n must be a positive number'); + this._maxListeners = n; + return this; +}; + +EventEmitter.prototype.emit = function(type) { + var er, handler, len, args, i, listeners; + + if (!this._events) + this._events = {}; + + // If there is no 'error' event listener then throw. + if (type === 'error') { + if (!this._events.error || + (isObject(this._events.error) && !this._events.error.length)) { + er = arguments[1]; + if (er instanceof Error) { + throw er; // Unhandled 'error' event + } + throw TypeError('Uncaught, unspecified "error" event.'); + } + } + + handler = this._events[type]; + + if (isUndefined(handler)) + return false; + + if (isFunction(handler)) { + switch (arguments.length) { + // fast cases + case 1: + handler.call(this); + break; + case 2: + handler.call(this, arguments[1]); + break; + case 3: + handler.call(this, arguments[1], arguments[2]); + break; + // slower + default: + len = arguments.length; + args = new Array(len - 1); + for (i = 1; i < len; i++) + args[i - 1] = arguments[i]; + handler.apply(this, args); + } + } else if (isObject(handler)) { + len = arguments.length; + args = new Array(len - 1); + for (i = 1; i < len; i++) + args[i - 1] = arguments[i]; + + listeners = handler.slice(); + len = listeners.length; + for (i = 0; i < len; i++) + listeners[i].apply(this, args); + } + + return true; +}; + +EventEmitter.prototype.addListener = function(type, listener) { + var m; + + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + if (!this._events) + this._events = {}; + + // To avoid recursion in the case that type === "newListener"! Before + // adding it to the listeners, first emit "newListener". + if (this._events.newListener) + this.emit('newListener', type, + isFunction(listener.listener) ? + listener.listener : listener); + + if (!this._events[type]) + // Optimize the case of one listener. Don't need the extra array object. + this._events[type] = listener; + else if (isObject(this._events[type])) + // If we've already got an array, just append. + this._events[type].push(listener); + else + // Adding the second element, need to change to array. + this._events[type] = [this._events[type], listener]; + + // Check for listener leak + if (isObject(this._events[type]) && !this._events[type].warned) { + var m; + if (!isUndefined(this._maxListeners)) { + m = this._maxListeners; + } else { + m = EventEmitter.defaultMaxListeners; + } + + if (m && m > 0 && this._events[type].length > m) { + this._events[type].warned = true; + console.error('(node) warning: possible EventEmitter memory ' + + 'leak detected. %d listeners added. ' + + 'Use emitter.setMaxListeners() to increase limit.', + this._events[type].length); + if (typeof console.trace === 'function') { + // not supported in IE 10 + console.trace(); + } + } + } + + return this; +}; + +EventEmitter.prototype.on = EventEmitter.prototype.addListener; + +EventEmitter.prototype.once = function(type, listener) { + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + var fired = false; + + function g() { + this.removeListener(type, g); + + if (!fired) { + fired = true; + listener.apply(this, arguments); + } + } + + g.listener = listener; + this.on(type, g); + + return this; +}; + +// emits a 'removeListener' event iff the listener was removed +EventEmitter.prototype.removeListener = function(type, listener) { + var list, position, length, i; + + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + if (!this._events || !this._events[type]) + return this; + + list = this._events[type]; + length = list.length; + position = -1; + + if (list === listener || + (isFunction(list.listener) && list.listener === listener)) { + delete this._events[type]; + if (this._events.removeListener) + this.emit('removeListener', type, listener); + + } else if (isObject(list)) { + for (i = length; i-- > 0;) { + if (list[i] === listener || + (list[i].listener && list[i].listener === listener)) { + position = i; + break; + } + } + + if (position < 0) + return this; + + if (list.length === 1) { + list.length = 0; + delete this._events[type]; + } else { + list.splice(position, 1); + } + + if (this._events.removeListener) + this.emit('removeListener', type, listener); + } + + return this; +}; + +EventEmitter.prototype.removeAllListeners = function(type) { + var key, listeners; + + if (!this._events) + return this; + + // not listening for removeListener, no need to emit + if (!this._events.removeListener) { + if (arguments.length === 0) + this._events = {}; + else if (this._events[type]) + delete this._events[type]; + return this; + } + + // emit removeListener for all listeners on all events + if (arguments.length === 0) { + for (key in this._events) { + if (key === 'removeListener') continue; + this.removeAllListeners(key); + } + this.removeAllListeners('removeListener'); + this._events = {}; + return this; + } + + listeners = this._events[type]; + + if (isFunction(listeners)) { + this.removeListener(type, listeners); + } else { + // LIFO order + while (listeners.length) + this.removeListener(type, listeners[listeners.length - 1]); + } + delete this._events[type]; + + return this; +}; + +EventEmitter.prototype.listeners = function(type) { + var ret; + if (!this._events || !this._events[type]) + ret = []; + else if (isFunction(this._events[type])) + ret = [this._events[type]]; + else + ret = this._events[type].slice(); + return ret; +}; + +EventEmitter.listenerCount = function(emitter, type) { + var ret; + if (!emitter._events || !emitter._events[type]) + ret = 0; + else if (isFunction(emitter._events[type])) + ret = 1; + else + ret = emitter._events[type].length; + return ret; +}; + +function isFunction(arg) { + return typeof arg === 'function'; +} + +function isNumber(arg) { + return typeof arg === 'number'; +} + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} + +function isUndefined(arg) { + return arg === void 0; +} + +},{}],15:[function(require,module,exports){ +(function (process){ +exports.alphasort = alphasort +exports.alphasorti = alphasorti +exports.setopts = setopts +exports.ownProp = ownProp +exports.makeAbs = makeAbs +exports.finish = finish +exports.mark = mark +exports.isIgnored = isIgnored +exports.childrenIgnored = childrenIgnored + +function ownProp (obj, field) { + return Object.prototype.hasOwnProperty.call(obj, field) +} + +var path = require("path") +var minimatch = require("minimatch") +var isAbsolute = require("path-is-absolute") +var Minimatch = minimatch.Minimatch + +function alphasorti (a, b) { + return a.toLowerCase().localeCompare(b.toLowerCase()) +} + +function alphasort (a, b) { + return a.localeCompare(b) +} + +function setupIgnores (self, options) { + self.ignore = options.ignore || [] + + if (!Array.isArray(self.ignore)) + self.ignore = [self.ignore] + + if (self.ignore.length) { + self.ignore = self.ignore.map(ignoreMap) + } +} + +function ignoreMap (pattern) { + var gmatcher = null + if (pattern.slice(-3) === '/**') { + var gpattern = pattern.replace(/(\/\*\*)+$/, '') + gmatcher = new Minimatch(gpattern) + } + + return { + matcher: new Minimatch(pattern), + gmatcher: gmatcher + } +} + +function setopts (self, pattern, options) { + if (!options) + options = {} + + // base-matching: just use globstar for that. + if (options.matchBase && -1 === pattern.indexOf("/")) { + if (options.noglobstar) { + throw new Error("base matching requires globstar") + } + pattern = "**/" + pattern + } + + self.silent = !!options.silent + self.pattern = pattern + self.strict = options.strict !== false + self.realpath = !!options.realpath + self.realpathCache = options.realpathCache || Object.create(null) + self.follow = !!options.follow + self.dot = !!options.dot + self.mark = !!options.mark + self.nodir = !!options.nodir + if (self.nodir) + self.mark = true + self.sync = !!options.sync + self.nounique = !!options.nounique + self.nonull = !!options.nonull + self.nosort = !!options.nosort + self.nocase = !!options.nocase + self.stat = !!options.stat + self.noprocess = !!options.noprocess + + self.maxLength = options.maxLength || Infinity + self.cache = options.cache || Object.create(null) + self.statCache = options.statCache || Object.create(null) + self.symlinks = options.symlinks || Object.create(null) + + setupIgnores(self, options) + + self.changedCwd = false + var cwd = process.cwd() + if (!ownProp(options, "cwd")) + self.cwd = cwd + else { + self.cwd = options.cwd + self.changedCwd = path.resolve(options.cwd) !== cwd + } + + self.root = options.root || path.resolve(self.cwd, "/") + self.root = path.resolve(self.root) + if (process.platform === "win32") + self.root = self.root.replace(/\\/g, "/") + + self.nomount = !!options.nomount + + // disable comments and negation unless the user explicitly + // passes in false as the option. + options.nonegate = options.nonegate === false ? false : true + options.nocomment = options.nocomment === false ? false : true + deprecationWarning(options) + + self.minimatch = new Minimatch(pattern, options) + self.options = self.minimatch.options +} + +// TODO(isaacs): remove entirely in v6 +// exported to reset in tests +exports.deprecationWarned +function deprecationWarning(options) { + if (!options.nonegate || !options.nocomment) { + if (process.noDeprecation !== true && !exports.deprecationWarned) { + var msg = 'glob WARNING: comments and negation will be disabled in v6' + if (process.throwDeprecation) + throw new Error(msg) + else if (process.traceDeprecation) + console.trace(msg) + else + console.error(msg) + + exports.deprecationWarned = true + } + } +} + +function finish (self) { + var nou = self.nounique + var all = nou ? [] : Object.create(null) + + for (var i = 0, l = self.matches.length; i < l; i ++) { + var matches = self.matches[i] + if (!matches || Object.keys(matches).length === 0) { + if (self.nonull) { + // do like the shell, and spit out the literal glob + var literal = self.minimatch.globSet[i] + if (nou) + all.push(literal) + else + all[literal] = true + } + } else { + // had matches + var m = Object.keys(matches) + if (nou) + all.push.apply(all, m) + else + m.forEach(function (m) { + all[m] = true + }) + } + } + + if (!nou) + all = Object.keys(all) + + if (!self.nosort) + all = all.sort(self.nocase ? alphasorti : alphasort) + + // at *some* point we statted all of these + if (self.mark) { + for (var i = 0; i < all.length; i++) { + all[i] = self._mark(all[i]) + } + if (self.nodir) { + all = all.filter(function (e) { + return !(/\/$/.test(e)) + }) + } + } + + if (self.ignore.length) + all = all.filter(function(m) { + return !isIgnored(self, m) + }) + + self.found = all +} + +function mark (self, p) { + var abs = makeAbs(self, p) + var c = self.cache[abs] + var m = p + if (c) { + var isDir = c === 'DIR' || Array.isArray(c) + var slash = p.slice(-1) === '/' + + if (isDir && !slash) + m += '/' + else if (!isDir && slash) + m = m.slice(0, -1) + + if (m !== p) { + var mabs = makeAbs(self, m) + self.statCache[mabs] = self.statCache[abs] + self.cache[mabs] = self.cache[abs] + } + } + + return m +} + +// lotta situps... +function makeAbs (self, f) { + var abs = f + if (f.charAt(0) === '/') { + abs = path.join(self.root, f) + } else if (isAbsolute(f) || f === '') { + abs = f + } else if (self.changedCwd) { + abs = path.resolve(self.cwd, f) + } else { + abs = path.resolve(f) + } + return abs +} + + +// Return true, if pattern ends with globstar '**', for the accompanying parent directory. +// Ex:- If node_modules/** is the pattern, add 'node_modules' to ignore list along with it's contents +function isIgnored (self, path) { + if (!self.ignore.length) + return false + + return self.ignore.some(function(item) { + return item.matcher.match(path) || !!(item.gmatcher && item.gmatcher.match(path)) + }) +} + +function childrenIgnored (self, path) { + if (!self.ignore.length) + return false + + return self.ignore.some(function(item) { + return !!(item.gmatcher && item.gmatcher.match(path)) + }) +} + +}).call(this,require('_process')) +},{"_process":24,"minimatch":20,"path":22,"path-is-absolute":23}],16:[function(require,module,exports){ +(function (process){ +// Approach: +// +// 1. Get the minimatch set +// 2. For each pattern in the set, PROCESS(pattern, false) +// 3. Store matches per-set, then uniq them +// +// PROCESS(pattern, inGlobStar) +// Get the first [n] items from pattern that are all strings +// Join these together. This is PREFIX. +// If there is no more remaining, then stat(PREFIX) and +// add to matches if it succeeds. END. +// +// If inGlobStar and PREFIX is symlink and points to dir +// set ENTRIES = [] +// else readdir(PREFIX) as ENTRIES +// If fail, END +// +// with ENTRIES +// If pattern[n] is GLOBSTAR +// // handle the case where the globstar match is empty +// // by pruning it out, and testing the resulting pattern +// PROCESS(pattern[0..n] + pattern[n+1 .. $], false) +// // handle other cases. +// for ENTRY in ENTRIES (not dotfiles) +// // attach globstar + tail onto the entry +// // Mark that this entry is a globstar match +// PROCESS(pattern[0..n] + ENTRY + pattern[n .. $], true) +// +// else // not globstar +// for ENTRY in ENTRIES (not dotfiles, unless pattern[n] is dot) +// Test ENTRY against pattern[n] +// If fails, continue +// If passes, PROCESS(pattern[0..n] + item + pattern[n+1 .. $]) +// +// Caveat: +// Cache all stats and readdirs results to minimize syscall. Since all +// we ever care about is existence and directory-ness, we can just keep +// `true` for files, and [children,...] for directories, or `false` for +// things that don't exist. + +module.exports = glob + +var fs = require('fs') +var minimatch = require('minimatch') +var Minimatch = minimatch.Minimatch +var inherits = require('inherits') +var EE = require('events').EventEmitter +var path = require('path') +var assert = require('assert') +var isAbsolute = require('path-is-absolute') +var globSync = require('./sync.js') +var common = require('./common.js') +var alphasort = common.alphasort +var alphasorti = common.alphasorti +var setopts = common.setopts +var ownProp = common.ownProp +var inflight = require('inflight') +var util = require('util') +var childrenIgnored = common.childrenIgnored +var isIgnored = common.isIgnored + +var once = require('once') + +function glob (pattern, options, cb) { + if (typeof options === 'function') cb = options, options = {} + if (!options) options = {} + + if (options.sync) { + if (cb) + throw new TypeError('callback provided to sync glob') + return globSync(pattern, options) + } + + return new Glob(pattern, options, cb) +} + +glob.sync = globSync +var GlobSync = glob.GlobSync = globSync.GlobSync + +// old api surface +glob.glob = glob + +glob.hasMagic = function (pattern, options_) { + var options = util._extend({}, options_) + options.noprocess = true + + var g = new Glob(pattern, options) + var set = g.minimatch.set + if (set.length > 1) + return true + + for (var j = 0; j < set[0].length; j++) { + if (typeof set[0][j] !== 'string') + return true + } + + return false +} + +glob.Glob = Glob +inherits(Glob, EE) +function Glob (pattern, options, cb) { + if (typeof options === 'function') { + cb = options + options = null + } + + if (options && options.sync) { + if (cb) + throw new TypeError('callback provided to sync glob') + return new GlobSync(pattern, options) + } + + if (!(this instanceof Glob)) + return new Glob(pattern, options, cb) + + setopts(this, pattern, options) + this._didRealPath = false + + // process each pattern in the minimatch set + var n = this.minimatch.set.length + + // The matches are stored as {: true,...} so that + // duplicates are automagically pruned. + // Later, we do an Object.keys() on these. + // Keep them as a list so we can fill in when nonull is set. + this.matches = new Array(n) + + if (typeof cb === 'function') { + cb = once(cb) + this.on('error', cb) + this.on('end', function (matches) { + cb(null, matches) + }) + } + + var self = this + var n = this.minimatch.set.length + this._processing = 0 + this.matches = new Array(n) + + this._emitQueue = [] + this._processQueue = [] + this.paused = false + + if (this.noprocess) + return this + + if (n === 0) + return done() + + for (var i = 0; i < n; i ++) { + this._process(this.minimatch.set[i], i, false, done) + } + + function done () { + --self._processing + if (self._processing <= 0) + self._finish() + } +} + +Glob.prototype._finish = function () { + assert(this instanceof Glob) + if (this.aborted) + return + + if (this.realpath && !this._didRealpath) + return this._realpath() + + common.finish(this) + this.emit('end', this.found) +} + +Glob.prototype._realpath = function () { + if (this._didRealpath) + return + + this._didRealpath = true + + var n = this.matches.length + if (n === 0) + return this._finish() + + var self = this + for (var i = 0; i < this.matches.length; i++) + this._realpathSet(i, next) + + function next () { + if (--n === 0) + self._finish() + } +} + +Glob.prototype._realpathSet = function (index, cb) { + var matchset = this.matches[index] + if (!matchset) + return cb() + + var found = Object.keys(matchset) + var self = this + var n = found.length + + if (n === 0) + return cb() + + var set = this.matches[index] = Object.create(null) + found.forEach(function (p, i) { + // If there's a problem with the stat, then it means that + // one or more of the links in the realpath couldn't be + // resolved. just return the abs value in that case. + p = self._makeAbs(p) + fs.realpath(p, self.realpathCache, function (er, real) { + if (!er) + set[real] = true + else if (er.syscall === 'stat') + set[p] = true + else + self.emit('error', er) // srsly wtf right here + + if (--n === 0) { + self.matches[index] = set + cb() + } + }) + }) +} + +Glob.prototype._mark = function (p) { + return common.mark(this, p) +} + +Glob.prototype._makeAbs = function (f) { + return common.makeAbs(this, f) +} + +Glob.prototype.abort = function () { + this.aborted = true + this.emit('abort') +} + +Glob.prototype.pause = function () { + if (!this.paused) { + this.paused = true + this.emit('pause') + } +} + +Glob.prototype.resume = function () { + if (this.paused) { + this.emit('resume') + this.paused = false + if (this._emitQueue.length) { + var eq = this._emitQueue.slice(0) + this._emitQueue.length = 0 + for (var i = 0; i < eq.length; i ++) { + var e = eq[i] + this._emitMatch(e[0], e[1]) + } + } + if (this._processQueue.length) { + var pq = this._processQueue.slice(0) + this._processQueue.length = 0 + for (var i = 0; i < pq.length; i ++) { + var p = pq[i] + this._processing-- + this._process(p[0], p[1], p[2], p[3]) + } + } + } +} + +Glob.prototype._process = function (pattern, index, inGlobStar, cb) { + assert(this instanceof Glob) + assert(typeof cb === 'function') + + if (this.aborted) + return + + this._processing++ + if (this.paused) { + this._processQueue.push([pattern, index, inGlobStar, cb]) + return + } + + //console.error('PROCESS %d', this._processing, pattern) + + // Get the first [n] parts of pattern that are all strings. + var n = 0 + while (typeof pattern[n] === 'string') { + n ++ + } + // now n is the index of the first one that is *not* a string. + + // see if there's anything else + var prefix + switch (n) { + // if not, then this is rather simple + case pattern.length: + this._processSimple(pattern.join('/'), index, cb) + return + + case 0: + // pattern *starts* with some non-trivial item. + // going to readdir(cwd), but not include the prefix in matches. + prefix = null + break + + default: + // pattern has some string bits in the front. + // whatever it starts with, whether that's 'absolute' like /foo/bar, + // or 'relative' like '../baz' + prefix = pattern.slice(0, n).join('/') + break + } + + var remain = pattern.slice(n) + + // get the list of entries. + var read + if (prefix === null) + read = '.' + else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) { + if (!prefix || !isAbsolute(prefix)) + prefix = '/' + prefix + read = prefix + } else + read = prefix + + var abs = this._makeAbs(read) + + //if ignored, skip _processing + if (childrenIgnored(this, read)) + return cb() + + var isGlobStar = remain[0] === minimatch.GLOBSTAR + if (isGlobStar) + this._processGlobStar(prefix, read, abs, remain, index, inGlobStar, cb) + else + this._processReaddir(prefix, read, abs, remain, index, inGlobStar, cb) +} + +Glob.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar, cb) { + var self = this + this._readdir(abs, inGlobStar, function (er, entries) { + return self._processReaddir2(prefix, read, abs, remain, index, inGlobStar, entries, cb) + }) +} + +Glob.prototype._processReaddir2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) { + + // if the abs isn't a dir, then nothing can match! + if (!entries) + return cb() + + // It will only match dot entries if it starts with a dot, or if + // dot is set. Stuff like @(.foo|.bar) isn't allowed. + var pn = remain[0] + var negate = !!this.minimatch.negate + var rawGlob = pn._glob + var dotOk = this.dot || rawGlob.charAt(0) === '.' + + var matchedEntries = [] + for (var i = 0; i < entries.length; i++) { + var e = entries[i] + if (e.charAt(0) !== '.' || dotOk) { + var m + if (negate && !prefix) { + m = !e.match(pn) + } else { + m = e.match(pn) + } + if (m) + matchedEntries.push(e) + } + } + + //console.error('prd2', prefix, entries, remain[0]._glob, matchedEntries) + + var len = matchedEntries.length + // If there are no matched entries, then nothing matches. + if (len === 0) + return cb() + + // if this is the last remaining pattern bit, then no need for + // an additional stat *unless* the user has specified mark or + // stat explicitly. We know they exist, since readdir returned + // them. + + if (remain.length === 1 && !this.mark && !this.stat) { + if (!this.matches[index]) + this.matches[index] = Object.create(null) + + for (var i = 0; i < len; i ++) { + var e = matchedEntries[i] + if (prefix) { + if (prefix !== '/') + e = prefix + '/' + e + else + e = prefix + e + } + + if (e.charAt(0) === '/' && !this.nomount) { + e = path.join(this.root, e) + } + this._emitMatch(index, e) + } + // This was the last one, and no stats were needed + return cb() + } + + // now test all matched entries as stand-ins for that part + // of the pattern. + remain.shift() + for (var i = 0; i < len; i ++) { + var e = matchedEntries[i] + var newPattern + if (prefix) { + if (prefix !== '/') + e = prefix + '/' + e + else + e = prefix + e + } + this._process([e].concat(remain), index, inGlobStar, cb) + } + cb() +} + +Glob.prototype._emitMatch = function (index, e) { + if (this.aborted) + return + + if (this.matches[index][e]) + return + + if (isIgnored(this, e)) + return + + if (this.paused) { + this._emitQueue.push([index, e]) + return + } + + var abs = this._makeAbs(e) + + if (this.nodir) { + var c = this.cache[abs] + if (c === 'DIR' || Array.isArray(c)) + return + } + + if (this.mark) + e = this._mark(e) + + this.matches[index][e] = true + + var st = this.statCache[abs] + if (st) + this.emit('stat', e, st) + + this.emit('match', e) +} + +Glob.prototype._readdirInGlobStar = function (abs, cb) { + if (this.aborted) + return + + // follow all symlinked directories forever + // just proceed as if this is a non-globstar situation + if (this.follow) + return this._readdir(abs, false, cb) + + var lstatkey = 'lstat\0' + abs + var self = this + var lstatcb = inflight(lstatkey, lstatcb_) + + if (lstatcb) + fs.lstat(abs, lstatcb) + + function lstatcb_ (er, lstat) { + if (er) + return cb() + + var isSym = lstat.isSymbolicLink() + self.symlinks[abs] = isSym + + // If it's not a symlink or a dir, then it's definitely a regular file. + // don't bother doing a readdir in that case. + if (!isSym && !lstat.isDirectory()) { + self.cache[abs] = 'FILE' + cb() + } else + self._readdir(abs, false, cb) + } +} + +Glob.prototype._readdir = function (abs, inGlobStar, cb) { + if (this.aborted) + return + + cb = inflight('readdir\0'+abs+'\0'+inGlobStar, cb) + if (!cb) + return + + //console.error('RD %j %j', +inGlobStar, abs) + if (inGlobStar && !ownProp(this.symlinks, abs)) + return this._readdirInGlobStar(abs, cb) + + if (ownProp(this.cache, abs)) { + var c = this.cache[abs] + if (!c || c === 'FILE') + return cb() + + if (Array.isArray(c)) + return cb(null, c) + } + + var self = this + fs.readdir(abs, readdirCb(this, abs, cb)) +} + +function readdirCb (self, abs, cb) { + return function (er, entries) { + if (er) + self._readdirError(abs, er, cb) + else + self._readdirEntries(abs, entries, cb) + } +} + +Glob.prototype._readdirEntries = function (abs, entries, cb) { + if (this.aborted) + return + + // if we haven't asked to stat everything, then just + // assume that everything in there exists, so we can avoid + // having to stat it a second time. + if (!this.mark && !this.stat) { + for (var i = 0; i < entries.length; i ++) { + var e = entries[i] + if (abs === '/') + e = abs + e + else + e = abs + '/' + e + this.cache[e] = true + } + } + + this.cache[abs] = entries + return cb(null, entries) +} + +Glob.prototype._readdirError = function (f, er, cb) { + if (this.aborted) + return + + // handle errors, and cache the information + switch (er.code) { + case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205 + case 'ENOTDIR': // totally normal. means it *does* exist. + this.cache[this._makeAbs(f)] = 'FILE' + break + + case 'ENOENT': // not terribly unusual + case 'ELOOP': + case 'ENAMETOOLONG': + case 'UNKNOWN': + this.cache[this._makeAbs(f)] = false + break + + default: // some unusual error. Treat as failure. + this.cache[this._makeAbs(f)] = false + if (this.strict) { + this.emit('error', er) + // If the error is handled, then we abort + // if not, we threw out of here + this.abort() + } + if (!this.silent) + console.error('glob error', er) + break + } + + return cb() +} + +Glob.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar, cb) { + var self = this + this._readdir(abs, inGlobStar, function (er, entries) { + self._processGlobStar2(prefix, read, abs, remain, index, inGlobStar, entries, cb) + }) +} + + +Glob.prototype._processGlobStar2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) { + //console.error('pgs2', prefix, remain[0], entries) + + // no entries means not a dir, so it can never have matches + // foo.txt/** doesn't match foo.txt + if (!entries) + return cb() + + // test without the globstar, and with every child both below + // and replacing the globstar. + var remainWithoutGlobStar = remain.slice(1) + var gspref = prefix ? [ prefix ] : [] + var noGlobStar = gspref.concat(remainWithoutGlobStar) + + // the noGlobStar pattern exits the inGlobStar state + this._process(noGlobStar, index, false, cb) + + var isSym = this.symlinks[abs] + var len = entries.length + + // If it's a symlink, and we're in a globstar, then stop + if (isSym && inGlobStar) + return cb() + + for (var i = 0; i < len; i++) { + var e = entries[i] + if (e.charAt(0) === '.' && !this.dot) + continue + + // these two cases enter the inGlobStar state + var instead = gspref.concat(entries[i], remainWithoutGlobStar) + this._process(instead, index, true, cb) + + var below = gspref.concat(entries[i], remain) + this._process(below, index, true, cb) + } + + cb() +} + +Glob.prototype._processSimple = function (prefix, index, cb) { + // XXX review this. Shouldn't it be doing the mounting etc + // before doing stat? kinda weird? + var self = this + this._stat(prefix, function (er, exists) { + self._processSimple2(prefix, index, er, exists, cb) + }) +} +Glob.prototype._processSimple2 = function (prefix, index, er, exists, cb) { + + //console.error('ps2', prefix, exists) + + if (!this.matches[index]) + this.matches[index] = Object.create(null) + + // If it doesn't exist, then just mark the lack of results + if (!exists) + return cb() + + if (prefix && isAbsolute(prefix) && !this.nomount) { + var trail = /[\/\\]$/.test(prefix) + if (prefix.charAt(0) === '/') { + prefix = path.join(this.root, prefix) + } else { + prefix = path.resolve(this.root, prefix) + if (trail) + prefix += '/' + } + } + + if (process.platform === 'win32') + prefix = prefix.replace(/\\/g, '/') + + // Mark this as a match + this._emitMatch(index, prefix) + cb() +} + +// Returns either 'DIR', 'FILE', or false +Glob.prototype._stat = function (f, cb) { + var abs = this._makeAbs(f) + var needDir = f.slice(-1) === '/' + + if (f.length > this.maxLength) + return cb() + + if (!this.stat && ownProp(this.cache, abs)) { + var c = this.cache[abs] + + if (Array.isArray(c)) + c = 'DIR' + + // It exists, but maybe not how we need it + if (!needDir || c === 'DIR') + return cb(null, c) + + if (needDir && c === 'FILE') + return cb() + + // otherwise we have to stat, because maybe c=true + // if we know it exists, but not what it is. + } + + var exists + var stat = this.statCache[abs] + if (stat !== undefined) { + if (stat === false) + return cb(null, stat) + else { + var type = stat.isDirectory() ? 'DIR' : 'FILE' + if (needDir && type === 'FILE') + return cb() + else + return cb(null, type, stat) + } + } + + var self = this + var statcb = inflight('stat\0' + abs, lstatcb_) + if (statcb) + fs.lstat(abs, statcb) + + function lstatcb_ (er, lstat) { + if (lstat && lstat.isSymbolicLink()) { + // If it's a symlink, then treat it as the target, unless + // the target does not exist, then treat it as a file. + return fs.stat(abs, function (er, stat) { + if (er) + self._stat2(f, abs, null, lstat, cb) + else + self._stat2(f, abs, er, stat, cb) + }) + } else { + self._stat2(f, abs, er, lstat, cb) + } + } +} + +Glob.prototype._stat2 = function (f, abs, er, stat, cb) { + if (er) { + this.statCache[abs] = false + return cb() + } + + var needDir = f.slice(-1) === '/' + this.statCache[abs] = stat + + if (abs.slice(-1) === '/' && !stat.isDirectory()) + return cb(null, false, stat) + + var c = stat.isDirectory() ? 'DIR' : 'FILE' + this.cache[abs] = this.cache[abs] || c + + if (needDir && c !== 'DIR') + return cb() + + return cb(null, c, stat) +} + +}).call(this,require('_process')) +},{"./common.js":15,"./sync.js":17,"_process":24,"assert":9,"events":14,"fs":12,"inflight":18,"inherits":19,"minimatch":20,"once":21,"path":22,"path-is-absolute":23,"util":28}],17:[function(require,module,exports){ +(function (process){ +module.exports = globSync +globSync.GlobSync = GlobSync + +var fs = require('fs') +var minimatch = require('minimatch') +var Minimatch = minimatch.Minimatch +var Glob = require('./glob.js').Glob +var util = require('util') +var path = require('path') +var assert = require('assert') +var isAbsolute = require('path-is-absolute') +var common = require('./common.js') +var alphasort = common.alphasort +var alphasorti = common.alphasorti +var setopts = common.setopts +var ownProp = common.ownProp +var childrenIgnored = common.childrenIgnored + +function globSync (pattern, options) { + if (typeof options === 'function' || arguments.length === 3) + throw new TypeError('callback provided to sync glob\n'+ + 'See: https://github.com/isaacs/node-glob/issues/167') + + return new GlobSync(pattern, options).found +} + +function GlobSync (pattern, options) { + if (!pattern) + throw new Error('must provide pattern') + + if (typeof options === 'function' || arguments.length === 3) + throw new TypeError('callback provided to sync glob\n'+ + 'See: https://github.com/isaacs/node-glob/issues/167') + + if (!(this instanceof GlobSync)) + return new GlobSync(pattern, options) + + setopts(this, pattern, options) + + if (this.noprocess) + return this + + var n = this.minimatch.set.length + this.matches = new Array(n) + for (var i = 0; i < n; i ++) { + this._process(this.minimatch.set[i], i, false) + } + this._finish() +} + +GlobSync.prototype._finish = function () { + assert(this instanceof GlobSync) + if (this.realpath) { + var self = this + this.matches.forEach(function (matchset, index) { + var set = self.matches[index] = Object.create(null) + for (var p in matchset) { + try { + p = self._makeAbs(p) + var real = fs.realpathSync(p, self.realpathCache) + set[real] = true + } catch (er) { + if (er.syscall === 'stat') + set[self._makeAbs(p)] = true + else + throw er + } + } + }) + } + common.finish(this) +} + + +GlobSync.prototype._process = function (pattern, index, inGlobStar) { + assert(this instanceof GlobSync) + + // Get the first [n] parts of pattern that are all strings. + var n = 0 + while (typeof pattern[n] === 'string') { + n ++ + } + // now n is the index of the first one that is *not* a string. + + // See if there's anything else + var prefix + switch (n) { + // if not, then this is rather simple + case pattern.length: + this._processSimple(pattern.join('/'), index) + return + + case 0: + // pattern *starts* with some non-trivial item. + // going to readdir(cwd), but not include the prefix in matches. + prefix = null + break + + default: + // pattern has some string bits in the front. + // whatever it starts with, whether that's 'absolute' like /foo/bar, + // or 'relative' like '../baz' + prefix = pattern.slice(0, n).join('/') + break + } + + var remain = pattern.slice(n) + + // get the list of entries. + var read + if (prefix === null) + read = '.' + else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) { + if (!prefix || !isAbsolute(prefix)) + prefix = '/' + prefix + read = prefix + } else + read = prefix + + var abs = this._makeAbs(read) + + //if ignored, skip processing + if (childrenIgnored(this, read)) + return + + var isGlobStar = remain[0] === minimatch.GLOBSTAR + if (isGlobStar) + this._processGlobStar(prefix, read, abs, remain, index, inGlobStar) + else + this._processReaddir(prefix, read, abs, remain, index, inGlobStar) +} + + +GlobSync.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar) { + var entries = this._readdir(abs, inGlobStar) + + // if the abs isn't a dir, then nothing can match! + if (!entries) + return + + // It will only match dot entries if it starts with a dot, or if + // dot is set. Stuff like @(.foo|.bar) isn't allowed. + var pn = remain[0] + var negate = !!this.minimatch.negate + var rawGlob = pn._glob + var dotOk = this.dot || rawGlob.charAt(0) === '.' + + var matchedEntries = [] + for (var i = 0; i < entries.length; i++) { + var e = entries[i] + if (e.charAt(0) !== '.' || dotOk) { + var m + if (negate && !prefix) { + m = !e.match(pn) + } else { + m = e.match(pn) + } + if (m) + matchedEntries.push(e) + } + } + + var len = matchedEntries.length + // If there are no matched entries, then nothing matches. + if (len === 0) + return + + // if this is the last remaining pattern bit, then no need for + // an additional stat *unless* the user has specified mark or + // stat explicitly. We know they exist, since readdir returned + // them. + + if (remain.length === 1 && !this.mark && !this.stat) { + if (!this.matches[index]) + this.matches[index] = Object.create(null) + + for (var i = 0; i < len; i ++) { + var e = matchedEntries[i] + if (prefix) { + if (prefix.slice(-1) !== '/') + e = prefix + '/' + e + else + e = prefix + e + } + + if (e.charAt(0) === '/' && !this.nomount) { + e = path.join(this.root, e) + } + this.matches[index][e] = true + } + // This was the last one, and no stats were needed + return + } + + // now test all matched entries as stand-ins for that part + // of the pattern. + remain.shift() + for (var i = 0; i < len; i ++) { + var e = matchedEntries[i] + var newPattern + if (prefix) + newPattern = [prefix, e] + else + newPattern = [e] + this._process(newPattern.concat(remain), index, inGlobStar) + } +} + + +GlobSync.prototype._emitMatch = function (index, e) { + var abs = this._makeAbs(e) + if (this.mark) + e = this._mark(e) + + if (this.matches[index][e]) + return + + if (this.nodir) { + var c = this.cache[this._makeAbs(e)] + if (c === 'DIR' || Array.isArray(c)) + return + } + + this.matches[index][e] = true + if (this.stat) + this._stat(e) +} + + +GlobSync.prototype._readdirInGlobStar = function (abs) { + // follow all symlinked directories forever + // just proceed as if this is a non-globstar situation + if (this.follow) + return this._readdir(abs, false) + + var entries + var lstat + var stat + try { + lstat = fs.lstatSync(abs) + } catch (er) { + // lstat failed, doesn't exist + return null + } + + var isSym = lstat.isSymbolicLink() + this.symlinks[abs] = isSym + + // If it's not a symlink or a dir, then it's definitely a regular file. + // don't bother doing a readdir in that case. + if (!isSym && !lstat.isDirectory()) + this.cache[abs] = 'FILE' + else + entries = this._readdir(abs, false) + + return entries +} + +GlobSync.prototype._readdir = function (abs, inGlobStar) { + var entries + + if (inGlobStar && !ownProp(this.symlinks, abs)) + return this._readdirInGlobStar(abs) + + if (ownProp(this.cache, abs)) { + var c = this.cache[abs] + if (!c || c === 'FILE') + return null + + if (Array.isArray(c)) + return c + } + + try { + return this._readdirEntries(abs, fs.readdirSync(abs)) + } catch (er) { + this._readdirError(abs, er) + return null + } +} + +GlobSync.prototype._readdirEntries = function (abs, entries) { + // if we haven't asked to stat everything, then just + // assume that everything in there exists, so we can avoid + // having to stat it a second time. + if (!this.mark && !this.stat) { + for (var i = 0; i < entries.length; i ++) { + var e = entries[i] + if (abs === '/') + e = abs + e + else + e = abs + '/' + e + this.cache[e] = true + } + } + + this.cache[abs] = entries + + // mark and cache dir-ness + return entries +} + +GlobSync.prototype._readdirError = function (f, er) { + // handle errors, and cache the information + switch (er.code) { + case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205 + case 'ENOTDIR': // totally normal. means it *does* exist. + this.cache[this._makeAbs(f)] = 'FILE' + break + + case 'ENOENT': // not terribly unusual + case 'ELOOP': + case 'ENAMETOOLONG': + case 'UNKNOWN': + this.cache[this._makeAbs(f)] = false + break + + default: // some unusual error. Treat as failure. + this.cache[this._makeAbs(f)] = false + if (this.strict) + throw er + if (!this.silent) + console.error('glob error', er) + break + } +} + +GlobSync.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar) { + + var entries = this._readdir(abs, inGlobStar) + + // no entries means not a dir, so it can never have matches + // foo.txt/** doesn't match foo.txt + if (!entries) + return + + // test without the globstar, and with every child both below + // and replacing the globstar. + var remainWithoutGlobStar = remain.slice(1) + var gspref = prefix ? [ prefix ] : [] + var noGlobStar = gspref.concat(remainWithoutGlobStar) + + // the noGlobStar pattern exits the inGlobStar state + this._process(noGlobStar, index, false) + + var len = entries.length + var isSym = this.symlinks[abs] + + // If it's a symlink, and we're in a globstar, then stop + if (isSym && inGlobStar) + return + + for (var i = 0; i < len; i++) { + var e = entries[i] + if (e.charAt(0) === '.' && !this.dot) + continue + + // these two cases enter the inGlobStar state + var instead = gspref.concat(entries[i], remainWithoutGlobStar) + this._process(instead, index, true) + + var below = gspref.concat(entries[i], remain) + this._process(below, index, true) + } +} + +GlobSync.prototype._processSimple = function (prefix, index) { + // XXX review this. Shouldn't it be doing the mounting etc + // before doing stat? kinda weird? + var exists = this._stat(prefix) + + if (!this.matches[index]) + this.matches[index] = Object.create(null) + + // If it doesn't exist, then just mark the lack of results + if (!exists) + return + + if (prefix && isAbsolute(prefix) && !this.nomount) { + var trail = /[\/\\]$/.test(prefix) + if (prefix.charAt(0) === '/') { + prefix = path.join(this.root, prefix) + } else { + prefix = path.resolve(this.root, prefix) + if (trail) + prefix += '/' + } + } + + if (process.platform === 'win32') + prefix = prefix.replace(/\\/g, '/') + + // Mark this as a match + this.matches[index][prefix] = true +} + +// Returns either 'DIR', 'FILE', or false +GlobSync.prototype._stat = function (f) { + var abs = this._makeAbs(f) + var needDir = f.slice(-1) === '/' + + if (f.length > this.maxLength) + return false + + if (!this.stat && ownProp(this.cache, abs)) { + var c = this.cache[abs] + + if (Array.isArray(c)) + c = 'DIR' + + // It exists, but maybe not how we need it + if (!needDir || c === 'DIR') + return c + + if (needDir && c === 'FILE') + return false + + // otherwise we have to stat, because maybe c=true + // if we know it exists, but not what it is. + } + + var exists + var stat = this.statCache[abs] + if (!stat) { + var lstat + try { + lstat = fs.lstatSync(abs) + } catch (er) { + return false + } + + if (lstat.isSymbolicLink()) { + try { + stat = fs.statSync(abs) + } catch (er) { + stat = lstat + } + } else { + stat = lstat + } + } + + this.statCache[abs] = stat + + var c = stat.isDirectory() ? 'DIR' : 'FILE' + this.cache[abs] = this.cache[abs] || c + + if (needDir && c !== 'DIR') + return false + + return c +} + +GlobSync.prototype._mark = function (p) { + return common.mark(this, p) +} + +GlobSync.prototype._makeAbs = function (f) { + return common.makeAbs(this, f) +} + +}).call(this,require('_process')) +},{"./common.js":15,"./glob.js":16,"_process":24,"assert":9,"fs":12,"minimatch":20,"path":22,"path-is-absolute":23,"util":28}],18:[function(require,module,exports){ +(function (process){ +var wrappy = require('wrappy') +var reqs = Object.create(null) +var once = require('once') + +module.exports = wrappy(inflight) + +function inflight (key, cb) { + if (reqs[key]) { + reqs[key].push(cb) + return null + } else { + reqs[key] = [cb] + return makeres(key) + } +} + +function makeres (key) { + return once(function RES () { + var cbs = reqs[key] + var len = cbs.length + var args = slice(arguments) + + // XXX It's somewhat ambiguous whether a new callback added in this + // pass should be queued for later execution if something in the + // list of callbacks throws, or if it should just be discarded. + // However, it's such an edge case that it hardly matters, and either + // choice is likely as surprising as the other. + // As it happens, we do go ahead and schedule it for later execution. + try { + for (var i = 0; i < len; i++) { + cbs[i].apply(null, args) + } + } finally { + if (cbs.length > len) { + // added more in the interim. + // de-zalgo, just in case, but don't call again. + cbs.splice(0, len) + process.nextTick(function () { + RES.apply(null, args) + }) + } else { + delete reqs[key] + } + } + }) +} + +function slice (args) { + var length = args.length + var array = [] + + for (var i = 0; i < length; i++) array[i] = args[i] + return array +} + +}).call(this,require('_process')) +},{"_process":24,"once":21,"wrappy":29}],19:[function(require,module,exports){ +if (typeof Object.create === 'function') { + // implementation from standard node.js 'util' module + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + ctor.prototype = Object.create(superCtor.prototype, { + constructor: { + value: ctor, + enumerable: false, + writable: true, + configurable: true + } + }); + }; +} else { + // old school shim for old browsers + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + var TempCtor = function () {} + TempCtor.prototype = superCtor.prototype + ctor.prototype = new TempCtor() + ctor.prototype.constructor = ctor + } +} + +},{}],20:[function(require,module,exports){ +module.exports = minimatch +minimatch.Minimatch = Minimatch + +var path = { sep: '/' } +try { + path = require('path') +} catch (er) {} + +var GLOBSTAR = minimatch.GLOBSTAR = Minimatch.GLOBSTAR = {} +var expand = require('brace-expansion') + +var plTypes = { + '!': { open: '(?:(?!(?:', close: '))[^/]*?)'}, + '?': { open: '(?:', close: ')?' }, + '+': { open: '(?:', close: ')+' }, + '*': { open: '(?:', close: ')*' }, + '@': { open: '(?:', close: ')' } +} + +// any single thing other than / +// don't need to escape / when using new RegExp() +var qmark = '[^/]' + +// * => any number of characters +var star = qmark + '*?' + +// ** when dots are allowed. Anything goes, except .. and . +// not (^ or / followed by one or two dots followed by $ or /), +// followed by anything, any number of times. +var twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?' + +// not a ^ or / followed by a dot, +// followed by anything, any number of times. +var twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?' + +// characters that need to be escaped in RegExp. +var reSpecials = charSet('().*{}+?[]^$\\!') + +// "abc" -> { a:true, b:true, c:true } +function charSet (s) { + return s.split('').reduce(function (set, c) { + set[c] = true + return set + }, {}) +} + +// normalizes slashes. +var slashSplit = /\/+/ + +minimatch.filter = filter +function filter (pattern, options) { + options = options || {} + return function (p, i, list) { + return minimatch(p, pattern, options) + } +} + +function ext (a, b) { + a = a || {} + b = b || {} + var t = {} + Object.keys(b).forEach(function (k) { + t[k] = b[k] + }) + Object.keys(a).forEach(function (k) { + t[k] = a[k] + }) + return t +} + +minimatch.defaults = function (def) { + if (!def || !Object.keys(def).length) return minimatch + + var orig = minimatch + + var m = function minimatch (p, pattern, options) { + return orig.minimatch(p, pattern, ext(def, options)) + } + + m.Minimatch = function Minimatch (pattern, options) { + return new orig.Minimatch(pattern, ext(def, options)) + } + + return m +} + +Minimatch.defaults = function (def) { + if (!def || !Object.keys(def).length) return Minimatch + return minimatch.defaults(def).Minimatch +} + +function minimatch (p, pattern, options) { + if (typeof pattern !== 'string') { + throw new TypeError('glob pattern string required') + } + + if (!options) options = {} + + // shortcut: comments match nothing. + if (!options.nocomment && pattern.charAt(0) === '#') { + return false + } + + // "" only matches "" + if (pattern.trim() === '') return p === '' + + return new Minimatch(pattern, options).match(p) +} + +function Minimatch (pattern, options) { + if (!(this instanceof Minimatch)) { + return new Minimatch(pattern, options) + } + + if (typeof pattern !== 'string') { + throw new TypeError('glob pattern string required') + } + + if (!options) options = {} + pattern = pattern.trim() + + // windows support: need to use /, not \ + if (path.sep !== '/') { + pattern = pattern.split(path.sep).join('/') + } + + this.options = options + this.set = [] + this.pattern = pattern + this.regexp = null + this.negate = false + this.comment = false + this.empty = false + + // make the set of regexps etc. + this.make() +} + +Minimatch.prototype.debug = function () {} + +Minimatch.prototype.make = make +function make () { + // don't do it more than once. + if (this._made) return + + var pattern = this.pattern + var options = this.options + + // empty patterns and comments match nothing. + if (!options.nocomment && pattern.charAt(0) === '#') { + this.comment = true + return + } + if (!pattern) { + this.empty = true + return + } + + // step 1: figure out negation, etc. + this.parseNegate() + + // step 2: expand braces + var set = this.globSet = this.braceExpand() + + if (options.debug) this.debug = console.error + + this.debug(this.pattern, set) + + // step 3: now we have a set, so turn each one into a series of path-portion + // matching patterns. + // These will be regexps, except in the case of "**", which is + // set to the GLOBSTAR object for globstar behavior, + // and will not contain any / characters + set = this.globParts = set.map(function (s) { + return s.split(slashSplit) + }) + + this.debug(this.pattern, set) + + // glob --> regexps + set = set.map(function (s, si, set) { + return s.map(this.parse, this) + }, this) + + this.debug(this.pattern, set) + + // filter out everything that didn't compile properly. + set = set.filter(function (s) { + return s.indexOf(false) === -1 + }) + + this.debug(this.pattern, set) + + this.set = set +} + +Minimatch.prototype.parseNegate = parseNegate +function parseNegate () { + var pattern = this.pattern + var negate = false + var options = this.options + var negateOffset = 0 + + if (options.nonegate) return + + for (var i = 0, l = pattern.length + ; i < l && pattern.charAt(i) === '!' + ; i++) { + negate = !negate + negateOffset++ + } + + if (negateOffset) this.pattern = pattern.substr(negateOffset) + this.negate = negate +} + +// Brace expansion: +// a{b,c}d -> abd acd +// a{b,}c -> abc ac +// a{0..3}d -> a0d a1d a2d a3d +// a{b,c{d,e}f}g -> abg acdfg acefg +// a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg +// +// Invalid sets are not expanded. +// a{2..}b -> a{2..}b +// a{b}c -> a{b}c +minimatch.braceExpand = function (pattern, options) { + return braceExpand(pattern, options) +} + +Minimatch.prototype.braceExpand = braceExpand + +function braceExpand (pattern, options) { + if (!options) { + if (this instanceof Minimatch) { + options = this.options + } else { + options = {} + } + } + + pattern = typeof pattern === 'undefined' + ? this.pattern : pattern + + if (typeof pattern === 'undefined') { + throw new TypeError('undefined pattern') + } + + if (options.nobrace || + !pattern.match(/\{.*\}/)) { + // shortcut. no need to expand. + return [pattern] + } + + return expand(pattern) +} + +// parse a component of the expanded set. +// At this point, no pattern may contain "/" in it +// so we're going to return a 2d array, where each entry is the full +// pattern, split on '/', and then turned into a regular expression. +// A regexp is made at the end which joins each array with an +// escaped /, and another full one which joins each regexp with |. +// +// Following the lead of Bash 4.1, note that "**" only has special meaning +// when it is the *only* thing in a path portion. Otherwise, any series +// of * is equivalent to a single *. Globstar behavior is enabled by +// default, and can be disabled by setting options.noglobstar. +Minimatch.prototype.parse = parse +var SUBPARSE = {} +function parse (pattern, isSub) { + if (pattern.length > 1024 * 64) { + throw new TypeError('pattern is too long') + } + + var options = this.options + + // shortcuts + if (!options.noglobstar && pattern === '**') return GLOBSTAR + if (pattern === '') return '' + + var re = '' + var hasMagic = !!options.nocase + var escaping = false + // ? => one single character + var patternListStack = [] + var negativeLists = [] + var stateChar + var inClass = false + var reClassStart = -1 + var classStart = -1 + // . and .. never match anything that doesn't start with ., + // even when options.dot is set. + var patternStart = pattern.charAt(0) === '.' ? '' // anything + // not (start or / followed by . or .. followed by / or end) + : options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))' + : '(?!\\.)' + var self = this + + function clearStateChar () { + if (stateChar) { + // we had some state-tracking character + // that wasn't consumed by this pass. + switch (stateChar) { + case '*': + re += star + hasMagic = true + break + case '?': + re += qmark + hasMagic = true + break + default: + re += '\\' + stateChar + break + } + self.debug('clearStateChar %j %j', stateChar, re) + stateChar = false + } + } + + for (var i = 0, len = pattern.length, c + ; (i < len) && (c = pattern.charAt(i)) + ; i++) { + this.debug('%s\t%s %s %j', pattern, i, re, c) + + // skip over any that are escaped. + if (escaping && reSpecials[c]) { + re += '\\' + c + escaping = false + continue + } + + switch (c) { + case '/': + // completely not allowed, even escaped. + // Should already be path-split by now. + return false + + case '\\': + clearStateChar() + escaping = true + continue + + // the various stateChar values + // for the "extglob" stuff. + case '?': + case '*': + case '+': + case '@': + case '!': + this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c) + + // all of those are literals inside a class, except that + // the glob [!a] means [^a] in regexp + if (inClass) { + this.debug(' in class') + if (c === '!' && i === classStart + 1) c = '^' + re += c + continue + } + + // if we already have a stateChar, then it means + // that there was something like ** or +? in there. + // Handle the stateChar, then proceed with this one. + self.debug('call clearStateChar %j', stateChar) + clearStateChar() + stateChar = c + // if extglob is disabled, then +(asdf|foo) isn't a thing. + // just clear the statechar *now*, rather than even diving into + // the patternList stuff. + if (options.noext) clearStateChar() + continue + + case '(': + if (inClass) { + re += '(' + continue + } + + if (!stateChar) { + re += '\\(' + continue + } + + patternListStack.push({ + type: stateChar, + start: i - 1, + reStart: re.length, + open: plTypes[stateChar].open, + close: plTypes[stateChar].close + }) + // negation is (?:(?!js)[^/]*) + re += stateChar === '!' ? '(?:(?!(?:' : '(?:' + this.debug('plType %j %j', stateChar, re) + stateChar = false + continue + + case ')': + if (inClass || !patternListStack.length) { + re += '\\)' + continue + } + + clearStateChar() + hasMagic = true + var pl = patternListStack.pop() + // negation is (?:(?!js)[^/]*) + // The others are (?:) + re += pl.close + if (pl.type === '!') { + negativeLists.push(pl) + } + pl.reEnd = re.length + continue + + case '|': + if (inClass || !patternListStack.length || escaping) { + re += '\\|' + escaping = false + continue + } + + clearStateChar() + re += '|' + continue + + // these are mostly the same in regexp and glob + case '[': + // swallow any state-tracking char before the [ + clearStateChar() + + if (inClass) { + re += '\\' + c + continue + } + + inClass = true + classStart = i + reClassStart = re.length + re += c + continue + + case ']': + // a right bracket shall lose its special + // meaning and represent itself in + // a bracket expression if it occurs + // first in the list. -- POSIX.2 2.8.3.2 + if (i === classStart + 1 || !inClass) { + re += '\\' + c + escaping = false + continue + } + + // handle the case where we left a class open. + // "[z-a]" is valid, equivalent to "\[z-a\]" + if (inClass) { + // split where the last [ was, make sure we don't have + // an invalid re. if so, re-walk the contents of the + // would-be class to re-translate any characters that + // were passed through as-is + // TODO: It would probably be faster to determine this + // without a try/catch and a new RegExp, but it's tricky + // to do safely. For now, this is safe and works. + var cs = pattern.substring(classStart + 1, i) + try { + RegExp('[' + cs + ']') + } catch (er) { + // not a valid class! + var sp = this.parse(cs, SUBPARSE) + re = re.substr(0, reClassStart) + '\\[' + sp[0] + '\\]' + hasMagic = hasMagic || sp[1] + inClass = false + continue + } + } + + // finish up the class. + hasMagic = true + inClass = false + re += c + continue + + default: + // swallow any state char that wasn't consumed + clearStateChar() + + if (escaping) { + // no need + escaping = false + } else if (reSpecials[c] + && !(c === '^' && inClass)) { + re += '\\' + } + + re += c + + } // switch + } // for + + // handle the case where we left a class open. + // "[abc" is valid, equivalent to "\[abc" + if (inClass) { + // split where the last [ was, and escape it + // this is a huge pita. We now have to re-walk + // the contents of the would-be class to re-translate + // any characters that were passed through as-is + cs = pattern.substr(classStart + 1) + sp = this.parse(cs, SUBPARSE) + re = re.substr(0, reClassStart) + '\\[' + sp[0] + hasMagic = hasMagic || sp[1] + } + + // handle the case where we had a +( thing at the *end* + // of the pattern. + // each pattern list stack adds 3 chars, and we need to go through + // and escape any | chars that were passed through as-is for the regexp. + // Go through and escape them, taking care not to double-escape any + // | chars that were already escaped. + for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) { + var tail = re.slice(pl.reStart + pl.open.length) + this.debug('setting tail', re, pl) + // maybe some even number of \, then maybe 1 \, followed by a | + tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, function (_, $1, $2) { + if (!$2) { + // the | isn't already escaped, so escape it. + $2 = '\\' + } + + // need to escape all those slashes *again*, without escaping the + // one that we need for escaping the | character. As it works out, + // escaping an even number of slashes can be done by simply repeating + // it exactly after itself. That's why this trick works. + // + // I am sorry that you have to see this. + return $1 + $1 + $2 + '|' + }) + + this.debug('tail=%j\n %s', tail, tail, pl, re) + var t = pl.type === '*' ? star + : pl.type === '?' ? qmark + : '\\' + pl.type + + hasMagic = true + re = re.slice(0, pl.reStart) + t + '\\(' + tail + } + + // handle trailing things that only matter at the very end. + clearStateChar() + if (escaping) { + // trailing \\ + re += '\\\\' + } + + // only need to apply the nodot start if the re starts with + // something that could conceivably capture a dot + var addPatternStart = false + switch (re.charAt(0)) { + case '.': + case '[': + case '(': addPatternStart = true + } + + // Hack to work around lack of negative lookbehind in JS + // A pattern like: *.!(x).!(y|z) needs to ensure that a name + // like 'a.xyz.yz' doesn't match. So, the first negative + // lookahead, has to look ALL the way ahead, to the end of + // the pattern. + for (var n = negativeLists.length - 1; n > -1; n--) { + var nl = negativeLists[n] + + var nlBefore = re.slice(0, nl.reStart) + var nlFirst = re.slice(nl.reStart, nl.reEnd - 8) + var nlLast = re.slice(nl.reEnd - 8, nl.reEnd) + var nlAfter = re.slice(nl.reEnd) + + nlLast += nlAfter + + // Handle nested stuff like *(*.js|!(*.json)), where open parens + // mean that we should *not* include the ) in the bit that is considered + // "after" the negated section. + var openParensBefore = nlBefore.split('(').length - 1 + var cleanAfter = nlAfter + for (i = 0; i < openParensBefore; i++) { + cleanAfter = cleanAfter.replace(/\)[+*?]?/, '') + } + nlAfter = cleanAfter + + var dollar = '' + if (nlAfter === '' && isSub !== SUBPARSE) { + dollar = '$' + } + var newRe = nlBefore + nlFirst + nlAfter + dollar + nlLast + re = newRe + } + + // if the re is not "" at this point, then we need to make sure + // it doesn't match against an empty path part. + // Otherwise a/* will match a/, which it should not. + if (re !== '' && hasMagic) { + re = '(?=.)' + re + } + + if (addPatternStart) { + re = patternStart + re + } + + // parsing just a piece of a larger pattern. + if (isSub === SUBPARSE) { + return [re, hasMagic] + } + + // skip the regexp for non-magical patterns + // unescape anything in it, though, so that it'll be + // an exact match against a file etc. + if (!hasMagic) { + return globUnescape(pattern) + } + + var flags = options.nocase ? 'i' : '' + try { + var regExp = new RegExp('^' + re + '$', flags) + } catch (er) { + // If it was an invalid regular expression, then it can't match + // anything. This trick looks for a character after the end of + // the string, which is of course impossible, except in multi-line + // mode, but it's not a /m regex. + return new RegExp('$.') + } + + regExp._glob = pattern + regExp._src = re + + return regExp +} + +minimatch.makeRe = function (pattern, options) { + return new Minimatch(pattern, options || {}).makeRe() +} + +Minimatch.prototype.makeRe = makeRe +function makeRe () { + if (this.regexp || this.regexp === false) return this.regexp + + // at this point, this.set is a 2d array of partial + // pattern strings, or "**". + // + // It's better to use .match(). This function shouldn't + // be used, really, but it's pretty convenient sometimes, + // when you just want to work with a regex. + var set = this.set + + if (!set.length) { + this.regexp = false + return this.regexp + } + var options = this.options + + var twoStar = options.noglobstar ? star + : options.dot ? twoStarDot + : twoStarNoDot + var flags = options.nocase ? 'i' : '' + + var re = set.map(function (pattern) { + return pattern.map(function (p) { + return (p === GLOBSTAR) ? twoStar + : (typeof p === 'string') ? regExpEscape(p) + : p._src + }).join('\\\/') + }).join('|') + + // must match entire pattern + // ending in a * or ** will make it less strict. + re = '^(?:' + re + ')$' + + // can match anything, as long as it's not this. + if (this.negate) re = '^(?!' + re + ').*$' + + try { + this.regexp = new RegExp(re, flags) + } catch (ex) { + this.regexp = false + } + return this.regexp +} + +minimatch.match = function (list, pattern, options) { + options = options || {} + var mm = new Minimatch(pattern, options) + list = list.filter(function (f) { + return mm.match(f) + }) + if (mm.options.nonull && !list.length) { + list.push(pattern) + } + return list +} + +Minimatch.prototype.match = match +function match (f, partial) { + this.debug('match', f, this.pattern) + // short-circuit in the case of busted things. + // comments, etc. + if (this.comment) return false + if (this.empty) return f === '' + + if (f === '/' && partial) return true + + var options = this.options + + // windows: need to use /, not \ + if (path.sep !== '/') { + f = f.split(path.sep).join('/') + } + + // treat the test path as a set of pathparts. + f = f.split(slashSplit) + this.debug(this.pattern, 'split', f) + + // just ONE of the pattern sets in this.set needs to match + // in order for it to be valid. If negating, then just one + // match means that we have failed. + // Either way, return on the first hit. + + var set = this.set + this.debug(this.pattern, 'set', set) + + // Find the basename of the path by looking for the last non-empty segment + var filename + var i + for (i = f.length - 1; i >= 0; i--) { + filename = f[i] + if (filename) break + } + + for (i = 0; i < set.length; i++) { + var pattern = set[i] + var file = f + if (options.matchBase && pattern.length === 1) { + file = [filename] + } + var hit = this.matchOne(file, pattern, partial) + if (hit) { + if (options.flipNegate) return true + return !this.negate + } + } + + // didn't get any hits. this is success if it's a negative + // pattern, failure otherwise. + if (options.flipNegate) return false + return this.negate +} + +// set partial to true to test if, for example, +// "/a/b" matches the start of "/*/b/*/d" +// Partial means, if you run out of file before you run +// out of pattern, then that's fine, as long as all +// the parts match. +Minimatch.prototype.matchOne = function (file, pattern, partial) { + var options = this.options + + this.debug('matchOne', + { 'this': this, file: file, pattern: pattern }) + + this.debug('matchOne', file.length, pattern.length) + + for (var fi = 0, + pi = 0, + fl = file.length, + pl = pattern.length + ; (fi < fl) && (pi < pl) + ; fi++, pi++) { + this.debug('matchOne loop') + var p = pattern[pi] + var f = file[fi] + + this.debug(pattern, p, f) + + // should be impossible. + // some invalid regexp stuff in the set. + if (p === false) return false + + if (p === GLOBSTAR) { + this.debug('GLOBSTAR', [pattern, p, f]) + + // "**" + // a/**/b/**/c would match the following: + // a/b/x/y/z/c + // a/x/y/z/b/c + // a/b/x/b/x/c + // a/b/c + // To do this, take the rest of the pattern after + // the **, and see if it would match the file remainder. + // If so, return success. + // If not, the ** "swallows" a segment, and try again. + // This is recursively awful. + // + // a/**/b/**/c matching a/b/x/y/z/c + // - a matches a + // - doublestar + // - matchOne(b/x/y/z/c, b/**/c) + // - b matches b + // - doublestar + // - matchOne(x/y/z/c, c) -> no + // - matchOne(y/z/c, c) -> no + // - matchOne(z/c, c) -> no + // - matchOne(c, c) yes, hit + var fr = fi + var pr = pi + 1 + if (pr === pl) { + this.debug('** at the end') + // a ** at the end will just swallow the rest. + // We have found a match. + // however, it will not swallow /.x, unless + // options.dot is set. + // . and .. are *never* matched by **, for explosively + // exponential reasons. + for (; fi < fl; fi++) { + if (file[fi] === '.' || file[fi] === '..' || + (!options.dot && file[fi].charAt(0) === '.')) return false + } + return true + } + + // ok, let's see if we can swallow whatever we can. + while (fr < fl) { + var swallowee = file[fr] + + this.debug('\nglobstar while', file, fr, pattern, pr, swallowee) + + // XXX remove this slice. Just pass the start index. + if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) { + this.debug('globstar found match!', fr, fl, swallowee) + // found a match. + return true + } else { + // can't swallow "." or ".." ever. + // can only swallow ".foo" when explicitly asked. + if (swallowee === '.' || swallowee === '..' || + (!options.dot && swallowee.charAt(0) === '.')) { + this.debug('dot detected!', file, fr, pattern, pr) + break + } + + // ** swallows a segment, and continue. + this.debug('globstar swallow a segment, and continue') + fr++ + } + } + + // no match was found. + // However, in partial mode, we can't say this is necessarily over. + // If there's more *pattern* left, then + if (partial) { + // ran out of file + this.debug('\n>>> no match, partial?', file, fr, pattern, pr) + if (fr === fl) return true + } + return false + } + + // something other than ** + // non-magic patterns just have to match exactly + // patterns with magic have been turned into regexps. + var hit + if (typeof p === 'string') { + if (options.nocase) { + hit = f.toLowerCase() === p.toLowerCase() + } else { + hit = f === p + } + this.debug('string match', p, f, hit) + } else { + hit = f.match(p) + this.debug('pattern match', p, f, hit) + } + + if (!hit) return false + } + + // Note: ending in / means that we'll get a final "" + // at the end of the pattern. This can only match a + // corresponding "" at the end of the file. + // If the file ends in /, then it can only match a + // a pattern that ends in /, unless the pattern just + // doesn't have any more for it. But, a/b/ should *not* + // match "a/b/*", even though "" matches against the + // [^/]*? pattern, except in partial mode, where it might + // simply not be reached yet. + // However, a/b/ should still satisfy a/* + + // now either we fell off the end of the pattern, or we're done. + if (fi === fl && pi === pl) { + // ran out of pattern and filename at the same time. + // an exact hit! + return true + } else if (fi === fl) { + // ran out of file, but still had pattern left. + // this is ok if we're doing the match as part of + // a glob fs traversal. + return partial + } else if (pi === pl) { + // ran out of pattern, still have file left. + // this is only acceptable if we're on the very last + // empty segment of a file with a trailing slash. + // a/* should match a/b/ + var emptyFileEnd = (fi === fl - 1) && (file[fi] === '') + return emptyFileEnd + } + + // should be unreachable. + throw new Error('wtf?') +} + +// replace stuff like \* with * +function globUnescape (s) { + return s.replace(/\\(.)/g, '$1') +} + +function regExpEscape (s) { + return s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&') +} + +},{"brace-expansion":11,"path":22}],21:[function(require,module,exports){ +var wrappy = require('wrappy') +module.exports = wrappy(once) +module.exports.strict = wrappy(onceStrict) + +once.proto = once(function () { + Object.defineProperty(Function.prototype, 'once', { + value: function () { + return once(this) + }, + configurable: true + }) + + Object.defineProperty(Function.prototype, 'onceStrict', { + value: function () { + return onceStrict(this) + }, + configurable: true + }) +}) + +function once (fn) { + var f = function () { + if (f.called) return f.value + f.called = true + return f.value = fn.apply(this, arguments) + } + f.called = false + return f +} + +function onceStrict (fn) { + var f = function () { + if (f.called) + throw new Error(f.onceError) + f.called = true + return f.value = fn.apply(this, arguments) + } + var name = fn.name || 'Function wrapped with `once`' + f.onceError = name + " shouldn't be called more than once" + f.called = false + return f +} + +},{"wrappy":29}],22:[function(require,module,exports){ +(function (process){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// resolves . and .. elements in a path array with directory names there +// must be no slashes, empty elements, or device names (c:\) in the array +// (so also no leading and trailing slashes - it does not distinguish +// relative and absolute paths) +function normalizeArray(parts, allowAboveRoot) { + // if the path tries to go above the root, `up` ends up > 0 + var up = 0; + for (var i = parts.length - 1; i >= 0; i--) { + var last = parts[i]; + if (last === '.') { + parts.splice(i, 1); + } else if (last === '..') { + parts.splice(i, 1); + up++; + } else if (up) { + parts.splice(i, 1); + up--; + } + } + + // if the path is allowed to go above the root, restore leading ..s + if (allowAboveRoot) { + for (; up--; up) { + parts.unshift('..'); + } + } + + return parts; +} + +// Split a filename into [root, dir, basename, ext], unix version +// 'root' is just a slash, or nothing. +var splitPathRe = + /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/; +var splitPath = function(filename) { + return splitPathRe.exec(filename).slice(1); +}; + +// path.resolve([from ...], to) +// posix version +exports.resolve = function() { + var resolvedPath = '', + resolvedAbsolute = false; + + for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) { + var path = (i >= 0) ? arguments[i] : process.cwd(); + + // Skip empty and invalid entries + if (typeof path !== 'string') { + throw new TypeError('Arguments to path.resolve must be strings'); + } else if (!path) { + continue; + } + + resolvedPath = path + '/' + resolvedPath; + resolvedAbsolute = path.charAt(0) === '/'; + } + + // At this point the path should be resolved to a full absolute path, but + // handle relative paths to be safe (might happen when process.cwd() fails) + + // Normalize the path + resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) { + return !!p; + }), !resolvedAbsolute).join('/'); + + return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.'; +}; + +// path.normalize(path) +// posix version +exports.normalize = function(path) { + var isAbsolute = exports.isAbsolute(path), + trailingSlash = substr(path, -1) === '/'; + + // Normalize the path + path = normalizeArray(filter(path.split('/'), function(p) { + return !!p; + }), !isAbsolute).join('/'); + + if (!path && !isAbsolute) { + path = '.'; + } + if (path && trailingSlash) { + path += '/'; + } + + return (isAbsolute ? '/' : '') + path; +}; + +// posix version +exports.isAbsolute = function(path) { + return path.charAt(0) === '/'; +}; + +// posix version +exports.join = function() { + var paths = Array.prototype.slice.call(arguments, 0); + return exports.normalize(filter(paths, function(p, index) { + if (typeof p !== 'string') { + throw new TypeError('Arguments to path.join must be strings'); + } + return p; + }).join('/')); +}; + + +// path.relative(from, to) +// posix version +exports.relative = function(from, to) { + from = exports.resolve(from).substr(1); + to = exports.resolve(to).substr(1); + + function trim(arr) { + var start = 0; + for (; start < arr.length; start++) { + if (arr[start] !== '') break; + } + + var end = arr.length - 1; + for (; end >= 0; end--) { + if (arr[end] !== '') break; + } + + if (start > end) return []; + return arr.slice(start, end - start + 1); + } + + var fromParts = trim(from.split('/')); + var toParts = trim(to.split('/')); + + var length = Math.min(fromParts.length, toParts.length); + var samePartsLength = length; + for (var i = 0; i < length; i++) { + if (fromParts[i] !== toParts[i]) { + samePartsLength = i; + break; + } + } + + var outputParts = []; + for (var i = samePartsLength; i < fromParts.length; i++) { + outputParts.push('..'); + } + + outputParts = outputParts.concat(toParts.slice(samePartsLength)); + + return outputParts.join('/'); +}; + +exports.sep = '/'; +exports.delimiter = ':'; + +exports.dirname = function(path) { + var result = splitPath(path), + root = result[0], + dir = result[1]; + + if (!root && !dir) { + // No dirname whatsoever + return '.'; + } + + if (dir) { + // It has a dirname, strip trailing slash + dir = dir.substr(0, dir.length - 1); + } + + return root + dir; +}; + + +exports.basename = function(path, ext) { + var f = splitPath(path)[2]; + // TODO: make this comparison case-insensitive on windows? + if (ext && f.substr(-1 * ext.length) === ext) { + f = f.substr(0, f.length - ext.length); + } + return f; +}; + + +exports.extname = function(path) { + return splitPath(path)[3]; +}; + +function filter (xs, f) { + if (xs.filter) return xs.filter(f); + var res = []; + for (var i = 0; i < xs.length; i++) { + if (f(xs[i], i, xs)) res.push(xs[i]); + } + return res; +} + +// String.prototype.substr - negative index don't work in IE8 +var substr = 'ab'.substr(-1) === 'b' + ? function (str, start, len) { return str.substr(start, len) } + : function (str, start, len) { + if (start < 0) start = str.length + start; + return str.substr(start, len); + } +; + +}).call(this,require('_process')) +},{"_process":24}],23:[function(require,module,exports){ +(function (process){ +'use strict'; + +function posix(path) { + return path.charAt(0) === '/'; +} + +function win32(path) { + // https://github.com/nodejs/node/blob/b3fcc245fb25539909ef1d5eaa01dbf92e168633/lib/path.js#L56 + var splitDeviceRe = /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/; + var result = splitDeviceRe.exec(path); + var device = result[1] || ''; + var isUnc = Boolean(device && device.charAt(1) !== ':'); + + // UNC paths are always absolute + return Boolean(result[2] || isUnc); +} + +module.exports = process.platform === 'win32' ? win32 : posix; +module.exports.posix = posix; +module.exports.win32 = win32; + +}).call(this,require('_process')) +},{"_process":24}],24:[function(require,module,exports){ +// shim for using process in browser +var process = module.exports = {}; + +// cached from whatever global is present so that test runners that stub it +// don't break things. But we need to wrap it in a try catch in case it is +// wrapped in strict mode code which doesn't define any globals. It's inside a +// function because try/catches deoptimize in certain engines. + +var cachedSetTimeout; +var cachedClearTimeout; + +function defaultSetTimout() { + throw new Error('setTimeout has not been defined'); +} +function defaultClearTimeout () { + throw new Error('clearTimeout has not been defined'); +} +(function () { + try { + if (typeof setTimeout === 'function') { + cachedSetTimeout = setTimeout; + } else { + cachedSetTimeout = defaultSetTimout; + } + } catch (e) { + cachedSetTimeout = defaultSetTimout; + } + try { + if (typeof clearTimeout === 'function') { + cachedClearTimeout = clearTimeout; + } else { + cachedClearTimeout = defaultClearTimeout; + } + } catch (e) { + cachedClearTimeout = defaultClearTimeout; + } +} ()) +function runTimeout(fun) { + if (cachedSetTimeout === setTimeout) { + //normal enviroments in sane situations + return setTimeout(fun, 0); + } + // if setTimeout wasn't available but was latter defined + if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) { + cachedSetTimeout = setTimeout; + return setTimeout(fun, 0); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedSetTimeout(fun, 0); + } catch(e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedSetTimeout.call(null, fun, 0); + } catch(e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error + return cachedSetTimeout.call(this, fun, 0); + } + } + + +} +function runClearTimeout(marker) { + if (cachedClearTimeout === clearTimeout) { + //normal enviroments in sane situations + return clearTimeout(marker); + } + // if clearTimeout wasn't available but was latter defined + if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) { + cachedClearTimeout = clearTimeout; + return clearTimeout(marker); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedClearTimeout(marker); + } catch (e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedClearTimeout.call(null, marker); + } catch (e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. + // Some versions of I.E. have different rules for clearTimeout vs setTimeout + return cachedClearTimeout.call(this, marker); + } + } + + + +} +var queue = []; +var draining = false; +var currentQueue; +var queueIndex = -1; + +function cleanUpNextTick() { + if (!draining || !currentQueue) { + return; + } + draining = false; + if (currentQueue.length) { + queue = currentQueue.concat(queue); + } else { + queueIndex = -1; + } + if (queue.length) { + drainQueue(); + } +} + +function drainQueue() { + if (draining) { + return; + } + var timeout = runTimeout(cleanUpNextTick); + draining = true; + + var len = queue.length; + while(len) { + currentQueue = queue; + queue = []; + while (++queueIndex < len) { + if (currentQueue) { + currentQueue[queueIndex].run(); + } + } + queueIndex = -1; + len = queue.length; + } + currentQueue = null; + draining = false; + runClearTimeout(timeout); +} + +process.nextTick = function (fun) { + var args = new Array(arguments.length - 1); + if (arguments.length > 1) { + for (var i = 1; i < arguments.length; i++) { + args[i - 1] = arguments[i]; + } + } + queue.push(new Item(fun, args)); + if (queue.length === 1 && !draining) { + runTimeout(drainQueue); + } +}; + +// v8 likes predictible objects +function Item(fun, array) { + this.fun = fun; + this.array = array; +} +Item.prototype.run = function () { + this.fun.apply(null, this.array); +}; +process.title = 'browser'; +process.browser = true; +process.env = {}; +process.argv = []; +process.version = ''; // empty string to avoid regexp issues +process.versions = {}; + +function noop() {} + +process.on = noop; +process.addListener = noop; +process.once = noop; +process.off = noop; +process.removeListener = noop; +process.removeAllListeners = noop; +process.emit = noop; +process.prependListener = noop; +process.prependOnceListener = noop; + +process.listeners = function (name) { return [] } + +process.binding = function (name) { + throw new Error('process.binding is not supported'); +}; + +process.cwd = function () { return '/' }; +process.chdir = function (dir) { + throw new Error('process.chdir is not supported'); +}; +process.umask = function() { return 0; }; + +},{}],25:[function(require,module,exports){ +// Underscore.js 1.8.3 +// http://underscorejs.org +// (c) 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors +// Underscore may be freely distributed under the MIT license. + +(function() { + + // Baseline setup + // -------------- + + // Establish the root object, `window` in the browser, or `exports` on the server. + var root = this; + + // Save the previous value of the `_` variable. + var previousUnderscore = root._; + + // Save bytes in the minified (but not gzipped) version: + var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype; + + // Create quick reference variables for speed access to core prototypes. + var + push = ArrayProto.push, + slice = ArrayProto.slice, + toString = ObjProto.toString, + hasOwnProperty = ObjProto.hasOwnProperty; + + // All **ECMAScript 5** native function implementations that we hope to use + // are declared here. + var + nativeIsArray = Array.isArray, + nativeKeys = Object.keys, + nativeBind = FuncProto.bind, + nativeCreate = Object.create; + + // Naked function reference for surrogate-prototype-swapping. + var Ctor = function(){}; + + // Create a safe reference to the Underscore object for use below. + var _ = function(obj) { + if (obj instanceof _) return obj; + if (!(this instanceof _)) return new _(obj); + this._wrapped = obj; + }; + + // Export the Underscore object for **Node.js**, with + // backwards-compatibility for the old `require()` API. If we're in + // the browser, add `_` as a global object. + if (typeof exports !== 'undefined') { + if (typeof module !== 'undefined' && module.exports) { + exports = module.exports = _; + } + exports._ = _; + } else { + root._ = _; + } + + // Current version. + _.VERSION = '1.8.3'; + + // Internal function that returns an efficient (for current engines) version + // of the passed-in callback, to be repeatedly applied in other Underscore + // functions. + var optimizeCb = function(func, context, argCount) { + if (context === void 0) return func; + switch (argCount == null ? 3 : argCount) { + case 1: return function(value) { + return func.call(context, value); + }; + case 2: return function(value, other) { + return func.call(context, value, other); + }; + case 3: return function(value, index, collection) { + return func.call(context, value, index, collection); + }; + case 4: return function(accumulator, value, index, collection) { + return func.call(context, accumulator, value, index, collection); + }; + } + return function() { + return func.apply(context, arguments); + }; + }; + + // A mostly-internal function to generate callbacks that can be applied + // to each element in a collection, returning the desired result — either + // identity, an arbitrary callback, a property matcher, or a property accessor. + var cb = function(value, context, argCount) { + if (value == null) return _.identity; + if (_.isFunction(value)) return optimizeCb(value, context, argCount); + if (_.isObject(value)) return _.matcher(value); + return _.property(value); + }; + _.iteratee = function(value, context) { + return cb(value, context, Infinity); + }; + + // An internal function for creating assigner functions. + var createAssigner = function(keysFunc, undefinedOnly) { + return function(obj) { + var length = arguments.length; + if (length < 2 || obj == null) return obj; + for (var index = 1; index < length; index++) { + var source = arguments[index], + keys = keysFunc(source), + l = keys.length; + for (var i = 0; i < l; i++) { + var key = keys[i]; + if (!undefinedOnly || obj[key] === void 0) obj[key] = source[key]; + } + } + return obj; + }; + }; + + // An internal function for creating a new object that inherits from another. + var baseCreate = function(prototype) { + if (!_.isObject(prototype)) return {}; + if (nativeCreate) return nativeCreate(prototype); + Ctor.prototype = prototype; + var result = new Ctor; + Ctor.prototype = null; + return result; + }; + + var property = function(key) { + return function(obj) { + return obj == null ? void 0 : obj[key]; + }; + }; + + // Helper for collection methods to determine whether a collection + // should be iterated as an array or as an object + // Related: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength + // Avoids a very nasty iOS 8 JIT bug on ARM-64. #2094 + var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1; + var getLength = property('length'); + var isArrayLike = function(collection) { + var length = getLength(collection); + return typeof length == 'number' && length >= 0 && length <= MAX_ARRAY_INDEX; + }; + + // Collection Functions + // -------------------- + + // The cornerstone, an `each` implementation, aka `forEach`. + // Handles raw objects in addition to array-likes. Treats all + // sparse array-likes as if they were dense. + _.each = _.forEach = function(obj, iteratee, context) { + iteratee = optimizeCb(iteratee, context); + var i, length; + if (isArrayLike(obj)) { + for (i = 0, length = obj.length; i < length; i++) { + iteratee(obj[i], i, obj); + } + } else { + var keys = _.keys(obj); + for (i = 0, length = keys.length; i < length; i++) { + iteratee(obj[keys[i]], keys[i], obj); + } + } + return obj; + }; + + // Return the results of applying the iteratee to each element. + _.map = _.collect = function(obj, iteratee, context) { + iteratee = cb(iteratee, context); + var keys = !isArrayLike(obj) && _.keys(obj), + length = (keys || obj).length, + results = Array(length); + for (var index = 0; index < length; index++) { + var currentKey = keys ? keys[index] : index; + results[index] = iteratee(obj[currentKey], currentKey, obj); + } + return results; + }; + + // Create a reducing function iterating left or right. + function createReduce(dir) { + // Optimized iterator function as using arguments.length + // in the main function will deoptimize the, see #1991. + function iterator(obj, iteratee, memo, keys, index, length) { + for (; index >= 0 && index < length; index += dir) { + var currentKey = keys ? keys[index] : index; + memo = iteratee(memo, obj[currentKey], currentKey, obj); + } + return memo; + } + + return function(obj, iteratee, memo, context) { + iteratee = optimizeCb(iteratee, context, 4); + var keys = !isArrayLike(obj) && _.keys(obj), + length = (keys || obj).length, + index = dir > 0 ? 0 : length - 1; + // Determine the initial value if none is provided. + if (arguments.length < 3) { + memo = obj[keys ? keys[index] : index]; + index += dir; + } + return iterator(obj, iteratee, memo, keys, index, length); + }; + } + + // **Reduce** builds up a single result from a list of values, aka `inject`, + // or `foldl`. + _.reduce = _.foldl = _.inject = createReduce(1); + + // The right-associative version of reduce, also known as `foldr`. + _.reduceRight = _.foldr = createReduce(-1); + + // Return the first value which passes a truth test. Aliased as `detect`. + _.find = _.detect = function(obj, predicate, context) { + var key; + if (isArrayLike(obj)) { + key = _.findIndex(obj, predicate, context); + } else { + key = _.findKey(obj, predicate, context); + } + if (key !== void 0 && key !== -1) return obj[key]; + }; + + // Return all the elements that pass a truth test. + // Aliased as `select`. + _.filter = _.select = function(obj, predicate, context) { + var results = []; + predicate = cb(predicate, context); + _.each(obj, function(value, index, list) { + if (predicate(value, index, list)) results.push(value); + }); + return results; + }; + + // Return all the elements for which a truth test fails. + _.reject = function(obj, predicate, context) { + return _.filter(obj, _.negate(cb(predicate)), context); + }; + + // Determine whether all of the elements match a truth test. + // Aliased as `all`. + _.every = _.all = function(obj, predicate, context) { + predicate = cb(predicate, context); + var keys = !isArrayLike(obj) && _.keys(obj), + length = (keys || obj).length; + for (var index = 0; index < length; index++) { + var currentKey = keys ? keys[index] : index; + if (!predicate(obj[currentKey], currentKey, obj)) return false; + } + return true; + }; + + // Determine if at least one element in the object matches a truth test. + // Aliased as `any`. + _.some = _.any = function(obj, predicate, context) { + predicate = cb(predicate, context); + var keys = !isArrayLike(obj) && _.keys(obj), + length = (keys || obj).length; + for (var index = 0; index < length; index++) { + var currentKey = keys ? keys[index] : index; + if (predicate(obj[currentKey], currentKey, obj)) return true; + } + return false; + }; + + // Determine if the array or object contains a given item (using `===`). + // Aliased as `includes` and `include`. + _.contains = _.includes = _.include = function(obj, item, fromIndex, guard) { + if (!isArrayLike(obj)) obj = _.values(obj); + if (typeof fromIndex != 'number' || guard) fromIndex = 0; + return _.indexOf(obj, item, fromIndex) >= 0; + }; + + // Invoke a method (with arguments) on every item in a collection. + _.invoke = function(obj, method) { + var args = slice.call(arguments, 2); + var isFunc = _.isFunction(method); + return _.map(obj, function(value) { + var func = isFunc ? method : value[method]; + return func == null ? func : func.apply(value, args); + }); + }; + + // Convenience version of a common use case of `map`: fetching a property. + _.pluck = function(obj, key) { + return _.map(obj, _.property(key)); + }; + + // Convenience version of a common use case of `filter`: selecting only objects + // containing specific `key:value` pairs. + _.where = function(obj, attrs) { + return _.filter(obj, _.matcher(attrs)); + }; + + // Convenience version of a common use case of `find`: getting the first object + // containing specific `key:value` pairs. + _.findWhere = function(obj, attrs) { + return _.find(obj, _.matcher(attrs)); + }; + + // Return the maximum element (or element-based computation). + _.max = function(obj, iteratee, context) { + var result = -Infinity, lastComputed = -Infinity, + value, computed; + if (iteratee == null && obj != null) { + obj = isArrayLike(obj) ? obj : _.values(obj); + for (var i = 0, length = obj.length; i < length; i++) { + value = obj[i]; + if (value > result) { + result = value; + } + } + } else { + iteratee = cb(iteratee, context); + _.each(obj, function(value, index, list) { + computed = iteratee(value, index, list); + if (computed > lastComputed || computed === -Infinity && result === -Infinity) { + result = value; + lastComputed = computed; + } + }); + } + return result; + }; + + // Return the minimum element (or element-based computation). + _.min = function(obj, iteratee, context) { + var result = Infinity, lastComputed = Infinity, + value, computed; + if (iteratee == null && obj != null) { + obj = isArrayLike(obj) ? obj : _.values(obj); + for (var i = 0, length = obj.length; i < length; i++) { + value = obj[i]; + if (value < result) { + result = value; + } + } + } else { + iteratee = cb(iteratee, context); + _.each(obj, function(value, index, list) { + computed = iteratee(value, index, list); + if (computed < lastComputed || computed === Infinity && result === Infinity) { + result = value; + lastComputed = computed; + } + }); + } + return result; + }; + + // Shuffle a collection, using the modern version of the + // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle). + _.shuffle = function(obj) { + var set = isArrayLike(obj) ? obj : _.values(obj); + var length = set.length; + var shuffled = Array(length); + for (var index = 0, rand; index < length; index++) { + rand = _.random(0, index); + if (rand !== index) shuffled[index] = shuffled[rand]; + shuffled[rand] = set[index]; + } + return shuffled; + }; + + // Sample **n** random values from a collection. + // If **n** is not specified, returns a single random element. + // The internal `guard` argument allows it to work with `map`. + _.sample = function(obj, n, guard) { + if (n == null || guard) { + if (!isArrayLike(obj)) obj = _.values(obj); + return obj[_.random(obj.length - 1)]; + } + return _.shuffle(obj).slice(0, Math.max(0, n)); + }; + + // Sort the object's values by a criterion produced by an iteratee. + _.sortBy = function(obj, iteratee, context) { + iteratee = cb(iteratee, context); + return _.pluck(_.map(obj, function(value, index, list) { + return { + value: value, + index: index, + criteria: iteratee(value, index, list) + }; + }).sort(function(left, right) { + var a = left.criteria; + var b = right.criteria; + if (a !== b) { + if (a > b || a === void 0) return 1; + if (a < b || b === void 0) return -1; + } + return left.index - right.index; + }), 'value'); + }; + + // An internal function used for aggregate "group by" operations. + var group = function(behavior) { + return function(obj, iteratee, context) { + var result = {}; + iteratee = cb(iteratee, context); + _.each(obj, function(value, index) { + var key = iteratee(value, index, obj); + behavior(result, value, key); + }); + return result; + }; + }; + + // Groups the object's values by a criterion. Pass either a string attribute + // to group by, or a function that returns the criterion. + _.groupBy = group(function(result, value, key) { + if (_.has(result, key)) result[key].push(value); else result[key] = [value]; + }); + + // Indexes the object's values by a criterion, similar to `groupBy`, but for + // when you know that your index values will be unique. + _.indexBy = group(function(result, value, key) { + result[key] = value; + }); + + // Counts instances of an object that group by a certain criterion. Pass + // either a string attribute to count by, or a function that returns the + // criterion. + _.countBy = group(function(result, value, key) { + if (_.has(result, key)) result[key]++; else result[key] = 1; + }); + + // Safely create a real, live array from anything iterable. + _.toArray = function(obj) { + if (!obj) return []; + if (_.isArray(obj)) return slice.call(obj); + if (isArrayLike(obj)) return _.map(obj, _.identity); + return _.values(obj); + }; + + // Return the number of elements in an object. + _.size = function(obj) { + if (obj == null) return 0; + return isArrayLike(obj) ? obj.length : _.keys(obj).length; + }; + + // Split a collection into two arrays: one whose elements all satisfy the given + // predicate, and one whose elements all do not satisfy the predicate. + _.partition = function(obj, predicate, context) { + predicate = cb(predicate, context); + var pass = [], fail = []; + _.each(obj, function(value, key, obj) { + (predicate(value, key, obj) ? pass : fail).push(value); + }); + return [pass, fail]; + }; + + // Array Functions + // --------------- + + // Get the first element of an array. Passing **n** will return the first N + // values in the array. Aliased as `head` and `take`. The **guard** check + // allows it to work with `_.map`. + _.first = _.head = _.take = function(array, n, guard) { + if (array == null) return void 0; + if (n == null || guard) return array[0]; + return _.initial(array, array.length - n); + }; + + // Returns everything but the last entry of the array. Especially useful on + // the arguments object. Passing **n** will return all the values in + // the array, excluding the last N. + _.initial = function(array, n, guard) { + return slice.call(array, 0, Math.max(0, array.length - (n == null || guard ? 1 : n))); + }; + + // Get the last element of an array. Passing **n** will return the last N + // values in the array. + _.last = function(array, n, guard) { + if (array == null) return void 0; + if (n == null || guard) return array[array.length - 1]; + return _.rest(array, Math.max(0, array.length - n)); + }; + + // Returns everything but the first entry of the array. Aliased as `tail` and `drop`. + // Especially useful on the arguments object. Passing an **n** will return + // the rest N values in the array. + _.rest = _.tail = _.drop = function(array, n, guard) { + return slice.call(array, n == null || guard ? 1 : n); + }; + + // Trim out all falsy values from an array. + _.compact = function(array) { + return _.filter(array, _.identity); + }; + + // Internal implementation of a recursive `flatten` function. + var flatten = function(input, shallow, strict, startIndex) { + var output = [], idx = 0; + for (var i = startIndex || 0, length = getLength(input); i < length; i++) { + var value = input[i]; + if (isArrayLike(value) && (_.isArray(value) || _.isArguments(value))) { + //flatten current level of array or arguments object + if (!shallow) value = flatten(value, shallow, strict); + var j = 0, len = value.length; + output.length += len; + while (j < len) { + output[idx++] = value[j++]; + } + } else if (!strict) { + output[idx++] = value; + } + } + return output; + }; + + // Flatten out an array, either recursively (by default), or just one level. + _.flatten = function(array, shallow) { + return flatten(array, shallow, false); + }; + + // Return a version of the array that does not contain the specified value(s). + _.without = function(array) { + return _.difference(array, slice.call(arguments, 1)); + }; + + // Produce a duplicate-free version of the array. If the array has already + // been sorted, you have the option of using a faster algorithm. + // Aliased as `unique`. + _.uniq = _.unique = function(array, isSorted, iteratee, context) { + if (!_.isBoolean(isSorted)) { + context = iteratee; + iteratee = isSorted; + isSorted = false; + } + if (iteratee != null) iteratee = cb(iteratee, context); + var result = []; + var seen = []; + for (var i = 0, length = getLength(array); i < length; i++) { + var value = array[i], + computed = iteratee ? iteratee(value, i, array) : value; + if (isSorted) { + if (!i || seen !== computed) result.push(value); + seen = computed; + } else if (iteratee) { + if (!_.contains(seen, computed)) { + seen.push(computed); + result.push(value); + } + } else if (!_.contains(result, value)) { + result.push(value); + } + } + return result; + }; + + // Produce an array that contains the union: each distinct element from all of + // the passed-in arrays. + _.union = function() { + return _.uniq(flatten(arguments, true, true)); + }; + + // Produce an array that contains every item shared between all the + // passed-in arrays. + _.intersection = function(array) { + var result = []; + var argsLength = arguments.length; + for (var i = 0, length = getLength(array); i < length; i++) { + var item = array[i]; + if (_.contains(result, item)) continue; + for (var j = 1; j < argsLength; j++) { + if (!_.contains(arguments[j], item)) break; + } + if (j === argsLength) result.push(item); + } + return result; + }; + + // Take the difference between one array and a number of other arrays. + // Only the elements present in just the first array will remain. + _.difference = function(array) { + var rest = flatten(arguments, true, true, 1); + return _.filter(array, function(value){ + return !_.contains(rest, value); + }); + }; + + // Zip together multiple lists into a single array -- elements that share + // an index go together. + _.zip = function() { + return _.unzip(arguments); + }; + + // Complement of _.zip. Unzip accepts an array of arrays and groups + // each array's elements on shared indices + _.unzip = function(array) { + var length = array && _.max(array, getLength).length || 0; + var result = Array(length); + + for (var index = 0; index < length; index++) { + result[index] = _.pluck(array, index); + } + return result; + }; + + // Converts lists into objects. Pass either a single array of `[key, value]` + // pairs, or two parallel arrays of the same length -- one of keys, and one of + // the corresponding values. + _.object = function(list, values) { + var result = {}; + for (var i = 0, length = getLength(list); i < length; i++) { + if (values) { + result[list[i]] = values[i]; + } else { + result[list[i][0]] = list[i][1]; + } + } + return result; + }; + + // Generator function to create the findIndex and findLastIndex functions + function createPredicateIndexFinder(dir) { + return function(array, predicate, context) { + predicate = cb(predicate, context); + var length = getLength(array); + var index = dir > 0 ? 0 : length - 1; + for (; index >= 0 && index < length; index += dir) { + if (predicate(array[index], index, array)) return index; + } + return -1; + }; + } + + // Returns the first index on an array-like that passes a predicate test + _.findIndex = createPredicateIndexFinder(1); + _.findLastIndex = createPredicateIndexFinder(-1); + + // Use a comparator function to figure out the smallest index at which + // an object should be inserted so as to maintain order. Uses binary search. + _.sortedIndex = function(array, obj, iteratee, context) { + iteratee = cb(iteratee, context, 1); + var value = iteratee(obj); + var low = 0, high = getLength(array); + while (low < high) { + var mid = Math.floor((low + high) / 2); + if (iteratee(array[mid]) < value) low = mid + 1; else high = mid; + } + return low; + }; + + // Generator function to create the indexOf and lastIndexOf functions + function createIndexFinder(dir, predicateFind, sortedIndex) { + return function(array, item, idx) { + var i = 0, length = getLength(array); + if (typeof idx == 'number') { + if (dir > 0) { + i = idx >= 0 ? idx : Math.max(idx + length, i); + } else { + length = idx >= 0 ? Math.min(idx + 1, length) : idx + length + 1; + } + } else if (sortedIndex && idx && length) { + idx = sortedIndex(array, item); + return array[idx] === item ? idx : -1; + } + if (item !== item) { + idx = predicateFind(slice.call(array, i, length), _.isNaN); + return idx >= 0 ? idx + i : -1; + } + for (idx = dir > 0 ? i : length - 1; idx >= 0 && idx < length; idx += dir) { + if (array[idx] === item) return idx; + } + return -1; + }; + } + + // Return the position of the first occurrence of an item in an array, + // or -1 if the item is not included in the array. + // If the array is large and already in sort order, pass `true` + // for **isSorted** to use binary search. + _.indexOf = createIndexFinder(1, _.findIndex, _.sortedIndex); + _.lastIndexOf = createIndexFinder(-1, _.findLastIndex); + + // Generate an integer Array containing an arithmetic progression. A port of + // the native Python `range()` function. See + // [the Python documentation](http://docs.python.org/library/functions.html#range). + _.range = function(start, stop, step) { + if (stop == null) { + stop = start || 0; + start = 0; + } + step = step || 1; + + var length = Math.max(Math.ceil((stop - start) / step), 0); + var range = Array(length); + + for (var idx = 0; idx < length; idx++, start += step) { + range[idx] = start; + } + + return range; + }; + + // Function (ahem) Functions + // ------------------ + + // Determines whether to execute a function as a constructor + // or a normal function with the provided arguments + var executeBound = function(sourceFunc, boundFunc, context, callingContext, args) { + if (!(callingContext instanceof boundFunc)) return sourceFunc.apply(context, args); + var self = baseCreate(sourceFunc.prototype); + var result = sourceFunc.apply(self, args); + if (_.isObject(result)) return result; + return self; + }; + + // Create a function bound to a given object (assigning `this`, and arguments, + // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if + // available. + _.bind = function(func, context) { + if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1)); + if (!_.isFunction(func)) throw new TypeError('Bind must be called on a function'); + var args = slice.call(arguments, 2); + var bound = function() { + return executeBound(func, bound, context, this, args.concat(slice.call(arguments))); + }; + return bound; + }; + + // Partially apply a function by creating a version that has had some of its + // arguments pre-filled, without changing its dynamic `this` context. _ acts + // as a placeholder, allowing any combination of arguments to be pre-filled. + _.partial = function(func) { + var boundArgs = slice.call(arguments, 1); + var bound = function() { + var position = 0, length = boundArgs.length; + var args = Array(length); + for (var i = 0; i < length; i++) { + args[i] = boundArgs[i] === _ ? arguments[position++] : boundArgs[i]; + } + while (position < arguments.length) args.push(arguments[position++]); + return executeBound(func, bound, this, this, args); + }; + return bound; + }; + + // Bind a number of an object's methods to that object. Remaining arguments + // are the method names to be bound. Useful for ensuring that all callbacks + // defined on an object belong to it. + _.bindAll = function(obj) { + var i, length = arguments.length, key; + if (length <= 1) throw new Error('bindAll must be passed function names'); + for (i = 1; i < length; i++) { + key = arguments[i]; + obj[key] = _.bind(obj[key], obj); + } + return obj; + }; + + // Memoize an expensive function by storing its results. + _.memoize = function(func, hasher) { + var memoize = function(key) { + var cache = memoize.cache; + var address = '' + (hasher ? hasher.apply(this, arguments) : key); + if (!_.has(cache, address)) cache[address] = func.apply(this, arguments); + return cache[address]; + }; + memoize.cache = {}; + return memoize; + }; + + // Delays a function for the given number of milliseconds, and then calls + // it with the arguments supplied. + _.delay = function(func, wait) { + var args = slice.call(arguments, 2); + return setTimeout(function(){ + return func.apply(null, args); + }, wait); + }; + + // Defers a function, scheduling it to run after the current call stack has + // cleared. + _.defer = _.partial(_.delay, _, 1); + + // Returns a function, that, when invoked, will only be triggered at most once + // during a given window of time. Normally, the throttled function will run + // as much as it can, without ever going more than once per `wait` duration; + // but if you'd like to disable the execution on the leading edge, pass + // `{leading: false}`. To disable execution on the trailing edge, ditto. + _.throttle = function(func, wait, options) { + var context, args, result; + var timeout = null; + var previous = 0; + if (!options) options = {}; + var later = function() { + previous = options.leading === false ? 0 : _.now(); + timeout = null; + result = func.apply(context, args); + if (!timeout) context = args = null; + }; + return function() { + var now = _.now(); + if (!previous && options.leading === false) previous = now; + var remaining = wait - (now - previous); + context = this; + args = arguments; + if (remaining <= 0 || remaining > wait) { + if (timeout) { + clearTimeout(timeout); + timeout = null; + } + previous = now; + result = func.apply(context, args); + if (!timeout) context = args = null; + } else if (!timeout && options.trailing !== false) { + timeout = setTimeout(later, remaining); + } + return result; + }; + }; + + // Returns a function, that, as long as it continues to be invoked, will not + // be triggered. The function will be called after it stops being called for + // N milliseconds. If `immediate` is passed, trigger the function on the + // leading edge, instead of the trailing. + _.debounce = function(func, wait, immediate) { + var timeout, args, context, timestamp, result; + + var later = function() { + var last = _.now() - timestamp; + + if (last < wait && last >= 0) { + timeout = setTimeout(later, wait - last); + } else { + timeout = null; + if (!immediate) { + result = func.apply(context, args); + if (!timeout) context = args = null; + } + } + }; + + return function() { + context = this; + args = arguments; + timestamp = _.now(); + var callNow = immediate && !timeout; + if (!timeout) timeout = setTimeout(later, wait); + if (callNow) { + result = func.apply(context, args); + context = args = null; + } + + return result; + }; + }; + + // Returns the first function passed as an argument to the second, + // allowing you to adjust arguments, run code before and after, and + // conditionally execute the original function. + _.wrap = function(func, wrapper) { + return _.partial(wrapper, func); + }; + + // Returns a negated version of the passed-in predicate. + _.negate = function(predicate) { + return function() { + return !predicate.apply(this, arguments); + }; + }; + + // Returns a function that is the composition of a list of functions, each + // consuming the return value of the function that follows. + _.compose = function() { + var args = arguments; + var start = args.length - 1; + return function() { + var i = start; + var result = args[start].apply(this, arguments); + while (i--) result = args[i].call(this, result); + return result; + }; + }; + + // Returns a function that will only be executed on and after the Nth call. + _.after = function(times, func) { + return function() { + if (--times < 1) { + return func.apply(this, arguments); + } + }; + }; + + // Returns a function that will only be executed up to (but not including) the Nth call. + _.before = function(times, func) { + var memo; + return function() { + if (--times > 0) { + memo = func.apply(this, arguments); + } + if (times <= 1) func = null; + return memo; + }; + }; + + // Returns a function that will be executed at most one time, no matter how + // often you call it. Useful for lazy initialization. + _.once = _.partial(_.before, 2); + + // Object Functions + // ---------------- + + // Keys in IE < 9 that won't be iterated by `for key in ...` and thus missed. + var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString'); + var nonEnumerableProps = ['valueOf', 'isPrototypeOf', 'toString', + 'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString']; + + function collectNonEnumProps(obj, keys) { + var nonEnumIdx = nonEnumerableProps.length; + var constructor = obj.constructor; + var proto = (_.isFunction(constructor) && constructor.prototype) || ObjProto; + + // Constructor is a special case. + var prop = 'constructor'; + if (_.has(obj, prop) && !_.contains(keys, prop)) keys.push(prop); + + while (nonEnumIdx--) { + prop = nonEnumerableProps[nonEnumIdx]; + if (prop in obj && obj[prop] !== proto[prop] && !_.contains(keys, prop)) { + keys.push(prop); + } + } + } + + // Retrieve the names of an object's own properties. + // Delegates to **ECMAScript 5**'s native `Object.keys` + _.keys = function(obj) { + if (!_.isObject(obj)) return []; + if (nativeKeys) return nativeKeys(obj); + var keys = []; + for (var key in obj) if (_.has(obj, key)) keys.push(key); + // Ahem, IE < 9. + if (hasEnumBug) collectNonEnumProps(obj, keys); + return keys; + }; + + // Retrieve all the property names of an object. + _.allKeys = function(obj) { + if (!_.isObject(obj)) return []; + var keys = []; + for (var key in obj) keys.push(key); + // Ahem, IE < 9. + if (hasEnumBug) collectNonEnumProps(obj, keys); + return keys; + }; + + // Retrieve the values of an object's properties. + _.values = function(obj) { + var keys = _.keys(obj); + var length = keys.length; + var values = Array(length); + for (var i = 0; i < length; i++) { + values[i] = obj[keys[i]]; + } + return values; + }; + + // Returns the results of applying the iteratee to each element of the object + // In contrast to _.map it returns an object + _.mapObject = function(obj, iteratee, context) { + iteratee = cb(iteratee, context); + var keys = _.keys(obj), + length = keys.length, + results = {}, + currentKey; + for (var index = 0; index < length; index++) { + currentKey = keys[index]; + results[currentKey] = iteratee(obj[currentKey], currentKey, obj); + } + return results; + }; + + // Convert an object into a list of `[key, value]` pairs. + _.pairs = function(obj) { + var keys = _.keys(obj); + var length = keys.length; + var pairs = Array(length); + for (var i = 0; i < length; i++) { + pairs[i] = [keys[i], obj[keys[i]]]; + } + return pairs; + }; + + // Invert the keys and values of an object. The values must be serializable. + _.invert = function(obj) { + var result = {}; + var keys = _.keys(obj); + for (var i = 0, length = keys.length; i < length; i++) { + result[obj[keys[i]]] = keys[i]; + } + return result; + }; + + // Return a sorted list of the function names available on the object. + // Aliased as `methods` + _.functions = _.methods = function(obj) { + var names = []; + for (var key in obj) { + if (_.isFunction(obj[key])) names.push(key); + } + return names.sort(); + }; + + // Extend a given object with all the properties in passed-in object(s). + _.extend = createAssigner(_.allKeys); + + // Assigns a given object with all the own properties in the passed-in object(s) + // (https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign) + _.extendOwn = _.assign = createAssigner(_.keys); + + // Returns the first key on an object that passes a predicate test + _.findKey = function(obj, predicate, context) { + predicate = cb(predicate, context); + var keys = _.keys(obj), key; + for (var i = 0, length = keys.length; i < length; i++) { + key = keys[i]; + if (predicate(obj[key], key, obj)) return key; + } + }; + + // Return a copy of the object only containing the whitelisted properties. + _.pick = function(object, oiteratee, context) { + var result = {}, obj = object, iteratee, keys; + if (obj == null) return result; + if (_.isFunction(oiteratee)) { + keys = _.allKeys(obj); + iteratee = optimizeCb(oiteratee, context); + } else { + keys = flatten(arguments, false, false, 1); + iteratee = function(value, key, obj) { return key in obj; }; + obj = Object(obj); + } + for (var i = 0, length = keys.length; i < length; i++) { + var key = keys[i]; + var value = obj[key]; + if (iteratee(value, key, obj)) result[key] = value; + } + return result; + }; + + // Return a copy of the object without the blacklisted properties. + _.omit = function(obj, iteratee, context) { + if (_.isFunction(iteratee)) { + iteratee = _.negate(iteratee); + } else { + var keys = _.map(flatten(arguments, false, false, 1), String); + iteratee = function(value, key) { + return !_.contains(keys, key); + }; + } + return _.pick(obj, iteratee, context); + }; + + // Fill in a given object with default properties. + _.defaults = createAssigner(_.allKeys, true); + + // Creates an object that inherits from the given prototype object. + // If additional properties are provided then they will be added to the + // created object. + _.create = function(prototype, props) { + var result = baseCreate(prototype); + if (props) _.extendOwn(result, props); + return result; + }; + + // Create a (shallow-cloned) duplicate of an object. + _.clone = function(obj) { + if (!_.isObject(obj)) return obj; + return _.isArray(obj) ? obj.slice() : _.extend({}, obj); + }; + + // Invokes interceptor with the obj, and then returns obj. + // The primary purpose of this method is to "tap into" a method chain, in + // order to perform operations on intermediate results within the chain. + _.tap = function(obj, interceptor) { + interceptor(obj); + return obj; + }; + + // Returns whether an object has a given set of `key:value` pairs. + _.isMatch = function(object, attrs) { + var keys = _.keys(attrs), length = keys.length; + if (object == null) return !length; + var obj = Object(object); + for (var i = 0; i < length; i++) { + var key = keys[i]; + if (attrs[key] !== obj[key] || !(key in obj)) return false; + } + return true; + }; + + + // Internal recursive comparison function for `isEqual`. + var eq = function(a, b, aStack, bStack) { + // Identical objects are equal. `0 === -0`, but they aren't identical. + // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal). + if (a === b) return a !== 0 || 1 / a === 1 / b; + // A strict comparison is necessary because `null == undefined`. + if (a == null || b == null) return a === b; + // Unwrap any wrapped objects. + if (a instanceof _) a = a._wrapped; + if (b instanceof _) b = b._wrapped; + // Compare `[[Class]]` names. + var className = toString.call(a); + if (className !== toString.call(b)) return false; + switch (className) { + // Strings, numbers, regular expressions, dates, and booleans are compared by value. + case '[object RegExp]': + // RegExps are coerced to strings for comparison (Note: '' + /a/i === '/a/i') + case '[object String]': + // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is + // equivalent to `new String("5")`. + return '' + a === '' + b; + case '[object Number]': + // `NaN`s are equivalent, but non-reflexive. + // Object(NaN) is equivalent to NaN + if (+a !== +a) return +b !== +b; + // An `egal` comparison is performed for other numeric values. + return +a === 0 ? 1 / +a === 1 / b : +a === +b; + case '[object Date]': + case '[object Boolean]': + // Coerce dates and booleans to numeric primitive values. Dates are compared by their + // millisecond representations. Note that invalid dates with millisecond representations + // of `NaN` are not equivalent. + return +a === +b; + } + + var areArrays = className === '[object Array]'; + if (!areArrays) { + if (typeof a != 'object' || typeof b != 'object') return false; + + // Objects with different constructors are not equivalent, but `Object`s or `Array`s + // from different frames are. + var aCtor = a.constructor, bCtor = b.constructor; + if (aCtor !== bCtor && !(_.isFunction(aCtor) && aCtor instanceof aCtor && + _.isFunction(bCtor) && bCtor instanceof bCtor) + && ('constructor' in a && 'constructor' in b)) { + return false; + } + } + // Assume equality for cyclic structures. The algorithm for detecting cyclic + // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`. + + // Initializing stack of traversed objects. + // It's done here since we only need them for objects and arrays comparison. + aStack = aStack || []; + bStack = bStack || []; + var length = aStack.length; + while (length--) { + // Linear search. Performance is inversely proportional to the number of + // unique nested structures. + if (aStack[length] === a) return bStack[length] === b; + } + + // Add the first object to the stack of traversed objects. + aStack.push(a); + bStack.push(b); + + // Recursively compare objects and arrays. + if (areArrays) { + // Compare array lengths to determine if a deep comparison is necessary. + length = a.length; + if (length !== b.length) return false; + // Deep compare the contents, ignoring non-numeric properties. + while (length--) { + if (!eq(a[length], b[length], aStack, bStack)) return false; + } + } else { + // Deep compare objects. + var keys = _.keys(a), key; + length = keys.length; + // Ensure that both objects contain the same number of properties before comparing deep equality. + if (_.keys(b).length !== length) return false; + while (length--) { + // Deep compare each member + key = keys[length]; + if (!(_.has(b, key) && eq(a[key], b[key], aStack, bStack))) return false; + } + } + // Remove the first object from the stack of traversed objects. + aStack.pop(); + bStack.pop(); + return true; + }; + + // Perform a deep comparison to check if two objects are equal. + _.isEqual = function(a, b) { + return eq(a, b); + }; + + // Is a given array, string, or object empty? + // An "empty" object has no enumerable own-properties. + _.isEmpty = function(obj) { + if (obj == null) return true; + if (isArrayLike(obj) && (_.isArray(obj) || _.isString(obj) || _.isArguments(obj))) return obj.length === 0; + return _.keys(obj).length === 0; + }; + + // Is a given value a DOM element? + _.isElement = function(obj) { + return !!(obj && obj.nodeType === 1); + }; + + // Is a given value an array? + // Delegates to ECMA5's native Array.isArray + _.isArray = nativeIsArray || function(obj) { + return toString.call(obj) === '[object Array]'; + }; + + // Is a given variable an object? + _.isObject = function(obj) { + var type = typeof obj; + return type === 'function' || type === 'object' && !!obj; + }; + + // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp, isError. + _.each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp', 'Error'], function(name) { + _['is' + name] = function(obj) { + return toString.call(obj) === '[object ' + name + ']'; + }; + }); + + // Define a fallback version of the method in browsers (ahem, IE < 9), where + // there isn't any inspectable "Arguments" type. + if (!_.isArguments(arguments)) { + _.isArguments = function(obj) { + return _.has(obj, 'callee'); + }; + } + + // Optimize `isFunction` if appropriate. Work around some typeof bugs in old v8, + // IE 11 (#1621), and in Safari 8 (#1929). + if (typeof /./ != 'function' && typeof Int8Array != 'object') { + _.isFunction = function(obj) { + return typeof obj == 'function' || false; + }; + } + + // Is a given object a finite number? + _.isFinite = function(obj) { + return isFinite(obj) && !isNaN(parseFloat(obj)); + }; + + // Is the given value `NaN`? (NaN is the only number which does not equal itself). + _.isNaN = function(obj) { + return _.isNumber(obj) && obj !== +obj; + }; + + // Is a given value a boolean? + _.isBoolean = function(obj) { + return obj === true || obj === false || toString.call(obj) === '[object Boolean]'; + }; + + // Is a given value equal to null? + _.isNull = function(obj) { + return obj === null; + }; + + // Is a given variable undefined? + _.isUndefined = function(obj) { + return obj === void 0; + }; + + // Shortcut function for checking if an object has a given property directly + // on itself (in other words, not on a prototype). + _.has = function(obj, key) { + return obj != null && hasOwnProperty.call(obj, key); + }; + + // Utility Functions + // ----------------- + + // Run Underscore.js in *noConflict* mode, returning the `_` variable to its + // previous owner. Returns a reference to the Underscore object. + _.noConflict = function() { + root._ = previousUnderscore; + return this; + }; + + // Keep the identity function around for default iteratees. + _.identity = function(value) { + return value; + }; + + // Predicate-generating functions. Often useful outside of Underscore. + _.constant = function(value) { + return function() { + return value; + }; + }; + + _.noop = function(){}; + + _.property = property; + + // Generates a function for a given object that returns a given property. + _.propertyOf = function(obj) { + return obj == null ? function(){} : function(key) { + return obj[key]; + }; + }; + + // Returns a predicate for checking whether an object has a given set of + // `key:value` pairs. + _.matcher = _.matches = function(attrs) { + attrs = _.extendOwn({}, attrs); + return function(obj) { + return _.isMatch(obj, attrs); + }; + }; + + // Run a function **n** times. + _.times = function(n, iteratee, context) { + var accum = Array(Math.max(0, n)); + iteratee = optimizeCb(iteratee, context, 1); + for (var i = 0; i < n; i++) accum[i] = iteratee(i); + return accum; + }; + + // Return a random integer between min and max (inclusive). + _.random = function(min, max) { + if (max == null) { + max = min; + min = 0; + } + return min + Math.floor(Math.random() * (max - min + 1)); + }; + + // A (possibly faster) way to get the current timestamp as an integer. + _.now = Date.now || function() { + return new Date().getTime(); + }; + + // List of HTML entities for escaping. + var escapeMap = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''', + '`': '`' + }; + var unescapeMap = _.invert(escapeMap); + + // Functions for escaping and unescaping strings to/from HTML interpolation. + var createEscaper = function(map) { + var escaper = function(match) { + return map[match]; + }; + // Regexes for identifying a key that needs to be escaped + var source = '(?:' + _.keys(map).join('|') + ')'; + var testRegexp = RegExp(source); + var replaceRegexp = RegExp(source, 'g'); + return function(string) { + string = string == null ? '' : '' + string; + return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string; + }; + }; + _.escape = createEscaper(escapeMap); + _.unescape = createEscaper(unescapeMap); + + // If the value of the named `property` is a function then invoke it with the + // `object` as context; otherwise, return it. + _.result = function(object, property, fallback) { + var value = object == null ? void 0 : object[property]; + if (value === void 0) { + value = fallback; + } + return _.isFunction(value) ? value.call(object) : value; + }; + + // Generate a unique integer id (unique within the entire client session). + // Useful for temporary DOM ids. + var idCounter = 0; + _.uniqueId = function(prefix) { + var id = ++idCounter + ''; + return prefix ? prefix + id : id; + }; + + // By default, Underscore uses ERB-style template delimiters, change the + // following template settings to use alternative delimiters. + _.templateSettings = { + evaluate : /<%([\s\S]+?)%>/g, + interpolate : /<%=([\s\S]+?)%>/g, + escape : /<%-([\s\S]+?)%>/g + }; + + // When customizing `templateSettings`, if you don't want to define an + // interpolation, evaluation or escaping regex, we need one that is + // guaranteed not to match. + var noMatch = /(.)^/; + + // Certain characters need to be escaped so that they can be put into a + // string literal. + var escapes = { + "'": "'", + '\\': '\\', + '\r': 'r', + '\n': 'n', + '\u2028': 'u2028', + '\u2029': 'u2029' + }; + + var escaper = /\\|'|\r|\n|\u2028|\u2029/g; + + var escapeChar = function(match) { + return '\\' + escapes[match]; + }; + + // JavaScript micro-templating, similar to John Resig's implementation. + // Underscore templating handles arbitrary delimiters, preserves whitespace, + // and correctly escapes quotes within interpolated code. + // NB: `oldSettings` only exists for backwards compatibility. + _.template = function(text, settings, oldSettings) { + if (!settings && oldSettings) settings = oldSettings; + settings = _.defaults({}, settings, _.templateSettings); + + // Combine delimiters into one regular expression via alternation. + var matcher = RegExp([ + (settings.escape || noMatch).source, + (settings.interpolate || noMatch).source, + (settings.evaluate || noMatch).source + ].join('|') + '|$', 'g'); + + // Compile the template source, escaping string literals appropriately. + var index = 0; + var source = "__p+='"; + text.replace(matcher, function(match, escape, interpolate, evaluate, offset) { + source += text.slice(index, offset).replace(escaper, escapeChar); + index = offset + match.length; + + if (escape) { + source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'"; + } else if (interpolate) { + source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'"; + } else if (evaluate) { + source += "';\n" + evaluate + "\n__p+='"; + } + + // Adobe VMs need the match returned to produce the correct offest. + return match; + }); + source += "';\n"; + + // If a variable is not specified, place data values in local scope. + if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n'; + + source = "var __t,__p='',__j=Array.prototype.join," + + "print=function(){__p+=__j.call(arguments,'');};\n" + + source + 'return __p;\n'; + + try { + var render = new Function(settings.variable || 'obj', '_', source); + } catch (e) { + e.source = source; + throw e; + } + + var template = function(data) { + return render.call(this, data, _); + }; + + // Provide the compiled source as a convenience for precompilation. + var argument = settings.variable || 'obj'; + template.source = 'function(' + argument + '){\n' + source + '}'; + + return template; + }; + + // Add a "chain" function. Start chaining a wrapped Underscore object. + _.chain = function(obj) { + var instance = _(obj); + instance._chain = true; + return instance; + }; + + // OOP + // --------------- + // If Underscore is called as a function, it returns a wrapped object that + // can be used OO-style. This wrapper holds altered versions of all the + // underscore functions. Wrapped objects may be chained. + + // Helper function to continue chaining intermediate results. + var result = function(instance, obj) { + return instance._chain ? _(obj).chain() : obj; + }; + + // Add your own custom functions to the Underscore object. + _.mixin = function(obj) { + _.each(_.functions(obj), function(name) { + var func = _[name] = obj[name]; + _.prototype[name] = function() { + var args = [this._wrapped]; + push.apply(args, arguments); + return result(this, func.apply(_, args)); + }; + }); + }; + + // Add all of the Underscore functions to the wrapper object. + _.mixin(_); + + // Add all mutator Array functions to the wrapper. + _.each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) { + var method = ArrayProto[name]; + _.prototype[name] = function() { + var obj = this._wrapped; + method.apply(obj, arguments); + if ((name === 'shift' || name === 'splice') && obj.length === 0) delete obj[0]; + return result(this, obj); + }; + }); + + // Add all accessor Array functions to the wrapper. + _.each(['concat', 'join', 'slice'], function(name) { + var method = ArrayProto[name]; + _.prototype[name] = function() { + return result(this, method.apply(this._wrapped, arguments)); + }; + }); + + // Extracts the result from a wrapped and chained object. + _.prototype.value = function() { + return this._wrapped; + }; + + // Provide unwrapping proxy for some methods used in engine operations + // such as arithmetic and JSON stringification. + _.prototype.valueOf = _.prototype.toJSON = _.prototype.value; + + _.prototype.toString = function() { + return '' + this._wrapped; + }; + + // AMD registration happens at the end for compatibility with AMD loaders + // that may not enforce next-turn semantics on modules. Even though general + // practice for AMD registration is to be anonymous, underscore registers + // as a named module because, like jQuery, it is a base library that is + // popular enough to be bundled in a third party lib, but not be part of + // an AMD load request. Those cases could generate an error when an + // anonymous define() is called outside of a loader request. + if (typeof define === 'function' && define.amd) { + define('underscore', [], function() { + return _; + }); + } +}.call(this)); + +},{}],26:[function(require,module,exports){ +arguments[4][19][0].apply(exports,arguments) +},{"dup":19}],27:[function(require,module,exports){ +module.exports = function isBuffer(arg) { + return arg && typeof arg === 'object' + && typeof arg.copy === 'function' + && typeof arg.fill === 'function' + && typeof arg.readUInt8 === 'function'; +} +},{}],28:[function(require,module,exports){ +(function (process,global){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var formatRegExp = /%[sdj%]/g; +exports.format = function(f) { + if (!isString(f)) { + var objects = []; + for (var i = 0; i < arguments.length; i++) { + objects.push(inspect(arguments[i])); + } + return objects.join(' '); + } + + var i = 1; + var args = arguments; + var len = args.length; + var str = String(f).replace(formatRegExp, function(x) { + if (x === '%%') return '%'; + if (i >= len) return x; + switch (x) { + case '%s': return String(args[i++]); + case '%d': return Number(args[i++]); + case '%j': + try { + return JSON.stringify(args[i++]); + } catch (_) { + return '[Circular]'; + } + default: + return x; + } + }); + for (var x = args[i]; i < len; x = args[++i]) { + if (isNull(x) || !isObject(x)) { + str += ' ' + x; + } else { + str += ' ' + inspect(x); + } + } + return str; +}; + + +// Mark that a method should not be used. +// Returns a modified function which warns once by default. +// If --no-deprecation is set, then it is a no-op. +exports.deprecate = function(fn, msg) { + // Allow for deprecating things in the process of starting up. + if (isUndefined(global.process)) { + return function() { + return exports.deprecate(fn, msg).apply(this, arguments); + }; + } + + if (process.noDeprecation === true) { + return fn; + } + + var warned = false; + function deprecated() { + if (!warned) { + if (process.throwDeprecation) { + throw new Error(msg); + } else if (process.traceDeprecation) { + console.trace(msg); + } else { + console.error(msg); + } + warned = true; + } + return fn.apply(this, arguments); + } + + return deprecated; +}; + + +var debugs = {}; +var debugEnviron; +exports.debuglog = function(set) { + if (isUndefined(debugEnviron)) + debugEnviron = process.env.NODE_DEBUG || ''; + set = set.toUpperCase(); + if (!debugs[set]) { + if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) { + var pid = process.pid; + debugs[set] = function() { + var msg = exports.format.apply(exports, arguments); + console.error('%s %d: %s', set, pid, msg); + }; + } else { + debugs[set] = function() {}; + } + } + return debugs[set]; +}; + + +/** + * Echos the value of a value. Trys to print the value out + * in the best way possible given the different types. + * + * @param {Object} obj The object to print out. + * @param {Object} opts Optional options object that alters the output. + */ +/* legacy: obj, showHidden, depth, colors*/ +function inspect(obj, opts) { + // default options + var ctx = { + seen: [], + stylize: stylizeNoColor + }; + // legacy... + if (arguments.length >= 3) ctx.depth = arguments[2]; + if (arguments.length >= 4) ctx.colors = arguments[3]; + if (isBoolean(opts)) { + // legacy... + ctx.showHidden = opts; + } else if (opts) { + // got an "options" object + exports._extend(ctx, opts); + } + // set default options + if (isUndefined(ctx.showHidden)) ctx.showHidden = false; + if (isUndefined(ctx.depth)) ctx.depth = 2; + if (isUndefined(ctx.colors)) ctx.colors = false; + if (isUndefined(ctx.customInspect)) ctx.customInspect = true; + if (ctx.colors) ctx.stylize = stylizeWithColor; + return formatValue(ctx, obj, ctx.depth); +} +exports.inspect = inspect; + + +// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics +inspect.colors = { + 'bold' : [1, 22], + 'italic' : [3, 23], + 'underline' : [4, 24], + 'inverse' : [7, 27], + 'white' : [37, 39], + 'grey' : [90, 39], + 'black' : [30, 39], + 'blue' : [34, 39], + 'cyan' : [36, 39], + 'green' : [32, 39], + 'magenta' : [35, 39], + 'red' : [31, 39], + 'yellow' : [33, 39] +}; + +// Don't use 'blue' not visible on cmd.exe +inspect.styles = { + 'special': 'cyan', + 'number': 'yellow', + 'boolean': 'yellow', + 'undefined': 'grey', + 'null': 'bold', + 'string': 'green', + 'date': 'magenta', + // "name": intentionally not styling + 'regexp': 'red' +}; + + +function stylizeWithColor(str, styleType) { + var style = inspect.styles[styleType]; + + if (style) { + return '\u001b[' + inspect.colors[style][0] + 'm' + str + + '\u001b[' + inspect.colors[style][1] + 'm'; + } else { + return str; + } +} + + +function stylizeNoColor(str, styleType) { + return str; +} + + +function arrayToHash(array) { + var hash = {}; + + array.forEach(function(val, idx) { + hash[val] = true; + }); + + return hash; +} + + +function formatValue(ctx, value, recurseTimes) { + // Provide a hook for user-specified inspect functions. + // Check that value is an object with an inspect function on it + if (ctx.customInspect && + value && + isFunction(value.inspect) && + // Filter out the util module, it's inspect function is special + value.inspect !== exports.inspect && + // Also filter out any prototype objects using the circular check. + !(value.constructor && value.constructor.prototype === value)) { + var ret = value.inspect(recurseTimes, ctx); + if (!isString(ret)) { + ret = formatValue(ctx, ret, recurseTimes); + } + return ret; + } + + // Primitive types cannot have properties + var primitive = formatPrimitive(ctx, value); + if (primitive) { + return primitive; + } + + // Look up the keys of the object. + var keys = Object.keys(value); + var visibleKeys = arrayToHash(keys); + + if (ctx.showHidden) { + keys = Object.getOwnPropertyNames(value); + } + + // IE doesn't make error fields non-enumerable + // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx + if (isError(value) + && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) { + return formatError(value); + } + + // Some type of object without properties can be shortcutted. + if (keys.length === 0) { + if (isFunction(value)) { + var name = value.name ? ': ' + value.name : ''; + return ctx.stylize('[Function' + name + ']', 'special'); + } + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } + if (isDate(value)) { + return ctx.stylize(Date.prototype.toString.call(value), 'date'); + } + if (isError(value)) { + return formatError(value); + } + } + + var base = '', array = false, braces = ['{', '}']; + + // Make Array say that they are Array + if (isArray(value)) { + array = true; + braces = ['[', ']']; + } + + // Make functions say that they are functions + if (isFunction(value)) { + var n = value.name ? ': ' + value.name : ''; + base = ' [Function' + n + ']'; + } + + // Make RegExps say that they are RegExps + if (isRegExp(value)) { + base = ' ' + RegExp.prototype.toString.call(value); + } + + // Make dates with properties first say the date + if (isDate(value)) { + base = ' ' + Date.prototype.toUTCString.call(value); + } + + // Make error with message first say the error + if (isError(value)) { + base = ' ' + formatError(value); + } + + if (keys.length === 0 && (!array || value.length == 0)) { + return braces[0] + base + braces[1]; + } + + if (recurseTimes < 0) { + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } else { + return ctx.stylize('[Object]', 'special'); + } + } + + ctx.seen.push(value); + + var output; + if (array) { + output = formatArray(ctx, value, recurseTimes, visibleKeys, keys); + } else { + output = keys.map(function(key) { + return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array); + }); + } + + ctx.seen.pop(); + + return reduceToSingleString(output, base, braces); +} + + +function formatPrimitive(ctx, value) { + if (isUndefined(value)) + return ctx.stylize('undefined', 'undefined'); + if (isString(value)) { + var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '') + .replace(/'/g, "\\'") + .replace(/\\"/g, '"') + '\''; + return ctx.stylize(simple, 'string'); + } + if (isNumber(value)) + return ctx.stylize('' + value, 'number'); + if (isBoolean(value)) + return ctx.stylize('' + value, 'boolean'); + // For some reason typeof null is "object", so special case here. + if (isNull(value)) + return ctx.stylize('null', 'null'); +} + + +function formatError(value) { + return '[' + Error.prototype.toString.call(value) + ']'; +} + + +function formatArray(ctx, value, recurseTimes, visibleKeys, keys) { + var output = []; + for (var i = 0, l = value.length; i < l; ++i) { + if (hasOwnProperty(value, String(i))) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + String(i), true)); + } else { + output.push(''); + } + } + keys.forEach(function(key) { + if (!key.match(/^\d+$/)) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + key, true)); + } + }); + return output; +} + + +function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) { + var name, str, desc; + desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] }; + if (desc.get) { + if (desc.set) { + str = ctx.stylize('[Getter/Setter]', 'special'); + } else { + str = ctx.stylize('[Getter]', 'special'); + } + } else { + if (desc.set) { + str = ctx.stylize('[Setter]', 'special'); + } + } + if (!hasOwnProperty(visibleKeys, key)) { + name = '[' + key + ']'; + } + if (!str) { + if (ctx.seen.indexOf(desc.value) < 0) { + if (isNull(recurseTimes)) { + str = formatValue(ctx, desc.value, null); + } else { + str = formatValue(ctx, desc.value, recurseTimes - 1); + } + if (str.indexOf('\n') > -1) { + if (array) { + str = str.split('\n').map(function(line) { + return ' ' + line; + }).join('\n').substr(2); + } else { + str = '\n' + str.split('\n').map(function(line) { + return ' ' + line; + }).join('\n'); + } + } + } else { + str = ctx.stylize('[Circular]', 'special'); + } + } + if (isUndefined(name)) { + if (array && key.match(/^\d+$/)) { + return str; + } + name = JSON.stringify('' + key); + if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) { + name = name.substr(1, name.length - 2); + name = ctx.stylize(name, 'name'); + } else { + name = name.replace(/'/g, "\\'") + .replace(/\\"/g, '"') + .replace(/(^"|"$)/g, "'"); + name = ctx.stylize(name, 'string'); + } + } + + return name + ': ' + str; +} + + +function reduceToSingleString(output, base, braces) { + var numLinesEst = 0; + var length = output.reduce(function(prev, cur) { + numLinesEst++; + if (cur.indexOf('\n') >= 0) numLinesEst++; + return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1; + }, 0); + + if (length > 60) { + return braces[0] + + (base === '' ? '' : base + '\n ') + + ' ' + + output.join(',\n ') + + ' ' + + braces[1]; + } + + return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1]; +} + + +// NOTE: These type checking functions intentionally don't use `instanceof` +// because it is fragile and can be easily faked with `Object.create()`. +function isArray(ar) { + return Array.isArray(ar); +} +exports.isArray = isArray; + +function isBoolean(arg) { + return typeof arg === 'boolean'; +} +exports.isBoolean = isBoolean; + +function isNull(arg) { + return arg === null; +} +exports.isNull = isNull; + +function isNullOrUndefined(arg) { + return arg == null; +} +exports.isNullOrUndefined = isNullOrUndefined; + +function isNumber(arg) { + return typeof arg === 'number'; +} +exports.isNumber = isNumber; + +function isString(arg) { + return typeof arg === 'string'; +} +exports.isString = isString; + +function isSymbol(arg) { + return typeof arg === 'symbol'; +} +exports.isSymbol = isSymbol; + +function isUndefined(arg) { + return arg === void 0; +} +exports.isUndefined = isUndefined; + +function isRegExp(re) { + return isObject(re) && objectToString(re) === '[object RegExp]'; +} +exports.isRegExp = isRegExp; + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} +exports.isObject = isObject; + +function isDate(d) { + return isObject(d) && objectToString(d) === '[object Date]'; +} +exports.isDate = isDate; + +function isError(e) { + return isObject(e) && + (objectToString(e) === '[object Error]' || e instanceof Error); +} +exports.isError = isError; + +function isFunction(arg) { + return typeof arg === 'function'; +} +exports.isFunction = isFunction; + +function isPrimitive(arg) { + return arg === null || + typeof arg === 'boolean' || + typeof arg === 'number' || + typeof arg === 'string' || + typeof arg === 'symbol' || // ES6 symbol + typeof arg === 'undefined'; +} +exports.isPrimitive = isPrimitive; + +exports.isBuffer = require('./support/isBuffer'); + +function objectToString(o) { + return Object.prototype.toString.call(o); +} + + +function pad(n) { + return n < 10 ? '0' + n.toString(10) : n.toString(10); +} + + +var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', + 'Oct', 'Nov', 'Dec']; + +// 26 Feb 16:19:34 +function timestamp() { + var d = new Date(); + var time = [pad(d.getHours()), + pad(d.getMinutes()), + pad(d.getSeconds())].join(':'); + return [d.getDate(), months[d.getMonth()], time].join(' '); +} + + +// log is just a thin wrapper to console.log that prepends a timestamp +exports.log = function() { + console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments)); +}; + + +/** + * Inherit the prototype methods from one constructor into another. + * + * The Function.prototype.inherits from lang.js rewritten as a standalone + * function (not on Function.prototype). NOTE: If this file is to be loaded + * during bootstrapping this function needs to be rewritten using some native + * functions as prototype setup using normal JavaScript does not work as + * expected during bootstrapping (see mirror.js in r114903). + * + * @param {function} ctor Constructor function which needs to inherit the + * prototype. + * @param {function} superCtor Constructor function to inherit prototype from. + */ +exports.inherits = require('inherits'); + +exports._extend = function(origin, add) { + // Don't do anything if add isn't an object + if (!add || !isObject(add)) return origin; + + var keys = Object.keys(add); + var i = keys.length; + while (i--) { + origin[keys[i]] = add[keys[i]]; + } + return origin; +}; + +function hasOwnProperty(obj, prop) { + return Object.prototype.hasOwnProperty.call(obj, prop); +} + +}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./support/isBuffer":27,"_process":24,"inherits":26}],29:[function(require,module,exports){ +// Returns a wrapper function that returns a wrapped callback +// The wrapper function should do some stuff, and return a +// presumably different callback function. +// This makes sure that own properties are retained, so that +// decorations and such are not lost along the way. +module.exports = wrappy +function wrappy (fn, cb) { + if (fn && cb) return wrappy(fn)(cb) + + if (typeof fn !== 'function') + throw new TypeError('need wrapper function') + + Object.keys(fn).forEach(function (k) { + wrapper[k] = fn[k] + }) + + return wrapper + + function wrapper() { + var args = new Array(arguments.length) + for (var i = 0; i < args.length; i++) { + args[i] = arguments[i] + } + var ret = fn.apply(this, args) + var cb = args[args.length-1] + if (typeof ret === 'function' && ret !== cb) { + Object.keys(cb).forEach(function (k) { + ret[k] = cb[k] + }) + } + return ret + } +} + +},{}]},{},[7])(7) +}); \ No newline at end of file diff --git a/assets/javascripts/workers/search.b97dbffb.min.js b/assets/javascripts/workers/search.b97dbffb.min.js new file mode 100644 index 00000000..8201c5e5 --- /dev/null +++ b/assets/javascripts/workers/search.b97dbffb.min.js @@ -0,0 +1,48 @@ +"use strict";(()=>{var ge=Object.create;var W=Object.defineProperty,ye=Object.defineProperties,me=Object.getOwnPropertyDescriptor,ve=Object.getOwnPropertyDescriptors,xe=Object.getOwnPropertyNames,G=Object.getOwnPropertySymbols,Se=Object.getPrototypeOf,X=Object.prototype.hasOwnProperty,Qe=Object.prototype.propertyIsEnumerable;var J=(t,e,r)=>e in t?W(t,e,{enumerable:!0,configurable:!0,writable:!0,value:r}):t[e]=r,M=(t,e)=>{for(var r in e||(e={}))X.call(e,r)&&J(t,r,e[r]);if(G)for(var r of G(e))Qe.call(e,r)&&J(t,r,e[r]);return t},Z=(t,e)=>ye(t,ve(e));var K=(t,e)=>()=>(e||t((e={exports:{}}).exports,e),e.exports);var be=(t,e,r,n)=>{if(e&&typeof e=="object"||typeof e=="function")for(let i of xe(e))!X.call(t,i)&&i!==r&&W(t,i,{get:()=>e[i],enumerable:!(n=me(e,i))||n.enumerable});return t};var H=(t,e,r)=>(r=t!=null?ge(Se(t)):{},be(e||!t||!t.__esModule?W(r,"default",{value:t,enumerable:!0}):r,t));var z=(t,e,r)=>new Promise((n,i)=>{var s=u=>{try{a(r.next(u))}catch(c){i(c)}},o=u=>{try{a(r.throw(u))}catch(c){i(c)}},a=u=>u.done?n(u.value):Promise.resolve(u.value).then(s,o);a((r=r.apply(t,e)).next())});var re=K((ee,te)=>{/** + * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9 + * Copyright (C) 2020 Oliver Nightingale + * @license MIT + */(function(){var t=function(e){var r=new t.Builder;return r.pipeline.add(t.trimmer,t.stopWordFilter,t.stemmer),r.searchPipeline.add(t.stemmer),e.call(r,r),r.build()};t.version="2.3.9";/*! + * lunr.utils + * Copyright (C) 2020 Oliver Nightingale + */t.utils={},t.utils.warn=function(e){return function(r){e.console&&console.warn&&console.warn(r)}}(this),t.utils.asString=function(e){return e==null?"":e.toString()},t.utils.clone=function(e){if(e==null)return e;for(var r=Object.create(null),n=Object.keys(e),i=0;i0){var h=t.utils.clone(r)||{};h.position=[a,c],h.index=s.length,s.push(new t.Token(n.slice(a,o),h))}a=o+1}}return s},t.tokenizer.separator=/[\s\-]+/;/*! + * lunr.Pipeline + * Copyright (C) 2020 Oliver Nightingale + */t.Pipeline=function(){this._stack=[]},t.Pipeline.registeredFunctions=Object.create(null),t.Pipeline.registerFunction=function(e,r){r in this.registeredFunctions&&t.utils.warn("Overwriting existing registered function: "+r),e.label=r,t.Pipeline.registeredFunctions[e.label]=e},t.Pipeline.warnIfFunctionNotRegistered=function(e){var r=e.label&&e.label in this.registeredFunctions;r||t.utils.warn(`Function is not registered with pipeline. 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this.pos1&&(e.backup(),e.emit(t.QueryLexer.TERM)),e.ignore(),e.more())return t.QueryLexer.lexText},t.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.EDIT_DISTANCE),t.QueryLexer.lexText},t.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.BOOST),t.QueryLexer.lexText},t.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(t.QueryLexer.TERM)},t.QueryLexer.termSeparator=t.tokenizer.separator,t.QueryLexer.lexText=function(e){for(;;){var r=e.next();if(r==t.QueryLexer.EOS)return t.QueryLexer.lexEOS;if(r.charCodeAt(0)==92){e.escapeCharacter();continue}if(r==":")return t.QueryLexer.lexField;if(r=="~")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexEditDistance;if(r=="^")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexBoost;if(r=="+"&&e.width()===1||r=="-"&&e.width()===1)return e.emit(t.QueryLexer.PRESENCE),t.QueryLexer.lexText;if(r.match(t.QueryLexer.termSeparator))return t.QueryLexer.lexTerm}},t.QueryParser=function(e,r){this.lexer=new t.QueryLexer(e),this.query=r,this.currentClause={},this.lexemeIdx=0},t.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=t.QueryParser.parseClause;e;)e=e(this);return this.query},t.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},t.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},t.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},t.QueryParser.parseClause=function(e){var r=e.peekLexeme();if(r!=null)switch(r.type){case t.QueryLexer.PRESENCE:return t.QueryParser.parsePresence;case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var n="expected either a field or a term, found "+r.type;throw r.str.length>=1&&(n+=" with value '"+r.str+"'"),new t.QueryParseError(n,r.start,r.end)}},t.QueryParser.parsePresence=function(e){var r=e.consumeLexeme();if(r!=null){switch(r.str){case"-":e.currentClause.presence=t.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=t.Query.presence.REQUIRED;break;default:var n="unrecognised presence operator'"+r.str+"'";throw new t.QueryParseError(n,r.start,r.end)}var i=e.peekLexeme();if(i==null){var n="expecting term or field, found nothing";throw new t.QueryParseError(n,r.start,r.end)}switch(i.type){case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var n="expecting term or field, found '"+i.type+"'";throw new t.QueryParseError(n,i.start,i.end)}}},t.QueryParser.parseField=function(e){var r=e.consumeLexeme();if(r!=null){if(e.query.allFields.indexOf(r.str)==-1){var n=e.query.allFields.map(function(o){return"'"+o+"'"}).join(", "),i="unrecognised field '"+r.str+"', possible fields: "+n;throw new t.QueryParseError(i,r.start,r.end)}e.currentClause.fields=[r.str];var s=e.peekLexeme();if(s==null){var i="expecting term, found nothing";throw new t.QueryParseError(i,r.start,r.end)}switch(s.type){case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var i="expecting term, found '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},t.QueryParser.parseTerm=function(e){var r=e.consumeLexeme();if(r!=null){e.currentClause.term=r.str.toLowerCase(),r.str.indexOf("*")!=-1&&(e.currentClause.usePipeline=!1);var n=e.peekLexeme();if(n==null){e.nextClause();return}switch(n.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+n.type+"'";throw new t.QueryParseError(i,n.start,n.end)}}},t.QueryParser.parseEditDistance=function(e){var r=e.consumeLexeme();if(r!=null){var n=parseInt(r.str,10);if(isNaN(n)){var i="edit distance must be numeric";throw new t.QueryParseError(i,r.start,r.end)}e.currentClause.editDistance=n;var s=e.peekLexeme();if(s==null){e.nextClause();return}switch(s.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},t.QueryParser.parseBoost=function(e){var r=e.consumeLexeme();if(r!=null){var n=parseInt(r.str,10);if(isNaN(n)){var i="boost must be numeric";throw new t.QueryParseError(i,r.start,r.end)}e.currentClause.boost=n;var s=e.peekLexeme();if(s==null){e.nextClause();return}switch(s.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},function(e,r){typeof define=="function"&&define.amd?define(r):typeof ee=="object"?te.exports=r():e.lunr=r()}(this,function(){return t})})()});var q=K((Re,ne)=>{"use strict";/*! + * escape-html + * Copyright(c) 2012-2013 TJ Holowaychuk + * Copyright(c) 2015 Andreas Lubbe + * Copyright(c) 2015 Tiancheng "Timothy" Gu + * MIT Licensed + */var Le=/["'&<>]/;ne.exports=we;function we(t){var e=""+t,r=Le.exec(e);if(!r)return e;var n,i="",s=0,o=0;for(s=r.index;s=0;r--){let n=t[r];typeof n!="object"?n=document.createTextNode(n):n.parentNode&&n.parentNode.removeChild(n),r?e.insertBefore(this.previousSibling,n):e.replaceChild(n,this)}}}));var ie=H(q());function se(t){let e=new Map,r=new Set;for(let n of t){let[i,s]=n.location.split("#"),o=n.location,a=n.title,u=n.tags,c=(0,ie.default)(n.text).replace(/\s+(?=[,.:;!?])/g,"").replace(/\s+/g," ");if(s){let h=e.get(i);r.has(h)?e.set(o,{location:o,title:a,text:c,parent:h}):(h.title=n.title,h.text=c,r.add(h))}else e.set(o,M({location:o,title:a,text:c},u&&{tags:u}))}return e}var oe=H(q());function ae(t,e){let r=new RegExp(t.separator,"img"),n=(i,s,o)=>`${s}${o}`;return i=>{i=i.replace(/[\s*+\-:~^]+/g," ").trim();let s=new RegExp(`(^|${t.separator})(${i.replace(/[|\\{}()[\]^$+*?.-]/g,"\\$&").replace(r,"|")})`,"img");return o=>(e?(0,oe.default)(o):o).replace(s,n).replace(/<\/mark>(\s+)]*>/img,"$1")}}function ue(t){let e=new lunr.Query(["title","text"]);return new lunr.QueryParser(t,e).parse(),e.clauses}function ce(t,e){var i;let r=new Set(t),n={};for(let s=0;s!n.has(i)))]}var U=class{constructor({config:e,docs:r,options:n}){this.options=n,this.documents=se(r),this.highlight=ae(e,!1),lunr.tokenizer.separator=new RegExp(e.separator),this.index=lunr(function(){e.lang.length===1&&e.lang[0]!=="en"?this.use(lunr[e.lang[0]]):e.lang.length>1&&this.use(lunr.multiLanguage(...e.lang));let i=Ee(["trimmer","stopWordFilter","stemmer"],n.pipeline);for(let s of e.lang.map(o=>o==="en"?lunr:lunr[o]))for(let o of i)this.pipeline.remove(s[o]),this.searchPipeline.remove(s[o]);this.ref("location"),this.field("title",{boost:1e3}),this.field("text"),this.field("tags",{boost:1e6,extractor:s=>{let{tags:o=[]}=s;return o.reduce((a,u)=>[...a,...lunr.tokenizer(u)],[])}});for(let s of r)this.add(s,{boost:s.boost})})}search(e){if(e)try{let r=this.highlight(e),n=ue(e).filter(o=>o.presence!==lunr.Query.presence.PROHIBITED),i=this.index.search(`${e}*`).reduce((o,{ref:a,score:u,matchData:c})=>{let h=this.documents.get(a);if(typeof h!="undefined"){let{location:y,title:g,text:b,tags:m,parent:Q}=h,p=ce(n,Object.keys(c.metadata)),d=+!Q+ +Object.values(p).every(w=>w);o.push(Z(M({location:y,title:r(g),text:r(b)},m&&{tags:m.map(r)}),{score:u*(1+d),terms:p}))}return o},[]).sort((o,a)=>a.score-o.score).reduce((o,a)=>{let u=this.documents.get(a.location);if(typeof u!="undefined"){let c="parent"in u?u.parent.location:u.location;o.set(c,[...o.get(c)||[],a])}return o},new Map),s;if(this.options.suggestions){let o=this.index.query(a=>{for(let u of n)a.term(u.term,{fields:["title"],presence:lunr.Query.presence.REQUIRED,wildcard:lunr.Query.wildcard.TRAILING})});s=o.length?Object.keys(o[0].matchData.metadata):[]}return M({items:[...i.values()]},typeof s!="undefined"&&{suggestions:s})}catch(r){console.warn(`Invalid query: ${e} \u2013 see https://bit.ly/2s3ChXG`)}return{items:[]}}};var Y;function ke(t){return z(this,null,function*(){let e="../lunr";if(typeof parent!="undefined"&&"IFrameWorker"in parent){let n=document.querySelector("script[src]"),[i]=n.src.split("/worker");e=e.replace("..",i)}let r=[];for(let n of t.lang){switch(n){case"ja":r.push(`${e}/tinyseg.js`);break;case"hi":case"th":r.push(`${e}/wordcut.js`);break}n!=="en"&&r.push(`${e}/min/lunr.${n}.min.js`)}t.lang.length>1&&r.push(`${e}/min/lunr.multi.min.js`),r.length&&(yield importScripts(`${e}/min/lunr.stemmer.support.min.js`,...r))})}function Te(t){return z(this,null,function*(){switch(t.type){case 0:return yield ke(t.data.config),Y=new U(t.data),{type:1};case 2:return{type:3,data:Y?Y.search(t.data):{items:[]}};default:throw new TypeError("Invalid message type")}})}self.lunr=le.default;addEventListener("message",t=>z(void 0,null,function*(){postMessage(yield Te(t.data))}));})(); +//# sourceMappingURL=search.b97dbffb.min.js.map + diff --git a/assets/javascripts/workers/search.b97dbffb.min.js.map b/assets/javascripts/workers/search.b97dbffb.min.js.map new file mode 100644 index 00000000..5764b1b3 --- /dev/null +++ b/assets/javascripts/workers/search.b97dbffb.min.js.map @@ -0,0 +1,8 @@ +{ + "version": 3, + "sources": ["node_modules/lunr/lunr.js", "node_modules/escape-html/index.js", "src/assets/javascripts/integrations/search/worker/main/index.ts", "src/assets/javascripts/polyfills/index.ts", "src/assets/javascripts/integrations/search/document/index.ts", "src/assets/javascripts/integrations/search/highlighter/index.ts", "src/assets/javascripts/integrations/search/query/_/index.ts", "src/assets/javascripts/integrations/search/_/index.ts"], + "sourceRoot": "../../../..", + "sourcesContent": ["/**\n * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9\n * Copyright (C) 2020 Oliver Nightingale\n * @license MIT\n */\n\n;(function(){\n\n/**\n * A convenience function for configuring and constructing\n * a new lunr Index.\n *\n * A lunr.Builder instance is created and the pipeline setup\n * with a trimmer, stop word filter and stemmer.\n *\n * This builder object is yielded to the configuration function\n * that is passed as a parameter, allowing the list of fields\n * and other builder parameters to be customised.\n *\n * All documents _must_ be added within the passed config function.\n *\n * @example\n * var idx = lunr(function () {\n * this.field('title')\n * this.field('body')\n * this.ref('id')\n *\n * documents.forEach(function (doc) {\n * this.add(doc)\n * }, this)\n * })\n *\n * @see {@link lunr.Builder}\n * @see {@link lunr.Pipeline}\n * @see {@link lunr.trimmer}\n * @see {@link lunr.stopWordFilter}\n * @see {@link lunr.stemmer}\n * @namespace {function} lunr\n */\nvar lunr = function (config) {\n var builder = new lunr.Builder\n\n builder.pipeline.add(\n lunr.trimmer,\n lunr.stopWordFilter,\n lunr.stemmer\n )\n\n builder.searchPipeline.add(\n lunr.stemmer\n )\n\n config.call(builder, builder)\n return builder.build()\n}\n\nlunr.version = \"2.3.9\"\n/*!\n * lunr.utils\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A namespace containing utils for the rest of the lunr library\n * @namespace lunr.utils\n */\nlunr.utils = {}\n\n/**\n * Print a warning message to the console.\n *\n * @param {String} message The message to be printed.\n * @memberOf lunr.utils\n * @function\n */\nlunr.utils.warn = (function (global) {\n /* eslint-disable no-console */\n return function (message) {\n if (global.console && console.warn) {\n console.warn(message)\n }\n }\n /* eslint-enable no-console */\n})(this)\n\n/**\n * Convert an object to a string.\n *\n * In the case of `null` and `undefined` the function returns\n * the empty string, in all other cases the result of calling\n * `toString` on the passed object is returned.\n *\n * @param {Any} obj The object to convert to a string.\n * @return {String} string representation of the passed object.\n * @memberOf lunr.utils\n */\nlunr.utils.asString = function (obj) {\n if (obj === void 0 || obj === null) {\n return \"\"\n } else {\n return obj.toString()\n }\n}\n\n/**\n * Clones an object.\n *\n * Will create a copy of an existing object such that any mutations\n * on the copy cannot affect the original.\n *\n * Only shallow objects are supported, passing a nested object to this\n * function will cause a TypeError.\n *\n * Objects with primitives, and arrays of primitives are supported.\n *\n * @param {Object} obj The object to clone.\n * @return {Object} a clone of the passed object.\n * @throws {TypeError} when a nested object is passed.\n * @memberOf Utils\n */\nlunr.utils.clone = function (obj) {\n if (obj === null || obj === undefined) {\n return obj\n }\n\n var clone = Object.create(null),\n keys = Object.keys(obj)\n\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i],\n val = obj[key]\n\n if (Array.isArray(val)) {\n clone[key] = val.slice()\n continue\n }\n\n if (typeof val === 'string' ||\n typeof val === 'number' ||\n typeof val === 'boolean') {\n clone[key] = val\n continue\n }\n\n throw new TypeError(\"clone is not deep and does not support nested objects\")\n }\n\n return clone\n}\nlunr.FieldRef = function (docRef, fieldName, stringValue) {\n this.docRef = docRef\n this.fieldName = fieldName\n this._stringValue = stringValue\n}\n\nlunr.FieldRef.joiner = \"/\"\n\nlunr.FieldRef.fromString = function (s) {\n var n = s.indexOf(lunr.FieldRef.joiner)\n\n if (n === -1) {\n throw \"malformed field ref string\"\n }\n\n var fieldRef = s.slice(0, n),\n docRef = s.slice(n + 1)\n\n return new lunr.FieldRef (docRef, fieldRef, s)\n}\n\nlunr.FieldRef.prototype.toString = function () {\n if (this._stringValue == undefined) {\n this._stringValue = this.fieldName + lunr.FieldRef.joiner + this.docRef\n }\n\n return this._stringValue\n}\n/*!\n * lunr.Set\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A lunr set.\n *\n * @constructor\n */\nlunr.Set = function (elements) {\n this.elements = Object.create(null)\n\n if (elements) {\n this.length = elements.length\n\n for (var i = 0; i < this.length; i++) {\n this.elements[elements[i]] = true\n }\n } else {\n this.length = 0\n }\n}\n\n/**\n * A complete set that contains all elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.complete = {\n intersect: function (other) {\n return other\n },\n\n union: function () {\n return this\n },\n\n contains: function () {\n return true\n }\n}\n\n/**\n * An empty set that contains no elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.empty = {\n intersect: function () {\n return this\n },\n\n union: function (other) {\n return other\n },\n\n contains: function () {\n return false\n }\n}\n\n/**\n * Returns true if this set contains the specified object.\n *\n * @param {object} object - Object whose presence in this set is to be tested.\n * @returns {boolean} - True if this set contains the specified object.\n */\nlunr.Set.prototype.contains = function (object) {\n return !!this.elements[object]\n}\n\n/**\n * Returns a new set containing only the elements that are present in both\n * this set and the specified set.\n *\n * @param {lunr.Set} other - set to intersect with this set.\n * @returns {lunr.Set} a new set that is the intersection of this and the specified set.\n */\n\nlunr.Set.prototype.intersect = function (other) {\n var a, b, elements, intersection = []\n\n if (other === lunr.Set.complete) {\n return this\n }\n\n if (other === lunr.Set.empty) {\n return other\n }\n\n if (this.length < other.length) {\n a = this\n b = other\n } else {\n a = other\n b = this\n }\n\n elements = Object.keys(a.elements)\n\n for (var i = 0; i < elements.length; i++) {\n var element = elements[i]\n if (element in b.elements) {\n intersection.push(element)\n }\n }\n\n return new lunr.Set (intersection)\n}\n\n/**\n * Returns a new set combining the elements of this and the specified set.\n *\n * @param {lunr.Set} other - set to union with this set.\n * @return {lunr.Set} a new set that is the union of this and the specified set.\n */\n\nlunr.Set.prototype.union = function (other) {\n if (other === lunr.Set.complete) {\n return lunr.Set.complete\n }\n\n if (other === lunr.Set.empty) {\n return this\n }\n\n return new lunr.Set(Object.keys(this.elements).concat(Object.keys(other.elements)))\n}\n/**\n * A function to calculate the inverse document frequency for\n * a posting. This is shared between the builder and the index\n *\n * @private\n * @param {object} posting - The posting for a given term\n * @param {number} documentCount - The total number of documents.\n */\nlunr.idf = function (posting, documentCount) {\n var documentsWithTerm = 0\n\n for (var fieldName in posting) {\n if (fieldName == '_index') continue // Ignore the term index, its not a field\n documentsWithTerm += Object.keys(posting[fieldName]).length\n }\n\n var x = (documentCount - documentsWithTerm + 0.5) / (documentsWithTerm + 0.5)\n\n return Math.log(1 + Math.abs(x))\n}\n\n/**\n * A token wraps a string representation of a token\n * as it is passed through the text processing pipeline.\n *\n * @constructor\n * @param {string} [str=''] - The string token being wrapped.\n * @param {object} [metadata={}] - Metadata associated with this token.\n */\nlunr.Token = function (str, metadata) {\n this.str = str || \"\"\n this.metadata = metadata || {}\n}\n\n/**\n * Returns the token string that is being wrapped by this object.\n *\n * @returns {string}\n */\nlunr.Token.prototype.toString = function () {\n return this.str\n}\n\n/**\n * A token update function is used when updating or optionally\n * when cloning a token.\n *\n * @callback lunr.Token~updateFunction\n * @param {string} str - The string representation of the token.\n * @param {Object} metadata - All metadata associated with this token.\n */\n\n/**\n * Applies the given function to the wrapped string token.\n *\n * @example\n * token.update(function (str, metadata) {\n * return str.toUpperCase()\n * })\n *\n * @param {lunr.Token~updateFunction} fn - A function to apply to the token string.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.update = function (fn) {\n this.str = fn(this.str, this.metadata)\n return this\n}\n\n/**\n * Creates a clone of this token. Optionally a function can be\n * applied to the cloned token.\n *\n * @param {lunr.Token~updateFunction} [fn] - An optional function to apply to the cloned token.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.clone = function (fn) {\n fn = fn || function (s) { return s }\n return new lunr.Token (fn(this.str, this.metadata), this.metadata)\n}\n/*!\n * lunr.tokenizer\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A function for splitting a string into tokens ready to be inserted into\n * the search index. Uses `lunr.tokenizer.separator` to split strings, change\n * the value of this property to change how strings are split into tokens.\n *\n * This tokenizer will convert its parameter to a string by calling `toString` and\n * then will split this string on the character in `lunr.tokenizer.separator`.\n * Arrays will have their elements converted to strings and wrapped in a lunr.Token.\n *\n * Optional metadata can be passed to the tokenizer, this metadata will be cloned and\n * added as metadata to every token that is created from the object to be tokenized.\n *\n * @static\n * @param {?(string|object|object[])} obj - The object to convert into tokens\n * @param {?object} metadata - Optional metadata to associate with every token\n * @returns {lunr.Token[]}\n * @see {@link lunr.Pipeline}\n */\nlunr.tokenizer = function (obj, metadata) {\n if (obj == null || obj == undefined) {\n return []\n }\n\n if (Array.isArray(obj)) {\n return obj.map(function (t) {\n return new lunr.Token(\n lunr.utils.asString(t).toLowerCase(),\n lunr.utils.clone(metadata)\n )\n })\n }\n\n var str = obj.toString().toLowerCase(),\n len = str.length,\n tokens = []\n\n for (var sliceEnd = 0, sliceStart = 0; sliceEnd <= len; sliceEnd++) {\n var char = str.charAt(sliceEnd),\n sliceLength = sliceEnd - sliceStart\n\n if ((char.match(lunr.tokenizer.separator) || sliceEnd == len)) {\n\n if (sliceLength > 0) {\n var tokenMetadata = lunr.utils.clone(metadata) || {}\n tokenMetadata[\"position\"] = [sliceStart, sliceLength]\n tokenMetadata[\"index\"] = tokens.length\n\n tokens.push(\n new lunr.Token (\n str.slice(sliceStart, sliceEnd),\n tokenMetadata\n )\n )\n }\n\n sliceStart = sliceEnd + 1\n }\n\n }\n\n return tokens\n}\n\n/**\n * The separator used to split a string into tokens. Override this property to change the behaviour of\n * `lunr.tokenizer` behaviour when tokenizing strings. By default this splits on whitespace and hyphens.\n *\n * @static\n * @see lunr.tokenizer\n */\nlunr.tokenizer.separator = /[\\s\\-]+/\n/*!\n * lunr.Pipeline\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.Pipelines maintain an ordered list of functions to be applied to all\n * tokens in documents entering the search index and queries being ran against\n * the index.\n *\n * An instance of lunr.Index created with the lunr shortcut will contain a\n * pipeline with a stop word filter and an English language stemmer. Extra\n * functions can be added before or after either of these functions or these\n * default functions can be removed.\n *\n * When run the pipeline will call each function in turn, passing a token, the\n * index of that token in the original list of all tokens and finally a list of\n * all the original tokens.\n *\n * The output of functions in the pipeline will be passed to the next function\n * in the pipeline. To exclude a token from entering the index the function\n * should return undefined, the rest of the pipeline will not be called with\n * this token.\n *\n * For serialisation of pipelines to work, all functions used in an instance of\n * a pipeline should be registered with lunr.Pipeline. Registered functions can\n * then be loaded. If trying to load a serialised pipeline that uses functions\n * that are not registered an error will be thrown.\n *\n * If not planning on serialising the pipeline then registering pipeline functions\n * is not necessary.\n *\n * @constructor\n */\nlunr.Pipeline = function () {\n this._stack = []\n}\n\nlunr.Pipeline.registeredFunctions = Object.create(null)\n\n/**\n * A pipeline function maps lunr.Token to lunr.Token. A lunr.Token contains the token\n * string as well as all known metadata. A pipeline function can mutate the token string\n * or mutate (or add) metadata for a given token.\n *\n * A pipeline function can indicate that the passed token should be discarded by returning\n * null, undefined or an empty string. This token will not be passed to any downstream pipeline\n * functions and will not be added to the index.\n *\n * Multiple tokens can be returned by returning an array of tokens. Each token will be passed\n * to any downstream pipeline functions and all will returned tokens will be added to the index.\n *\n * Any number of pipeline functions may be chained together using a lunr.Pipeline.\n *\n * @interface lunr.PipelineFunction\n * @param {lunr.Token} token - A token from the document being processed.\n * @param {number} i - The index of this token in the complete list of tokens for this document/field.\n * @param {lunr.Token[]} tokens - All tokens for this document/field.\n * @returns {(?lunr.Token|lunr.Token[])}\n */\n\n/**\n * Register a function with the pipeline.\n *\n * Functions that are used in the pipeline should be registered if the pipeline\n * needs to be serialised, or a serialised pipeline needs to be loaded.\n *\n * Registering a function does not add it to a pipeline, functions must still be\n * added to instances of the pipeline for them to be used when running a pipeline.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @param {String} label - The label to register this function with\n */\nlunr.Pipeline.registerFunction = function (fn, label) {\n if (label in this.registeredFunctions) {\n lunr.utils.warn('Overwriting existing registered function: ' + label)\n }\n\n fn.label = label\n lunr.Pipeline.registeredFunctions[fn.label] = fn\n}\n\n/**\n * Warns if the function is not registered as a Pipeline function.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @private\n */\nlunr.Pipeline.warnIfFunctionNotRegistered = function (fn) {\n var isRegistered = fn.label && (fn.label in this.registeredFunctions)\n\n if (!isRegistered) {\n lunr.utils.warn('Function is not registered with pipeline. This may cause problems when serialising the index.\\n', fn)\n }\n}\n\n/**\n * Loads a previously serialised pipeline.\n *\n * All functions to be loaded must already be registered with lunr.Pipeline.\n * If any function from the serialised data has not been registered then an\n * error will be thrown.\n *\n * @param {Object} serialised - The serialised pipeline to load.\n * @returns {lunr.Pipeline}\n */\nlunr.Pipeline.load = function (serialised) {\n var pipeline = new lunr.Pipeline\n\n serialised.forEach(function (fnName) {\n var fn = lunr.Pipeline.registeredFunctions[fnName]\n\n if (fn) {\n pipeline.add(fn)\n } else {\n throw new Error('Cannot load unregistered function: ' + fnName)\n }\n })\n\n return pipeline\n}\n\n/**\n * Adds new functions to the end of the pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction[]} functions - Any number of functions to add to the pipeline.\n */\nlunr.Pipeline.prototype.add = function () {\n var fns = Array.prototype.slice.call(arguments)\n\n fns.forEach(function (fn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n this._stack.push(fn)\n }, this)\n}\n\n/**\n * Adds a single function after a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.after = function (existingFn, newFn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n var pos = this._stack.indexOf(existingFn)\n if (pos == -1) {\n throw new Error('Cannot find existingFn')\n }\n\n pos = pos + 1\n this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Adds a single function before a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.before = function (existingFn, newFn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n var pos = this._stack.indexOf(existingFn)\n if (pos == -1) {\n throw new Error('Cannot find existingFn')\n }\n\n this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Removes a function from the pipeline.\n *\n * @param {lunr.PipelineFunction} fn The function to remove from the pipeline.\n */\nlunr.Pipeline.prototype.remove = function (fn) {\n var pos = this._stack.indexOf(fn)\n if (pos == -1) {\n return\n }\n\n this._stack.splice(pos, 1)\n}\n\n/**\n * Runs the current list of functions that make up the pipeline against the\n * passed tokens.\n *\n * @param {Array} tokens The tokens to run through the pipeline.\n * @returns {Array}\n */\nlunr.Pipeline.prototype.run = function (tokens) {\n var stackLength = this._stack.length\n\n for (var i = 0; i < stackLength; i++) {\n var fn = this._stack[i]\n var memo = []\n\n for (var j = 0; j < tokens.length; j++) {\n var result = fn(tokens[j], j, tokens)\n\n if (result === null || result === void 0 || result === '') continue\n\n if (Array.isArray(result)) {\n for (var k = 0; k < result.length; k++) {\n memo.push(result[k])\n }\n } else {\n memo.push(result)\n }\n }\n\n tokens = memo\n }\n\n return tokens\n}\n\n/**\n * Convenience method for passing a string through a pipeline and getting\n * strings out. This method takes care of wrapping the passed string in a\n * token and mapping the resulting tokens back to strings.\n *\n * @param {string} str - The string to pass through the pipeline.\n * @param {?object} metadata - Optional metadata to associate with the token\n * passed to the pipeline.\n * @returns {string[]}\n */\nlunr.Pipeline.prototype.runString = function (str, metadata) {\n var token = new lunr.Token (str, metadata)\n\n return this.run([token]).map(function (t) {\n return t.toString()\n })\n}\n\n/**\n * Resets the pipeline by removing any existing processors.\n *\n */\nlunr.Pipeline.prototype.reset = function () {\n this._stack = []\n}\n\n/**\n * Returns a representation of the pipeline ready for serialisation.\n *\n * Logs a warning if the function has not been registered.\n *\n * @returns {Array}\n */\nlunr.Pipeline.prototype.toJSON = function () {\n return this._stack.map(function (fn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n\n return fn.label\n })\n}\n/*!\n * lunr.Vector\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A vector is used to construct the vector space of documents and queries. These\n * vectors support operations to determine the similarity between two documents or\n * a document and a query.\n *\n * Normally no parameters are required for initializing a vector, but in the case of\n * loading a previously dumped vector the raw elements can be provided to the constructor.\n *\n * For performance reasons vectors are implemented with a flat array, where an elements\n * index is immediately followed by its value. E.g. [index, value, index, value]. This\n * allows the underlying array to be as sparse as possible and still offer decent\n * performance when being used for vector calculations.\n *\n * @constructor\n * @param {Number[]} [elements] - The flat list of element index and element value pairs.\n */\nlunr.Vector = function (elements) {\n this._magnitude = 0\n this.elements = elements || []\n}\n\n\n/**\n * Calculates the position within the vector to insert a given index.\n *\n * This is used internally by insert and upsert. If there are duplicate indexes then\n * the position is returned as if the value for that index were to be updated, but it\n * is the callers responsibility to check whether there is a duplicate at that index\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @returns {Number}\n */\nlunr.Vector.prototype.positionForIndex = function (index) {\n // For an empty vector the tuple can be inserted at the beginning\n if (this.elements.length == 0) {\n return 0\n }\n\n var start = 0,\n end = this.elements.length / 2,\n sliceLength = end - start,\n pivotPoint = Math.floor(sliceLength / 2),\n pivotIndex = this.elements[pivotPoint * 2]\n\n while (sliceLength > 1) {\n if (pivotIndex < index) {\n start = pivotPoint\n }\n\n if (pivotIndex > index) {\n end = pivotPoint\n }\n\n if (pivotIndex == index) {\n break\n }\n\n sliceLength = end - start\n pivotPoint = start + Math.floor(sliceLength / 2)\n pivotIndex = this.elements[pivotPoint * 2]\n }\n\n if (pivotIndex == index) {\n return pivotPoint * 2\n }\n\n if (pivotIndex > index) {\n return pivotPoint * 2\n }\n\n if (pivotIndex < index) {\n return (pivotPoint + 1) * 2\n }\n}\n\n/**\n * Inserts an element at an index within the vector.\n *\n * Does not allow duplicates, will throw an error if there is already an entry\n * for this index.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n */\nlunr.Vector.prototype.insert = function (insertIdx, val) {\n this.upsert(insertIdx, val, function () {\n throw \"duplicate index\"\n })\n}\n\n/**\n * Inserts or updates an existing index within the vector.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n * @param {function} fn - A function that is called for updates, the existing value and the\n * requested value are passed as arguments\n */\nlunr.Vector.prototype.upsert = function (insertIdx, val, fn) {\n this._magnitude = 0\n var position = this.positionForIndex(insertIdx)\n\n if (this.elements[position] == insertIdx) {\n this.elements[position + 1] = fn(this.elements[position + 1], val)\n } else {\n this.elements.splice(position, 0, insertIdx, val)\n }\n}\n\n/**\n * Calculates the magnitude of this vector.\n *\n * @returns {Number}\n */\nlunr.Vector.prototype.magnitude = function () {\n if (this._magnitude) return this._magnitude\n\n var sumOfSquares = 0,\n elementsLength = this.elements.length\n\n for (var i = 1; i < elementsLength; i += 2) {\n var val = this.elements[i]\n sumOfSquares += val * val\n }\n\n return this._magnitude = Math.sqrt(sumOfSquares)\n}\n\n/**\n * Calculates the dot product of this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The vector to compute the dot product with.\n * @returns {Number}\n */\nlunr.Vector.prototype.dot = function (otherVector) {\n var dotProduct = 0,\n a = this.elements, b = otherVector.elements,\n aLen = a.length, bLen = b.length,\n aVal = 0, bVal = 0,\n i = 0, j = 0\n\n while (i < aLen && j < bLen) {\n aVal = a[i], bVal = b[j]\n if (aVal < bVal) {\n i += 2\n } else if (aVal > bVal) {\n j += 2\n } else if (aVal == bVal) {\n dotProduct += a[i + 1] * b[j + 1]\n i += 2\n j += 2\n }\n }\n\n return dotProduct\n}\n\n/**\n * Calculates the similarity between this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The other vector to calculate the\n * similarity with.\n * @returns {Number}\n */\nlunr.Vector.prototype.similarity = function (otherVector) {\n return this.dot(otherVector) / this.magnitude() || 0\n}\n\n/**\n * Converts the vector to an array of the elements within the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toArray = function () {\n var output = new Array (this.elements.length / 2)\n\n for (var i = 1, j = 0; i < this.elements.length; i += 2, j++) {\n output[j] = this.elements[i]\n }\n\n return output\n}\n\n/**\n * A JSON serializable representation of the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toJSON = function () {\n return this.elements\n}\n/* eslint-disable */\n/*!\n * lunr.stemmer\n * Copyright (C) 2020 Oliver Nightingale\n * Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt\n */\n\n/**\n * lunr.stemmer is an english language stemmer, this is a JavaScript\n * implementation of the PorterStemmer taken from http://tartarus.org/~martin\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token - The string to stem\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n * @function\n */\nlunr.stemmer = (function(){\n var step2list = {\n \"ational\" : \"ate\",\n \"tional\" : \"tion\",\n \"enci\" : \"ence\",\n \"anci\" : \"ance\",\n \"izer\" : \"ize\",\n \"bli\" : \"ble\",\n \"alli\" : \"al\",\n \"entli\" : \"ent\",\n \"eli\" : \"e\",\n \"ousli\" : \"ous\",\n \"ization\" : \"ize\",\n \"ation\" : \"ate\",\n \"ator\" : \"ate\",\n \"alism\" : \"al\",\n \"iveness\" : \"ive\",\n \"fulness\" : \"ful\",\n \"ousness\" : \"ous\",\n \"aliti\" : \"al\",\n \"iviti\" : \"ive\",\n \"biliti\" : \"ble\",\n \"logi\" : \"log\"\n },\n\n step3list = {\n \"icate\" : \"ic\",\n \"ative\" : \"\",\n \"alize\" : \"al\",\n \"iciti\" : \"ic\",\n \"ical\" : \"ic\",\n \"ful\" : \"\",\n \"ness\" : \"\"\n },\n\n c = \"[^aeiou]\", // consonant\n v = \"[aeiouy]\", // vowel\n C = c + \"[^aeiouy]*\", // consonant sequence\n V = v + \"[aeiou]*\", // vowel sequence\n\n mgr0 = \"^(\" + C + \")?\" + V + C, // [C]VC... is m>0\n meq1 = \"^(\" + C + \")?\" + V + C + \"(\" + V + \")?$\", // [C]VC[V] is m=1\n mgr1 = \"^(\" + C + \")?\" + V + C + V + C, // [C]VCVC... is m>1\n s_v = \"^(\" + C + \")?\" + v; // vowel in stem\n\n var re_mgr0 = new RegExp(mgr0);\n var re_mgr1 = new RegExp(mgr1);\n var re_meq1 = new RegExp(meq1);\n var re_s_v = new RegExp(s_v);\n\n var re_1a = /^(.+?)(ss|i)es$/;\n var re2_1a = /^(.+?)([^s])s$/;\n var re_1b = /^(.+?)eed$/;\n var re2_1b = /^(.+?)(ed|ing)$/;\n var re_1b_2 = /.$/;\n var re2_1b_2 = /(at|bl|iz)$/;\n var re3_1b_2 = new RegExp(\"([^aeiouylsz])\\\\1$\");\n var re4_1b_2 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n var re_1c = /^(.+?[^aeiou])y$/;\n var re_2 = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;\n\n var re_3 = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;\n\n var re_4 = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;\n var re2_4 = /^(.+?)(s|t)(ion)$/;\n\n var re_5 = /^(.+?)e$/;\n var re_5_1 = /ll$/;\n var re3_5 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n var porterStemmer = function porterStemmer(w) {\n var stem,\n suffix,\n firstch,\n re,\n re2,\n re3,\n re4;\n\n if (w.length < 3) { return w; }\n\n firstch = w.substr(0,1);\n if (firstch == \"y\") {\n w = firstch.toUpperCase() + w.substr(1);\n }\n\n // Step 1a\n re = re_1a\n re2 = re2_1a;\n\n if (re.test(w)) { w = w.replace(re,\"$1$2\"); }\n else if (re2.test(w)) { w = w.replace(re2,\"$1$2\"); }\n\n // Step 1b\n re = re_1b;\n re2 = re2_1b;\n if (re.test(w)) {\n var fp = re.exec(w);\n re = re_mgr0;\n if (re.test(fp[1])) {\n re = re_1b_2;\n w = w.replace(re,\"\");\n }\n } else if (re2.test(w)) {\n var fp = re2.exec(w);\n stem = fp[1];\n re2 = re_s_v;\n if (re2.test(stem)) {\n w = stem;\n re2 = re2_1b_2;\n re3 = re3_1b_2;\n re4 = re4_1b_2;\n if (re2.test(w)) { w = w + \"e\"; }\n else if (re3.test(w)) { re = re_1b_2; w = w.replace(re,\"\"); }\n else if (re4.test(w)) { w = w + \"e\"; }\n }\n }\n\n // Step 1c - replace suffix y or Y by i if preceded by a non-vowel which is not the first letter of the word (so cry -> cri, by -> by, say -> say)\n re = re_1c;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n w = stem + \"i\";\n }\n\n // Step 2\n re = re_2;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n suffix = fp[2];\n re = re_mgr0;\n if (re.test(stem)) {\n w = stem + step2list[suffix];\n }\n }\n\n // Step 3\n re = re_3;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n suffix = fp[2];\n re = re_mgr0;\n if (re.test(stem)) {\n w = stem + step3list[suffix];\n }\n }\n\n // Step 4\n re = re_4;\n re2 = re2_4;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n re = re_mgr1;\n if (re.test(stem)) {\n w = stem;\n }\n } else if (re2.test(w)) {\n var fp = re2.exec(w);\n stem = fp[1] + fp[2];\n re2 = re_mgr1;\n if (re2.test(stem)) {\n w = stem;\n }\n }\n\n // Step 5\n re = re_5;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n re = re_mgr1;\n re2 = re_meq1;\n re3 = re3_5;\n if (re.test(stem) || (re2.test(stem) && !(re3.test(stem)))) {\n w = stem;\n }\n }\n\n re = re_5_1;\n re2 = re_mgr1;\n if (re.test(w) && re2.test(w)) {\n re = re_1b_2;\n w = w.replace(re,\"\");\n }\n\n // and turn initial Y back to y\n\n if (firstch == \"y\") {\n w = firstch.toLowerCase() + w.substr(1);\n }\n\n return w;\n };\n\n return function (token) {\n return token.update(porterStemmer);\n }\n})();\n\nlunr.Pipeline.registerFunction(lunr.stemmer, 'stemmer')\n/*!\n * lunr.stopWordFilter\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.generateStopWordFilter builds a stopWordFilter function from the provided\n * list of stop words.\n *\n * The built in lunr.stopWordFilter is built using this generator and can be used\n * to generate custom stopWordFilters for applications or non English languages.\n *\n * @function\n * @param {Array} token The token to pass through the filter\n * @returns {lunr.PipelineFunction}\n * @see lunr.Pipeline\n * @see lunr.stopWordFilter\n */\nlunr.generateStopWordFilter = function (stopWords) {\n var words = stopWords.reduce(function (memo, stopWord) {\n memo[stopWord] = stopWord\n return memo\n }, {})\n\n return function (token) {\n if (token && words[token.toString()] !== token.toString()) return token\n }\n}\n\n/**\n * lunr.stopWordFilter is an English language stop word list filter, any words\n * contained in the list will not be passed through the filter.\n *\n * This is intended to be used in the Pipeline. If the token does not pass the\n * filter then undefined will be returned.\n *\n * @function\n * @implements {lunr.PipelineFunction}\n * @params {lunr.Token} token - A token to check for being a stop word.\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n */\nlunr.stopWordFilter = lunr.generateStopWordFilter([\n 'a',\n 'able',\n 'about',\n 'across',\n 'after',\n 'all',\n 'almost',\n 'also',\n 'am',\n 'among',\n 'an',\n 'and',\n 'any',\n 'are',\n 'as',\n 'at',\n 'be',\n 'because',\n 'been',\n 'but',\n 'by',\n 'can',\n 'cannot',\n 'could',\n 'dear',\n 'did',\n 'do',\n 'does',\n 'either',\n 'else',\n 'ever',\n 'every',\n 'for',\n 'from',\n 'get',\n 'got',\n 'had',\n 'has',\n 'have',\n 'he',\n 'her',\n 'hers',\n 'him',\n 'his',\n 'how',\n 'however',\n 'i',\n 'if',\n 'in',\n 'into',\n 'is',\n 'it',\n 'its',\n 'just',\n 'least',\n 'let',\n 'like',\n 'likely',\n 'may',\n 'me',\n 'might',\n 'most',\n 'must',\n 'my',\n 'neither',\n 'no',\n 'nor',\n 'not',\n 'of',\n 'off',\n 'often',\n 'on',\n 'only',\n 'or',\n 'other',\n 'our',\n 'own',\n 'rather',\n 'said',\n 'say',\n 'says',\n 'she',\n 'should',\n 'since',\n 'so',\n 'some',\n 'than',\n 'that',\n 'the',\n 'their',\n 'them',\n 'then',\n 'there',\n 'these',\n 'they',\n 'this',\n 'tis',\n 'to',\n 'too',\n 'twas',\n 'us',\n 'wants',\n 'was',\n 'we',\n 'were',\n 'what',\n 'when',\n 'where',\n 'which',\n 'while',\n 'who',\n 'whom',\n 'why',\n 'will',\n 'with',\n 'would',\n 'yet',\n 'you',\n 'your'\n])\n\nlunr.Pipeline.registerFunction(lunr.stopWordFilter, 'stopWordFilter')\n/*!\n * lunr.trimmer\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.trimmer is a pipeline function for trimming non word\n * characters from the beginning and end of tokens before they\n * enter the index.\n *\n * This implementation may not work correctly for non latin\n * characters and should either be removed or adapted for use\n * with languages with non-latin characters.\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token The token to pass through the filter\n * @returns {lunr.Token}\n * @see lunr.Pipeline\n */\nlunr.trimmer = function (token) {\n return token.update(function (s) {\n return s.replace(/^\\W+/, '').replace(/\\W+$/, '')\n })\n}\n\nlunr.Pipeline.registerFunction(lunr.trimmer, 'trimmer')\n/*!\n * lunr.TokenSet\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A token set is used to store the unique list of all tokens\n * within an index. Token sets are also used to represent an\n * incoming query to the index, this query token set and index\n * token set are then intersected to find which tokens to look\n * up in the inverted index.\n *\n * A token set can hold multiple tokens, as in the case of the\n * index token set, or it can hold a single token as in the\n * case of a simple query token set.\n *\n * Additionally token sets are used to perform wildcard matching.\n * Leading, contained and trailing wildcards are supported, and\n * from this edit distance matching can also be provided.\n *\n * Token sets are implemented as a minimal finite state automata,\n * where both common prefixes and suffixes are shared between tokens.\n * This helps to reduce the space used for storing the token set.\n *\n * @constructor\n */\nlunr.TokenSet = function () {\n this.final = false\n this.edges = {}\n this.id = lunr.TokenSet._nextId\n lunr.TokenSet._nextId += 1\n}\n\n/**\n * Keeps track of the next, auto increment, identifier to assign\n * to a new tokenSet.\n *\n * TokenSets require a unique identifier to be correctly minimised.\n *\n * @private\n */\nlunr.TokenSet._nextId = 1\n\n/**\n * Creates a TokenSet instance from the given sorted array of words.\n *\n * @param {String[]} arr - A sorted array of strings to create the set from.\n * @returns {lunr.TokenSet}\n * @throws Will throw an error if the input array is not sorted.\n */\nlunr.TokenSet.fromArray = function (arr) {\n var builder = new lunr.TokenSet.Builder\n\n for (var i = 0, len = arr.length; i < len; i++) {\n builder.insert(arr[i])\n }\n\n builder.finish()\n return builder.root\n}\n\n/**\n * Creates a token set from a query clause.\n *\n * @private\n * @param {Object} clause - A single clause from lunr.Query.\n * @param {string} clause.term - The query clause term.\n * @param {number} [clause.editDistance] - The optional edit distance for the term.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromClause = function (clause) {\n if ('editDistance' in clause) {\n return lunr.TokenSet.fromFuzzyString(clause.term, clause.editDistance)\n } else {\n return lunr.TokenSet.fromString(clause.term)\n }\n}\n\n/**\n * Creates a token set representing a single string with a specified\n * edit distance.\n *\n * Insertions, deletions, substitutions and transpositions are each\n * treated as an edit distance of 1.\n *\n * Increasing the allowed edit distance will have a dramatic impact\n * on the performance of both creating and intersecting these TokenSets.\n * It is advised to keep the edit distance less than 3.\n *\n * @param {string} str - The string to create the token set from.\n * @param {number} editDistance - The allowed edit distance to match.\n * @returns {lunr.Vector}\n */\nlunr.TokenSet.fromFuzzyString = function (str, editDistance) {\n var root = new lunr.TokenSet\n\n var stack = [{\n node: root,\n editsRemaining: editDistance,\n str: str\n }]\n\n while (stack.length) {\n var frame = stack.pop()\n\n // no edit\n if (frame.str.length > 0) {\n var char = frame.str.charAt(0),\n noEditNode\n\n if (char in frame.node.edges) {\n noEditNode = frame.node.edges[char]\n } else {\n noEditNode = new lunr.TokenSet\n frame.node.edges[char] = noEditNode\n }\n\n if (frame.str.length == 1) {\n noEditNode.final = true\n }\n\n stack.push({\n node: noEditNode,\n editsRemaining: frame.editsRemaining,\n str: frame.str.slice(1)\n })\n }\n\n if (frame.editsRemaining == 0) {\n continue\n }\n\n // insertion\n if (\"*\" in frame.node.edges) {\n var insertionNode = frame.node.edges[\"*\"]\n } else {\n var insertionNode = new lunr.TokenSet\n frame.node.edges[\"*\"] = insertionNode\n }\n\n if (frame.str.length == 0) {\n insertionNode.final = true\n }\n\n stack.push({\n node: insertionNode,\n editsRemaining: frame.editsRemaining - 1,\n str: frame.str\n })\n\n // deletion\n // can only do a deletion if we have enough edits remaining\n // and if there are characters left to delete in the string\n if (frame.str.length > 1) {\n stack.push({\n node: frame.node,\n editsRemaining: frame.editsRemaining - 1,\n str: frame.str.slice(1)\n })\n }\n\n // deletion\n // just removing the last character from the str\n if (frame.str.length == 1) {\n frame.node.final = true\n }\n\n // substitution\n // can only do a substitution if we have enough edits remaining\n // and if there are characters left to substitute\n if (frame.str.length >= 1) {\n if (\"*\" in frame.node.edges) {\n var substitutionNode = frame.node.edges[\"*\"]\n } else {\n var substitutionNode = new lunr.TokenSet\n frame.node.edges[\"*\"] = substitutionNode\n }\n\n if (frame.str.length == 1) {\n substitutionNode.final = true\n }\n\n stack.push({\n node: substitutionNode,\n editsRemaining: frame.editsRemaining - 1,\n str: frame.str.slice(1)\n })\n }\n\n // transposition\n // can only do a transposition if there are edits remaining\n // and there are enough characters to transpose\n if (frame.str.length > 1) {\n var charA = frame.str.charAt(0),\n charB = frame.str.charAt(1),\n transposeNode\n\n if (charB in frame.node.edges) {\n transposeNode = frame.node.edges[charB]\n } else {\n transposeNode = new lunr.TokenSet\n frame.node.edges[charB] = transposeNode\n }\n\n if (frame.str.length == 1) {\n transposeNode.final = true\n }\n\n stack.push({\n node: transposeNode,\n editsRemaining: frame.editsRemaining - 1,\n str: charA + frame.str.slice(2)\n })\n }\n }\n\n return root\n}\n\n/**\n * Creates a TokenSet from a string.\n *\n * The string may contain one or more wildcard characters (*)\n * that will allow wildcard matching when intersecting with\n * another TokenSet.\n *\n * @param {string} str - The string to create a TokenSet from.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromString = function (str) {\n var node = new lunr.TokenSet,\n root = node\n\n /*\n * Iterates through all characters within the passed string\n * appending a node for each character.\n *\n * When a wildcard character is found then a self\n * referencing edge is introduced to continually match\n * any number of any characters.\n */\n for (var i = 0, len = str.length; i < len; i++) {\n var char = str[i],\n final = (i == len - 1)\n\n if (char == \"*\") {\n node.edges[char] = node\n node.final = final\n\n } else {\n var next = new lunr.TokenSet\n next.final = final\n\n node.edges[char] = next\n node = next\n }\n }\n\n return root\n}\n\n/**\n * Converts this TokenSet into an array of strings\n * contained within the TokenSet.\n *\n * This is not intended to be used on a TokenSet that\n * contains wildcards, in these cases the results are\n * undefined and are likely to cause an infinite loop.\n *\n * @returns {string[]}\n */\nlunr.TokenSet.prototype.toArray = function () {\n var words = []\n\n var stack = [{\n prefix: \"\",\n node: this\n }]\n\n while (stack.length) {\n var frame = stack.pop(),\n edges = Object.keys(frame.node.edges),\n len = edges.length\n\n if (frame.node.final) {\n /* In Safari, at this point the prefix is sometimes corrupted, see:\n * https://github.com/olivernn/lunr.js/issues/279 Calling any\n * String.prototype method forces Safari to \"cast\" this string to what\n * it's supposed to be, fixing the bug. */\n frame.prefix.charAt(0)\n words.push(frame.prefix)\n }\n\n for (var i = 0; i < len; i++) {\n var edge = edges[i]\n\n stack.push({\n prefix: frame.prefix.concat(edge),\n node: frame.node.edges[edge]\n })\n }\n }\n\n return words\n}\n\n/**\n * Generates a string representation of a TokenSet.\n *\n * This is intended to allow TokenSets to be used as keys\n * in objects, largely to aid the construction and minimisation\n * of a TokenSet. As such it is not designed to be a human\n * friendly representation of the TokenSet.\n *\n * @returns {string}\n */\nlunr.TokenSet.prototype.toString = function () {\n // NOTE: Using Object.keys here as this.edges is very likely\n // to enter 'hash-mode' with many keys being added\n //\n // avoiding a for-in loop here as it leads to the function\n // being de-optimised (at least in V8). From some simple\n // benchmarks the performance is comparable, but allowing\n // V8 to optimize may mean easy performance wins in the future.\n\n if (this._str) {\n return this._str\n }\n\n var str = this.final ? '1' : '0',\n labels = Object.keys(this.edges).sort(),\n len = labels.length\n\n for (var i = 0; i < len; i++) {\n var label = labels[i],\n node = this.edges[label]\n\n str = str + label + node.id\n }\n\n return str\n}\n\n/**\n * Returns a new TokenSet that is the intersection of\n * this TokenSet and the passed TokenSet.\n *\n * This intersection will take into account any wildcards\n * contained within the TokenSet.\n *\n * @param {lunr.TokenSet} b - An other TokenSet to intersect with.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.prototype.intersect = function (b) {\n var output = new lunr.TokenSet,\n frame = undefined\n\n var stack = [{\n qNode: b,\n output: output,\n node: this\n }]\n\n while (stack.length) {\n frame = stack.pop()\n\n // NOTE: As with the #toString method, we are using\n // Object.keys and a for loop instead of a for-in loop\n // as both of these objects enter 'hash' mode, causing\n // the function to be de-optimised in V8\n var qEdges = Object.keys(frame.qNode.edges),\n qLen = qEdges.length,\n nEdges = Object.keys(frame.node.edges),\n nLen = nEdges.length\n\n for (var q = 0; q < qLen; q++) {\n var qEdge = qEdges[q]\n\n for (var n = 0; n < nLen; n++) {\n var nEdge = nEdges[n]\n\n if (nEdge == qEdge || qEdge == '*') {\n var node = frame.node.edges[nEdge],\n qNode = frame.qNode.edges[qEdge],\n final = node.final && qNode.final,\n next = undefined\n\n if (nEdge in frame.output.edges) {\n // an edge already exists for this character\n // no need to create a new node, just set the finality\n // bit unless this node is already final\n next = frame.output.edges[nEdge]\n next.final = next.final || final\n\n } else {\n // no edge exists yet, must create one\n // set the finality bit and insert it\n // into the output\n next = new lunr.TokenSet\n next.final = final\n frame.output.edges[nEdge] = next\n }\n\n stack.push({\n qNode: qNode,\n output: next,\n node: node\n })\n }\n }\n }\n }\n\n return output\n}\nlunr.TokenSet.Builder = function () {\n this.previousWord = \"\"\n this.root = new lunr.TokenSet\n this.uncheckedNodes = []\n this.minimizedNodes = {}\n}\n\nlunr.TokenSet.Builder.prototype.insert = function (word) {\n var node,\n commonPrefix = 0\n\n if (word < this.previousWord) {\n throw new Error (\"Out of order word insertion\")\n }\n\n for (var i = 0; i < word.length && i < this.previousWord.length; i++) {\n if (word[i] != this.previousWord[i]) break\n commonPrefix++\n }\n\n this.minimize(commonPrefix)\n\n if (this.uncheckedNodes.length == 0) {\n node = this.root\n } else {\n node = this.uncheckedNodes[this.uncheckedNodes.length - 1].child\n }\n\n for (var i = commonPrefix; i < word.length; i++) {\n var nextNode = new lunr.TokenSet,\n char = word[i]\n\n node.edges[char] = nextNode\n\n this.uncheckedNodes.push({\n parent: node,\n char: char,\n child: nextNode\n })\n\n node = nextNode\n }\n\n node.final = true\n this.previousWord = word\n}\n\nlunr.TokenSet.Builder.prototype.finish = function () {\n this.minimize(0)\n}\n\nlunr.TokenSet.Builder.prototype.minimize = function (downTo) {\n for (var i = this.uncheckedNodes.length - 1; i >= downTo; i--) {\n var node = this.uncheckedNodes[i],\n childKey = node.child.toString()\n\n if (childKey in this.minimizedNodes) {\n node.parent.edges[node.char] = this.minimizedNodes[childKey]\n } else {\n // Cache the key for this node since\n // we know it can't change anymore\n node.child._str = childKey\n\n this.minimizedNodes[childKey] = node.child\n }\n\n this.uncheckedNodes.pop()\n }\n}\n/*!\n * lunr.Index\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * An index contains the built index of all documents and provides a query interface\n * to the index.\n *\n * Usually instances of lunr.Index will not be created using this constructor, instead\n * lunr.Builder should be used to construct new indexes, or lunr.Index.load should be\n * used to load previously built and serialized indexes.\n *\n * @constructor\n * @param {Object} attrs - The attributes of the built search index.\n * @param {Object} attrs.invertedIndex - An index of term/field to document reference.\n * @param {Object} attrs.fieldVectors - Field vectors\n * @param {lunr.TokenSet} attrs.tokenSet - An set of all corpus tokens.\n * @param {string[]} attrs.fields - The names of indexed document fields.\n * @param {lunr.Pipeline} attrs.pipeline - The pipeline to use for search terms.\n */\nlunr.Index = function (attrs) {\n this.invertedIndex = attrs.invertedIndex\n this.fieldVectors = attrs.fieldVectors\n this.tokenSet = attrs.tokenSet\n this.fields = attrs.fields\n this.pipeline = attrs.pipeline\n}\n\n/**\n * A result contains details of a document matching a search query.\n * @typedef {Object} lunr.Index~Result\n * @property {string} ref - The reference of the document this result represents.\n * @property {number} score - A number between 0 and 1 representing how similar this document is to the query.\n * @property {lunr.MatchData} matchData - Contains metadata about this match including which term(s) caused the match.\n */\n\n/**\n * Although lunr provides the ability to create queries using lunr.Query, it also provides a simple\n * query language which itself is parsed into an instance of lunr.Query.\n *\n * For programmatically building queries it is advised to directly use lunr.Query, the query language\n * is best used for human entered text rather than program generated text.\n *\n * At its simplest queries can just be a single term, e.g. `hello`, multiple terms are also supported\n * and will be combined with OR, e.g `hello world` will match documents that contain either 'hello'\n * or 'world', though those that contain both will rank higher in the results.\n *\n * Wildcards can be included in terms to match one or more unspecified characters, these wildcards can\n * be inserted anywhere within the term, and more than one wildcard can exist in a single term. Adding\n * wildcards will increase the number of documents that will be found but can also have a negative\n * impact on query performance, especially with wildcards at the beginning of a term.\n *\n * Terms can be restricted to specific fields, e.g. `title:hello`, only documents with the term\n * hello in the title field will match this query. Using a field not present in the index will lead\n * to an error being thrown.\n *\n * Modifiers can also be added to terms, lunr supports edit distance and boost modifiers on terms. A term\n * boost will make documents matching that term score higher, e.g. `foo^5`. Edit distance is also supported\n * to provide fuzzy matching, e.g. 'hello~2' will match documents with hello with an edit distance of 2.\n * Avoid large values for edit distance to improve query performance.\n *\n * Each term also supports a presence modifier. By default a term's presence in document is optional, however\n * this can be changed to either required or prohibited. For a term's presence to be required in a document the\n * term should be prefixed with a '+', e.g. `+foo bar` is a search for documents that must contain 'foo' and\n * optionally contain 'bar'. Conversely a leading '-' sets the terms presence to prohibited, i.e. it must not\n * appear in a document, e.g. `-foo bar` is a search for documents that do not contain 'foo' but may contain 'bar'.\n *\n * To escape special characters the backslash character '\\' can be used, this allows searches to include\n * characters that would normally be considered modifiers, e.g. `foo\\~2` will search for a term \"foo~2\" instead\n * of attempting to apply a boost of 2 to the search term \"foo\".\n *\n * @typedef {string} lunr.Index~QueryString\n * @example Simple single term query\n * hello\n * @example Multiple term query\n * hello world\n * @example term scoped to a field\n * title:hello\n * @example term with a boost of 10\n * hello^10\n * @example term with an edit distance of 2\n * hello~2\n * @example terms with presence modifiers\n * -foo +bar baz\n */\n\n/**\n * Performs a search against the index using lunr query syntax.\n *\n * Results will be returned sorted by their score, the most relevant results\n * will be returned first. For details on how the score is calculated, please see\n * the {@link https://lunrjs.com/guides/searching.html#scoring|guide}.\n *\n * For more programmatic querying use lunr.Index#query.\n *\n * @param {lunr.Index~QueryString} queryString - A string containing a lunr query.\n * @throws {lunr.QueryParseError} If the passed query string cannot be parsed.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.search = function (queryString) {\n return this.query(function (query) {\n var parser = new lunr.QueryParser(queryString, query)\n parser.parse()\n })\n}\n\n/**\n * A query builder callback provides a query object to be used to express\n * the query to perform on the index.\n *\n * @callback lunr.Index~queryBuilder\n * @param {lunr.Query} query - The query object to build up.\n * @this lunr.Query\n */\n\n/**\n * Performs a query against the index using the yielded lunr.Query object.\n *\n * If performing programmatic queries against the index, this method is preferred\n * over lunr.Index#search so as to avoid the additional query parsing overhead.\n *\n * A query object is yielded to the supplied function which should be used to\n * express the query to be run against the index.\n *\n * Note that although this function takes a callback parameter it is _not_ an\n * asynchronous operation, the callback is just yielded a query object to be\n * customized.\n *\n * @param {lunr.Index~queryBuilder} fn - A function that is used to build the query.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.query = function (fn) {\n // for each query clause\n // * process terms\n // * expand terms from token set\n // * find matching documents and metadata\n // * get document vectors\n // * score documents\n\n var query = new lunr.Query(this.fields),\n matchingFields = Object.create(null),\n queryVectors = Object.create(null),\n termFieldCache = Object.create(null),\n requiredMatches = Object.create(null),\n prohibitedMatches = Object.create(null)\n\n /*\n * To support field level boosts a query vector is created per\n * field. An empty vector is eagerly created to support negated\n * queries.\n */\n for (var i = 0; i < this.fields.length; i++) {\n queryVectors[this.fields[i]] = new lunr.Vector\n }\n\n fn.call(query, query)\n\n for (var i = 0; i < query.clauses.length; i++) {\n /*\n * Unless the pipeline has been disabled for this term, which is\n * the case for terms with wildcards, we need to pass the clause\n * term through the search pipeline. A pipeline returns an array\n * of processed terms. Pipeline functions may expand the passed\n * term, which means we may end up performing multiple index lookups\n * for a single query term.\n */\n var clause = query.clauses[i],\n terms = null,\n clauseMatches = lunr.Set.empty\n\n if (clause.usePipeline) {\n terms = this.pipeline.runString(clause.term, {\n fields: clause.fields\n })\n } else {\n terms = [clause.term]\n }\n\n for (var m = 0; m < terms.length; m++) {\n var term = terms[m]\n\n /*\n * Each term returned from the pipeline needs to use the same query\n * clause object, e.g. the same boost and or edit distance. The\n * simplest way to do this is to re-use the clause object but mutate\n * its term property.\n */\n clause.term = term\n\n /*\n * From the term in the clause we create a token set which will then\n * be used to intersect the indexes token set to get a list of terms\n * to lookup in the inverted index\n */\n var termTokenSet = lunr.TokenSet.fromClause(clause),\n expandedTerms = this.tokenSet.intersect(termTokenSet).toArray()\n\n /*\n * If a term marked as required does not exist in the tokenSet it is\n * impossible for the search to return any matches. We set all the field\n * scoped required matches set to empty and stop examining any further\n * clauses.\n */\n if (expandedTerms.length === 0 && clause.presence === lunr.Query.presence.REQUIRED) {\n for (var k = 0; k < clause.fields.length; k++) {\n var field = clause.fields[k]\n requiredMatches[field] = lunr.Set.empty\n }\n\n break\n }\n\n for (var j = 0; j < expandedTerms.length; j++) {\n /*\n * For each term get the posting and termIndex, this is required for\n * building the query vector.\n */\n var expandedTerm = expandedTerms[j],\n posting = this.invertedIndex[expandedTerm],\n termIndex = posting._index\n\n for (var k = 0; k < clause.fields.length; k++) {\n /*\n * For each field that this query term is scoped by (by default\n * all fields are in scope) we need to get all the document refs\n * that have this term in that field.\n *\n * The posting is the entry in the invertedIndex for the matching\n * term from above.\n */\n var field = clause.fields[k],\n fieldPosting = posting[field],\n matchingDocumentRefs = Object.keys(fieldPosting),\n termField = expandedTerm + \"/\" + field,\n matchingDocumentsSet = new lunr.Set(matchingDocumentRefs)\n\n /*\n * if the presence of this term is required ensure that the matching\n * documents are added to the set of required matches for this clause.\n *\n */\n if (clause.presence == lunr.Query.presence.REQUIRED) {\n clauseMatches = clauseMatches.union(matchingDocumentsSet)\n\n if (requiredMatches[field] === undefined) {\n requiredMatches[field] = lunr.Set.complete\n }\n }\n\n /*\n * if the presence of this term is prohibited ensure that the matching\n * documents are added to the set of prohibited matches for this field,\n * creating that set if it does not yet exist.\n */\n if (clause.presence == lunr.Query.presence.PROHIBITED) {\n if (prohibitedMatches[field] === undefined) {\n prohibitedMatches[field] = lunr.Set.empty\n }\n\n prohibitedMatches[field] = prohibitedMatches[field].union(matchingDocumentsSet)\n\n /*\n * Prohibited matches should not be part of the query vector used for\n * similarity scoring and no metadata should be extracted so we continue\n * to the next field\n */\n continue\n }\n\n /*\n * The query field vector is populated using the termIndex found for\n * the term and a unit value with the appropriate boost applied.\n * Using upsert because there could already be an entry in the vector\n * for the term we are working with. In that case we just add the scores\n * together.\n */\n queryVectors[field].upsert(termIndex, clause.boost, function (a, b) { return a + b })\n\n /**\n * If we've already seen this term, field combo then we've already collected\n * the matching documents and metadata, no need to go through all that again\n */\n if (termFieldCache[termField]) {\n continue\n }\n\n for (var l = 0; l < matchingDocumentRefs.length; l++) {\n /*\n * All metadata for this term/field/document triple\n * are then extracted and collected into an instance\n * of lunr.MatchData ready to be returned in the query\n * results\n */\n var matchingDocumentRef = matchingDocumentRefs[l],\n matchingFieldRef = new lunr.FieldRef (matchingDocumentRef, field),\n metadata = fieldPosting[matchingDocumentRef],\n fieldMatch\n\n if ((fieldMatch = matchingFields[matchingFieldRef]) === undefined) {\n matchingFields[matchingFieldRef] = new lunr.MatchData (expandedTerm, field, metadata)\n } else {\n fieldMatch.add(expandedTerm, field, metadata)\n }\n\n }\n\n termFieldCache[termField] = true\n }\n }\n }\n\n /**\n * If the presence was required we need to update the requiredMatches field sets.\n * We do this after all fields for the term have collected their matches because\n * the clause terms presence is required in _any_ of the fields not _all_ of the\n * fields.\n */\n if (clause.presence === lunr.Query.presence.REQUIRED) {\n for (var k = 0; k < clause.fields.length; k++) {\n var field = clause.fields[k]\n requiredMatches[field] = requiredMatches[field].intersect(clauseMatches)\n }\n }\n }\n\n /**\n * Need to combine the field scoped required and prohibited\n * matching documents into a global set of required and prohibited\n * matches\n */\n var allRequiredMatches = lunr.Set.complete,\n allProhibitedMatches = lunr.Set.empty\n\n for (var i = 0; i < this.fields.length; i++) {\n var field = this.fields[i]\n\n if (requiredMatches[field]) {\n allRequiredMatches = allRequiredMatches.intersect(requiredMatches[field])\n }\n\n if (prohibitedMatches[field]) {\n allProhibitedMatches = allProhibitedMatches.union(prohibitedMatches[field])\n }\n }\n\n var matchingFieldRefs = Object.keys(matchingFields),\n results = [],\n matches = Object.create(null)\n\n /*\n * If the query is negated (contains only prohibited terms)\n * we need to get _all_ fieldRefs currently existing in the\n * index. This is only done when we know that the query is\n * entirely prohibited terms to avoid any cost of getting all\n * fieldRefs unnecessarily.\n *\n * Additionally, blank MatchData must be created to correctly\n * populate the results.\n */\n if (query.isNegated()) {\n matchingFieldRefs = Object.keys(this.fieldVectors)\n\n for (var i = 0; i < matchingFieldRefs.length; i++) {\n var matchingFieldRef = matchingFieldRefs[i]\n var fieldRef = lunr.FieldRef.fromString(matchingFieldRef)\n matchingFields[matchingFieldRef] = new lunr.MatchData\n }\n }\n\n for (var i = 0; i < matchingFieldRefs.length; i++) {\n /*\n * Currently we have document fields that match the query, but we\n * need to return documents. The matchData and scores are combined\n * from multiple fields belonging to the same document.\n *\n * Scores are calculated by field, using the query vectors created\n * above, and combined into a final document score using addition.\n */\n var fieldRef = lunr.FieldRef.fromString(matchingFieldRefs[i]),\n docRef = fieldRef.docRef\n\n if (!allRequiredMatches.contains(docRef)) {\n continue\n }\n\n if (allProhibitedMatches.contains(docRef)) {\n continue\n }\n\n var fieldVector = this.fieldVectors[fieldRef],\n score = queryVectors[fieldRef.fieldName].similarity(fieldVector),\n docMatch\n\n if ((docMatch = matches[docRef]) !== undefined) {\n docMatch.score += score\n docMatch.matchData.combine(matchingFields[fieldRef])\n } else {\n var match = {\n ref: docRef,\n score: score,\n matchData: matchingFields[fieldRef]\n }\n matches[docRef] = match\n results.push(match)\n }\n }\n\n /*\n * Sort the results objects by score, highest first.\n */\n return results.sort(function (a, b) {\n return b.score - a.score\n })\n}\n\n/**\n * Prepares the index for JSON serialization.\n *\n * The schema for this JSON blob will be described in a\n * separate JSON schema file.\n *\n * @returns {Object}\n */\nlunr.Index.prototype.toJSON = function () {\n var invertedIndex = Object.keys(this.invertedIndex)\n .sort()\n .map(function (term) {\n return [term, this.invertedIndex[term]]\n }, this)\n\n var fieldVectors = Object.keys(this.fieldVectors)\n .map(function (ref) {\n return [ref, this.fieldVectors[ref].toJSON()]\n }, this)\n\n return {\n version: lunr.version,\n fields: this.fields,\n fieldVectors: fieldVectors,\n invertedIndex: invertedIndex,\n pipeline: this.pipeline.toJSON()\n }\n}\n\n/**\n * Loads a previously serialized lunr.Index\n *\n * @param {Object} serializedIndex - A previously serialized lunr.Index\n * @returns {lunr.Index}\n */\nlunr.Index.load = function (serializedIndex) {\n var attrs = {},\n fieldVectors = {},\n serializedVectors = serializedIndex.fieldVectors,\n invertedIndex = Object.create(null),\n serializedInvertedIndex = serializedIndex.invertedIndex,\n tokenSetBuilder = new lunr.TokenSet.Builder,\n pipeline = lunr.Pipeline.load(serializedIndex.pipeline)\n\n if (serializedIndex.version != lunr.version) {\n lunr.utils.warn(\"Version mismatch when loading serialised index. Current version of lunr '\" + lunr.version + \"' does not match serialized index '\" + serializedIndex.version + \"'\")\n }\n\n for (var i = 0; i < serializedVectors.length; i++) {\n var tuple = serializedVectors[i],\n ref = tuple[0],\n elements = tuple[1]\n\n fieldVectors[ref] = new lunr.Vector(elements)\n }\n\n for (var i = 0; i < serializedInvertedIndex.length; i++) {\n var tuple = serializedInvertedIndex[i],\n term = tuple[0],\n posting = tuple[1]\n\n tokenSetBuilder.insert(term)\n invertedIndex[term] = posting\n }\n\n tokenSetBuilder.finish()\n\n attrs.fields = serializedIndex.fields\n\n attrs.fieldVectors = fieldVectors\n attrs.invertedIndex = invertedIndex\n attrs.tokenSet = tokenSetBuilder.root\n attrs.pipeline = pipeline\n\n return new lunr.Index(attrs)\n}\n/*!\n * lunr.Builder\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.Builder performs indexing on a set of documents and\n * returns instances of lunr.Index ready for querying.\n *\n * All configuration of the index is done via the builder, the\n * fields to index, the document reference, the text processing\n * pipeline and document scoring parameters are all set on the\n * builder before indexing.\n *\n * @constructor\n * @property {string} _ref - Internal reference to the document reference field.\n * @property {string[]} _fields - Internal reference to the document fields to index.\n * @property {object} invertedIndex - The inverted index maps terms to document fields.\n * @property {object} documentTermFrequencies - Keeps track of document term frequencies.\n * @property {object} documentLengths - Keeps track of the length of documents added to the index.\n * @property {lunr.tokenizer} tokenizer - Function for splitting strings into tokens for indexing.\n * @property {lunr.Pipeline} pipeline - The pipeline performs text processing on tokens before indexing.\n * @property {lunr.Pipeline} searchPipeline - A pipeline for processing search terms before querying the index.\n * @property {number} documentCount - Keeps track of the total number of documents indexed.\n * @property {number} _b - A parameter to control field length normalization, setting this to 0 disabled normalization, 1 fully normalizes field lengths, the default value is 0.75.\n * @property {number} _k1 - A parameter to control how quickly an increase in term frequency results in term frequency saturation, the default value is 1.2.\n * @property {number} termIndex - A counter incremented for each unique term, used to identify a terms position in the vector space.\n * @property {array} metadataWhitelist - A list of metadata keys that have been whitelisted for entry in the index.\n */\nlunr.Builder = function () {\n this._ref = \"id\"\n this._fields = Object.create(null)\n this._documents = Object.create(null)\n this.invertedIndex = Object.create(null)\n this.fieldTermFrequencies = {}\n this.fieldLengths = {}\n this.tokenizer = lunr.tokenizer\n this.pipeline = new lunr.Pipeline\n this.searchPipeline = new lunr.Pipeline\n this.documentCount = 0\n this._b = 0.75\n this._k1 = 1.2\n this.termIndex = 0\n this.metadataWhitelist = []\n}\n\n/**\n * Sets the document field used as the document reference. Every document must have this field.\n * The type of this field in the document should be a string, if it is not a string it will be\n * coerced into a string by calling toString.\n *\n * The default ref is 'id'.\n *\n * The ref should _not_ be changed during indexing, it should be set before any documents are\n * added to the index. Changing it during indexing can lead to inconsistent results.\n *\n * @param {string} ref - The name of the reference field in the document.\n */\nlunr.Builder.prototype.ref = function (ref) {\n this._ref = ref\n}\n\n/**\n * A function that is used to extract a field from a document.\n *\n * Lunr expects a field to be at the top level of a document, if however the field\n * is deeply nested within a document an extractor function can be used to extract\n * the right field for indexing.\n *\n * @callback fieldExtractor\n * @param {object} doc - The document being added to the index.\n * @returns {?(string|object|object[])} obj - The object that will be indexed for this field.\n * @example Extracting a nested field\n * function (doc) { return doc.nested.field }\n */\n\n/**\n * Adds a field to the list of document fields that will be indexed. Every document being\n * indexed should have this field. Null values for this field in indexed documents will\n * not cause errors but will limit the chance of that document being retrieved by searches.\n *\n * All fields should be added before adding documents to the index. Adding fields after\n * a document has been indexed will have no effect on already indexed documents.\n *\n * Fields can be boosted at build time. This allows terms within that field to have more\n * importance when ranking search results. Use a field boost to specify that matches within\n * one field are more important than other fields.\n *\n * @param {string} fieldName - The name of a field to index in all documents.\n * @param {object} attributes - Optional attributes associated with this field.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this field.\n * @param {fieldExtractor} [attributes.extractor] - Function to extract a field from a document.\n * @throws {RangeError} fieldName cannot contain unsupported characters '/'\n */\nlunr.Builder.prototype.field = function (fieldName, attributes) {\n if (/\\//.test(fieldName)) {\n throw new RangeError (\"Field '\" + fieldName + \"' contains illegal character '/'\")\n }\n\n this._fields[fieldName] = attributes || {}\n}\n\n/**\n * A parameter to tune the amount of field length normalisation that is applied when\n * calculating relevance scores. A value of 0 will completely disable any normalisation\n * and a value of 1 will fully normalise field lengths. The default is 0.75. Values of b\n * will be clamped to the range 0 - 1.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.b = function (number) {\n if (number < 0) {\n this._b = 0\n } else if (number > 1) {\n this._b = 1\n } else {\n this._b = number\n }\n}\n\n/**\n * A parameter that controls the speed at which a rise in term frequency results in term\n * frequency saturation. The default value is 1.2. Setting this to a higher value will give\n * slower saturation levels, a lower value will result in quicker saturation.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.k1 = function (number) {\n this._k1 = number\n}\n\n/**\n * Adds a document to the index.\n *\n * Before adding fields to the index the index should have been fully setup, with the document\n * ref and all fields to index already having been specified.\n *\n * The document must have a field name as specified by the ref (by default this is 'id') and\n * it should have all fields defined for indexing, though null or undefined values will not\n * cause errors.\n *\n * Entire documents can be boosted at build time. Applying a boost to a document indicates that\n * this document should rank higher in search results than other documents.\n *\n * @param {object} doc - The document to add to the index.\n * @param {object} attributes - Optional attributes associated with this document.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this document.\n */\nlunr.Builder.prototype.add = function (doc, attributes) {\n var docRef = doc[this._ref],\n fields = Object.keys(this._fields)\n\n this._documents[docRef] = attributes || {}\n this.documentCount += 1\n\n for (var i = 0; i < fields.length; i++) {\n var fieldName = fields[i],\n extractor = this._fields[fieldName].extractor,\n field = extractor ? extractor(doc) : doc[fieldName],\n tokens = this.tokenizer(field, {\n fields: [fieldName]\n }),\n terms = this.pipeline.run(tokens),\n fieldRef = new lunr.FieldRef (docRef, fieldName),\n fieldTerms = Object.create(null)\n\n this.fieldTermFrequencies[fieldRef] = fieldTerms\n this.fieldLengths[fieldRef] = 0\n\n // store the length of this field for this document\n this.fieldLengths[fieldRef] += terms.length\n\n // calculate term frequencies for this field\n for (var j = 0; j < terms.length; j++) {\n var term = terms[j]\n\n if (fieldTerms[term] == undefined) {\n fieldTerms[term] = 0\n }\n\n fieldTerms[term] += 1\n\n // add to inverted index\n // create an initial posting if one doesn't exist\n if (this.invertedIndex[term] == undefined) {\n var posting = Object.create(null)\n posting[\"_index\"] = this.termIndex\n this.termIndex += 1\n\n for (var k = 0; k < fields.length; k++) {\n posting[fields[k]] = Object.create(null)\n }\n\n this.invertedIndex[term] = posting\n }\n\n // add an entry for this term/fieldName/docRef to the invertedIndex\n if (this.invertedIndex[term][fieldName][docRef] == undefined) {\n this.invertedIndex[term][fieldName][docRef] = Object.create(null)\n }\n\n // store all whitelisted metadata about this token in the\n // inverted index\n for (var l = 0; l < this.metadataWhitelist.length; l++) {\n var metadataKey = this.metadataWhitelist[l],\n metadata = term.metadata[metadataKey]\n\n if (this.invertedIndex[term][fieldName][docRef][metadataKey] == undefined) {\n this.invertedIndex[term][fieldName][docRef][metadataKey] = []\n }\n\n this.invertedIndex[term][fieldName][docRef][metadataKey].push(metadata)\n }\n }\n\n }\n}\n\n/**\n * Calculates the average document length for this index\n *\n * @private\n */\nlunr.Builder.prototype.calculateAverageFieldLengths = function () {\n\n var fieldRefs = Object.keys(this.fieldLengths),\n numberOfFields = fieldRefs.length,\n accumulator = {},\n documentsWithField = {}\n\n for (var i = 0; i < numberOfFields; i++) {\n var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n field = fieldRef.fieldName\n\n documentsWithField[field] || (documentsWithField[field] = 0)\n documentsWithField[field] += 1\n\n accumulator[field] || (accumulator[field] = 0)\n accumulator[field] += this.fieldLengths[fieldRef]\n }\n\n var fields = Object.keys(this._fields)\n\n for (var i = 0; i < fields.length; i++) {\n var fieldName = fields[i]\n accumulator[fieldName] = accumulator[fieldName] / documentsWithField[fieldName]\n }\n\n this.averageFieldLength = accumulator\n}\n\n/**\n * Builds a vector space model of every document using lunr.Vector\n *\n * @private\n */\nlunr.Builder.prototype.createFieldVectors = function () {\n var fieldVectors = {},\n fieldRefs = Object.keys(this.fieldTermFrequencies),\n fieldRefsLength = fieldRefs.length,\n termIdfCache = Object.create(null)\n\n for (var i = 0; i < fieldRefsLength; i++) {\n var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n fieldName = fieldRef.fieldName,\n fieldLength = this.fieldLengths[fieldRef],\n fieldVector = new lunr.Vector,\n termFrequencies = this.fieldTermFrequencies[fieldRef],\n terms = Object.keys(termFrequencies),\n termsLength = terms.length\n\n\n var fieldBoost = this._fields[fieldName].boost || 1,\n docBoost = this._documents[fieldRef.docRef].boost || 1\n\n for (var j = 0; j < termsLength; j++) {\n var term = terms[j],\n tf = termFrequencies[term],\n termIndex = this.invertedIndex[term]._index,\n idf, score, scoreWithPrecision\n\n if (termIdfCache[term] === undefined) {\n idf = lunr.idf(this.invertedIndex[term], this.documentCount)\n termIdfCache[term] = idf\n } else {\n idf = termIdfCache[term]\n }\n\n score = idf * ((this._k1 + 1) * tf) / (this._k1 * (1 - this._b + this._b * (fieldLength / this.averageFieldLength[fieldName])) + tf)\n score *= fieldBoost\n score *= docBoost\n scoreWithPrecision = Math.round(score * 1000) / 1000\n // Converts 1.23456789 to 1.234.\n // Reducing the precision so that the vectors take up less\n // space when serialised. Doing it now so that they behave\n // the same before and after serialisation. Also, this is\n // the fastest approach to reducing a number's precision in\n // JavaScript.\n\n fieldVector.insert(termIndex, scoreWithPrecision)\n }\n\n fieldVectors[fieldRef] = fieldVector\n }\n\n this.fieldVectors = fieldVectors\n}\n\n/**\n * Creates a token set of all tokens in the index using lunr.TokenSet\n *\n * @private\n */\nlunr.Builder.prototype.createTokenSet = function () {\n this.tokenSet = lunr.TokenSet.fromArray(\n Object.keys(this.invertedIndex).sort()\n )\n}\n\n/**\n * Builds the index, creating an instance of lunr.Index.\n *\n * This completes the indexing process and should only be called\n * once all documents have been added to the index.\n *\n * @returns {lunr.Index}\n */\nlunr.Builder.prototype.build = function () {\n this.calculateAverageFieldLengths()\n this.createFieldVectors()\n this.createTokenSet()\n\n return new lunr.Index({\n invertedIndex: this.invertedIndex,\n fieldVectors: this.fieldVectors,\n tokenSet: this.tokenSet,\n fields: Object.keys(this._fields),\n pipeline: this.searchPipeline\n })\n}\n\n/**\n * Applies a plugin to the index builder.\n *\n * A plugin is a function that is called with the index builder as its context.\n * Plugins can be used to customise or extend the behaviour of the index\n * in some way. A plugin is just a function, that encapsulated the custom\n * behaviour that should be applied when building the index.\n *\n * The plugin function will be called with the index builder as its argument, additional\n * arguments can also be passed when calling use. The function will be called\n * with the index builder as its context.\n *\n * @param {Function} plugin The plugin to apply.\n */\nlunr.Builder.prototype.use = function (fn) {\n var args = Array.prototype.slice.call(arguments, 1)\n args.unshift(this)\n fn.apply(this, args)\n}\n/**\n * Contains and collects metadata about a matching document.\n * A single instance of lunr.MatchData is returned as part of every\n * lunr.Index~Result.\n *\n * @constructor\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n * @property {object} metadata - A cloned collection of metadata associated with this document.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData = function (term, field, metadata) {\n var clonedMetadata = Object.create(null),\n metadataKeys = Object.keys(metadata || {})\n\n // Cloning the metadata to prevent the original\n // being mutated during match data combination.\n // Metadata is kept in an array within the inverted\n // index so cloning the data can be done with\n // Array#slice\n for (var i = 0; i < metadataKeys.length; i++) {\n var key = metadataKeys[i]\n clonedMetadata[key] = metadata[key].slice()\n }\n\n this.metadata = Object.create(null)\n\n if (term !== undefined) {\n this.metadata[term] = Object.create(null)\n this.metadata[term][field] = clonedMetadata\n }\n}\n\n/**\n * An instance of lunr.MatchData will be created for every term that matches a\n * document. However only one instance is required in a lunr.Index~Result. This\n * method combines metadata from another instance of lunr.MatchData with this\n * objects metadata.\n *\n * @param {lunr.MatchData} otherMatchData - Another instance of match data to merge with this one.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData.prototype.combine = function (otherMatchData) {\n var terms = Object.keys(otherMatchData.metadata)\n\n for (var i = 0; i < terms.length; i++) {\n var term = terms[i],\n fields = Object.keys(otherMatchData.metadata[term])\n\n if (this.metadata[term] == undefined) {\n this.metadata[term] = Object.create(null)\n }\n\n for (var j = 0; j < fields.length; j++) {\n var field = fields[j],\n keys = Object.keys(otherMatchData.metadata[term][field])\n\n if (this.metadata[term][field] == undefined) {\n this.metadata[term][field] = Object.create(null)\n }\n\n for (var k = 0; k < keys.length; k++) {\n var key = keys[k]\n\n if (this.metadata[term][field][key] == undefined) {\n this.metadata[term][field][key] = otherMatchData.metadata[term][field][key]\n } else {\n this.metadata[term][field][key] = this.metadata[term][field][key].concat(otherMatchData.metadata[term][field][key])\n }\n\n }\n }\n }\n}\n\n/**\n * Add metadata for a term/field pair to this instance of match data.\n *\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n */\nlunr.MatchData.prototype.add = function (term, field, metadata) {\n if (!(term in this.metadata)) {\n this.metadata[term] = Object.create(null)\n this.metadata[term][field] = metadata\n return\n }\n\n if (!(field in this.metadata[term])) {\n this.metadata[term][field] = metadata\n return\n }\n\n var metadataKeys = Object.keys(metadata)\n\n for (var i = 0; i < metadataKeys.length; i++) {\n var key = metadataKeys[i]\n\n if (key in this.metadata[term][field]) {\n this.metadata[term][field][key] = this.metadata[term][field][key].concat(metadata[key])\n } else {\n this.metadata[term][field][key] = metadata[key]\n }\n }\n}\n/**\n * A lunr.Query provides a programmatic way of defining queries to be performed\n * against a {@link lunr.Index}.\n *\n * Prefer constructing a lunr.Query using the {@link lunr.Index#query} method\n * so the query object is pre-initialized with the right index fields.\n *\n * @constructor\n * @property {lunr.Query~Clause[]} clauses - An array of query clauses.\n * @property {string[]} allFields - An array of all available fields in a lunr.Index.\n */\nlunr.Query = function (allFields) {\n this.clauses = []\n this.allFields = allFields\n}\n\n/**\n * Constants for indicating what kind of automatic wildcard insertion will be used when constructing a query clause.\n *\n * This allows wildcards to be added to the beginning and end of a term without having to manually do any string\n * concatenation.\n *\n * The wildcard constants can be bitwise combined to select both leading and trailing wildcards.\n *\n * @constant\n * @default\n * @property {number} wildcard.NONE - The term will have no wildcards inserted, this is the default behaviour\n * @property {number} wildcard.LEADING - Prepend the term with a wildcard, unless a leading wildcard already exists\n * @property {number} wildcard.TRAILING - Append a wildcard to the term, unless a trailing wildcard already exists\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example query term with trailing wildcard\n * query.term('foo', { wildcard: lunr.Query.wildcard.TRAILING })\n * @example query term with leading and trailing wildcard\n * query.term('foo', {\n * wildcard: lunr.Query.wildcard.LEADING | lunr.Query.wildcard.TRAILING\n * })\n */\n\nlunr.Query.wildcard = new String (\"*\")\nlunr.Query.wildcard.NONE = 0\nlunr.Query.wildcard.LEADING = 1\nlunr.Query.wildcard.TRAILING = 2\n\n/**\n * Constants for indicating what kind of presence a term must have in matching documents.\n *\n * @constant\n * @enum {number}\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example query term with required presence\n * query.term('foo', { presence: lunr.Query.presence.REQUIRED })\n */\nlunr.Query.presence = {\n /**\n * Term's presence in a document is optional, this is the default value.\n */\n OPTIONAL: 1,\n\n /**\n * Term's presence in a document is required, documents that do not contain\n * this term will not be returned.\n */\n REQUIRED: 2,\n\n /**\n * Term's presence in a document is prohibited, documents that do contain\n * this term will not be returned.\n */\n PROHIBITED: 3\n}\n\n/**\n * A single clause in a {@link lunr.Query} contains a term and details on how to\n * match that term against a {@link lunr.Index}.\n *\n * @typedef {Object} lunr.Query~Clause\n * @property {string[]} fields - The fields in an index this clause should be matched against.\n * @property {number} [boost=1] - Any boost that should be applied when matching this clause.\n * @property {number} [editDistance] - Whether the term should have fuzzy matching applied, and how fuzzy the match should be.\n * @property {boolean} [usePipeline] - Whether the term should be passed through the search pipeline.\n * @property {number} [wildcard=lunr.Query.wildcard.NONE] - Whether the term should have wildcards appended or prepended.\n * @property {number} [presence=lunr.Query.presence.OPTIONAL] - The terms presence in any matching documents.\n */\n\n/**\n * Adds a {@link lunr.Query~Clause} to this query.\n *\n * Unless the clause contains the fields to be matched all fields will be matched. In addition\n * a default boost of 1 is applied to the clause.\n *\n * @param {lunr.Query~Clause} clause - The clause to add to this query.\n * @see lunr.Query~Clause\n * @returns {lunr.Query}\n */\nlunr.Query.prototype.clause = function (clause) {\n if (!('fields' in clause)) {\n clause.fields = this.allFields\n }\n\n if (!('boost' in clause)) {\n clause.boost = 1\n }\n\n if (!('usePipeline' in clause)) {\n clause.usePipeline = true\n }\n\n if (!('wildcard' in clause)) {\n clause.wildcard = lunr.Query.wildcard.NONE\n }\n\n if ((clause.wildcard & lunr.Query.wildcard.LEADING) && (clause.term.charAt(0) != lunr.Query.wildcard)) {\n clause.term = \"*\" + clause.term\n }\n\n if ((clause.wildcard & lunr.Query.wildcard.TRAILING) && (clause.term.slice(-1) != lunr.Query.wildcard)) {\n clause.term = \"\" + clause.term + \"*\"\n }\n\n if (!('presence' in clause)) {\n clause.presence = lunr.Query.presence.OPTIONAL\n }\n\n this.clauses.push(clause)\n\n return this\n}\n\n/**\n * A negated query is one in which every clause has a presence of\n * prohibited. These queries require some special processing to return\n * the expected results.\n *\n * @returns boolean\n */\nlunr.Query.prototype.isNegated = function () {\n for (var i = 0; i < this.clauses.length; i++) {\n if (this.clauses[i].presence != lunr.Query.presence.PROHIBITED) {\n return false\n }\n }\n\n return true\n}\n\n/**\n * Adds a term to the current query, under the covers this will create a {@link lunr.Query~Clause}\n * to the list of clauses that make up this query.\n *\n * The term is used as is, i.e. no tokenization will be performed by this method. Instead conversion\n * to a token or token-like string should be done before calling this method.\n *\n * The term will be converted to a string by calling `toString`. Multiple terms can be passed as an\n * array, each term in the array will share the same options.\n *\n * @param {object|object[]} term - The term(s) to add to the query.\n * @param {object} [options] - Any additional properties to add to the query clause.\n * @returns {lunr.Query}\n * @see lunr.Query#clause\n * @see lunr.Query~Clause\n * @example adding a single term to a query\n * query.term(\"foo\")\n * @example adding a single term to a query and specifying search fields, term boost and automatic trailing wildcard\n * query.term(\"foo\", {\n * fields: [\"title\"],\n * boost: 10,\n * wildcard: lunr.Query.wildcard.TRAILING\n * })\n * @example using lunr.tokenizer to convert a string to tokens before using them as terms\n * query.term(lunr.tokenizer(\"foo bar\"))\n */\nlunr.Query.prototype.term = function (term, options) {\n if (Array.isArray(term)) {\n term.forEach(function (t) { this.term(t, lunr.utils.clone(options)) }, this)\n return this\n }\n\n var clause = options || {}\n clause.term = term.toString()\n\n this.clause(clause)\n\n return this\n}\nlunr.QueryParseError = function (message, start, end) {\n this.name = \"QueryParseError\"\n this.message = message\n this.start = start\n this.end = end\n}\n\nlunr.QueryParseError.prototype = new Error\nlunr.QueryLexer = function (str) {\n this.lexemes = []\n this.str = str\n this.length = str.length\n this.pos = 0\n this.start = 0\n this.escapeCharPositions = []\n}\n\nlunr.QueryLexer.prototype.run = function () {\n var state = lunr.QueryLexer.lexText\n\n while (state) {\n state = state(this)\n }\n}\n\nlunr.QueryLexer.prototype.sliceString = function () {\n var subSlices = [],\n sliceStart = this.start,\n sliceEnd = this.pos\n\n for (var i = 0; i < this.escapeCharPositions.length; i++) {\n sliceEnd = this.escapeCharPositions[i]\n subSlices.push(this.str.slice(sliceStart, sliceEnd))\n sliceStart = sliceEnd + 1\n }\n\n subSlices.push(this.str.slice(sliceStart, this.pos))\n this.escapeCharPositions.length = 0\n\n return subSlices.join('')\n}\n\nlunr.QueryLexer.prototype.emit = function (type) {\n this.lexemes.push({\n type: type,\n str: this.sliceString(),\n start: this.start,\n end: this.pos\n })\n\n this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.escapeCharacter = function () {\n this.escapeCharPositions.push(this.pos - 1)\n this.pos += 1\n}\n\nlunr.QueryLexer.prototype.next = function () {\n if (this.pos >= this.length) {\n return lunr.QueryLexer.EOS\n }\n\n var char = this.str.charAt(this.pos)\n this.pos += 1\n return char\n}\n\nlunr.QueryLexer.prototype.width = function () {\n return this.pos - this.start\n}\n\nlunr.QueryLexer.prototype.ignore = function () {\n if (this.start == this.pos) {\n this.pos += 1\n }\n\n this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.backup = function () {\n this.pos -= 1\n}\n\nlunr.QueryLexer.prototype.acceptDigitRun = function () {\n var char, charCode\n\n do {\n char = this.next()\n charCode = char.charCodeAt(0)\n } while (charCode > 47 && charCode < 58)\n\n if (char != lunr.QueryLexer.EOS) {\n this.backup()\n }\n}\n\nlunr.QueryLexer.prototype.more = function () {\n return this.pos < this.length\n}\n\nlunr.QueryLexer.EOS = 'EOS'\nlunr.QueryLexer.FIELD = 'FIELD'\nlunr.QueryLexer.TERM = 'TERM'\nlunr.QueryLexer.EDIT_DISTANCE = 'EDIT_DISTANCE'\nlunr.QueryLexer.BOOST = 'BOOST'\nlunr.QueryLexer.PRESENCE = 'PRESENCE'\n\nlunr.QueryLexer.lexField = function (lexer) {\n lexer.backup()\n lexer.emit(lunr.QueryLexer.FIELD)\n lexer.ignore()\n return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexTerm = function (lexer) {\n if (lexer.width() > 1) {\n lexer.backup()\n lexer.emit(lunr.QueryLexer.TERM)\n }\n\n lexer.ignore()\n\n if (lexer.more()) {\n return lunr.QueryLexer.lexText\n }\n}\n\nlunr.QueryLexer.lexEditDistance = function (lexer) {\n lexer.ignore()\n lexer.acceptDigitRun()\n lexer.emit(lunr.QueryLexer.EDIT_DISTANCE)\n return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexBoost = function (lexer) {\n lexer.ignore()\n lexer.acceptDigitRun()\n lexer.emit(lunr.QueryLexer.BOOST)\n return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexEOS = function (lexer) {\n if (lexer.width() > 0) {\n lexer.emit(lunr.QueryLexer.TERM)\n }\n}\n\n// This matches the separator used when tokenising fields\n// within a document. These should match otherwise it is\n// not possible to search for some tokens within a document.\n//\n// It is possible for the user to change the separator on the\n// tokenizer so it _might_ clash with any other of the special\n// characters already used within the search string, e.g. :.\n//\n// This means that it is possible to change the separator in\n// such a way that makes some words unsearchable using a search\n// string.\nlunr.QueryLexer.termSeparator = lunr.tokenizer.separator\n\nlunr.QueryLexer.lexText = function (lexer) {\n while (true) {\n var char = lexer.next()\n\n if (char == lunr.QueryLexer.EOS) {\n return lunr.QueryLexer.lexEOS\n }\n\n // Escape character is '\\'\n if (char.charCodeAt(0) == 92) {\n lexer.escapeCharacter()\n continue\n }\n\n if (char == \":\") {\n return lunr.QueryLexer.lexField\n }\n\n if (char == \"~\") {\n lexer.backup()\n if (lexer.width() > 0) {\n lexer.emit(lunr.QueryLexer.TERM)\n }\n return lunr.QueryLexer.lexEditDistance\n }\n\n if (char == \"^\") {\n lexer.backup()\n if (lexer.width() > 0) {\n lexer.emit(lunr.QueryLexer.TERM)\n }\n return lunr.QueryLexer.lexBoost\n }\n\n // \"+\" indicates term presence is required\n // checking for length to ensure that only\n // leading \"+\" are considered\n if (char == \"+\" && lexer.width() === 1) {\n lexer.emit(lunr.QueryLexer.PRESENCE)\n return lunr.QueryLexer.lexText\n }\n\n // \"-\" indicates term presence is prohibited\n // checking for length to ensure that only\n // leading \"-\" are considered\n if (char == \"-\" && lexer.width() === 1) {\n lexer.emit(lunr.QueryLexer.PRESENCE)\n return lunr.QueryLexer.lexText\n }\n\n if (char.match(lunr.QueryLexer.termSeparator)) {\n return lunr.QueryLexer.lexTerm\n }\n }\n}\n\nlunr.QueryParser = function (str, query) {\n this.lexer = new lunr.QueryLexer (str)\n this.query = query\n this.currentClause = {}\n this.lexemeIdx = 0\n}\n\nlunr.QueryParser.prototype.parse = function () {\n this.lexer.run()\n this.lexemes = this.lexer.lexemes\n\n var state = lunr.QueryParser.parseClause\n\n while (state) {\n state = state(this)\n }\n\n return this.query\n}\n\nlunr.QueryParser.prototype.peekLexeme = function () {\n return this.lexemes[this.lexemeIdx]\n}\n\nlunr.QueryParser.prototype.consumeLexeme = function () {\n var lexeme = this.peekLexeme()\n this.lexemeIdx += 1\n return lexeme\n}\n\nlunr.QueryParser.prototype.nextClause = function () {\n var completedClause = this.currentClause\n this.query.clause(completedClause)\n this.currentClause = {}\n}\n\nlunr.QueryParser.parseClause = function (parser) {\n var lexeme = parser.peekLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n switch (lexeme.type) {\n case lunr.QueryLexer.PRESENCE:\n return lunr.QueryParser.parsePresence\n case lunr.QueryLexer.FIELD:\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.TERM:\n return lunr.QueryParser.parseTerm\n default:\n var errorMessage = \"expected either a field or a term, found \" + lexeme.type\n\n if (lexeme.str.length >= 1) {\n errorMessage += \" with value '\" + lexeme.str + \"'\"\n }\n\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n}\n\nlunr.QueryParser.parsePresence = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n switch (lexeme.str) {\n case \"-\":\n parser.currentClause.presence = lunr.Query.presence.PROHIBITED\n break\n case \"+\":\n parser.currentClause.presence = lunr.Query.presence.REQUIRED\n break\n default:\n var errorMessage = \"unrecognised presence operator'\" + lexeme.str + \"'\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n var errorMessage = \"expecting term or field, found nothing\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.FIELD:\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.TERM:\n return lunr.QueryParser.parseTerm\n default:\n var errorMessage = \"expecting term or field, found '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseField = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n if (parser.query.allFields.indexOf(lexeme.str) == -1) {\n var possibleFields = parser.query.allFields.map(function (f) { return \"'\" + f + \"'\" }).join(', '),\n errorMessage = \"unrecognised field '\" + lexeme.str + \"', possible fields: \" + possibleFields\n\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n parser.currentClause.fields = [lexeme.str]\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n var errorMessage = \"expecting term, found nothing\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n return lunr.QueryParser.parseTerm\n default:\n var errorMessage = \"expecting term, found '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseTerm = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n parser.currentClause.term = lexeme.str.toLowerCase()\n\n if (lexeme.str.indexOf(\"*\") != -1) {\n parser.currentClause.usePipeline = false\n }\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n parser.nextClause()\n return\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n parser.nextClause()\n return lunr.QueryParser.parseTerm\n case lunr.QueryLexer.FIELD:\n parser.nextClause()\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.EDIT_DISTANCE:\n return lunr.QueryParser.parseEditDistance\n case lunr.QueryLexer.BOOST:\n return lunr.QueryParser.parseBoost\n case lunr.QueryLexer.PRESENCE:\n parser.nextClause()\n return lunr.QueryParser.parsePresence\n default:\n var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseEditDistance = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n var editDistance = parseInt(lexeme.str, 10)\n\n if (isNaN(editDistance)) {\n var errorMessage = \"edit distance must be numeric\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n parser.currentClause.editDistance = editDistance\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n parser.nextClause()\n return\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n parser.nextClause()\n return lunr.QueryParser.parseTerm\n case lunr.QueryLexer.FIELD:\n parser.nextClause()\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.EDIT_DISTANCE:\n return lunr.QueryParser.parseEditDistance\n case lunr.QueryLexer.BOOST:\n return lunr.QueryParser.parseBoost\n case lunr.QueryLexer.PRESENCE:\n parser.nextClause()\n return lunr.QueryParser.parsePresence\n default:\n var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseBoost = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n var boost = parseInt(lexeme.str, 10)\n\n if (isNaN(boost)) {\n var errorMessage = \"boost must be numeric\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n parser.currentClause.boost = boost\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n parser.nextClause()\n return\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n parser.nextClause()\n return lunr.QueryParser.parseTerm\n case lunr.QueryLexer.FIELD:\n parser.nextClause()\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.EDIT_DISTANCE:\n return lunr.QueryParser.parseEditDistance\n case lunr.QueryLexer.BOOST:\n return lunr.QueryParser.parseBoost\n case lunr.QueryLexer.PRESENCE:\n parser.nextClause()\n return lunr.QueryParser.parsePresence\n default:\n var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\n /**\n * export the module via AMD, CommonJS or as a browser global\n * Export code from https://github.com/umdjs/umd/blob/master/returnExports.js\n */\n ;(function (root, factory) {\n if (typeof define === 'function' && define.amd) {\n // AMD. Register as an anonymous module.\n define(factory)\n } else if (typeof exports === 'object') {\n /**\n * Node. Does not work with strict CommonJS, but\n * only CommonJS-like enviroments that support module.exports,\n * like Node.\n */\n module.exports = factory()\n } else {\n // Browser globals (root is window)\n root.lunr = factory()\n }\n }(this, function () {\n /**\n * Just return a value to define the module export.\n * This example returns an object, but the module\n * can return a function as the exported value.\n */\n return lunr\n }))\n})();\n", "/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport lunr from \"lunr\"\n\nimport \"~/polyfills\"\n\nimport { Search, SearchIndexConfig } from \"../../_\"\nimport {\n SearchMessage,\n SearchMessageType\n} from \"../message\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Add support for usage with `iframe-worker` polyfill\n *\n * While `importScripts` is synchronous when executed inside of a web worker,\n * it's not possible to provide a synchronous polyfilled implementation. The\n * cool thing is that awaiting a non-Promise is a noop, so extending the type\n * definition to return a `Promise` shouldn't break anything.\n *\n * @see https://bit.ly/2PjDnXi - GitHub comment\n */\ndeclare global {\n function importScripts(...urls: string[]): Promise | void\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index\n */\nlet index: Search\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch (= import) multi-language support through `lunr-languages`\n *\n * This function automatically imports the stemmers necessary to process the\n * languages, which are defined through the search index configuration.\n *\n * If the worker runs inside of an `iframe` (when using `iframe-worker` as\n * a shim), the base URL for the stemmers to be loaded must be determined by\n * searching for the first `script` element with a `src` attribute, which will\n * contain the contents of this script.\n *\n * @param config - Search index configuration\n *\n * @returns Promise resolving with no result\n */\nasync function setupSearchLanguages(\n config: SearchIndexConfig\n): Promise {\n let base = \"../lunr\"\n\n /* Detect `iframe-worker` and fix base URL */\n if (typeof parent !== \"undefined\" && \"IFrameWorker\" in parent) {\n const worker = document.querySelector(\"script[src]\")!\n const [path] = worker.src.split(\"/worker\")\n\n /* Prefix base with path */\n base = base.replace(\"..\", path)\n }\n\n /* Add scripts for languages */\n const scripts = []\n for (const lang of config.lang) {\n switch (lang) {\n\n /* Add segmenter for Japanese */\n case \"ja\":\n scripts.push(`${base}/tinyseg.js`)\n break\n\n /* Add segmenter for Hindi and Thai */\n case \"hi\":\n case \"th\":\n scripts.push(`${base}/wordcut.js`)\n break\n }\n\n /* Add language support */\n if (lang !== \"en\")\n scripts.push(`${base}/min/lunr.${lang}.min.js`)\n }\n\n /* Add multi-language support */\n if (config.lang.length > 1)\n scripts.push(`${base}/min/lunr.multi.min.js`)\n\n /* Load scripts synchronously */\n if (scripts.length)\n await importScripts(\n `${base}/min/lunr.stemmer.support.min.js`,\n ...scripts\n )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Message handler\n *\n * @param message - Source message\n *\n * @returns Target message\n */\nexport async function handler(\n message: SearchMessage\n): Promise {\n switch (message.type) {\n\n /* Search setup message */\n case SearchMessageType.SETUP:\n await setupSearchLanguages(message.data.config)\n index = new Search(message.data)\n return {\n type: SearchMessageType.READY\n }\n\n /* Search query message */\n case SearchMessageType.QUERY:\n return {\n type: SearchMessageType.RESULT,\n data: index ? index.search(message.data) : { items: [] }\n }\n\n /* All other messages */\n default:\n throw new TypeError(\"Invalid message type\")\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Worker\n * ------------------------------------------------------------------------- */\n\n/* @ts-expect-error - expose Lunr.js in global scope, or stemmers won't work */\nself.lunr = lunr\n\n/* Handle messages */\naddEventListener(\"message\", async ev => {\n postMessage(await handler(ev.data))\n})\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Polyfills\n * ------------------------------------------------------------------------- */\n\n/* Polyfill `Object.entries` */\nif (!Object.entries)\n Object.entries = function (obj: object) {\n const data: [string, string][] = []\n for (const key of Object.keys(obj))\n // @ts-expect-error - ignore property access warning\n data.push([key, obj[key]])\n\n /* Return entries */\n return data\n }\n\n/* Polyfill `Object.values` */\nif (!Object.values)\n Object.values = function (obj: object) {\n const data: string[] = []\n for (const key of Object.keys(obj))\n // @ts-expect-error - ignore property access warning\n data.push(obj[key])\n\n /* Return values */\n return data\n }\n\n/* ------------------------------------------------------------------------- */\n\n/* Polyfills for `Element` */\nif (typeof Element !== \"undefined\") {\n\n /* Polyfill `Element.scrollTo` */\n if (!Element.prototype.scrollTo)\n Element.prototype.scrollTo = function (\n x?: ScrollToOptions | number, y?: number\n ): void {\n if (typeof x === \"object\") {\n this.scrollLeft = x.left!\n this.scrollTop = x.top!\n } else {\n this.scrollLeft = x!\n this.scrollTop = y!\n }\n }\n\n /* Polyfill `Element.replaceWith` */\n if (!Element.prototype.replaceWith)\n Element.prototype.replaceWith = function (\n ...nodes: Array\n ): void {\n const parent = this.parentNode\n if (parent) {\n if (nodes.length === 0)\n parent.removeChild(this)\n\n /* Replace children and create text nodes */\n for (let i = nodes.length - 1; i >= 0; i--) {\n let node = nodes[i]\n if (typeof node !== \"object\")\n node = document.createTextNode(node)\n else if (node.parentNode)\n node.parentNode.removeChild(node)\n\n /* Replace child or insert before previous sibling */\n if (!i)\n parent.replaceChild(node, this)\n else\n parent.insertBefore(this.previousSibling!, node)\n }\n }\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport escapeHTML from \"escape-html\"\n\nimport { SearchIndexDocument } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search document\n */\nexport interface SearchDocument extends SearchIndexDocument {\n parent?: SearchIndexDocument /* Parent article */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search document mapping\n */\nexport type SearchDocumentMap = Map\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search document mapping\n *\n * @param docs - Search index documents\n *\n * @returns Search document map\n */\nexport function setupSearchDocumentMap(\n docs: SearchIndexDocument[]\n): SearchDocumentMap {\n const documents = new Map()\n const parents = new Set()\n for (const doc of docs) {\n const [path, hash] = doc.location.split(\"#\")\n\n /* Extract location, title and tags */\n const location = doc.location\n const title = doc.title\n const tags = doc.tags\n\n /* Escape and cleanup text */\n const text = escapeHTML(doc.text)\n .replace(/\\s+(?=[,.:;!?])/g, \"\")\n .replace(/\\s+/g, \" \")\n\n /* Handle section */\n if (hash) {\n const parent = documents.get(path)!\n\n /* Ignore first section, override article */\n if (!parents.has(parent)) {\n parent.title = doc.title\n parent.text = text\n\n /* Remember that we processed the article */\n parents.add(parent)\n\n /* Add subsequent section */\n } else {\n documents.set(location, {\n location,\n title,\n text,\n parent\n })\n }\n\n /* Add article */\n } else {\n documents.set(location, {\n location,\n title,\n text,\n ...tags && { tags }\n })\n }\n }\n return documents\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport escapeHTML from \"escape-html\"\n\nimport { SearchIndexConfig } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search highlight function\n *\n * @param value - Value\n *\n * @returns Highlighted value\n */\nexport type SearchHighlightFn = (value: string) => string\n\n/**\n * Search highlight factory function\n *\n * @param query - Query value\n *\n * @returns Search highlight function\n */\nexport type SearchHighlightFactoryFn = (query: string) => SearchHighlightFn\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search highlighter\n *\n * @param config - Search index configuration\n * @param escape - Whether to escape HTML\n *\n * @returns Search highlight factory function\n */\nexport function setupSearchHighlighter(\n config: SearchIndexConfig, escape: boolean\n): SearchHighlightFactoryFn {\n const separator = new RegExp(config.separator, \"img\")\n const highlight = (_: unknown, data: string, term: string) => {\n return `${data}${term}`\n }\n\n /* Return factory function */\n return (query: string) => {\n query = query\n .replace(/[\\s*+\\-:~^]+/g, \" \")\n .trim()\n\n /* Create search term match expression */\n const match = new RegExp(`(^|${config.separator})(${\n query\n .replace(/[|\\\\{}()[\\]^$+*?.-]/g, \"\\\\$&\")\n .replace(separator, \"|\")\n })`, \"img\")\n\n /* Highlight string value */\n return value => (\n escape\n ? escapeHTML(value)\n : value\n )\n .replace(match, highlight)\n .replace(/<\\/mark>(\\s+)]*>/img, \"$1\")\n }\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search query clause\n */\nexport interface SearchQueryClause {\n presence: lunr.Query.presence /* Clause presence */\n term: string /* Clause term */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search query terms\n */\nexport type SearchQueryTerms = Record\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Parse a search query for analysis\n *\n * @param value - Query value\n *\n * @returns Search query clauses\n */\nexport function parseSearchQuery(\n value: string\n): SearchQueryClause[] {\n const query = new (lunr as any).Query([\"title\", \"text\"])\n const parser = new (lunr as any).QueryParser(value, query)\n\n /* Parse and return query clauses */\n parser.parse()\n return query.clauses\n}\n\n/**\n * Analyze the search query clauses in regard to the search terms found\n *\n * @param query - Search query clauses\n * @param terms - Search terms\n *\n * @returns Search query terms\n */\nexport function getSearchQueryTerms(\n query: SearchQueryClause[], terms: string[]\n): SearchQueryTerms {\n const clauses = new Set(query)\n\n /* Match query clauses against terms */\n const result: SearchQueryTerms = {}\n for (let t = 0; t < terms.length; t++)\n for (const clause of clauses)\n if (terms[t].startsWith(clause.term)) {\n result[clause.term] = true\n clauses.delete(clause)\n }\n\n /* Annotate unmatched non-stopword query clauses */\n for (const clause of clauses)\n if (lunr.stopWordFilter?.(clause.term as any))\n result[clause.term] = false\n\n /* Return query terms */\n return result\n}\n", "/*\n * Copyright (c) 2016-2022 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n SearchDocument,\n SearchDocumentMap,\n setupSearchDocumentMap\n} from \"../document\"\nimport {\n SearchHighlightFactoryFn,\n setupSearchHighlighter\n} from \"../highlighter\"\nimport { SearchOptions } from \"../options\"\nimport {\n SearchQueryTerms,\n getSearchQueryTerms,\n parseSearchQuery\n} from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index configuration\n */\nexport interface SearchIndexConfig {\n lang: string[] /* Search languages */\n separator: string /* Search separator */\n}\n\n/**\n * Search index document\n */\nexport interface SearchIndexDocument {\n location: string /* Document location */\n title: string /* Document title */\n text: string /* Document text */\n tags?: string[] /* Document tags */\n boost?: number /* Document boost */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index\n *\n * This interfaces describes the format of the `search_index.json` file which\n * is automatically built by the MkDocs search plugin.\n */\nexport interface SearchIndex {\n config: SearchIndexConfig /* Search index configuration */\n docs: SearchIndexDocument[] /* Search index documents */\n options: SearchOptions /* Search options */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search metadata\n */\nexport interface SearchMetadata {\n score: number /* Score (relevance) */\n terms: SearchQueryTerms /* Search query terms */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search result document\n */\nexport type SearchResultDocument = SearchDocument & SearchMetadata\n\n/**\n * Search result item\n */\nexport type SearchResultItem = SearchResultDocument[]\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search result\n */\nexport interface SearchResult {\n items: SearchResultItem[] /* Search result items */\n suggestions?: string[] /* Search suggestions */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Compute the difference of two lists of strings\n *\n * @param a - 1st list of strings\n * @param b - 2nd list of strings\n *\n * @returns Difference\n */\nfunction difference(a: string[], b: string[]): string[] {\n const [x, y] = [new Set(a), new Set(b)]\n return [\n ...new Set([...x].filter(value => !y.has(value)))\n ]\n}\n\n/* ----------------------------------------------------------------------------\n * Class\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index\n */\nexport class Search {\n\n /**\n * Search document mapping\n *\n * A mapping of URLs (including hash fragments) to the actual articles and\n * sections of the documentation. The search document mapping must be created\n * regardless of whether the index was prebuilt or not, as Lunr.js itself\n * only stores the actual index.\n */\n protected documents: SearchDocumentMap\n\n /**\n * Search highlight factory function\n */\n protected highlight: SearchHighlightFactoryFn\n\n /**\n * The underlying Lunr.js search index\n */\n protected index: lunr.Index\n\n /**\n * Search options\n */\n protected options: SearchOptions\n\n /**\n * Create the search integration\n *\n * @param data - Search index\n */\n public constructor({ config, docs, options }: SearchIndex) {\n this.options = options\n\n /* Set up document map and highlighter factory */\n this.documents = setupSearchDocumentMap(docs)\n this.highlight = setupSearchHighlighter(config, false)\n\n /* Set separator for tokenizer */\n lunr.tokenizer.separator = new RegExp(config.separator)\n\n /* Create search index */\n this.index = lunr(function () {\n\n /* Set up multi-language support */\n if (config.lang.length === 1 && config.lang[0] !== \"en\") {\n this.use((lunr as any)[config.lang[0]])\n } else if (config.lang.length > 1) {\n this.use((lunr as any).multiLanguage(...config.lang))\n }\n\n /* Compute functions to be removed from the pipeline */\n const fns = difference([\n \"trimmer\", \"stopWordFilter\", \"stemmer\"\n ], options.pipeline)\n\n /* Remove functions from the pipeline for registered languages */\n for (const lang of config.lang.map(language => (\n language === \"en\" ? lunr : (lunr as any)[language]\n ))) {\n for (const fn of fns) {\n this.pipeline.remove(lang[fn])\n this.searchPipeline.remove(lang[fn])\n }\n }\n\n /* Set up reference */\n this.ref(\"location\")\n\n /* Set up fields */\n this.field(\"title\", { boost: 1e3 })\n this.field(\"text\")\n this.field(\"tags\", { boost: 1e6, extractor: doc => {\n const { tags = [] } = doc as SearchDocument\n return tags.reduce((list, tag) => [\n ...list,\n ...lunr.tokenizer(tag)\n ], [] as lunr.Token[])\n } })\n\n /* Index documents */\n for (const doc of docs)\n this.add(doc, { boost: doc.boost })\n })\n }\n\n /**\n * Search for matching documents\n *\n * The search index which MkDocs provides is divided up into articles, which\n * contain the whole content of the individual pages, and sections, which only\n * contain the contents of the subsections obtained by breaking the individual\n * pages up at `h1` ... `h6`. As there may be many sections on different pages\n * with identical titles (for example within this very project, e.g. \"Usage\"\n * or \"Installation\"), they need to be put into the context of the containing\n * page. For this reason, section results are grouped within their respective\n * articles which are the top-level results that are returned.\n *\n * @param query - Query value\n *\n * @returns Search results\n */\n public search(query: string): SearchResult {\n if (query) {\n try {\n const highlight = this.highlight(query)\n\n /* Parse query to extract clauses for analysis */\n const clauses = parseSearchQuery(query)\n .filter(clause => (\n clause.presence !== lunr.Query.presence.PROHIBITED\n ))\n\n /* Perform search and post-process results */\n const groups = this.index.search(`${query}*`)\n\n /* Apply post-query boosts based on title and search query terms */\n .reduce((item, { ref, score, matchData }) => {\n const document = this.documents.get(ref)\n if (typeof document !== \"undefined\") {\n const { location, title, text, tags, parent } = document\n\n /* Compute and analyze search query terms */\n const terms = getSearchQueryTerms(\n clauses,\n Object.keys(matchData.metadata)\n )\n\n /* Highlight title and text and apply post-query boosts */\n const boost = +!parent + +Object.values(terms).every(t => t)\n item.push({\n location,\n title: highlight(title),\n text: highlight(text),\n ...tags && { tags: tags.map(highlight) },\n score: score * (1 + boost),\n terms\n })\n }\n return item\n }, [])\n\n /* Sort search results again after applying boosts */\n .sort((a, b) => b.score - a.score)\n\n /* Group search results by page */\n .reduce((items, result) => {\n const document = this.documents.get(result.location)\n if (typeof document !== \"undefined\") {\n const ref = \"parent\" in document\n ? document.parent!.location\n : document.location\n items.set(ref, [...items.get(ref) || [], result])\n }\n return items\n }, new Map())\n\n /* Generate search suggestions, if desired */\n let suggestions: string[] | undefined\n if (this.options.suggestions) {\n const titles = this.index.query(builder => {\n for (const clause of clauses)\n builder.term(clause.term, {\n fields: [\"title\"],\n presence: lunr.Query.presence.REQUIRED,\n wildcard: lunr.Query.wildcard.TRAILING\n })\n })\n\n /* Retrieve suggestions for best match */\n suggestions = titles.length\n ? Object.keys(titles[0].matchData.metadata)\n : []\n }\n\n /* Return items and suggestions */\n return {\n items: [...groups.values()],\n ...typeof suggestions !== \"undefined\" && { suggestions }\n }\n\n /* Log errors to console (for now) */\n } catch {\n console.warn(`Invalid query: ${query} \u2013 see https://bit.ly/2s3ChXG`)\n }\n }\n\n /* Return nothing in case of error or empty query */\n return { items: [] }\n }\n}\n"], + "mappings": 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\ No newline at end of file diff --git a/best-practice/index.html b/best-practice/index.html new file mode 100644 index 00000000..f08f0185 --- /dev/null +++ b/best-practice/index.html @@ -0,0 +1,1252 @@ + + + + + + + + + + + + + + + + Best practice for deployments - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Best practice for deployments

    +

    This document guides you through the process of setting up a production-ready Azimuth +deployment following recommended best practice.

    +

    Prerequisites

    +

    Before proceeding with an Azimuth deployment, you should ensure that the target cloud +meets the prerequisites.

    +

    OpenStack projects

    +

    Azimuth is usually deployed on the cloud that is being targeted for workloads. It is +recommended to have three OpenStack projects for a production Azimuth deployment, to contain:

    +
      +
    • A highly-available (HA) production deployment, e.g. azimuth-production
      • +
    • A HA staging deployment, e.g. azimuth-staging
      • +
    • All-in-one (AIO) deployments for validating changes, e.g. azimuth-cicd
      • +
    +

    The production and staging projects must have +sufficient quota for a HA Azimuth +deployment. The required quota in the CI/CD project will depend on the number of +proposed changes that are open concurrently.

    +

    Repository

    +

    Before building your Azimuth configuration, you must first +set up your configuration repository, including initialising +git-crypt for encrypting secrets.

    +

    It is recommended to use a +feature branch workflow +to make changes to your Azimuth configuration in a controlled way.

    +

    Terraform state

    +

    Azimuth deployments use Terraform to manage some parts of +the infrastructure.

    +

    A Terraform remote state store must be configured +in order to persist the Terraform state across playbook executions. If GitLab is being +used for the repository, it is recommended to use +GitLab-managed Terraform state. If not, +S3 is the preferred approach.

    +

    Environments

    +

    An Azimuth configuration repository contains multiple environments, +some of which contain common configuration ("mixin" environments), and some of which +represent a deployment ("concrete" environments).

    +

    For a production deployment of Azimuth, there should be at least two concrete environments +that are deployed from the main branch:

    +
      +
    • production - the Azimuth deployment that is provided to end users
      • +
    • staging - used to validate changes before pushing to production
      • +
    +

    Both of these environments should be +highly-available deployments, +in order to fully test the upgrade process.

    +

    It is recommended to have a +single node aio environment that +also follows the production environment as closely as possible. This can be used for +testing changes to the configuration before they are merged to main.

    +

    In order for validation in the aio and staging environments to be meaningful, the +configuration of these environments should be as similar to production as possible. +To do this, two site-specific mixins should be used:

    +
      +
    • site - contains configuration that is common between aio, staging and production, + e.g. enabled features, available platforms
      • +
    • site-ha - contains configuration for the HA setup that is common between staging + and production
      • +
    +

    The environments would then be layered as follows:

    +
    base --> singlenode --> site --> aio
+base --> ha --> site --> site-ha --> staging
+base --> ha --> site --> site-ha --> production
+
    +

    with only necessary differences configured in each environment, e.g. the ingress base domain, between staging and production.

    +

    Continuous delivery

    +

    A production Azimuth deployment should use continuous delivery, +where changes to the configuration are automatically deployed to the aio and staging +environments. The ansible-playbook command should never be executed manually.

    +

    The recommended approach is to automatically deploy an independent aio environment for each +feature branch, also known as +per-branch dynamic review environments. +This allows changes to be validated before they are merged to main.

    +

    Once a change is merged to main, it will be deployed automatically to the staging environment. +Merging to main will also create a job to deploy to production, but that job will require a +manual trigger. Once the change has been validated in staging, the job to deploy to production +can be actioned.

    +

    A +sample GitLab CI/CD configuration +is provided that implements this workflow for GitLab-hosted repositories.

    +

    Disaster recovery

    +

    Azimuth uses Velero to backup the data that is required to restore an +Azimuth instance in the event of a catastrophic failure. This functionality is not enabled by +default, as it requires credentials for an S3 bucket in which the backups will be stored.

    +

    It is recommended that disaster recovery is enabled for +a production deployment.

    +

    Configuration

    +

    You are now ready to begin adding configuration to your environments. When building an environment +for the first time, it is recommended to follow each documentation page in order, beginning with +the Deployment method.

    + +
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    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
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    + + + + + + + + \ No newline at end of file diff --git a/configuration/01-prerequisites/index.html b/configuration/01-prerequisites/index.html new file mode 100644 index 00000000..02939a36 --- /dev/null +++ b/configuration/01-prerequisites/index.html @@ -0,0 +1,1255 @@ + + + + + + + + + + + + + + + + Prerequisites - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Prerequisites

    +

    In order to deploy Azimuth, a small number of prerequisites must be fulfilled.

    +

    OpenStack cloud

    +

    Currently, Azimuth is able to target OpenStack clouds with the following services enabled:

    +
      +
    • Identity (Keystone)
      • +
    • Image (Glance)
      • +
    • Compute (Nova)
      • +
    • Block storage (Cinder)
      • +
    • Network (Neutron)
        +
      • OVN and OVS/ML2 drivers supported
        • +
      +
      • +
    • Load balancer (Octavia)
        +
      • Amphora and OVN drivers supported
        • +
      +
      • +
    +

    Azimuth has no specific requirement on the version of OpenStack. It is known to work on +on Train release and newer.

    +

    Networking

    +

    OpenStack projects that are used for Azimuth deployments (infra projects) or into which +Azimuth will deploy platforms on behalf of users (workload projects) require access to a +network that is shared as external in Neutron, on which floating IPs can be allocated.

    +

    This network must provide egress to the internet, but does not need to provide ingress +from the internet. This network should be given the Neutron tag portal-external so that +it can be correctly detected by Azimuth, especially in the case where there are multiple +external networks.

    +
    +

    Tip

    +

    Adding the Neutron tag can be done using the OpenStack CLI (usually as admin):

    +
    openstack network set --tag portal-external ${external_network_name}
+
    +
    +

    Machines provisioned as part of an Azimuth deployment, or as part of platforms in workload +projects, will be attached to a private network that is connected to this external network +using a router. These machines must be able to access the OpenStack API for the cloud in +which they are deployed.

    +

    Cinder volumes and Kubernetes

    +

    etcd, the distributed key-value store used by +Kubernetes, is +extremely sensitive to slow disks, +requiring at least 50 sequential write IOPs.

    +

    The recommended OpenStack configuration is to use local disk on the hypervisor for +ephemeral root disks if possible. With this configuration, etcd just about works with +spinning disk.

    +

    If Cinder volumes are used for the root disks of control plane nodes in a Kubernetes +cluster, they must be from an SSD-backed pool.

    +
    +

    Danger

    +

    Network-attached spinning disks will not be fast enough for etcd, resulting in +performance and stability issues for Kubernetes clusters.

    +
    +
    +

    Tip

    +

    If you do not have much SSD capacity, consider having multiple volume types and limiting +access to the SSD-backed volume type to Kubernetes instances only.

    +
    +

    OpenStack project quotas

    +

    A standard high-availability (HA) deployment with a seed node, 3 control plane nodes and +3 worker nodes, requires the following resources:

    +
      +
    • 1 x network, 1 x subnet, 1 x router
      • +
    • 1 x seed node (4 vCPU, 8 GB)
      • +
    • 4 x control plane nodes (4 vCPU, 8 GB)
        +
      • 3 x during normal operation, 4 x during rolling upgrade
        • +
      +
      • +
    • 4 x worker nodes (8 vCPU, 16 GB)
        +
      • 3 x during normal operation, 4 x during rolling upgrade
        • +
      +
      • +
    • 3 x load-balancers
      • +
    • 500GB Cinder storage
      • +
    • 3 x floating IPs
        +
      • One for accessing the seed node
        • +
      • One fo the ingress controller for accessing HTTP services
        • +
      • One for the Zenith SSHD server
        • +
      +
      • +
    +
    +

    Tip

    +

    It is recommended to have a project for each concrete environment that is being +deployed, particularly for high-availability (HA) deployments.

    +
    +

    Application Credential

    +

    You should create an +Application Credential +for the project and save the resulting clouds.yaml as ./environments/<name>/clouds.yaml.

    +
    +

    Warning

    +

    Each concrete environment should have a separate application credential.

    +
    +

    Wildcard DNS

    +

    Zenith exposes HTTP services using random subdomains under a parent domain. This means that +Azimuth and Zenith require control of a entire subdomain, e.g. *.azimuth.example.org.

    +

    The Azimuth UI will be exposed as portal.azimuth.example.org, with Zenith services exposed +as <random subdomain>.azimuth.example.org. Azimuth leverages +Kubernetes Ingress as a +dynamically configurable HTTP proxy to route traffic from these domains to the correct services.

    +

    ingress-nginx is deployed as the ingress controller +and is exposed using a LoadBalancer service in Kubernetes. This results in an Octavia load-balancer +being deployed with a floating IP attached that routes traffic to the ingress controller.

    +

    In order for traffic to be routed correctly for these domains, a wildcard DNS record must exist +for *.azimuth.example.org that points at the floating IP of the load-balancer for the ingress +controller. Azimuth does not manage this DNS record.

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
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    + + + + + + + + \ No newline at end of file diff --git a/configuration/02-deployment-method/index.html b/configuration/02-deployment-method/index.html new file mode 100644 index 00000000..97397c6e --- /dev/null +++ b/configuration/02-deployment-method/index.html @@ -0,0 +1,1148 @@ + + + + + + + + + + + + + + + + Deployment method - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Deployment method

    +

    azimuth-ops supports two deployment methods - singlenode and ha.

    +
    +

    Networking automation

    +

    azimuth-ops will create an internal network, onto which all nodes for the deployment +will be placed. It will also create a router connecting the internal network to the +external network where floating IPs are allocated.

    +
    +

    Single node

    +

    In this deployment method, a single node is provisioned with Terraform +and configured as a K3S cluster. The full Azimuth stack is then deployed +onto this cluster.

    +
    +

    Warning

    +

    This deployment method is only suitable for development or demonstration.

    +
    +

    To use the single node deployment method, use the singlenode environment in your ansible.cfg:

    +
    ansible.cfg
    [defaults]
+inventory = ../base/inventory,../singlenode/inventory,./inventory
+
    +

    The following variables must be set to define the properties of the K3S node:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    # The ID of the external network
+infra_external_network_id: "<network id>"
+
+# The floating IP to which to wildcard DNS entry has been assigned
+infra_fixed_floatingip: "<pre-allocated floating ip>"
+
+# The ID of the flavor to use for the K3S node
+# A flavor with at least 4 CPUs and 16GB RAM is recommended
+infra_flavor_id: "<flavor id>"
+
+# The size of the volume to use for K3S cluster data
+infra_data_volume_size: 100
+
    +

    Highly-available (HA)

    +

    For the HA deployment method, Terraform is also used to provision a single node that is +configured as a K3S cluster. However rather than hosting the Azimuth components, as in +the single node case, this K3S cluster is only configured as a +Cluster API management cluster.

    +

    Cluster API on the K3S cluster is then used to manage a HA cluster, in the same project +and on the same network. The Azimuth stack is then deployed onto this cluster.

    +

    To use the HA deployment method, use the ha environment in your ansible.cfg:

    +
    ansible.cfg
    [defaults]
+inventory = ../base/inventory,../ha/inventory,./inventory
+
    +

    The following variables must be set to define the properties of the K3S node and the +Cluster API managed nodes:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    # The ID of the external network
+infra_external_network_id: "<network id>"
+
+# The ID of the flavor to use for the K3S node
+# A flavor with at least 2 CPUs and 8GB RAM is recommended
+infra_flavor_id: "<flavor id>"
+
+# The name of the flavor to use for control plane nodes
+# A flavor with at least 2 CPUs, 8GB RAM and 100GB root disk is recommended
+capi_cluster_control_plane_flavor: "<flavor name>"
+
+# The name of the flavor to use for worker nodes
+# A flavor with at least 4 CPUs, 16GB RAM and 100GB root disk is recommended
+capi_cluster_worker_flavor: "<flavor name>"
+
+# The number of worker nodes
+capi_cluster_worker_count: 3
+
+# The floating IP to which to wildcard DNS entry has been assigned
+capi_cluster_addons_ingress_load_balancer_ip: "<pre-allocated floating ip>"
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
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    Kubernetes configuration

    +

    The concepts in this section apply to any Kubernetes clusters created using Cluster API, +i.e. the HA cluster in a HA deployment and tenant clusters.

    +

    The variable names differ slightly for the two cases.

    +

    Images

    +

    When building a cluster, Cluster API requires that an image exists in the target cloud +that is accessible to the target project and has the correct version of +kubelet and +kubeadm available.

    +

    Suitable images are uploaded as part of an Azimuth deployment using the +Community images functionality and the IDs are automatically +propagated where they are needed, i.e. for the +Azimuth HA cluster and the +Kubernetes cluster templates.

    +

    If required, e.g. for +custom Kubernetes templates, the +IDs of these images can be referenced using the community_images_image_ids variable:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    kube_1_25_image_id: "{{ community_images_image_ids.kube_1_25 }}"
+kube_1_26_image_id: "{{ community_images_image_ids.kube_1_26 }}"
+kube_1_27_image_id: "{{ community_images_image_ids.kube_1_27 }}"
+
    +

    Docker Hub mirror

    +

    Docker Hub imposes rate limits +on image downloads, which can cause issues for both the Azimuth HA cluster and, in particular, +tenant clusters. This can be worked around by mirroring the images to a local registry.

    +

    If you have a Docker Hub mirror available, this can be configured using the following variables:

    +
    #### For the HA cluster ####
+
+# The ID of the external network to use
+capi_cluster_registry_mirrors:
+  docker.io: ["https://docker-hub-mirror.example.org/v2"]
+
+#### For tenant clusters ####
+
+azimuth_capi_operator_capi_helm_registry_mirrors:
+  docker.io: ["https://docker-hub-mirror.example.org/v2"]
+
    +
    +

    Tip

    +

    If you do not have a Docker Hub mirror available, one can be +deployed as part of an Azimuth deployment. +This mirror will be automatically configured for tenant Kubernetes clusters.

    +

    This mirror cannot be used for the Azimuth HA cluster as it is deployed on that +cluster.

    +
    +

    Multiple external networks

    +

    In the case where multiple external networks are available, you must tell Azimuth which one +to use:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    #### For the HA cluster ####
+
+# The ID of the external network to use
+capi_cluster_external_network_id: "<network id>"
+
+#### For tenant clusters ####
+
+azimuth_capi_operator_external_network_id: "<network id>"
+
    +
    +

    Note

    +

    This does not currently respect the portal-external tag.

    +
    +

    Volume-backed instances

    +

    Flavors with 100GB root disks are recommended for Kubernetes nodes, both for the +Azimuth deployment and for tenant clusters.

    +

    If flavors with large root disks are not available on the target cloud, it is possible +to use volume-backed instances instead.

    +
    +

    etcd and spinning disks

    +

    The configuration options in this section should be used subject to the advice +in the prerequisites about +using Cinder volumes with Kubernetes.

    +
    +

    To configure Kubernetes clusters to use volume-backed instances (i.e. use a Cinder +volume as the root disk), the following variables can be used:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    #### For the HA cluster ####
+
+# The size of the root volumes for Kubernetes nodes
+capi_cluster_root_volume_size: 100
+# The volume type to use for root volumes for Kubernetes nodes
+capi_cluster_root_volume_type: nvme
+
+#### For tenant clusters ####
+
+azimuth_capi_operator_capi_helm_root_volume_size: 100
+azimuth_capi_operator_capi_helm_root_volume_type: nvme
+
    +
    +

    Tip

    +

    You can see the available volume types using the OpenStack CLI:

    +
    openstack volume type list
+
    +
    +

    Load-balancer provider

    +

    If the target cloud uses OVN networking, and the +OVN Octavia provider +is enabled, then Kubernetes clusters should be configured to use the OVN provider for +any load-balancers that are created:

    +

    environments/my-site/inventory/group_vars/all/variables.yml
    #### For the HA cluster ####
+
+# The provider for the API server load-balancer created by Cluster API
+capi_cluster_apiserver_loadbalancer_provider: ovn
+# The provider for load-balancers created for LoadBalancer services
+capi_cluster_addons_openstack_loadbalancer_provider: ovn
+
+#### For tenant clusters ####
+
+# Tenant API servers are load-balanced using Zenith
+# This variable applies to load-balancers created for LoadBalancer services
+azimuth_capi_operator_capi_helm_openstack_loadbalancer_provider: ovn
+
    +
    !!! tip
+
+    You can see the available load-balancer providers using the OpenStack CLI:
+
+    ```sh
+    openstack loadbalancer provider list
+    ```
+
+## Availability zones
+
+By default, an Azimuth installation assumes that there is a single
+[availability zone (AZ)](https://docs.openstack.org/nova/latest/admin/availability-zones.html)
+called `nova` - this is the default set up and common for small-to-medium sized clouds. If
+this is not the case for your target cloud, you may need to set additional variables
+specifying the AZs to use, both for the HA cluster and for tenant Kubernetes clusters.
+
+The default behaviour when scheduling Kubernetes nodes using Cluster API is:
+
+  * *All available AZs* are considered for control plane nodes, and Cluster API will
+    attempt to spread the nodes across multiple AZs, if available.
+  * Worker nodes are scheduled into the `nova` AZ explicitly. If this AZ does not exist,
+    scheduling will fail.
+
+If this default behaviour does not work for your target cloud, the following options are
+available.
+
+!!! note
+
+    Cluster API refers to "failure domains" which, in the OpenStack provider,
+    correspond to availability zones (AZs).
+
+### Use specific availability zones
+
+To specify the availability zones for Kubernetes nodes, the following variables can be used:
+
+```yaml  title="environments/my-site/inventory/group_vars/all/variables.yml"
+#### For the HA cluster ####
+
+# A list of failure domains that should be considered for control plane nodes
+capi_cluster_control_plane_failure_domains: [az1, az2]
+# The failure domain for worker nodes
+capi_cluster_worker_failure_domain: az1
+
+#### For tenant clusters ####
+
+azimuth_capi_operator_capi_helm_control_plane_failure_domains: [az1, az2]
+azimuth_capi_operator_capi_helm_worker_failure_domain: az1
+

    +

    Ignore availability zones

    +

    It is possible to configure Cluster API clusters in such a way that AZs are not specified at all +for Kubernetes nodes. This allows other placement constraints such as +flavor traits +and host aggregate to +be used, and a suitable AZ to be selected by OpenStack.

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    #### For the HA cluster ####
+
+# Indicate that the failure domain should be omitted for control plane nodes
+capi_cluster_control_plane_omit_failure_domain: true
+# Specify no failure domain for worker nodes
+capi_cluster_worker_failure_domain: null
+
+#### For tenant clusters ####
+azimuth_capi_operator_capi_helm_control_plane_omit_failure_domain: true
+azimuth_capi_operator_capi_helm_worker_failure_domain: null
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/04-target-cloud/index.html b/configuration/04-target-cloud/index.html new file mode 100644 index 00000000..1400680f --- /dev/null +++ b/configuration/04-target-cloud/index.html @@ -0,0 +1,1216 @@ + + + + + + + + + + + + + + + + Target OpenStack cloud - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + + + + +
    + + +
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    + + + +
    +
    +
    + + +
    +
    + + + + +

    Target OpenStack cloud

    +

    The main piece of site-specific configuration required by Azimuth is the connection information +for the target OpenStack cloud.

    +

    Azimuth uses the +Keystone Service Catalog +to discover the endpoints for OpenStack services, so only needs to be told where to find the +Keystone v3 endpoint:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_openstack_auth_url: https://openstack.example-cloud.org:5000/v3
+
    +
    +

    Warning

    +

    Make sure to include the trailing /v3, otherwise authentication will fail.

    +
    +

    Azimuth does not currently have support for specifying a custom CA for verifying TLS. If the +target cloud uses a TLS certificate that is not verifiable using the operating-system default +trustroots, TLS verification must be disabled:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_openstack_verify_ssl: false
+
    +

    If you use a domain other than default, you will also need to tell Azimuth the name of the +domain to use when authenticating:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_openstack_domain: my-domain
+
    +

    Cloud name

    +

    Azimuth presents the name of the current cloud in various places in the interface. To configure +this, set the following variables:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    # The machine-readable cloud name
+azimuth_current_cloud_name: my-cloud
+
+# The human-readable name for the cloud
+azimuth_current_cloud_label: My Cloud
+
    +

    Federated authentication

    +

    By default the password authenticator is enabled, which accepts a username and password and swaps +them for an OpenStack token. This requires no additional configuration.

    +

    If the target cloud consumes identities from an external provider via +Keystone federation, +then Azimuth should be configured to obtain an OpenStack token from Keystone using the same flow +as Horizon. To enable this, additional configuration is required for both Azimuth and Keystone +on the target cloud.

    +

    First, the Keystone configuration of the target cloud must be modified to add Azimuth as a +trusted dashboard, +otherwise it will be unable to retrieve a token via the federated flow. When configuring Azimuth as a +trusted dashboard, you must specify the URL that will receive token data, where the portal domain +depends on the ingress configuration:

    +
    Keystone configuration
    [federation]
+trusted_dashboard = https://portal.azimuth.example.org/auth/federated/complete/
+
    +

    In your Azimuth configuration, enable the federated authenticator and tell it the provider and +protocol to use:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_authenticator_federated_enabled: yes
+azimuth_authenticator_federated_provider: "<provider>"
+azimuth_authenticator_federated_protocol: "<protocol>"
+
    +

    This will result in Azimuth using URLs of the following form for the federated authentication flow:

    +
    <auth url>/auth/OS-FEDERATION/identity_providers/<provider>/protocols/<protocol>/websso
+
    +

    The provider and protocol will depend on the Keystone configuration of the target OpenStack cloud.

    +

    To also disable the password authenticator - so that federation is the only supported login - set +the following variable:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_authenticator_password_enabled: no
+
    +

    To change the human-readable names for the authenticators, which are presented in the authentication +method selection form, use the following variables:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_authenticator_password_label: "Username + Password"
+azimuth_authenticator_federated_label: "Federated"
+
    +

    Networking configuration

    +

    Azimuth uses +Neutron resource tags +to discover the networks it should use, and the tags it looks for are portal-internal and +portal-external for the internal and external networks respectively. These tags must be applied +by the cloud operator.

    +

    If it cannot find a tagged internal network, the default behaviour is for Azimuth to create an +internal network to use (and the corresponding router to attach it to the external network).

    +

    The discovery and auto-creation process is described in detail in +Network discovery and auto-creation.

    +

    To disable the auto-creation of internal networks, use the following:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_openstack_create_internal_net: false
+
    +

    The CIDR of the auto-created subnet can also be changed, although it is the same for every project. +For example, you may need to do this if the default CIDR conflicts with resources elsewhere +on your network that machines provisioned by Azimuth need to access:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    # Defaults to 192.168.3.0/24
+azimuth_openstack_internal_net_cidr: 10.0.3.0/24
+
    +

    Monitoring Cloud Capacity

    +

    Azimuth is able to federate cloud metrics from a prometheus running within +your cloud enviroment, such as the one deployed by: +https://github.com/stackhpc/stackhpc-kayobe-config

    +

    Typically we also assume the following exporter is being used to +query the current capacity of your cloud, mostly using data from +OpenStack placement: +https://github.com/stackhpc/os-capacity

    +

    First you need to enable the project metrics and cloud metrics +links within Azimuth by configuring: +

    # Defaults to no
+cloud_metrics_enabled: yes
+

    +

    To make sure Azimuth knows how to access the prometheus running +in your cloud, you need to configure: +

    # hostname needed to match TLS certificate name
+cloud_metrics_prometheus_host: "mycloud.example.com"
+# ip that matches the above hostname
+cloud_metrics_prometheus_ip: "<ip prometheus vip>"
+cloud_metrics_prometheus_port: 9091
+cloud_metrics_prometheus_basic_auth_username: "<basic-auth-username>"
+cloud_metrics_prometheus_basic_auth_password: "<basic-auth-password>"
+

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/05-secret-key/index.html b/configuration/05-secret-key/index.html new file mode 100644 index 00000000..fa9a5765 --- /dev/null +++ b/configuration/05-secret-key/index.html @@ -0,0 +1,1034 @@ + + + + + + + + + + + + + + + + Secret key - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + + + + +
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    + + + +
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    + + + +
    +
    +
    + + +
    +
    + + + + +

    Secret key

    +

    Azimuth requires a secret key that is used primarily for signing cookies:

    +
    environments/my-site/inventory/group_vars/all/secrets.yml
    azimuth_secret_key: "<some secret key>"
+
    +
    +

    Tip

    +

    This key should be a long, random string - at least 32 bytes (256 bits) is recommended. +A suitable key can be generated using openssl rand -hex 32.

    +
    +
    +

    Danger

    +

    This key should be kept secret. If you want to keep it in Git - which is recommended - then +it must be encrypted.

    +
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/06-ingress/index.html b/configuration/06-ingress/index.html new file mode 100644 index 00000000..efc58e1d --- /dev/null +++ b/configuration/06-ingress/index.html @@ -0,0 +1,1232 @@ + + + + + + + + + + + + + + + + Ingress - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + + + + +
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    + + +
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    + + + + +

    Ingress

    +

    As mentioned in the prerequisites, Azimuth and Zenith expect to be given control of an entire +subdomain, e.g. *.azimuth.example.org, and this domain must be assigned to a pre-allocated +floating IP using a wildcard DNS entry.

    +

    To tell azimuth-ops what domain it should use, simply set the following variable:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    ingress_base_domain: azimuth.example.org
+
    +

    This will result in azimuth-ops using portal.azimuth.example.org for the Azimuth portal +interface, and Zenith will use domains of the form <random subdomain>.azimuth.example.org +for user-facing services. Other services deployed by Azimuth, such as +Harbor and the +monitoring and alerting dashboards will +also be allocated subdomains under this domain.

    +

    Transport Layer Security (TLS)

    +

    TLS for Azimuth can be configured in two ways:

    +

    Pre-existing wildcard certificate

    +

    If you have a pre-existing wildcard TLS certificate issued for the ingress base domain, +you can use this to provide TLS for Azimuth and Zenith services.

    +
    +

    Tip

    +

    This is the recommended mechanism for production deployments, despite the lack of +automation, for two reasons:

    +
      +
    • It is not affected by rate limits
      • +
    • Zenith services become available faster as it avoids the overhead of obtaining + a certificate per service
      • +
    +
    +
    +

    Warning

    +

    It is your responsibility to renew the wildcard certificate before it expires.

    +

    The Azimuth monitoring will produce alerts when the certificate +is approaching its expiry date.

    +
    +

    To configure a pre-existing wildcard certificate for ingress, just create the following +files in your environment:

    +
    +
    environments/my-site/tls/tls.crt
    +
    Must contain the full certificate chain, with the most specific certificate at the + top (e.g. the wildcard certificate), any intermediate certificates and the root CA at + the bottom.
    +
    environments/my-site/tls/tls.key
    +
    The corresponding private key for the wildcard certificate.
    +
    +
    +

    Danger

    +

    The TLS key should be kept secret. If you want to keep it in Git - which is recommended - +then it must be encrypted.

    +
    +

    When these files exist in an environment, azimuth-ops will automatically pick them up +and use them.

    +
    +

    Info

    +

    In the future, support for a wildcard certificate managed by +cert-manager may be implemented. However this will require +the use of a +supported DNS provider +in order to fulfil the DNS01 challenge (wildcard certificates cannot be issued for an +HTTP01 challenge).

    +
    +

    Automated with cert-manager

    +

    azimuth-ops is able to configure Ingress resources for Azimuth and Zenith services so +that their TLS certificates are managed automatically using cert-manager.

    +

    In this configuration, a certificate is issued for each separate subdomain by an +ACME provider +using the +HTTP-01 challenge type.

    +

    By default, cert-manager is enabled and this mechanism will be used to issue TLS certificates +for Azimuth and Zenith services with no further configuration. The default ACME service is +Let's Encrypt, which issues certificates that are trusted by +all major operating systems and browsers.

    +
    +

    Let's Encrypt rate limits

    +

    Let's Encrypt imposes rate limits to ensure +fair usage. At the time of writing, the number of new certificates that can be issued +is 50 per week per registed domain. The "registered domain" is the part of the domain +that is purchased from the registrar so, for an Azimuth deployment with an ingress base +domain of *.azimuth.example.org, the Let's Encrypt rate limit is imposed on example.org.

    +

    If there are a large number of Zenith services and the rate limit is reached, cert-manager +will not be able to obtain a certificate and Azimuth and Zenith services will never become +available.

    +
    +

    Using another ACME provider

    +

    It is possible to configure the issuer to use a different ACME server, e.g. if your institution +has an ACME server that issues trusted certificates:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    # The name of the issuer
+certmanager_acmehttp01issuer_name: example-acme
+# The URL of the ACME endpoint
+certmanager_acmehttp01issuer_server: https://acme.example.org
+
    +

    If ACME server requires External Account Binding (EAB) it needs to be enabled and credentials +added to encrypted secrets file:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    # Indicates whether an External Account Binding (EAB) is required
+certmanager_acmehttp01issuer_eab_required: yes
+
    +
    environments/my-site/inventory/group_vars/all/secrets.yml
    # The key ID of the EAB
+certmanager_acmehttp01issuer_eab_kid: "EXAMPLE_EAB_KID"
+# The HMAC key of the EAB
+certmanager_acmehttp01issuer_eab_key: "EXAMPLE_EAB_KEY"
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/07-platform-identity/index.html b/configuration/07-platform-identity/index.html new file mode 100644 index 00000000..f57730dd --- /dev/null +++ b/configuration/07-platform-identity/index.html @@ -0,0 +1,1166 @@ + + + + + + + + + + + + + + + + Platform Identity - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + + + + +
    + + +
    + +
    + + + + + + +
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    +
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    + + + +
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    + + +
    +
    + + + + +

    Platform Identity

    +

    In Azimuth, there are two kinds of users:

    +
      +
    • Platform Users who are able to access one or more platforms deployed by Azimuth.
      • +
    • Platform Admins who are able to sign in to Azimuth, manage the deployed + platforms in a tenancy and administer access to those platforms.
      • +
    +

    Only Platform Admins need to have an OpenStack account. Each Azimuth tenancy has an +associated Identity Realm that provides the Platform Users for that tenancy and is +administered by the Platform Admins for the tenancy. This allow access to platforms to be +granted for users that do not have an OpenStack account.

    +

    This separation of Platform Users from OpenStack accounts opens up a wide range of use cases +that are not possible when platforms can only be accessed by users with OpenStack accounts.

    +

    Example use case

    +

    Imagine that a project with quota on an OpenStack cloud wishes to host an open +workshop using Jupyter notebooks for teaching. In this case, they definitely don't want +to grant every workshop attendee access to OpenStack, as these users may not be trusted.

    +

    Using Azimuth, a trusted project member (i.e. a Project Admin) can deploy a JupyterHub +in Azimuth and create users in their Identity Realm for the workshop attendees. +These users can be granted access to JupyterHub for the duration of the workshop, and +at the end of the workshop their access can be revoked.

    +

    Use of Keycloak

    +

    In order to accomplish this, every Azimuth installation includes an instance of +the Keycloak open-source identity management platform. +Each Azimuth tenancy (i.e. OpenStack project) has an associated +realm +in this Keycloak instance that is used to manage access to platforms deployed +in that tenancy. The realm provides authentication and authorization for +the Zenith services associated with the platforms in the tenancy using +OpenID Connect (OIDC).

    +

    Each realm is created with two groups - admins and platform-users. Users who are +in the platform-users group for a realm are granted access to all platforms deployed +in the corresponding Azimuth tenancy. Users who are in the admins group are granted +admin status for the realm, meaning they can perform actions in the Keycloak admin +console such as:

    + +

    The Keycloak realms created by Azimuth are configured with Azimuth as an identity +provider, so that Platform Admins who belong to a tenancy in Azimuth can sign in to +the corresponding realm using the Azimuth identity provider. Platform Admins who sign +in to a realm via Azimuth are automatically placed in the admins and platform-users +groups described above.

    +

    When a platform is deployed in an Azimuth tenancy a group is created in the corresponding +identity realm, and access to the platform is controlled by membership of this group. Each +Zenith service for the platform has a child group under the platform group that can be +used to grant access to a single service within a platform.

    +

    For example, the standard Linux Workstation platform (see +Cluster-as-a-Service (CaaS)) exposes two Zenith services - +"Web Console" and "Monitoring". If an instance of this platform is deployed with the name +my-workstation, then access to the "Web Console" service can be granted by either:

    +
      +
    • Adding the user to the platform-users group.
      + This will also grant the user access to all other platforms in the tenancy.
      • +
    • Adding the user to the caas-my-workstation group.
      + This will grant the user access to the "Web Console" and "Monitoring" services.
      • +
    • Adding the user to the caas-my-workstation/webconsole group.
      + This will grant the user access to the "Web Console" service only.
      • +
    +

    Keycloak admin password

    +

    The only required configuration for platform identity is to set the admin password for Keycloak:

    +
    environments/my-site/inventory/group_vars/all/secrets.yml
    keycloak_admin_password: "<secure password>"
+
    +
    +

    Danger

    +

    This password should be kept secret. If you want to keep the password in Git - which is +recommended - then it must be encrypted.

    +
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/08-zenith/index.html b/configuration/08-zenith/index.html new file mode 100644 index 00000000..9b7a5b0d --- /dev/null +++ b/configuration/08-zenith/index.html @@ -0,0 +1,1093 @@ + + + + + + + + + + + + + + + + Zenith Application Proxy - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
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    + + + + +
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    +
    + + + +
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    + + + +
    +
    +
    + + +
    +
    + + + + +

    Zenith Application Proxy

    +

    The Zenith application proxy is enabled by default in the reference configuration. To disable +it, just set:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_apps_enabled: no
+
    +

    The only piece of configuration that is required for Zenith is a secret key that is used +to sign and verify the single-use tokens issued by the registrar (see the Zenith architecture +document for details):

    +
    environments/my-site/inventory/group_vars/all/secrets.yml
    zenith_registrar_subdomain_token_signing_key: "<some secret key>"
+
    +
    +

    Tip

    +

    This key should be a long, random string - at least 32 bytes (256 bits) is recommended. +A suitable key can be generated using openssl rand -hex 32.

    +
    +
    +

    Danger

    +

    This key should be kept secret. If you want to keep it in Git - which is recommended - then +it must be encrypted.

    +
    +

    SSHD port number

    +

    By default, the Zenith SSHD server will use port 22 on a dedicated IP address for a HA +deployment and port 2222 on the pre-allocated floating IP for a single node deployment +(port 22 is used for regular SSH to configure the node).

    +

    This can be changed using the following variable, if required:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    zenith_sshd_service_port: 22222
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/09-community-images/index.html b/configuration/09-community-images/index.html new file mode 100644 index 00000000..cd0c02e5 --- /dev/null +++ b/configuration/09-community-images/index.html @@ -0,0 +1,1191 @@ + + + + + + + + + + + + + + + + Community images - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + + + + +
    + + +
    + +
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    + + + +
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    + + + + +
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    +
    + + + +
    +
    +
    + + + +
    +
    +
    + + +
    +
    + + + + +

    Community images

    +

    Azimuth requires a number of specialised images to be available on the target cloud for +Cluster-as-a-Service appliances and Kubernetes clusters.

    +

    Images for Kubernetes and CaaS appliances, with the exception of Slurm, are built using +Packer from the definitions in the +azimuth-images repository. For Kubernetes, +we make use of the recipes from the upstream +Cluster API image-builder.

    +

    Each release of azimuth-images has +an associated manifest that describes the images in the release and where to download them +from, along with some additional metadata. The Azimuth deployment playbooks are able to +consume these manifests.

    +

    Images for the Slurm cluster appliance are built using Packer from definitions in the +slurm-image-builder respository, with builds uploaded +here.

    +

    azimuth-ops is able to download, convert (if required) and then create +Glance images on the target cloud from these sources. +Images are uploaded as +community images +meaning they are accessible by all projects in the target cloud, but not included by default +when listing images in Horizon, the OpenStack CLI or the OpenStack API.

    +

    By default, azimuth-ops uploads the set of images that are needed to support Azimuth's +functionality and auto-wires them into the correct places for the K3S node, the HA Kubernetes +cluster, the default Kubernetes templates and the default Cluster-as-a-Service appliances.

    +

    Image properties

    +

    Properties can be set on the uploaded images, if required. The properties are given as +strings of the form key=value in the following variable:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    community_images_custom_properties:
+  - 'prop1=value1'
+  - 'prop2=value2'
+
    +

    Image conversion

    +

    Images can be converted from a "source" format to a "target" format for the target cloud. The +majority of images available for download are in qcow2 format, and this is the format in +which images built from azimuth-images are distributed. However your cloud may require +images to be uploaded in a different format, e.g. raw or vmdk.

    +

    To specify the target format for your cloud, just set the following (the default is qcow2):

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    community_images_disk_format: raw
+
    +

    When this differs from the source format for an image, azimuth-ops will convert the image +using qemu-img convert before uploading it to the +target cloud.

    +

    Disabling community images

    +

    It is possible to prevent azimuth-ops from uploading any images, even the default ones, +by setting the following:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    community_images: {}
+
    +
    +

    Warning

    +

    If community images are disabled you will need to ensure suitable images are +uploaded via another mechanism, and the correct variables populated with the +image IDs in your Azimuth configuration. See the +azimuth-ops roles +for more details.

    +
    +

    Custom images

    +

    If you want to upload custom images as part of your Azimuth installation, for example to support +a custom Cluster-as-a-Service appliance or for older Kubernetes versions, you can use the +community_images_extra variable:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    community_images_extra:
+  # Key, used to refer to the image ID
+  debian_11:
+    # The name of the image to create on the target cloud
+    name: debian-11-generic-amd64-20220711-1073
+    # The URL of the source image
+    source_url: https://cloud.debian.org/images/cloud/bullseye/20220711-1073/debian-11-generic-amd64-20220711-1073.qcow2
+    # The disk format of the source image
+    source_disk_format: qcow2
+    # The container format of the source image
+    container_format: bare
+
    +

    The ID of this image can then be referred to elsewhere in your Azimuth configuration using:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    my_custom_caas_appliance_image: "{{ community_images_image_ids.debian_11 }}"
+
    +
    +

    Warning

    +

    It is assumed that the name in a community image specification refers to a unique image. +azimuth-ops will only download, convert and upload images to the target cloud for names +that do not already exist.

    +

    For this reason, it is recommended to include a timestamp or build reference in the image +name in order to identify different images that serve the same purpose (e.g. different builds +of the same pipeline).

    +
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/10-kubernetes-clusters/index.html b/configuration/10-kubernetes-clusters/index.html new file mode 100644 index 00000000..ee4c0de6 --- /dev/null +++ b/configuration/10-kubernetes-clusters/index.html @@ -0,0 +1,1333 @@ + + + + + + + + + + + + + + + + Kubernetes clusters - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + + + + +
    + + +
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    + + +
    +
    + + + + +

    Kubernetes clusters

    +

    Kubernetes support in Azimuth is implemented using Cluster API +with the OpenStack provider. +Support for cluster addons is provided by the +Cluster API addon provider, which +provides functionality for installing Helm charts and additional manifests.

    +

    Azimuth provides an opinionated interface on top of Cluster API by implementing +its own Kubernetes operator. +This operator exposes two +custom resources +which are used by the Azimuth API to manage Kubernetes clusters:

    +
    +
    clustertemplates.azimuth.stackhpc.com
    +
    A cluster template represents a "type" of Kubernetes cluster. In particular, this is used + to provide different Kubernetes versions, but can also be used to provide advanced + options, e.g. networking configuration or additional addons that are installed by default on + the cluster. Cluster templates can be deprecated, e.g. when a new Kubernetes version is released, + resulting in a warning being shown to the user that they should upgrade.
    +
    clusters.azimuth.stackhpc.com
    +
    A cluster represents the user-facing definition of a Kubernetes cluster. It references a + template, from which the Kubernetes version and other advanced options are taken, but allows + the user to specify one or more node groups and toggle a few simple options such as + auto-healing and whether the monitoring stack is deployed on the cluster.
    +
    +

    For each Cluster, the operator manages a release of the +openstack-cluster Helm chart. +The Helm release in turn manages Cluster API resources for the cluster, including addons.

    +

    To get the values for the release, the operator first derives some values from the Cluster +object which are merged with the values defined in the referenced template. The result of +that merge is then merged with any global configuration that has been specified before being +passed to Helm.

    +

    Disabling Kubernetes

    +

    Kubernetes support is enabled by default in the reference configuration. To disable it, just +set:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_kubernetes_enabled: no
+
    +

    Kubernetes configuration

    +

    Kubernetes configuration is very similar for both the +Azimuth HA cluster and tenant Kubernetes +clusters, since both are deployed using Cluster API. The +Kubernetes configuration section discusses the possible options +for networking, volumes and availability zones in detail.

    +

    Cluster templates

    +

    azimuth-ops is able to manage the available Kubernetes cluster templates using the +variable azimuth_capi_operator_cluster_templates. This variable is a dictionary that +maps cluster template names to their specifications, and represents the current (i.e. +not deprecated) cluster templates. azimuth-ops will not remove cluster templates, +but it will mark any templates that are not present in this variable as deprecated.

    +

    By default, azimuth-ops will ensure a cluster template is present for the latest +patch version of each Kubernetes release that is currently maintained. These templates +are configured so that Kubernetes nodes will go onto the Azimuth portal-internal +network for the project in which the cluster is being deployed.

    +

    Disabling the default templates

    +

    To disable the default templates, just set the following:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_capi_operator_cluster_templates_default: {}
+
    +

    Custom cluster templates

    +

    If you want to include custom cluster templates in addition to the default templates, +e.g. for advanced networking configurations, you can specify them using the variable +azimuth_capi_operator_cluster_templates_extra.

    +

    For example, the following demonstrates how to configure a template where the cluster +worker nodes have two networks attached - the control plane nodes and workers are all +attached to the Azimuth internal network but the workers are attached to an additional +SR-IOV capable network:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_capi_operator_cluster_templates_extra:
+  # The index in the dict is the template name
+  kube-1-24-2-multinet:
+    # A human-readable label for the template
+    label: v1.24.2 / multinet
+    # A brief description of the template
+    description: >-
+      Kubernetes 1.24.2 with HA control plane and high-performance networking.
+    # Values for the openstack-cluster Helm chart
+    values:
+      # Specify the image and version for the cluster
+      # These are the only required values
+      kubernetesVersion: 1.24.2
+      machineImageId: "{{ community_images_image_ids.kube_1_24 }}"
+      # Use the portal-internal network as the main cluster network
+      clusterNetworking:
+        internalNetwork:
+          networkFilter:
+            tags: portal-internal
+      # Configure an extra SR-IOV port on worker nodes using an SR-IOV capable network
+      nodeGroupDefaults:
+        machineNetworking:
+          ports:
+            - {}
+            - network:
+                tags: sriov-vlan
+              securityGroups: []
+              vnicType: direct
+
    +

    Harbor registry

    +

    azimuth-ops is able to manage a Harbor registry as part of an Azimuth +installation. This registry is primarily used as a +proxy cache +to limit the number of times that images that are pulled directly from the internet.

    +

    If enabled, the Harbor registry will be made available at registry.<ingress base domain>, +e.g. registry.azimuth.example.org and will be configured for tenant clusters by default.

    +

    By default, a single proxy cache is defined for Docker Hub in order +to mitigate rate limiting.

    +
    +

    Tip

    +

    If you have a Docker Hub mirror available, you can +configure Kubernetes clusters to use it +instead of deploying Harbor.

    +

    In this case, you should disable Harbor by setting:

    +
    harbor_enabled: no
+
    +
    +

    Harbor is enabled by default, and requires two secrets to be set:

    +
    environments/my-site/inventory/group_vars/all/secrets.yml
    # The admin password for Harbor
+harbor_admin_password: "<secure password>"
+
+# The secret key for Harbor
+# This MUST be exactly 16 alphanumeric characters
+harbor_secret_key: "<secure secret key>"
+
    +
    +

    Danger

    +

    These values should be kept secret. If you want to keep them in Git - which is recommended - +then they must be encrypted.

    +
    +

    Disabling Harbor

    +

    The Harbor registry can be disabled entirely:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    harbor_enabled: no
+
+### Additional proxy caches
+
+By default, only Docker Hub has a proxy cache. Additional proxy caches can be configured
+for other registries, if desired:
+
+```yaml  title="environments/my-site/inventory/group_vars/all/variables.yml"
+harbor_proxy_cache_extra_projects:
+  quay.io:
+    # The name of the project in Harbor
+    name: quay-public
+
+    # The type of the upstream registry, e.g.:
+    #   aws-ecr
+    #   azure-acr
+    #   docker-hub
+    #   docker-registry
+    #   gitlab
+    #   google-gcr
+    #   harbor
+    #   jfrog-artifactory
+    #   quay-io
+    type: quay-io
+
+    # The endpoint URL for the registry
+    url: https://quay.io
+
    +
    +

    Warning

    +

    Defining authentication for the upstream registries is not currently supported, +i.e. only public repositories can be proxied.

    +
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/11-kubernetes-apps/index.html b/configuration/11-kubernetes-apps/index.html new file mode 100644 index 00000000..daf05187 --- /dev/null +++ b/configuration/11-kubernetes-apps/index.html @@ -0,0 +1,1246 @@ + + + + + + + + + + + + + + + + Kubernetes apps - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + + + + +
    + + +
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    + + +
    +
    + + + + +

    Kubernetes apps

    +

    Azimuth allows operators to provide a catalog of applications (apps) that users are able to +install onto their Kubernetes clusters via the Azimuth user interface. Multiple apps can +be installed on the same Kubernetes cluster, and each app gets its own namespace.

    +

    A Kubernetes app in Azimuth essentially consists of a +Helm chart. Azimuth manages specially annotated instances +of the HelmRelease resource from the +Cluster API addon provider to install +and upgrade apps on the target cluster. These apps can be integrated with Zenith +to expose services to the user without requiring the use of +LoadBalancer services +or Kubernetes ingress.

    +

    The available apps and the available versions of those apps are determined by instances of a +custom resource +provided by the +Azimuth Kubernetes operator - +apptemplates.azimuth.stackhpc.com - which references a chart in a +Helm chart repository. Azimuth uses the +chart metadata to generate the user +interface for the app template, and the values schema +for the chart to generate a form for collecting input from the user.

    +

    Azimuth also renders the output of the NOTES.txt +file in the user interface, so this can be used to describe how to consume the application.

    +
    +

    Warning

    +

    If the chart does not have a values schema, the generated form will be blank and the chart +will be deployed with the default values.

    +
    +
    +

    Tip

    +

    In addition, a file called azimuth-ui.schema.yaml can be included to apply some small +customisations to the generated form, like selecting different controls. See the +azimuth-charts for examples.

    +
    +

    Default app templates

    +

    Azimuth comes with the following app templates enabled by default:

    +
    +
    jupyterhub
    +
    Allows the user to deploy JupyterHub on their clusters. JupyterHub + provides a multi-user environment for using Jupyter notebooks where + each user gets their own dynamically-provisioned notebook server and storage. The Jupyter + notebook interface is exposed using Zenith.
    +
    daskhub
    +
    A JupyterHub instance with Dask integration. Dask is a library that aims + to simplify the process of scaling data-intensive Python applications, such as those using + Numpy or pandas. DaskHub installs + Dask Gateway alongside JupyterHub and configures them so that + they integrate seamlessly. This allows users to easily create Dask clusters in their notebooks + that scale out by creating pods on the underlying Kubernetes cluster. As with jupyterhub + above, the notebook interface is exposed using Zenith.
    +
    kubeflow
    +
    Allows users to deploy the Kubeflow machine learning toolkit + on their clusters. Kubeflow provides an interface for easily accessing best-of-breed machine + learning systems using Jupyter notebooks and TensorFlow.
    +
    +

    These can be disabled by setting the following variables:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_capi_operator_app_templates_jupyterhub_enabled: false
+azimuth_capi_operator_app_templates_daskhub_enabled: false
+azimuth_capi_operator_app_templates_kubeflow_enabled: false
+
    +

    Custom app templates

    +

    If you have Helm charts that you want to make available as apps, you can define them as follows:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_capi_operator_app_templates_extra:
+  # The key is the name of the app template
+  my-custom-app:
+    # This is the only required field, and determines the chart that is used
+    chart:
+      # The chart repository containing the chart
+      repo: https://my.company.org/helm-charts
+      # The name of the chart that the template is for
+      name: my-custom-app
+
    +

    By default, Azimuth will use the last 5 stable versions of the chart (i.e. versions without a +prerelease part, see semver.org) and the name, icon and description +from the Chart.yaml file in the chart +to build the user interface. A chart annotation is also supported to define the human-readable +label:

    +
    my-chart/Chart.yaml
    annotations:
+  azimuth.stackhpc.com/label: My Custom App
+
    +

    This behaviour can be customised for each app template using the following optional fields:

    +
    +
    label
    +
    The human-readable label for the app template, instead of the annotation from Chart.yaml.
    +
    logo
    +
    The URL of the logo for the app template, instead of the icon from Chart.yaml.
    +
    description
    +
    A short description of the app template, instead of the description from Chart.yaml.
    +
    versionRange
    +
    Default: >=0.0.0 (stable versions only).
    + The range of chart versions to consider.
    + Must be a comma-separated list of constraints, where each constraint is an operator followed + by a SemVer version. The supported operators are ==, !=, >, >=, + <and <=.
    + Prerelease versions are only considered if the lower bound includes a prerelease part. + If no lower bound is given, an implicit lower bound of >=0.0.0 is used.
    + Some examples of valid ranges: +
    +
      +
    • >=0.0.0-0 - all versions, including prerelease versions like 1.0.0-alpha.1
      • +
    • + <2.0.0 - all stable versions matching 0.X.Y and 1.X.Y (implicit lower bound) +
      • +
    • + >=1.0.0,<3.0.0,!=2.1.5 - all stable versions matching 1.X.Y or + 2.X.Y except 2.1.5 (useful for excluding specific versions with + known issues) +
    +
    +
    keepVersions
    +
    Default: 5.
    + The number of versions to keep.
    + This is used to limit the size of the AppTemplate resource, because etcd has limits on the + maximum size of objects (usually approx. 1MB). This will need to be smaller if the chart + has a large values schema.
    +
    syncFrequency
    +
    Default: 86400 (24 hours).
    + The number of seconds to wait before checking for new versions of the chart.
    +
    defaultValues
    +
    Default: {}.
    + Default values for deployments of the app, on top of the chart defaults.
    +
    +

    Zenith integration

    +

    When Zenith is enabled, every Kubernetes cluster created by Azimuth has an +instance of the Zenith operator watching +it. This operator makes two Kubernetes custom resources available that can be used to expose a +Kubernetes service to users +without using type: NodePort, type: LoadBalancer or +Kubernetes ingress:

    +
    +
    reservations.zenith.stackhpc.com
    +
    Represents the reservation of a Zenith domain, and results in the generation of a + Kubernetes secret containing an SSH keypair associated with the allocated domain.
    +
    clients.zenith.stackhpc.com
    +
    Defines a Zenith client, pointing at a Zenith reservation and upstream Kubernetes service.
    +
    +

    In addition, services can benefit from the project-level authentication and authorization +that is performed by Zenith at it's proxy to prevent unauthorised users from accessing the +service. The Zenith services associated with an app are monitored and made available in the +Azimuth user interface, making the apps easy to use.

    +

    Azimuth supports the following annotations on the reservation to determine how the service +is rendered in the user interface:

    +
    annotations:
+  azimuth.stackhpc.com/service-label: "My Fancy Service"
+  azimuth.stackhpc.com/service-icon-url: https://my.company.org/images/my-fancy-service-icon.png
+
    +

    It is possible to add Zenith integration to an existing chart by creating a new parent chart +with the existing chart as a dependency. +You can define templates for the Zenith resources in the parent chart, pointing at services +created by the child chart.

    +

    This is the approach taken by the azimuth-charts +that provide the default jupyterhub and daskhub apps.

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/12-caas/index.html b/configuration/12-caas/index.html new file mode 100644 index 00000000..f4c03da3 --- /dev/null +++ b/configuration/12-caas/index.html @@ -0,0 +1,1257 @@ + + + + + + + + + + + + + + + + Cluster-as-a-Service (CaaS) - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + + + + +
    + + +
    + +
    + + + + + + +
    +
    + + + +
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    + + + + +
    +
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    + + + +
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    +
    + + + +
    +
    +
    + + +
    +
    + + + + +

    Cluster-as-a-Service (CaaS)

    +

    Cluster-as-a-Service (CaaS) in Azimuth allows self-service platforms to be provided to +users that are deployed and configured using a combination of Ansible, +Terraform and Packer, stored in +a git repository.

    +

    CaaS support in Azimuth is implemented by the +Azimuth CaaS operator. +The operator executes Ansible playbooks using +ansible-runner in response +to Azimuth creating and modifying instances of the +custom resources +that it exposes:

    +
    +
    clustertypes.caas.azimuth.stackhpc.com
    +
    A cluster type represents an available appliance, e.g. "workstation" or "Slurm cluster". + This CRD defines the git repository, version and playbook that will be used to deploy + clusters of the specified type, along with metadata for generating the UI and any + global variable such as image UUIDs.
    +
    clusters.caas.azimuth.stackhpc.com
    +
    A cluster represents the combination of a cluster type with values collected from the user. + The CaaS operator tracks the status of the ansible-runner executions for the cluster and + reports it on the CRD for Azimuth to consume.
    +
    +

    Disabling CaaS

    +

    CaaS support is enabled by default in the reference configuration. To disable it, just +set:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_clusters_enabled: no
+
    +

    Removing legacy AWX components

    +

    If you are migrating from an installation using the previous AWX implementation then +Azimuth itself will be reconfigured to use the CaaS CRD, but by default the AWX +installation will be left untouched in order to allow any legacy apps to be cleaned up.

    +

    To remove AWX components, an additional variable must be set when the provision playbook +is executed:

    +
    ansible-playbook stackhpc.azimuth_ops.provision -e awx_purge=yes
+
    +

    StackHPC Appliances

    +

    By default, three appliances maintained by StackHPC are made available - the +Slurm appliance, the +Linux Workstation appliance and the +repo2docker appliance.

    +

    Slurm appliance

    +

    The Slurm appliance allows users to deploy Slurm +clusters for running batch workloads. The clusters include the Open OnDemand +web interface and a monitoring stack with web dashboards, both of which are exposed using +Zenith.

    +

    To disable the Slurm appliance, use the following:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_caas_stackhpc_slurm_appliance_enabled: no
+
    +

    The Slurm appliance requires the following configuration:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    # The name of a flavor to use for Slurm login nodes
+#   A flavor with at least 2 CPUs and 4GB RAM should be used
+azimuth_caas_stackhpc_slurm_appliance_login_flavor_name: "<flavor name>"
+
+# The name of a flavor to use for Slurm control nodes
+#   A flavor with at least 2 CPUs and 4GB RAM should be used
+azimuth_caas_stackhpc_slurm_appliance_control_flavor_name: "<flavor name>"
+
    +

    Linux Workstation appliance

    +

    The Linux Workstation appliance allows users to provision a workstation that is accessible +via a web-browser using Apache Guacamole. Guacamole provides +a web-based virtual desktop and a console, and is exposed using Zenith. A simple monitoring +stack is also available, exposed via Zenith.

    +

    To disable the Linux Workstation appliance, use the following:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_caas_stackhpc_workstation_enabled: no
+
    +

    repo2docker appliance

    +

    The repo2docker appliance allows users to deploy a Jupyter Notebook +server, exposed via Zenith, from a repo2docker +compliant repository. A simple monitoring stack is also available, exposed via Zenith.

    +

    To disable the repo2docker appliance, use the following:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_caas_stackhpc_repo2docker_enabled: no
+
    +

    Custom appliances

    +

    It is possible to make custom appliances available in the Azimuth interface for users to deploy. +For more information on building a CaaS-compatible appliance, please see the +sample appliance.

    +

    Custom appliances can be easily specified in your Azimuth configuration. For example, +the following will configure the sample appliance as an available cluster type:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    azimuth_caas_cluster_templates_overrides:
+  sample-appliance:
+    # The git URL of the appliance
+    gitUrl: https://github.com/stackhpc/azimuth-sample-appliance.git
+    # The branch, tag or commit id to use
+    # For production, it is recommended to use a fixed tag or commit ID
+    gitVersion: main
+    # The name of the playbook to use
+    playbook: sample-appliance.yml
+    # The URL of the metadata file
+    uiMetaUrl: https://raw.githubusercontent.com/stackhpc/azimuth-sample-appliance/main/ui-meta/sample-appliance.yaml
+    # Dict of extra variables for the appliance
+    extraVars:
+      # Use the ID of an Ubuntu 20.04 image that we asked azimuth-ops to upload
+      cluster_image: "{{ community_images_image_ids.ubuntu_2004_20220712 }}"
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/13-monitoring/index.html b/configuration/13-monitoring/index.html new file mode 100644 index 00000000..41979dea --- /dev/null +++ b/configuration/13-monitoring/index.html @@ -0,0 +1,1190 @@ + + + + + + + + + + + + + + + + Monitoring and alerting - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
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    + + + + +

    Monitoring and alerting

    +

    Azimuth installations come with a monitoring and alerting stack that uses +Prometheus to collect metrics on various components of the Kubernetes +cluster and the Azimuth components running on it, +Alertmanager to produce alerts +based on those metrics and Grafana to visualise the metrics using a +curated set of dashboards.

    +

    HA installations also include a log aggregation stack using Loki +and Promtail that collects logs +from all the pods running on the cluster and the systemd services on each cluster node. +These logs are available in a dashboard in Grafana, where they can be filtered and searched.

    +

    In addition to the monitoring and alerting stack, several additional dashboards are installed:

    +
      +
    • The Kubernetes dashboard + for browsing the current state of Kubernetes resources.
      • +
    • The Helm dashboard for browsing the current + state of Helm releases.
      • +
    • The Consul UI + for browsing the Consul state (used by Cluster-as-a-Service and Zenith).
      • +
    • The ARA Records Ansible (ARA) web interface for browsing the + Ansible playbook runs that have been recorded for operations on Cluster-as-a-Service appliances.
      • +
    +

    All the dashboards that access Kubernetes resources are configured to be read-only.

    +

    Accessing web interfaces

    +

    The monitoring and alerting web dashboards are exposed as subdomains under the ingress_base_domain:

    +
      +
    • grafana for the Grafana dashboards
      • +
    • prometheus for the Prometheus web interface
      • +
    • alertmanager for the Alertmanager web interface
      • +
    • consul for the Consul UI
      • +
    • ara for the ARA web interface
      • +
    • helm for the Helm dashboard
      • +
    • kubernetes for the Kubernetes dashboard
      • +
    +

    The dashboards are protected by a username and password (using +HTTP Basic Auth). +The username is admin and a strong password must be set in your configuration:

    +
    environments/my-site/inventory/group_vars/all/secrets.yml
    admin_dashboard_ingress_basic_auth_password: "<secure password>"
+
    +
    +

    Sensitive information

    +

    The dashboards allow read-only access to the internals of your Azimuth installation. +As such you should ensure that a strong password is used, and take care when sharing +it.

    +
    +
    +

    Danger

    +

    This password should be kept secret. If you want to keep the password in Git - which is +recommended - then it must be encrypted.

    +
    +

    Persistence and retention

    +
    +

    Note

    +

    Persistence is only configured for HA deployments.

    +
    +

    In order for metrics, alert state (e.g. silences) and logs to persist across pod restarts, +we must configure Prometheus, Alertmanager and Loki to use persistent volumes to store +their data.

    +

    This is configured by default in an Azimuth HA installation, but you may wish to tweak the +retention periods and/or volume sizes based on your requirements and/or observed usage.

    +

    The following variables, shown with their default values, control the retention periods and +volume sizes for Alertmanager, Prometheus and Loki:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    # Alertmanager retention and volume size
+capi_cluster_addons_monitoring_alertmanager_retention: 168h
+capi_cluster_addons_monitoring_alertmanager_volume_size: 10Gi
+
+# Prometheus retention and volume size
+capi_cluster_addons_monitoring_prometheus_retention: 90d
+capi_cluster_addons_monitoring_prometheus_volume_size: 10Gi
+
+# Loki retention and volume size
+capi_cluster_addons_monitoring_loki_retention: 744h
+capi_cluster_addons_monitoring_loki_volume_size: 10Gi
+
    +
    +

    Danger

    +

    Volumes can only be increased in size. Any attempt to reduce the size of a volume +will be rejected.

    +
    +

    Slack alerts

    +

    If your organisation uses Slack, Alertmanager can be configured to send +alerts to a Slack channel using an Incoming Webhook.

    +

    To enable Slack alerts, you must first +create a webhook. This should +result in a URL of the form:

    +
    https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX
+
    +

    This URL should be placed in the following variable to allow Azimuth's Alertmanager to send +alerts to Slack:

    +
    environments/my-site/inventory/group_vars/all/secrets.yml
    alertmanager_config_slack_webhook_url: https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX
+
    +
    +

    Danger

    +

    The webhook URL should be kept secret. If you want to keep it in Git - which is recommended - +then it must be encrypted.

    +
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/14-disaster-recovery/index.html b/configuration/14-disaster-recovery/index.html new file mode 100644 index 00000000..01d23ff5 --- /dev/null +++ b/configuration/14-disaster-recovery/index.html @@ -0,0 +1,1207 @@ + + + + + + + + + + + + + + + + Disaster Recovery - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
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    + + + + +

    Disaster Recovery

    +

    Azimuth uses Velero as a disaster recovery solution. Velero provides the +ability to back up Kubernetes API resources to an object store and has a plugin-based system +to enable snapshotting of a cluster's persistent volumes.

    +
    +

    Warning

    +

    Backup and restore is only available for production-grade HA installations of Azimuth.

    +
    +

    The Azimuth playbooks install Velero on the HA management cluster and the Velero CLI tool +on the seed node. Once configured with the appropriate credentials, the installation process +will create a Schedule on the HA cluster, +which triggers a daily backup at midnight and cleans up backups older which are more than 1 week old.

    +

    The +AWS Velero plugin is used for S3 support +and the +CSI plugin for volume snapshots. +The CSI plugin uses Kubernetes generic support for +Volume Snapshots, which is +implemented for OpenStack by the +Cinder CSI plugin.

    +

    Configuration

    +

    To enable backup and restore functionality, the following variables should be set in your environment:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    velero_enabled: true
+velero_s3_url: <object-store-endpoint-url>
+velero_bucket_name: <name-of-an-existing-bucket>
+
    +
    environments/my-site/inventory/group_vars/all/secrets.yml
    velero_aws_access_key_id: <S3-access-key-id>
+velero_aws_secret_access_key: <S3-secret-value>
+
    +
    +

    Danger

    +

    The S3 credentials should be kept secret. If you want to keep them in Git - which is recommended - +then it must be encrypted.

    +
    +

    Velero CLI

    +

    The Velero installation process also installs the Velero CLI on the Azimuth seed node, which can be +used to inspect the state of the backups:

    +
    On the seed node, with the kubeconfig for the HA cluster exported
    # List the configured backup locations
+velero backup-location get
+
+# List the backups and their statuses
+velero backup get
+
    +

    See velero -h for other useful commands.

    +

    Restoring from a backup

    +

    To restore from a backup, you must first know the name of the target backup. This can be inferred +from the object names in S3 if the Velero CLI is no longer available.

    +

    Once you have the name of the backup to restore, run the following command with your environment +activated (similar to a provision):

    +
    ansible-playbook stackhpc.azimuth_ops.restore \
+  -e velero_restore_backup_name=<backup name>
+
    +

    This will provision a new HA cluster, restore the backup onto it and then bring the installation +up-to-date with your configuration.

    +

    Performing ad-hoc backups

    +

    In order to perform ad-hoc backups using the same config parameters as the installed backup schedule, +run the following Velero CLI command from the seed node:

    +
    On the seed node, with the kubeconfig for the HA cluster exported
    velero backup create --from-schedule default
+
    +

    This will begin the backup process in the background. The status of this backup (and others) can be +viewed with the velero backup get command shown above.

    +
    +

    Tip

    +

    Ad-hoc backups will have the same time-to-live as the configured schedule backups (default = 7 days). +To change this, pass the --ttl <hours> option to the velero backup create command.

    +
    +

    Modifying the backup schedule

    +

    The following config options are available for modifying the regular backup schedule:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    # Whether or not to perform scheduled backups
+velero_backup_schedule_enabled: true
+# Name for backup schedule kubernetes resource
+velero_backup_schedule_name: default
+# Schedule to use for backups (defaults to every day at midnight)
+# See https://en.wikipedia.org/wiki/Cron for format options
+velero_backup_schedule_timings: "0 0 * * *"
+# Time-to-live for existing backups (defaults to 1 week)
+# See https://pkg.go.dev/time#ParseDuration for duration format options
+velero_backup_schedule_ttl: "168h"
+
    +
    +

    Note

    +

    Setting velero_backup_schedule_enabled: false does not prevent the backup schedule from being +installed - instead it sets the schedule state to paused.

    +

    This allows for ad-hoc backups to still be run on demand using the configured backup parameters.

    +
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/configuration/index.html b/configuration/index.html new file mode 100644 index 00000000..5c767375 --- /dev/null +++ b/configuration/index.html @@ -0,0 +1,1029 @@ + + + + + + + + + + + + + + + + Customising the Azimuth configuration - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    +
    + + +
    +
    + + + + +

    Customising the Azimuth configuration

    +

    The +roles in the azimuth-ops collection +support a vast array of variables to customise an Azimuth deployment. However azimuth-ops +endeavours to pick sensible defaults where appropriate, so this documentation focuses on +configuration that is required or commonly changed.

    +

    For more advanced cases, the role defaults files are extensively documented and can be +consulted directly.

    +
    +

    Note

    +

    Make sure you are familiar with the +Azimuth +and +Zenith +architectures before continuing.

    +

    It is assumed that you have already followed the steps in +Setting up a configuration repository, and so have an environment for your +site that is ready to be configured.

    +
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/debugging/access-ha/index.html b/debugging/access-ha/index.html new file mode 100644 index 00000000..34df1341 --- /dev/null +++ b/debugging/access-ha/index.html @@ -0,0 +1,1049 @@ + + + + + + + + + + + + + + + + Accessing the HA cluster - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + +
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    + + + + +

    Accessing the HA cluster

    +

    HA clusters are provisioned using Cluster API on the K3S node. The Kubernetes API of the +HA cluster is not accessible to the internet, so the K3S node is used to access it.

    +

    On the K3S node, a kubeconfig file for the HA cluster is created in the $HOME directory +of the ubuntu user. You can activate this kubeconfig by setting the KUBECONFIG environment +variable, which allows you to access the HA cluster using kubectl:

    +
    $ ./bin/seed-ssh
+ubuntu@azimuth-staging-seed:~$ export KUBECONFIG=./kubeconfig-azimuth-staging.yaml
+ubuntu@azimuth-staging-seed:~$ kubectl get po -n azimuth
+NAME                                                          READY   STATUS    RESTARTS   AGE
+azimuth-api-6847fcd6c8-746pc                                  1/1     Running   0          55m
+azimuth-caas-operator-ara-79bcd7c5dd-k6zf5                    1/1     Running   0          55m
+azimuth-caas-operator-7d55dddb5b-pm69d                        1/1     Running   0          55m
+azimuth-capi-operator-metrics-57bbdfd8f4-9rqx4                1/1     Running   0          55m
+azimuth-capi-operator-reloader-78f879c866-k4r5w               1/1     Running   0          55m
+azimuth-capi-operator-789b5c8f44-2g4wx                        1/1     Running   0          55m
+azimuth-identity-operator-778c87548b-dkcpn                    1/1     Running   0          55m
+azimuth-ui-fc556-cjwq2                                        1/1     Running   0          55m
+consul-client-8zbnx                                           1/1     Running   0          55m
+consul-client-kf8fl                                           1/1     Running   0          55m
+consul-client-n4w2x                                           1/1     Running   0          55m
+consul-exporter-prometheus-consul-exporter-74bdc5dbc7-l7cb7   1/1     Running   0          55m
+consul-server-0                                               1/1     Running   0          55m
+consul-server-1                                               1/1     Running   0          55m
+consul-server-2                                               1/1     Running   0          55m
+zenith-registrar-86df769979-z2cgb                             1/1     Running   0          55m
+zenith-sshd-768794b88b-48rcf                                  1/1     Running   0          55m
+zenith-sync-8f55f978c-v6czg                                   1/1     Running   0          55m
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/debugging/access-k3s/index.html b/debugging/access-k3s/index.html new file mode 100644 index 00000000..13bd4aef --- /dev/null +++ b/debugging/access-k3s/index.html @@ -0,0 +1,1057 @@ + + + + + + + + + + + + + + + + Accessing the K3S cluster - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Accessing the K3S cluster

    +

    Both the single node and high-availability (HA) deployment methods have a K3S node that +is provisioned using Terraform. In the single node case, this is the cluster that actually +hosts Azimuth and all its dependencies. In the HA case, this cluster is configured as a +Cluster API management cluster for the HA cluster that actually runs Azimuth.

    +

    In both cases, the K3S node is deployed using Terraform and the IP address and SSH key +for accessing the node are in the Terraform state for the environment. The azimuth-config +repository contains a utility script - +seed-ssh - that will +extract these details from the Terraform state for the active environment and use them to +execute an SSH command to access the provisioned node.

    +

    Once on the node, you can use kubectl to inspect the state of the Kubernetes cluster. It +is already configured with the correct kubeconfig file:

    +
    $ ./bin/seed-ssh
+ubuntu@azimuth-staging-seed:~$ kubectl get po -A
+NAMESPACE                           NAME                                                              READY   STATUS      RESTARTS       AGE
+kube-system                         coredns-7796b77cd4-mk9gw                                          1/1     Running     0              2d
+kube-system                         metrics-server-ff9dbcb6c-nbpjt                                    1/1     Running     0              2d
+cert-manager                        cert-manager-webhook-5fd7d458f7-scwd8                             1/1     Running     0              2d
+kube-system                         local-path-provisioner-84bb864455-r4vd2                           1/1     Running     0              2d
+cert-manager                        cert-manager-66b6d6bf59-vzqrq                                     1/1     Running     0              2d
+capi-system                         capi-controller-manager-7f45d4b75b-47cf4                          1/1     Running     0              2d
+capi-kubeadm-control-plane-system   capi-kubeadm-control-plane-controller-manager-5f5d7fb49-684n9     1/1     Running     0              2d
+cert-manager                        cert-manager-cainjector-856d4df858-bgs4d                          1/1     Running     0              2d
+capo-system                         capo-controller-manager-5c9748574f-vnbzp                          1/1     Running     0              2d
+capi-kubeadm-bootstrap-system       capi-kubeadm-bootstrap-controller-manager-c444455b5-zn4qw         1/1     Running     0              2d
+default                             azimuth-staging-addons-cloud-config-install-9eeff--1-694x4        0/1     Completed   0              2d
+default                             azimuth-staging-addons-cni-calico-install-0d58f--1-cjwzx          0/1     Completed   0              2d
+default                             azimuth-staging-addons-ccm-openstack-install-bc2b0--1-jlb4b       0/1     Completed   0              2d
+default                             azimuth-staging-addons-prometheus-operator-crds-instal--1-sn66s   0/1     Completed   0              2d
+default                             azimuth-staging-addons-metrics-server-install-45390--1-rr5m6      0/1     Completed   0              2d
+default                             azimuth-staging-addons-csi-cinder-install-53888--1-cg9gq          0/1     Completed   0              2d
+default                             azimuth-staging-addons-ingress-nginx-install-478f3--1-p4hwb       0/1     Completed   0              2d
+default                             azimuth-staging-addons-loki-stack-install-c8cd1--1-5z2wc          0/1     Completed   0              2d
+default                             azimuth-staging-addons-kube-prometheus-stack-install-4--1-xgmvd   0/1     Completed   0              2d
+default                             azimuth-staging-autoscaler-66cc55487c-qfpgn                       1/1     Running     0              2d
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
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    Accessing the monitoring

    +

    As discussed in Monitoring and alerting, the monitoring +dashboards are exposed as subdomains under ingress_base_domain and protected by a username +and password.

    +

    Grafana

    +

    Grafana is accessed as grafana.<ingress base domain>, e.g. grafana.azimuth.example.org, +and can be used to access various dashboards showing the health of the Azimuth installation +and its underlying Kubernetes cluster. For example, there are dashboards for resource +usage, network traffic, etcd, tenant Kubernetes and CaaS clusters, Zenith services, +pod logs and systemd logs.

    +

    Prometheus

    +

    Prometheus is accessed as prometheus.<ingress base domain>, and can be used to browse the +configured alerts and see which are firing or pending. It can also be used to make ad-hoc +queries of the metrics for the installation.

    +

    Alertmanager

    +

    Alertmanager is accessed as alertmanager.<ingress base domain>, and can be used to manage +the firing alerts and configure silences if required.

    +

    Kubernetes dashboard

    +

    The Kubernetes dashboard is accessed as kubernetes.<ingress base domain>, and can be used to +browse the current state of Kubernetes resources in the cluster. This includes streaming the +logs of current pods.

    +

    Helm dashboard

    +

    The Helm dashboard is accessed as helm.<ingress base domain>, and can be used to browse the +current state of the Helm releases on the cluster. The dashboard does also attempt to infer +the health of the resources deployed by Helm, however this does sometimes report false-positives.

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
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    + + + + + + + + \ No newline at end of file diff --git a/debugging/caas/index.html b/debugging/caas/index.html new file mode 100644 index 00000000..9fa05cd0 --- /dev/null +++ b/debugging/caas/index.html @@ -0,0 +1,1182 @@ + + + + + + + + + + + + + + + + Debugging Cluster-as-a-Service - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + + + +

    Debugging Cluster-as-a-Service

    +

    As described in configuring CaaS, Azimuth uses +the Azimuth CaaS operator to +manage clusters.

    +

    The Azimuth API creates a namespace for each project in which instances of the +CaaS CRDs are created in order to create tenant clusters. These namespaces are +of the form caas-<sanitized project id>.

    +

    When issues occur with cluster provisioning, here are some things to try in order to +locate the issue.

    +

    CRDs installed and operator running

    +

    First, check that the CaaS CRDs have been registered:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl get crd | grep caas
+clusters.caas.azimuth.stackhpc.com                           2023-07-03T13:33:28Z
+clustertypes.caas.azimuth.stackhpc.com                       2023-07-03T13:33:28Z
+
    +

    If they do not exist, check if the azimuth-caas-operator is running:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n azimuth get po -l app.kubernetes.io/instance=azimuth-caas-operator
+NAME                                         READY   STATUS    RESTARTS   AGE
+azimuth-caas-operator-ara-79bcd7c5dd-k6zf5   1/1     Running   0          18m
+azimuth-caas-operator-7d55dddb5b-pm69d       1/1     Running   0          18m
+
    +

    Cluster resource exists

    +

    Next, check if the cluster resource exists in the tenant namespace:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx get cluster.caas
+NAME          AGE
+demo-ws      7m45s
+demo-slurm   7m26s
+
    +

    Check the status of the cluster you want to debug:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx describe cluster.caas demo-ws
+Name:         demo-ws
+Namespace:    caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+...
+
    +

    Check if jobs were scheduled

    +

    The Azimuth CaaS operator schedules Kubernetes jobs that use +ansible-runner to +execute the required Ansible. If the operator is functioning properly, you should +see these jobs being created:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx get job
+NAME                      COMPLETIONS   DURATION   AGE
+demo-slurm-create-pwqmh   0/1           14m        14m
+demo-ws-create-9nx96      1/1           4m36s      14m
+
    +

    If the jobs are not being scheduled, check the logs of the CaaS operator to see +what is stopping them from being created:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n azimuth logs deploy/azimuth-caas-operator [-f]
+
    +

    If you need to restart the operator, you can use the following command:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n azimuth rollout restart deploy/azimuth-caas-operator
+
    +

    If the jobs are being scheduled, you can also check the pods that are created +to see if there are issues:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx get po
+NAME                            READY   STATUS      RESTARTS   AGE
+demo-ws-create-9nx96-m2l97      0/1     Completed   0          21m
+demo-slurm-create-pwqmh-jsbmk   0/1     Completed   0          20m
+
    +

    If any of the pods are getting stuck in the init phase, check the logs of the +init containers to see if there are issues checking out the appliance code or +installing the Ansible dependencies:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx logs demo-ws-create-9nx96-m2l97 [-c [inventory|clone]]
+
    +

    Check Ansible output

    +

    Azimuth includes a deployment of +ARA Records Ansible (ARA) that is used to record +Ansible playbook executions as they are run by the CaaS operator. If the job is getting +as far as starting to run Ansible, then ARA is a much easier way to debug the Ansible +for an appliance than wading through the Ansible logs from the job.

    +

    As discussed in Monitoring and alerting, the ARA +web interface is exposed as ara.<ingress base domain>, e.g. ara.azimuth.example.org, +and is protected by a username and password.

    +

    Once inside, you can look at the details of the recently executed jobs, see which +tasks failed and what variables were set at the time.

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
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    + + + + + + + + \ No newline at end of file diff --git a/debugging/consul/index.html b/debugging/consul/index.html new file mode 100644 index 00000000..98504356 --- /dev/null +++ b/debugging/consul/index.html @@ -0,0 +1,1153 @@ + + + + + + + + + + + + + + + + Debugging Consul - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Debugging Consul

    +
    +

    Info

    +

    Consul is installed using upstream Helm charts.

    +

    Documentation and bug reports supplied upstream can sometimes provide helpful troubleshooting steps for issues outside the scope of this documentation.

    +
    +
    +

    Warning

    +

    Consul cluster failures are most common during and after network interruptions or activities which +cause HA cluster nodes to be created or destroyed, such as:

    +
      +
    • Upgrading the HA cluster to a new Kubernetes version (which requires a new image).
      • +
    • An auto-healing event has replaced a HA cluster member which was determined to be in a down state.
      • +
    +
    +

    Consul failures are generally confined to two failure modes:

    +

    Failing leader elections

    +

    This failure mode is characterised by an increase in leader election events, which +may trigger Alertmanager alerts.

    +

    Additionally, log messages in the following format are generated by consul-server:

    +
    2023-04-19T14:39:46.896Z [ERROR] agent.anti_entropy: failed to sync remote state: error="No cluster leader"
+2023-04-19T14:39:47.736Z [INFO]  agent.server: New leader elected: payload=consul-server-1
+2023-04-19T14:39:51.495Z [WARN]  agent.server.raft: Election timeout reached, restarting election
+2023-04-19T14:39:51.495Z [INFO]  agent.server.raft: entering candidate state: node="Node at 172.16.189.31:8300 [Candidate]" term=598
+
    +

    View the consul-server logs using the following command:

    +
    On the K3S node, targetting the HA cluster
    kubectl -n azimuth logs statefulsets/consul-server
+
    +

    To remedy the errors, issue a rolling restart the Consul cluster:

    +
    On the K3S node, targetting the HA cluster
    kubectl -n azimuth rollout restart daemonset/consul-client
+kubectl -n azimuth rollout restart sts/consul-server
+
    +

    Check consul-server logs for leader elections that fail:

    +
    On the K3S node, targetting the HA cluster
    kubectl -n azimuth logs statefulsets/consul-server
+
    +

    Delete any pods that fail to become leader:

    +
    On the K3S node, targetting the HA cluster
    kubectl -n azimuth delete pod $FAILING_CONSUL_SERVER
+
    +

    For the example logs given above, the correct command would be:

    +
    On the K3S node, targetting the HA cluster
    kubectl -n azimuth delete pod consul-server-1
+
    +

    Wait for all consul pods to become ready:

    +
    On the K3S node, targetting the HA cluster
    kubectl get -n azimuth po -l app=consul
+NAME                  READY   STATUS    RESTARTS      AGE
+consul-server-0       1/1     Running   0             12m
+consul-server-1       1/1     Running   0             11m
+consul-server-2       1/1     Running   0             11m
+consul-client-9x6k7   1/1     Running   0             13m
+consul-client-9e87d   1/1     Running   0             12m
+consul-client-f73c3   1/1     Running   0             12m
+
    +

    After removing misbehaving clients, consul-server should log no futher [ERROR] messages related to failed leader +elections, and Zenith Sync should begin to reconcile services, which can be monitored as descibed in the Debugging Zenith services section.

    +

    Clients registering with an existing name but new IP address

    +

    This failure mode is characterised by an increase in RPC errors reported by Consul, which +may trigger Alertmanager alerts.

    +

    Additionally, log messages in the following format are generated by consul-server:

    +
    2023-08-04T09:04:45.998Z [ERROR] agent.client: RPC failed to server: method=Catalog.Register server=172.23.196.11:8300 error="rpc error making call: rpc error making call: failed inserting node: Error while renaming Node ID: \"deadbeef-dead-beef-dead-beefdeadbee4\": Node name azimuth-env1-md-0-9aacb97c-ggdnb is reserved by node deadbeef-0000-0000-0000-000000000000 with name azimuth-env1-md-0-9aacb97c-ggdnb (172.17.195.48)"
+2023-08-04T09:04:45.998Z [WARN]  agent: Syncing node info failed.: error="rpc error making call: rpc error making call: failed inserting node: Error while renaming Node ID: \"deadbeef-dead-beef-dead-beefdeadbee4\": Node name azimuth-env1-md-0-9aacb97c-ggdnb is reserved by node deadbeef-0000-0000-0000-000000000000 with name azimuth-env1-md-0-9aacb97c-ggdnb (172.17.195.48)"
+2023-08-04T09:04:45.998Z [ERROR] agent.anti_entropy: failed to sync remote state: error="rpc error making call: rpc error making call: failed inserting node: Error while renaming Node ID: \"deadbeef-dead-beef-dead-beefdeadbee4\": Node name azimuth-env1-md-0-9aacb97c-ggdnb is reserved by node deadbeef-0000-0000-0000-000000000000 with name azimuth-env1-md-0-9aacb97c-ggdnb (172.17.195.48)"
+
    +

    View the consul-server logs using the following command:

    +
    On the K3S node, targetting the HA cluster
    kubectl -n azimuth logs statefulsets/consul-server
+
    +

    To remedy the errors, remove the misbehaving client from the Consul cluster. The client will reattempt registration.

    +
    On the K3S node, targetting the HA cluster
    kubectl -n azimuth exec consul-server-0 -- curl --request PUT --data '{"Node":"$NODENAME"}' -v http://localhost:8500/v1/catalog/deregister
+
    +

    For the example logs given above, the correct command would be:

    +
    On the K3S node, targetting the HA cluster
    kubectl -n azimuth exec consul-server-0 -- curl --request PUT --data '{"Node":"azimuth-env1-md-0-9aacb97c-ggdnb"}' -v http://localhost:8500/v1/catalog/deregister
+
    +

    This process may need to be repeated multiple times, for each node whose node name appears in the consul-server log.

    +

    After removing misbehaving clients, consul-server should log no futher [ERROR] messages related to client RPC calls, +and Zenith Sync should begin to reconcile services, which can be monitored as descibed in the Debugging Zenith services section.

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
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    +
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    + + + + + + + + \ No newline at end of file diff --git a/debugging/index.html b/debugging/index.html new file mode 100644 index 00000000..889a804e --- /dev/null +++ b/debugging/index.html @@ -0,0 +1,1017 @@ + + + + + + + + + + + + + + + + Debugging Azimuth - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Debugging Azimuth

    +

    This section provides tips on debugging some common issues with the components of +an Azimuth installation.

    +

    All of these debugging tips assume that you have activated the environment that you +want to debug using:

    +
    source ./bin/activate my-site
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
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    Debugging Kubernetes

    +

    As described in Configuring Kubernetes, +Azimuth uses Cluster API to manage tenant Kubernetes +clusters.

    +

    Cluster API resources are managed by releases of the +openstack-cluster Helm chart, +which in turn are managed by the +azimuth-capi-operator in response +to changes to instances of the clusters.azimuth.stackhpc.com custom resource. +These instances are created, updated and deleted in Kubernetes by the Azimuth API in +response to user actions.

    +

    The Azimuth API creates a namespace for each project, in which cluster resources are +created. These namespaces are of the form az-<sanitized project name>.

    +

    It is also important to note that the Kubernetes API servers for tenant clusters do +not use Octavia load balancers like the Azimuth HA cluster. Instead, the API servers +for tenant clusters are exposed via Zenith.

    +

    When issues occur with cluster provisioning, here are some things to try in order to +locate the issue.

    +

    Cluster resource exists

    +

    First, check if the cluster resource exists in the tenant namespace:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n az-demo get cluster
+NAME   LABEL  TEMPLATE      KUBERNETES VERSION   PHASE   NODE COUNT   AGE
+demo   demo   kube-1-24-2   1.24.2               Ready   4            11d
+
    +

    If no cluster resource exists, check if the Kubernetes CRDs are installed:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl get crd | grep azimuth
+apptemplates.azimuth.stackhpc.com                            2022-11-02T11:11:13Z
+clusters.azimuth.stackhpc.com                                2022-11-02T10:53:26Z
+clustertemplates.azimuth.stackhpc.com                        2022-11-02T10:53:26Z
+
    +

    If they do not exist, check if the azimuth-capi-operator is running:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n azimuth get po -l app.kubernetes.io/instance=azimuth-capi-operator
+NAME                                     READY   STATUS    RESTARTS   AGE
+azimuth-capi-operator-5c65c4b598-h2thx   1/1     Running   0          10d
+
    +

    Helm release exists

    +

    The first thing that the azimuth-capi-operator does when it sees a new cluster resource +is make a Helm release:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ helm -n az-demo list -a
+NAME   NAMESPACE      REVISION        UPDATED                                 STATUS          CHART                                   APP VERSION
+demo   az-demo        1               2022-07-07 13:26:22.94084961 +0000 UTC  deployed        openstack-cluster-0.1.0-dev.0.main.161  a0bcee5
+
    +

    If the Helm release does not exist, restart the azimuth-capi-operator:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n azimuth rollout restart deploy/azimuth-capi-operator
+
    +

    If the Helm release does not get created, even after a restart, check the logs +of the azimuth-capi-operator for any warnings or errors:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n azimuth logs deploy/azimuth-capi-operator [-f]
+
    +

    Cluster API resource status

    +

    If the Helm release is in the deployed status, the next thing to check is the +state of the Cluster API resources that were created:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n az-demo get cluster-api
+NAME                                                                  CLUSTER   BOOTSTRAP   TARGET NAMESPACE       RELEASE NAME                       PHASE      REVISION   AGE
+manifests.addons.stackhpc.com/demo-cloud-config                       demo      true        openstack-system       cloud-config                       Deployed   1          11d
+manifests.addons.stackhpc.com/demo-csi-cinder-storageclass            demo      true        openstack-system       csi-cinder-storageclass            Deployed   1          11d
+manifests.addons.stackhpc.com/demo-kube-prometheus-stack-client       demo      true        monitoring-system      kube-prometheus-stack-client       Deployed   2          11d
+manifests.addons.stackhpc.com/demo-kube-prometheus-stack-dashboards   demo      true        monitoring-system      kube-prometheus-stack-dashboards   Deployed   1          11d
+manifests.addons.stackhpc.com/demo-kubernetes-dashboard-client        demo      true        kubernetes-dashboard   kubernetes-dashboard-client        Deployed   2          11d
+manifests.addons.stackhpc.com/demo-loki-stack-dashboards              demo      true        monitoring-system      loki-stack-dashboards              Deployed   1          11d
+
+NAME                                                             CLUSTER   BOOTSTRAP   TARGET NAMESPACE         RELEASE NAME                PHASE      REVISION   CHART NAME                           CHART VERSION         AGE
+helmrelease.addons.stackhpc.com/dask-demo                        demo                  dask-demo                dask-demo                   Deployed   1          daskhub-azimuth                      0.1.0-dev.0.main.23   11d
+helmrelease.addons.stackhpc.com/demo-ccm-openstack               demo      true        openstack-system         ccm-openstack               Deployed   1          openstack-cloud-controller-manager   1.3.0                 11d
+helmrelease.addons.stackhpc.com/demo-cni-calico                  demo      true        tigera-operator          cni-calico                  Deployed   1          tigera-operator                      v3.23.3               11d
+helmrelease.addons.stackhpc.com/demo-csi-cinder                  demo      true        openstack-system         csi-cinder                  Deployed   1          openstack-cinder-csi                 2.2.0                 11d
+helmrelease.addons.stackhpc.com/demo-kube-prometheus-stack       demo      true        monitoring-system        kube-prometheus-stack       Deployed   1          kube-prometheus-stack                40.1.0                11d
+helmrelease.addons.stackhpc.com/demo-kubernetes-dashboard        demo      true        kubernetes-dashboard     kubernetes-dashboard        Deployed   1          kubernetes-dashboard                 5.10.0                11d
+helmrelease.addons.stackhpc.com/demo-loki-stack                  demo      true        monitoring-system        loki-stack                  Deployed   1          loki-stack                           2.8.2                 11d
+helmrelease.addons.stackhpc.com/demo-mellanox-network-operator   demo      true        network-operator         mellanox-network-operator   Deployed   1          network-operator                     1.3.0                 11d
+helmrelease.addons.stackhpc.com/demo-metrics-server              demo      true        kube-system              metrics-server              Deployed   1          metrics-server                       3.8.2                 11d
+helmrelease.addons.stackhpc.com/demo-node-feature-discovery      demo      true        node-feature-discovery   node-feature-discovery      Deployed   1          node-feature-discovery               0.11.2                11d
+helmrelease.addons.stackhpc.com/demo-nvidia-gpu-operator         demo      true        gpu-operator             nvidia-gpu-operator         Deployed   1          gpu-operator                         v1.11.1               11d
+
+NAME                                                                CLUSTER   AGE
+kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-control-plane-5kjjt   demo     11d
+kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-control-plane-897r6   demo     11d
+kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-control-plane-x26zz   demo     11d
+kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-sm0-cc21616d-lddk6    demo     11d
+
+NAME                                                                  AGE
+kubeadmconfigtemplate.bootstrap.cluster.x-k8s.io/demo-sm0-cc21616d   11d
+
+NAME                                                     CLUSTER  EXPECTEDMACHINES   MAXUNHEALTHY   CURRENTHEALTHY   AGE
+machinehealthcheck.cluster.x-k8s.io/demo-control-plane   demo     3                  100%           3                11d
+machinehealthcheck.cluster.x-k8s.io/demo-sm0             demo     1                  100%           1                11d
+
+NAME                                             CLUSTER  REPLICAS   READY   AVAILABLE   AGE   VERSION
+machineset.cluster.x-k8s.io/demo-sm0-c99fb7798   demo     1          1       1           11d   v1.24.2
+
+NAME                                          CLUSTER  REPLICAS   READY   UPDATED   UNAVAILABLE   PHASE     AGE   VERSION
+machinedeployment.cluster.x-k8s.io/demo-sm0   demo     1          1       1         0             Running   11d   v1.24.2
+
+NAME                            PHASE         AGE   VERSION
+cluster.cluster.x-k8s.io/demo   Provisioned   11d   
+
+NAME                                                CLUSTER  NODENAME                            PROVIDERID                                          PHASE     AGE   VERSION
+machine.cluster.x-k8s.io/demo-control-plane-7p8zv   demo     demo-control-plane-7d76d0be-z6dm8   openstack:///f687f926-3cee-4550-91e5-32c2885708b0   Running   11d   v1.24.2
+machine.cluster.x-k8s.io/demo-control-plane-9skvh   demo     demo-control-plane-7d76d0be-d2mcr   openstack:///ea91f79a-8abb-4cb9-a2ea-8f772568e93c   Running   11d   v1.24.2
+machine.cluster.x-k8s.io/demo-control-plane-s8dhv   demo     demo-control-plane-7d76d0be-j64w6   openstack:///33a3a532-348a-4b93-ab19-d7d8cdb0daa4   Running   11d   v1.24.2
+machine.cluster.x-k8s.io/demo-sm0-c99fb7798-qqk4j   demo     demo-sm0-7d76d0be-gdjwv             openstack:///ef9ae59c-bf20-44e0-831f-3798d25b7a06   Running   11d   v1.24.2
+
+NAME                                                                   CLUSTER  INITIALIZED   API SERVER AVAILABLE   REPLICAS   READY   UPDATED   UNAVAILABLE   AGE   VERSION
+kubeadmcontrolplane.controlplane.cluster.x-k8s.io/demo-control-plane   demo     true          true                   3          3       3         0             11d   v1.24.2
+
+NAME                                                    CLUSTER  READY   NETWORK                                SUBNET                                 BASTION IP
+openstackcluster.infrastructure.cluster.x-k8s.io/demo   demo     true    4b6b2722-ee5b-40ec-8e52-a6610e14cc51   73e22c49-10b8-4763-af2f-4c0cce007c82   
+
+NAME                                                                                 CLUSTER  INSTANCESTATE   READY   PROVIDERID                                          MACHINE
+openstackmachine.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be-d2mcr   demo     ACTIVE          true    openstack:///ea91f79a-8abb-4cb9-a2ea-8f772568e93c   demo-control-plane-9skvh
+openstackmachine.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be-j64w6   demo     ACTIVE          true    openstack:///33a3a532-348a-4b93-ab19-d7d8cdb0daa4   demo-control-plane-s8dhv
+openstackmachine.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be-z6dm8   demo     ACTIVE          true    openstack:///f687f926-3cee-4550-91e5-32c2885708b0   demo-control-plane-7p8zv
+openstackmachine.infrastructure.cluster.x-k8s.io/demo-sm0-7d76d0be-gdjwv             demo     ACTIVE          true    openstack:///ef9ae59c-bf20-44e0-831f-3798d25b7a06   demo-sm0-c99fb7798-qqk4j
+
+NAME                                                                                   AGE
+openstackmachinetemplate.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be   11d
+openstackmachinetemplate.infrastructure.cluster.x-k8s.io/demo-sm0-7d76d0be             11d
+
    +

    The cluster.cluster.x-k8s.io resource should be Provisioned, the machine.cluster.x-k8s.io +resources should be Running with an associated NODENAME, the +openstackmachine.infrastructure.cluster.x-k8s.io resources should be ACTIVE and the +{manifests,helmrelease}.addons.stackhpc.com resources should all be Deployed.

    +

    If this is not the case, first check the interactive console of the cluster nodes in Horizon +to see if the nodes had any problems joining the cluster. Also +check to see if the Zenith service for the API server was created +correctly - once all control plane nodes have registered correctly the Endpoints resource +for the service should have an entry for each control plane node (usually three).

    +

    If these all look OK, check the logs of the Cluster API providers for any errors:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n capi-system logs deploy/capi-controller-manager
+kubectl -n capi-kubeadm-bootstrap-system logs deploy/capi-kubeadm-bootstrap-controller-manager
+kubectl -n capi-kubeadm-control-plane-system logs deploy/capi-kubeadm-control-plane-controller-manager
+kubectl -n capo-system logs deploy/capo-controller-manager
+kubectl -n capi-addon-system logs deploy/cluster-api-addon-provider
+
    +

    Zenith service issues

    +

    Zenith services are enabled on Kubernetes clusters using the +Zenith operator. Each tenant +Kubernetes cluster gets an instance of the operator that runs on the Azimuth cluster, +where it can reach the Zenith registrar to allocate subdomains, but watches the tenant +cluster for instances of the reservation.zenith.stackhpc.com and +client.zenith.stackhpc.com custom resources.

    +

    By creating instances of these resources in the tenant cluster, Kubernetes Services in +the target cluster can be exposed via Zenith.

    +

    If Zenith services are not becoming available for Kubernetes cluster services, +first follow the procedure for +debugging a Zenith service, including checking that the clients +were created correctly and that the pods are running:

    +
    Targetting the tenant cluster
    $ kubectl get zenith -A
+NAMESPACE              NAME                                               PHASE       UPSTREAM SERVICE                MITM ENABLED   MITM AUTH        AGE
+kubernetes-dashboard   client.zenith.stackhpc.com/kubernetes-dashboard    Available   kubernetes-dashboard            true           ServiceAccount   4d19h
+monitoring-system      client.zenith.stackhpc.com/kube-prometheus-stack   Available   kube-prometheus-stack-grafana   true           Basic            4d19h
+
+NAMESPACE              NAME                                                    SECRET                                    PHASE   FQDN                                                                AGE
+kubernetes-dashboard   reservation.zenith.stackhpc.com/kubernetes-dashboard    kubernetes-dashboard-zenith-credential    Ready   mwqgcdrk77nva18uzcct3g7jlo7obi7zlbcgemuhk6nhk.azimuth.example.org   4d19h
+monitoring-system      reservation.zenith.stackhpc.com/kube-prometheus-stack   kube-prometheus-stack-zenith-credential   Ready   zovdsnnesww2hiw074mvufvcfgczfbd2yhmuhsf3p59xa.azimuth.example.org   4d19h
+
+
+$ kubectl get deploy,po -A -l app.kubernetes.io/managed-by=zenith-operator
+NAMESPACE              NAME                                                  READY   UP-TO-DATE   AVAILABLE   AGE
+kubernetes-dashboard   deployment.apps/kubernetes-dashboard-zenith-client    1/1     1            1           4d19h
+monitoring-system      deployment.apps/kube-prometheus-stack-zenith-client   1/1     1            1           4d19h
+
+NAMESPACE              NAME                                                      READY   STATUS    RESTARTS   AGE
+kubernetes-dashboard   pod/kubernetes-dashboard-zenith-client-86c5fd9bd-2jfdb    2/2     Running   0          4d19h
+monitoring-system      pod/kube-prometheus-stack-zenith-client-b9986579d-qgp82   2/2     Running   0          9h
+
    +
    +

    Tip

    +

    The kubeconfig for a tenant cluster is available in a secret in the tenant namespace:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n az-demo get secret | grep kubeconfig
+demo-kubeconfig                                   cluster.x-k8s.io/secret               1      11d
+
    +
    +

    If everything looks OK, try restarting the Zenith operator for the cluster:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n az-demo rollout restart deploy/demo-zenith-operator
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/debugging/zenith-services/index.html b/debugging/zenith-services/index.html new file mode 100644 index 00000000..7ee80195 --- /dev/null +++ b/debugging/zenith-services/index.html @@ -0,0 +1,1211 @@ + + + + + + + + + + + + + + + + Debugging Zenith services - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + + + + +
    + + +
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    + + + + +
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    +
    + + + +
    +
    +
    + + + +
    +
    +
    + + +
    +
    + + + + +

    Debugging Zenith services

    +

    If a Zenith service does not become available, the most common causes are:

    +

    Client not connecting to SSHD

    +

    The first thing that happens to connect a Zenith service is that the Zenith client +must connect to the Zenith SSHD. To see if a Zenith client is connecting, check for the +Zenith subdomain in the logs of the SSHD server:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n azimuth logs deploy/zenith-server-sshd [-f]
+
    +

    If there are no logs for the target Zenith subdomain, this usually indicates a problem +with the client. Check the logs for the client and restart it if necessary. If problems +persist, try restarting the Zenith SSHD:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n azimuth rollout restart deployment/zenith-server-sshd
+
    +

    Client not registered in Consul

    +

    Once a client has connected to SSHD successfully, it should get registered in +Consul.

    +

    To determine if this is the case, it is useful to access the Consul UI. As discussed +in Monitoring and alerting, the Consul UI +is exposed as consul.<ingress base domain>, e.g. consul.azimuth.example.org, +and is protected by a username and password.

    +

    The default view shows Consul's view of the services, where you can check if the +service is being registered correctly.

    +

    Clients not registering correctly in Consul usually indicates an issue with Consul +itself. Futher information for debugging Consul issues is provided in +Debugging Consul.

    +

    If the issue persists once Consul issues are ruled out, try restarting SSHD:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n azimuth rollout restart deployment/zenith-server-sshd
+
    +

    OIDC credentials not created

    +

    Keycloak OIDC credentials for Zenith services for platforms deployed using Azimuth are created +by the azimuth-identity-operator.

    +

    To see if this step has happened, check the status of the realm and platform resources +created by the identity operator. They should all be in the Ready phase:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl get realm,platform -A
+NAMESPACE   NAME                                          PHASE   TENANCY ID      OIDC ISSUER                                           AGE
+az-demo     realm.identity.azimuth.stackhpc.com/az-demo   Ready   xxxxxxxxxxxxx   https://identity.azimuth.example.org/realms/az-demo   4d2h
+
+NAMESPACE   NAME                                                        PHASE   AGE
+az-demo     platform.identity.azimuth.stackhpc.com/kube-mykubecluster   Ready   114s
+
    +

    If any of these resources stay in an unready state for more than a few minutes, try restarting +the identity operator:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n azimuth rollout restart deployment/azimuth-identity-operator
+
    +

    Kubernetes resources for the Zenith service have not been created

    +

    If the service exists in Consul, it is possible that the process that synchronises Consul +services with Kubernetes resources is not functioning correctly. To check if Kubernetes +resources are being created, run the following command and check that the Ingress, +Service and Endpoints resources have been created for the service:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n zenith-services get ingress,service,endpoints
+NAME                                                            CLASS   HOSTS                                                     ADDRESS         PORTS     AGE
+ingress.networking.k8s.io/cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g   nginx   cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g.azimuth.example.org   96.241.100.96   80, 443   2d
+ingress.networking.k8s.io/i03xvflgk1zmtcsdm2x5z5lz9qz05027euw   nginx   i03xvflgk1zmtcsdm2x5z5lz9qz05027euw.azimuth.example.org   96.241.100.96   80, 443   2d
+ingress.networking.k8s.io/pxmvy7235x2ggfvf2op615gvz2v59wkqglc   nginx   pxmvy7235x2ggfvf2op615gvz2v59wkqglc.azimuth.example.org   96.241.100.96   80, 443   2d
+ingress.networking.k8s.io/txn3zidfdnru5rg109voh848n51rvicmr1s   nginx   txn3zidfdnru5rg109voh848n51rvicmr1s.azimuth.example.org   96.241.100.96   80, 443   2d
+
+NAME                                          TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)   AGE
+service/cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g   ClusterIP   172.27.10.109    <none>        80/TCP    2d
+service/i03xvflgk1zmtcsdm2x5z5lz9qz05027euw   ClusterIP   172.30.203.227   <none>        80/TCP    2d
+service/pxmvy7235x2ggfvf2op615gvz2v59wkqglc   ClusterIP   172.28.51.148    <none>        80/TCP    2d
+service/txn3zidfdnru5rg109voh848n51rvicmr1s   ClusterIP   172.29.136.245   <none>        80/TCP    2d
+
+NAME                                            ENDPOINTS                                                     AGE
+endpoints/cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g   172.18.152.99:34665                                           2d
+endpoints/i03xvflgk1zmtcsdm2x5z5lz9qz05027euw   172.18.152.99:39409                                           2d
+endpoints/pxmvy7235x2ggfvf2op615gvz2v59wkqglc   172.18.152.99:44761,172.18.152.99:36483,172.18.152.99:46449   2d
+endpoints/txn3zidfdnru5rg109voh848n51rvicmr1s   172.18.152.99:45379                                           2d
+
    +
    +

    Tip

    +

    If an ingress resource does not have an IP, this may be a sign that the ingress controller +is not correctly configured or not functioning correctly.

    +
    +

    If they do not exist, try restarting the Zenith sync component:

    +
    On the K3S node, targetting the HA cluster if deployed
    kubectl -n azimuth rollout restart deployment/zenith-server-sync
+
    +

    cert-manager fails to obtain a certificate

    +

    If you are using cert-manager to dynamically allocate certificates for Zenith services it +is possible that cert-manager has failed to obtain a certificate for the service, e.g. because +it has been rate-limited.

    +

    To check if this is the case, check the state of the certificates for the Zenith services:

    +
    On the K3S node, targetting the HA cluster if deployed
    $ kubectl -n zenith-services get certificate
+NAME                                      READY   SECRET                                    AGE
+tls-cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g   True    tls-cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g   2d
+tls-i03xvflgk1zmtcsdm2x5z5lz9qz05027euw   True    tls-i03xvflgk1zmtcsdm2x5z5lz9qz05027euw   2d
+tls-txn3zidfdnru5rg109voh848n51rvicmr1s   True    tls-txn3zidfdnru5rg109voh848n51rvicmr1s   2d
+
    +

    If the certificate for the service is not ready, check the details for the certificate using +kubectl describe and check for any errors that have occured.

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/deployment/automation/index.html b/deployment/automation/index.html new file mode 100644 index 00000000..0d4de237 --- /dev/null +++ b/deployment/automation/index.html @@ -0,0 +1,1351 @@ + + + + + + + + + + + + + + + + Automating deployments - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
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    + + + + +

    Automating deployments

    +

    For a production installation of Azimuth, it is recommended to adopt a +continuous delivery approach to +deployment rather than running deployment commands manually. Using this approach, +configuration changes are automatically deployed to test, staging and production +environments, although deployments to production typically include a manual approval.

    +
    +

    Continuous delivery vs continuous deployment

    +

    Continuous delivery is very similar to +Continuous Deployment with +the exception that in continuous deployment, production deployments are also fully +automated with no manual intervention or approval.

    +
    +
    +

    Using a site mixin

    +

    To get the maximum benefit from automated deployments and the +feature branch workflow, +you should try to minimise the differences between the production, staging and +dynamic review environments.

    +

    The best way to do this is to use a +site mixin that contains all the +site-specific configuration that is common between your environments, e.g. extra +community images, custom Kubernetes templates, networking configuration, and include +it in each of your concrete environments.

    +
    +

    GitLab CI/CD

    +

    azimuth-config provides a +sample configuration +for use with GitLab CI/CD that demonstrates how to +set up continuous delivery for an Azimuth configuration repository.

    +
    +

    Tip

    +

    If you are using GitLab for your configuration repository, make sure you have +configured it to use GitLab-managed Terraform state.

    +
    +
    +

    Runner configuration

    +

    Configuration of GitLab runners for executing +CI/CD jobs is beyond the scope of this documentation.

    +

    We assume that a runner is available to the configuration project that is able +to execute user-specified images, e.g. using the +Docker or +Kubernetes executors.

    +

    One option is to deploy a runner as a +VM in an OpenStack project.

    +
    +

    Automated deployments

    +

    The sample GitLab CI/CD configuration makes use of +GitLab environments to manage +deployments of Azimuth, where each GitLab environment uses a concrete configuration +environment in your repository. This is a one-to-one relationship except for +per-branch dynamic review environments, +where multiple GitLab environments will use a single configuration environment.

    +

    If you are using GitLab-managed Terraform state, each GitLab environment (not +configuration environment) will get it's own independent Terraform state.

    +

    The sample configuration defines the following deployment jobs:

    +
      +
    1. Each commit to a branch other than main (e.g. a feature branch), triggers an + automated deployment to a branch-specific + dynamic GitLab environment, + using a single concrete configuration environment. These + environments are automatically destroyed when the associated merge request is + closed.
      2. +
    2. Each commit to main triggers an automated deployment to staging using a + static GitLab environment.
      3. +
    3. Each commit to main also creates a job for an automated deployment to + production, also using a static environment. However this job requires a + manual trigger + before it will start.
      4. +
    +

    To get started, just copy .gitlab-ci.yml.sample to .gitlab-ci.yml and amend +the environment names and paths to match the environments in your configuration. +The next commit will begin to trigger deployments.

    +

    Access to secrets

    +

    In order for the deployment jobs to access the secrets +in your configuration, you will need to provide the +git-crypt key as a +CI/CD variable for the project. +The base64-encoded key should be stored in the GIT_CRYPT_KEY_B64 variable +and made available to all branches:

    +
    git-crypt export-key - | base64
+
    +

    Per-branch dynamic review environments

    +

    The per-branch dynamic review environments are special in that multiple GitLab +environments are provisioned using a single configuration environment. This means +that the configuration environment must be capable of producing multiple +independent deployments.

    +

    In particular, it cannot use any fixed floating IPs which also means no fixed DNS entry. +Instead it must allocate an IP for itself and use a dynamic DNS service like +sslip.io for the ingress domain. This is also how the +demo environment works, and is the default if no fixed IP is specified.

    +
    +

    Single node only

    +

    At present dynamic review environments must be single node deployments, as +HA deployments do not support dynamically allocating a floating IP for the Ingress +Controller.

    +

    A single node is likely to be sufficient for a dynamic review environment, as a full +HA deployment for every branch would consume a lot more resources. However you should +ensure that you have a full HA deployment as a staging or pre-production environment +in order to test that the configuration works.

    +
    +
    +

    Shared credentials

    +

    Per-branch dynamic review environments will share the clouds.yaml specified in the +configuration environment, and hence will share an OpenStack project.

    +

    This is not a problem, as multiple isolated deployments can happily coexist in the +same project as long as they have different names, but you must ensure that the +project has suitable quotas.

    +
    +
    +

    Activating per-branch review environments

    +

    Because a single configuration environment is used for multiple deployments, a slight +variant of the usual environment activation +must be used that specifies both the configuration environment and the GitLab environment +name:

    +
    source ./bin/activate "<configuration environment>" "<gitlab environment>"
+
    +
    +

    A configuration environment for dynamic review environments is set up +in the usual way, subject to the caveats above. The +following is a minimal set of Ansible variables that will work for most clouds, when +combined with the base and singlenode mixin environments (plus any site-specific +mixin environments):

    +
    # Configuration for the K3S node
+infra_external_network_id: "<network id>"
+infra_flavor_id: "<flavor id>"
+
+# CaaS configuration
+azimuth_caas_stackhpc_slurm_appliance_login_flavor_name: "<flavor name>"
+azimuth_caas_stackhpc_slurm_appliance_control_flavor_name: "<flavor name>"
+
+# Azimuth cloud name
+#   This can use the environment name if desired, e.g.:
+azimuth_current_cloud_name: "{{ lookup('env', 'CI_ENVIRONMENT_SLUG') }}"
+azimuth_current_cloud_label: "{{ lookup('env', 'CI_ENVIRONMENT_NAME') }}"
+
+# "Secrets"
+#   Since the dynamic environments are short-lived, there is not much
+#   risk in using secrets that are not really secret for ease
+harbor_admin_password: admin
+harbor_secret_key: notsecret0123456
+zenith_registrar_subdomain_token_signing_key: notsecret
+azimuth_secret_key: notsecret
+
    +

    Automated synchronisation of upstream changes

    +

    The sample configuration also includes a job that can automatically +synchronise changes from upstream.

    +

    If the job detects changes, it will create a new branch, merge the changes +into it and create an associated +merge request. +If you also have +per-branch dynamic review environments +enabled, then this will automatically trigger a job to deploy the changes for review.

    +

    The job will only run for a +scheduled pipeline, so +if you want to have automatic synchronisation of upstream changes you must +add a pipeline schedule +for the main branch of your configuration repository with a suitable interval +(e.g. daily or weekly).

    +

    Because the job needs to write to the repository and call the merge requests API, +the CI/CD job token is not +sufficient. Instead, you must set the CI/CD variables GITLAB_PAT_TOKEN and +GITLAB_PAT_USERNAME for the scheduled pipeline, which should contain an access +token and the corresponding username respectively. The token must have permission +to write to the repository and the GitLab API.

    +

    If your GitLab project has +Project access tokens +available, then one of these can be used by specifying the associated +bot user. +Unfortunately, this is a paid feature and the only real alternative is to use a +Personal access token.

    +
    +

    Danger

    +

    Personal access tokens cannot be scoped to a project.

    +

    Uploading a personal access token as a CI/CD variable means that other members +of the project, and the CI/CD jobs that use it, will be able to see your token. +Because of the lack of project scope, this means that a malicious actor may be +able to obtain the token and use it to access your other projects.

    +

    If you do not want to pay for Project access tokens, then you could register a +separate service account that only belongs to your configuration project and +issue a personal access token from that account instead.

    +
    +

    GitHub CI/CD

    +

    For site-specific configuration repositories hosted on GitHub, azimuth-config provides two sample workflows +for automated deployments to a test or staging environment +(example workflow) +and manually-triggered deployment to a production environment +(example workflow). +These can be used with GitHub Actions to mimic some of the GitLab +functionality described above. Each sample file contains a top-level comment describing how to tailor these +workflows to a site-specific configuration repository.

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/deployment/index.html b/deployment/index.html new file mode 100644 index 00000000..1520efa2 --- /dev/null +++ b/deployment/index.html @@ -0,0 +1,1094 @@ + + + + + + + + + + + + + + + + Deploying Azimuth - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Deploying Azimuth

    +

    Python dependencies

    +

    The Python requirements for an Azimuth deployment host, including Ansible itself, +are contained in +requirements.txt +and must be installed before you can proceed with a deployment. It is recommended +to use a virtual environment in order +to keep the dependencies isolated from other Python applications on the host.

    +

    azimuth-config includes a utility script that will create a Python virtual +environment in the configuration directory and install the required dependencies:

    +
    ./bin/ensure-venv
+
    +

    If it exists, this virtual environment will be activated as part of the environment +activation (see below).

    +

    If you prefer to manage your own virtual environments then you must ensure that +the correct environment is activated and has the required dependencies installed +before continuing. For example, if you use pyenv +you can set the PYENV_VERSION environment variable +in your azimuth-config environment:

    +
    env
    PYENV_VERSION=azimuth-config
+
    +

    Activating an environment

    +

    Before you can deploy Azimuth, you must first activate an environment:

    +
    source ./bin/activate my-site
+
    +
    +

    Warning

    +

    This script must be sourced rather than just executed as it exports +environment variables into the current shell that are used to configure +the deployment.

    +
    +

    Deploying an environment

    +

    Once you are happy with any configuration changes and the environment that +you want to deploy to has been activated, run the following command to +deploy Azimuth:

    +
    # Install or update Ansible dependencies
+ansible-galaxy install -f -r ./requirements.yml
+
+# Run the provision playbook from the azimuth-ops collection
+# The inventory is picked up from the ansible.cfg file in the environment
+ansible-playbook stackhpc.azimuth_ops.provision
+
    +

    Tearing down an environment

    +

    azimuth-ops is also able to tear down an Azimuth environment, including the +K3S and HA Kubernetes clusters as required.

    +

    After activating the environment that you want to tear down, run the following:

    +
    ansible-playbook stackhpc.azimuth_ops.destroy
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
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    + + + + + + + + \ No newline at end of file diff --git a/developing/index.html b/developing/index.html new file mode 100644 index 00000000..c644a50b --- /dev/null +++ b/developing/index.html @@ -0,0 +1,1208 @@ + + + + + + + + + + + + + + + + Developing Azimuth - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + + + +

    Developing Azimuth

    +

    An Azimuth deployment consists of several interdependent components, some of which are +Azimuth-specific and some of which are third-party components. Plugging code under +development into such a system can be tricky, making development difficult and slow.

    +

    Developing Azimuth components

    +

    Azimuth has a number of components, mostly written in Python:

    + +

    It is useful to develop these components in the context of a running Azimuth installation, +as they have dependencies on each other.

    +

    To enable this, Azimuth uses Tilt to provide a developer environment +where code under development is automatically built and injected into a live system that +you can interact with. Tilt provides a dashboard that can be used to drill down into +build failures and the logs of the components under development.

    +

    Azimuth in Tilt

    +

    Prerequisites

    +

    In order to use Tilt to develop Azimuth, the following tools must be available on your +development machine (in addition to those required to install Azimuth itself):

    + +

    For developing the Azimuth UI, the following are also required:

    + +

    Deploying a dev instance

    +

    To use Tilt for developing Azimuth components, you first need a running Azimuth instance.

    +

    Each developer should have their own independent instance of Azimuth as Tilt will make +changes to the running Azimuth components, based on the code under development, that may +disrupt or break things for others.

    +
    +

    Tip

    +

    A single node deployment, e.g. a demo deployment, is sufficient for developing +the Azimuth components.

    +

    You may wish to maintain a development environment containing +site-specific customisations.

    +
    +

    The following instructions assume that your Azimuth configuration contains a developer environment +called dev. It is assumed that you have your Azimuth configuration checked out and that you have +an application credential +for the target cloud.

    +

    To stand up your developer-specific Azimuth instance, using the dev environment, use the +following:

    +
    # Set OpenStack configuration variables
+export OS_CLOUD=openstack
+export OS_CLIENT_CONFIG_FILE=/path/to/clouds.yaml
+
+# Activate the dev config environment with a specific instance name
+#
+# This means that resources created for the instance will not collide
+# with other deployments that use the dev environment
+source ./bin/activate dev jbloggs-dev
+
+# Install Azimuth as usual
+ansible-galaxy install -f -r requirements.yml
+ansible-playbook stackhpc.azimuth_ops.provision
+
    +

    Configuring a container registry

    +

    Azimuth's Tilt configuration looks for a file called tilt-settings.yaml that defines settings +for the development environment. This file is specific to you and should not be added to version +control (it is specified in .gitignore).

    +

    In order to get the code under development into your running Azimuth instance, Tilt must have +access to a container registry that is accessible to both your development machine and the +Azimuth instance. In response to code changes, Tilt will automatically build and push images +to this registry and then configure the Azimuth instance to use them.

    +

    To configure the prefix for images built by Tilt, use the following setting:

    +
    tilt-settings.yaml
    # Images will be pushed to:
+#   ghcr.io/jbloggs/azimuth-api
+#   ghcr.io/jbloggs/azimuth-ui
+#   ghcr.io/jbloggs/azimuth-caas-operator
+#   ...
+image_prefix: ghcr.io/jbloggs
+
    +
    +

    Tip

    +

    A good candidate for this is to use GitHub Packages +with your user account, as in the example above. This means that development builds do not +require access to or clutter up the production repositories.

    +

    When using GitHub Packages, the repositories that are created by Tilt when it builds images +for the first time will be private. You must log into GitHub and make them public before +your Azimuth instance can use them. Until you do this, you will see image pull errors in +the Tilt interface.

    +
    +

    Using the Tilt environment

    +

    Tilt will look for checkouts of Azimuth components as siblings of your Azimuth configuration +and include them in your development environment. For example, the following directory structure +will result in a development environment where changes to the Azimuth API, UI and CaaS operators +are built and pushed into your development Azimuth instance for testing:

    +
    .
+├── azimuth
+│   ├── api
+│   ├── chart
+│   ├── ui
+│   └── ...
+├── azimuth-caas-operator
+│   ├── Dockerfile
+│   ├── azimuth_caas_operator
+│   ├── charts
+│   └── ...
+└── myorg-azimuth-config
+    ├── Tiltfile
+    ├── bin
+    ├── environments
+    ├── tilt-settings.yaml
+    └── ...
+
    +

    If you wish to prevent a particular component being included in your development environment, +even if the checkout exists as a sibling, you can configure this using the enabled flag for +the component in tilt-settings.yaml. For example, the following would prevent the CaaS +operator from being included in the development environment, even with the directory structure +above:

    +
    tilt-settings.yaml
    components:
+  azimuth-caas-operator:
+    enabled: false
+
    +

    Once you have checked out all of the components that you want to develop, you can start the +development environment using:

    +
    ./bin/tilt-up
+
    +

    This will configure Tilt to connect to your Azimuth instance and begin watching your local +checkouts for changes. When a change is detected, Tilt will build and push an image for the +component before reconfiguring the Helm release for the component to point to the new image. +Once this process is complete, you can interact with your changes using the Azimuth UI for +your instance.

    +
    +

    Tip

    +

    Press the space bar to launch the Tilt user interface.

    +
    +

    When the tilt-up command is terminated, all of the Helm releases for the components that +were under development are rolled back to the version that was running before the command +was started.

    +

    Local UI development

    +

    Because of how the user interface is optimised for production, the container image build for +the Azimuth UI is very slow even for a minor change. Because of this, the usual Tilt flow of +build/push/deploy is not suitable for UI development.

    +

    To improve the feedback cycle for UI development, the Azimuth Tilt environment also builds +and runs the Azimuth UI locally using the +webpack DevServer. The UI communicates +with the Azimuth API on your Azimuth dev instance using a forwarded port (this is necessary +in order for the cookie-based authentication to work properly).

    +

    The local version of the UI is available at http://localhost:3000.

    +
    +

    Note

    +

    The UI container image is still built, pushed and deployed in the background. +However changes made to the JS files will be visible in the local version much faster.

    +
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/developing/tilt-interface.png b/developing/tilt-interface.png new file mode 100644 index 00000000..46434caa Binary files /dev/null and b/developing/tilt-interface.png differ diff --git a/environments/index.html b/environments/index.html new file mode 100644 index 00000000..b9c42366 --- /dev/null +++ b/environments/index.html @@ -0,0 +1,1158 @@ + + + + + + + + + + + + + + + + Environments - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Environments

    +

    An Azimuth configuration repository is structured as multiple "environments" that can be +composed. Some of these environments are "concrete", meaning that they provide enough +information to make a deployment (e.g. development, staging, production), and some are +"mixin" environments providing common configuration that can be incorporated into concrete +environments using +Ansible's support for multiple inventories.

    +

    A concrete environment must be "activated" before any operations can be performed.

    +

    Environments live in the environments directory of your configuration repository. A mixin +environment contains only group_vars files and an empty hosts file (so that Ansible treats +it as an inventory). A concrete environment must contain an ansible.cfg file defining the +"layering" of inventories and a clouds.yaml file containing an +OpenStack Application Credential +for the project into which Azimuth will be deployed.

    +

    Using mixin environments

    +

    The following fragment demonstrates how to layer inventories in the ansible.cfg file for +a highly-available (HA) deployment:

    +
    ansible.cfg
    [defaults]
+inventory = ../base/inventory,../ha/inventory,./inventory
+
    +

    For a single node deployment, replace the ha environment with singlenode.

    +
    +

    Tip

    +

    If the same variable is defined in multiple inventories, the right-most inventory takes precedence.

    +
    +

    Available mixin environments

    +

    The following mixin environments are provided and maintained in this repository, and should +be used as the basis for your concrete environments:

    +
    +
    base
    +
    Contains the core configuration required to enable an environment and sets defaults.
    +
    ha
    +
    Contains overrides that are specific to an HA deployment.
    +
    singlenode
    +
    Contains overrides that are specific to a single-node deployment.
    +
    +

    By keeping the azimuth-config repository as an upstream of your site configuration repository, +you can rebase onto or merge the latest configuration to pick up changes to these mixins.

    +

    The azimuth-config repository contains an example of a concrete environment in +environments/example +that should be used as a basis for your own concrete environment(s).

    +

    Depending how many concrete environments you have, you may wish to define mixin environments +containing site-specific information that is common to several concrete environments, e.g. image +and flavor IDs or the location of an ACME server.

    +

    A typical layering of inventories might be:

    +
    base -> singlenode -> site -> development
+base -> ha -> site -> staging
+base -> ha -> site -> production
+
    +

    Linux environment variables

    +

    azimuth-config environments are able to define Linux environment variables that are exported +into the current shell when the environment is activated. This is accomplished by using +statements of the form:

    +
    env
    MY_VAR="some value"
+
    +

    The +azimuth-config activate script +exports environment variables defined in the following files:

    +
    +
    env and env.secret
    +
    Contain environment variables that are common across all environments.
    +
    environments/<env name>/env and environments/<env name>/env.secret
    +
    Contain environment variables that are specific to the environment.
    +
    +

    In both cases, environment variables whose values should be kept private should be placed in +the env.secret variant and should be encrypted.

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
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    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/index.html b/index.html new file mode 100644 index 00000000..1be7d535 --- /dev/null +++ b/index.html @@ -0,0 +1,1106 @@ + + + + + + + + + + + + + + + + Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + + + +

    Azimuth Operator Documentation

    +

    This documentation describes how to manage deployments of +Azimuth, including all the required dependencies.

    +

    Azimuth is deployed using Ansible with playbooks from the +azimuth-ops Ansible collection, +driven by configuration derived from the +azimuth-config reference configuration.

    +

    The azimuth-config repository is designed to be forked for a specific site and is structured +into multiple environments. This structure allows common configuration to be +shared but overridden where required using composition of environments.

    +

    Structure of an Azimuth deployment

    +

    A fully-featured Azimuth deployment consists of many components, such as +Zenith, Cluster API +and the CaaS operator, which +require a Kubernetes cluster to run.

    +

    However when you consider an Azimuth deployment as a whole, the only real dependency is +an OpenStack cloud to target - we can create a Kubernetes +cluster within an OpenStack project on the target cloud to host our Azimuth deployment. +This is exactly what the playbooks in the azimuth-ops collection will do, when driven by +a configuration derived from azimuth-config.

    +

    There are two methods that azimuth-ops can use to deploy Azimuth and all of its +dependencies:

    +
      +
    1. Onto a managed single-node K3S cluster in an OpenStack project.
      2. +
    2. Onto a managed highly-available Kubernetes cluster in an OpenStack project.
      3. +
    +

    Option 1 is useful for development or demo deployments, but is not suitable for a production +deployment.

    +

    Option 2 is the recommended deployment mechanism for most deployments. In this mode, +Terraform is used to provision a single-node K3S cluster +that is configured as a Cluster API management +cluster. Cluster API is then used to provision a highly-available Kubernetes cluster in +the same OpenStack project onto which Azimuth is deployed.

    +
    +

    Warning

    +

    Option 2 requires that Octavia +is available on the target cloud to provide load-balancers for Azimuth components.

    +
    +

    Deploying Azimuth

    +

    To try out Azimuth on your OpenStack cloud, you can follow these instructions +to get a simple single-node deployment.

    +

    For a production-ready deployment, you should follow the steps in the +best practice document.

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/repository/index.html b/repository/index.html new file mode 100644 index 00000000..c49718a8 --- /dev/null +++ b/repository/index.html @@ -0,0 +1,1156 @@ + + + + + + + + + + + + + + + + Azimuth configuration repository - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + +
    +
    + + + + +

    Azimuth configuration repository

    +

    The azimuth-config repository provides best-practice configuration for Azimuth deployments +that can be inherited by site-specific configuration repositories using +Git. Using Git makes it easy to pick up new Azimuth releases when +they become available.

    +

    Initial repository setup

    +

    First make an empty Git repository using your service of choice (e.g. +GitHub or GitLab), then execute the +following commands to turn the new empty repository into a copy of the azimuth-config +repository:

    +
    # Clone the azimuth-config repository
+git clone https://github.com/stackhpc/azimuth-config.git my-azimuth-config
+cd my-azimuth-config
+
+# Maintain the existing origin remote as upstream
+git remote rename origin upstream
+
+# Create a new origin remote for the repository location
+git remote add origin git@<repo location>/my-azimuth-config.git
+
+# Checkout stable to get the latest release
+git checkout stable
+
+# Create a new main branch from stable
+# This will be the branch that is deployed into production
+git checkout -b main
+
+# Push the main branch to the origin
+git push --set-upstream origin main
+
    +

    You now have an independent copy of the azimuth-config repository that has a link back +to the source repository via the upstream remote.

    +
    +

    Branch protection rules

    +

    It is a good idea to apply branch protection rules to the main branch that enforce +that all changes are made via a merge (or pull) request. This should ensure that changes +are not accidentally pushed into production without being reviewed.

    +

    Instructions are available on how to set this up for +GitHub or +GitLab.

    +
    +

    Creating a new environment

    +

    Your new repository does not yet contain any site-specific configuration. The best way +to do this is to copy the example environment as a starting point:

    +
    cp -r ./environments/example ./environments/my-site
+
    +
    +

    Tip

    +

    Copying the example environment, rather than just renaming it, avoids conflicts +when synchronising changes from the azimuth-config repository where the example +environment has changed.

    +
    +

    Once you have your new environment, you can make the required changes for your site.

    +

    As you make changes to your environment, remember to commit and push them regularly:

    +
    git add ./environments/my-site
+git commit -m "Made some changes to my environment"
+git push
+
    +

    Making changes to your configuration

    +

    Once you have an environment deployed, it is recommended to use a +feature branch workflow +when making changes to your configuration repository.

    +
    +

    Automated deployments

    +

    The feature branch workflow works particularly well when you use a +continuous delivery approach to automate deployments.

    +
    +

    In this workflow, the required changes are made on a branch in the configuration repository. +Once you are happy with the changes, you create a merge (or pull) request proposing the +changes to main. These changes can then be reviewed before being merged to main.

    +

    If you have automated deployments, the branch may even get a dynamic environment created +for it where the result of the changes can be verified before the merge takes place.

    +

    Upgrading to a new Azimuth release

    +

    When a new Azimuth release becomes available, you will need to synchronise the changes +from azimuth-config into your site configuration repository in order to pick up new +component versions, upgraded dependencies and new images.

    +
    +

    Choosing a release

    +

    The available releases, with associated release notes, can be reviewed on the +Azimuth releases page.

    +
    +

    To upgrade your Azimuth configuration to a new release, use the following steps to create +a new branch containing the upgrade:

    +
    # Make sure the local checkout is up to date with any site-specific changes
+git checkout main
+git pull
+
+# Fetch the tags from the upstream repo
+git remote update
+
+# Create a new branch to contain the Azimuth upgrade
+git checkout -b upgrade/$RELEASE_TAG
+
+# Merge in the tag for the new release
+git merge $RELEASE_TAG
+
    +

    At this point, you will need to fix any conflicts where you have made changes to the same +files that have been changed by azimuth-config.

    +
    +

    Avoiding conflicts

    +

    To avoid conflicts, you should never directly modify any files that come from +azimuth-config - instead you should use the environment layering to override +variables where required, and copy files if necessary.

    +
    +

    Once any conflicts have been resolved, you can commit and push the changes:

    +
    git commit -m "Upgrade Azimuth to $RELEASE_TAG"
+git push --set-upstream origin upgrade/$RELEASE_TAG
+
    +

    You can now open a merge (or pull) request proposing the upgrade to your main branch +that can be reviewed like any other.

    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/repository/secrets/index.html b/repository/secrets/index.html new file mode 100644 index 00000000..0df56d19 --- /dev/null +++ b/repository/secrets/index.html @@ -0,0 +1,1216 @@ + + + + + + + + + + + + + + + + Managing secrets - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Managing secrets

    +

    Each Azimuth environment contains a small number of files and variable values that +must be kept secret. However we would also like to have these files and variables +in version control so that we can track when they have changed and share them with +others in our team.

    +

    The way to achieve both these goals is to encrypt the secrets when at rest in the +Git repository. For an Azimuth configuration repository, the recommended method for +doing this is using git-crypt.

    +

    git-crypt provides transparent encryption and decryption of files in a Git repository +using Git filters. This +allows for a mix of encrypted and unencrypted content in the same repository, which is +exactly what we want for an Azimuth configuration.

    +

    By encrypting files when they are committed and decrypting them when they are checked +out, git-crypt allows you to work as if the encryption is not present while being +confident that your secrets remain private. Team members can also work on the public +parts of the repository without decrypting the private parts if you wish to maintain +separation of privilege.

    +

    git-crypt works on entire files, not at the variable level, so it is recommended +that encrypted files contain only secret values so that information is not hidden +unnecessarily. To this end, a typical azimuth-config environment for a site will +have one or more group_vars files in the inventory that are unencrypted, but +secret values will be placed in a secrets.yaml that is encrypted.

    +

    Initialising git-crypt

    +

    To initialise git-crypt for your config repository, first make sure that the CLI +is installed. This can be installed using the package manager on most major Linux +operating systems, using Homebrew on Mac OSX or by +building from source.

    +

    Then execute the following command to begin encrypting files:

    +
    git-crypt init
+
    +
    +

    Danger

    +

    If you lose access to the key that git-crypt generates to encrypt your repository, +you will be locked out of the repository for good.

    +

    It is recommended that you export the key (see below) and store it somewhere +safe, e.g. in your organisation's secret store.

    +
    +

    Verifying which files are encrypted

    +

    azimuth-config contains a .gitattributes file that ensures all clouds.yaml, +secrets.yaml, env.secret and TLS key files in the repository will be encrypted (except those +for the example environment). If required, you can add additional patterns to the +file to encrypt other files.

    +

    You can check the files that git-crypt is encrypting using the following command:

    +
    git-crypt status -e
+
    +

    Granting access to others

    +

    As mentioned above, team members can work on the public parts of the repository +without decrypting the encrypted files. However in order to make a deployment, the +secrets must be decrypted - git-crypt refers to this process as "unlocking".

    +

    Using a shared secret key

    +

    The simplest way to grant access to the encrypted files in a repository is by sharing +the secret key generated by git-crypt. The key is binary, so the best way to share +the key is by base64-encoding it:

    +
    git-crypt export-key - | base64
+
    +

    To unlock the repository you must first clone it, then use the key to unlock it:

    +
    # Clone the repository
+git clone $REPOSITORY_URL
+
+# Move into the repository directory
+cd $REPOSITORY_DIR
+
+# Unlock it using the base64-encoded key
+echo $GIT_CRYPT_KEY_B64 | base64 -d | git-crypt unlock -
+
    +

    Using GPG keys

    +

    git-crypt is also able to grant access to the repository using +GPG keys. This avoids the use of shared secrets and makes it +explicit in the repository who has access.

    +

    A full discussion of the use of GPG is beyond the scope of this documentation, including +the generation of keys, as it differs substantially depending on your operating system.

    +

    To add a GPG key to your repository, use the following command:

    +
    git-crypt add-gpg-user USER_ID
+
    +

    where USER_ID is a key ID, a full fingerprint, an email address, or anything else that +uniquely identifies a public key to GPG.

    +

    You will then need to push the changes to the repository that encode the user's access:

    +
    git push
+
    +

    To unlock a repository using your GPG identity, just execute:

    +
    git-crypt unlock
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
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    +
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    + + + + + + + + \ No newline at end of file diff --git a/repository/terraform/index.html b/repository/terraform/index.html new file mode 100644 index 00000000..16a5140c --- /dev/null +++ b/repository/terraform/index.html @@ -0,0 +1,1299 @@ + + + + + + + + + + + + + + + + Terraform state - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + + + +

    Terraform state

    +

    azimuth-ops uses Terraform to manage the K3S node in both the +single node and high-availability deployment methods.

    +

    In order to keep track of the resources that it has created, and how they map to the resources +in the Terraform configuration generated by azimuth-ops, Terraform must +store its state somewhere. The location of the +state is determined by the +backend configuration.

    +

    Each environment in an azimuth-config repository has a corresponding Terraform state, and +they are independent from each other.

    +

    Local state

    +

    By default azimuth-ops will use the local backend, which stores the Terraform state as +a file on the local disk in the .work directory. This requires no explicit configuration, +but comes with the usual caveats about keeping important state on your local machine.

    +
    +

    Not suitable for production

    +

    Local state is sufficient for a demonstration or evaluation, but for a shared or +production deployment it is recommended to use remote state.

    +
    +

    Remote state

    +

    Terraform supports a number of remote backends that can be used to persist Terraform state +independently of where a deployment is run. This allows deployments to be made from anywhere +that can access the state without corrupting or conflicting with any existing resources +from previous deployments.

    +
    +

    Tip

    +

    If you want to use the same remote backend configuration for +multiple environments, consider using a site mixin environment +to avoid specifying the configuration multiple times.

    +
    +
    +

    Warning

    +

    In order to avoid multiple writers when using remote state, it is recommended to use +a backend that supports +state locking.

    +
    +
    +

    Secret configuration

    +

    Some of the configuration variables for remote backends, e.g. passwords and keys, +should be kept secret. If you want to keep such variables in Git - which is +recommended where possible - then they must be encrypted.

    +
    +

    GitLab

    +
    +

    Tip

    +

    This is the recommended option if you are using GitLab +for your config repository.

    +
    +

    If you are using GitLab to host your configuration repository, either gitlab.com or +self-hosted, you can use +GitLab-managed Terraform state +to store the Terraform state for your environments.

    +

    GitLab provides a HTTP backend that can be configured as follows:

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    terraform_backend_type: http
+
+# The API base URL for the target GitLab project
+#   For a self-hosted GitLab instance, replace gitlab.com with your domain
+gitlab_project_url: "https://gitlab.com/api/v4/projects/<project id>"
+
+# The state endpoint for the environment
+#
+# Using the azimuth_environment variable as the state name means that each
+# concrete environment gets a separate managed Terraform state even if this
+# configuration is in a shared mixin environment
+terraform_http_address: "{{ gitlab_project_url }}/terraform/state/{{ azimuth_environment }}"
+
+# The state-locking and unlocking endpoints for the environment
+terraform_http_lock_address: "{{ terraform_http_address }}/lock"
+terraform_http_lock_method: POST
+terraform_http_unlock_address: "{{ terraform_http_lock_address }}"
+terraform_http_unlock_method: DELETE
+
+terraform_backend_config:
+  address: "{{ terraform_http_address }}"
+  lock_address: "{{ terraform_http_lock_address }}"
+  lock_method: "{{ terraform_http_lock_method }}"
+  unlock_address: "{{ terraform_http_unlock_address }}"
+  unlock_method: "{{ terraform_http_unlock_method }}"
+
    +
    +

    Tip

    +

    If you want to use the same backend configuration for +multiple environments, consider using a site mixin environment +to avoid specifying the configuration multiple times.

    +
    +

    The username and password (or token) that are used to authenticate with GitLab to manage +the Terraform state are set using the TF_HTTP_USERNAME and TF_HTTP_PASSWORD environment +variables respectively.

    +

    If you are using GitLab CI/CD to automate deployments, +then the pipeline will be issued with a suitable token. The +sample configuration +includes configuration to populate these variables using this token.

    +

    If you are not using automation but your GitLab installation has +project access tokens +available, you can configure a project access token and store it (encrypted!) in the +env.secret file, referencing the bot username:

    +
    env.secret
    TF_HTTP_USERNAME="project_<id>_bot"
+TF_HTTP_PASSWORD="<project access token>"
+
    +

    If you need to access an environment deployed using automation, or you do not have project +access tokens available, then you can use a +Personal access token, +which at least avoids using your password.

    +
    +

    Never commit personal access tokens

    +

    You should never commit a personal access token to the configuration repository, +even encrypted, because it is not possible to set a project scope.

    +
    +

    If using a personal access token, you should export the relevant variables before activating +an environment:

    +
    export TF_HTTP_USERNAME="<username>"
+export TF_HTTP_PASSWORD="<token>"
+
+source ./bin/activate my-site
+
    +

    S3

    +

    Terraform also has an S3 backend that +is able to store state in any S3-compatible object store, such as +Amazon S3 or +Ceph Object Gateway.

    +

    Depending on the provider of your object store, the specific configuration options +in the following section may differ. The example configuration shown here is for a Ceph +object store as Ceph is often used together with OpenStack.

    +

    See the Terraform docs for the S3 backend +for all the available options.

    +
    environments/my-site/inventory/group_vars/all/variables.yml
    terraform_backend_type: s3
+
+# The endpoint of the object store
+terraform_s3_endpoint: object.example.com
+
+# The region to use
+# Ceph does not normally use the region, but Terraform requires it
+terraform_s3_region: not-used-but-required
+terraform_s3_skip_region_validation: "true"
+
+# The bucket to put Terraform states in
+# NOTE: This bucket must already exist - it will not be created by Terraform
+terraform_s3_bucket: azimuth-terraform-states
+
+# The key to use for the state for the environment
+#
+# Using the azimuth_environment variable in the key means that the state
+# for each concrete environment is stored in a separate key, even if this
+# configuration is in a shared mixin environment
+terraform_s3_key: "{{ azimuth_environment }}.tfstate"
+
+# The STS API doesn't exist for Ceph
+terraform_s3_skip_credentials_validation: "true"
+
+# Tell Terraform to use path-style URLs, e.g. <host>/<bucket>, instead of
+# subdomain-style URLs, e.g. <bucket>.<host>
+terraform_s3_force_path_style: "true"
+
+terraform_backend_config:
+  endpoint: "{{ terraform_s3_endpoint }}"
+  region: "{{ terraform_s3_region }}"
+  bucket: "{{ terraform_s3_bucket }}"
+  key: "{{ terraform_s3_key }}"
+  skip_credentials_validation: "{{ terraform_s3_skip_credentials_validation }}"
+  force_path_style: "{{ terraform_s3_force_path_style }}"
+  skip_region_validation: "{{ terraform_s3_skip_region_validation }}"  
+
    +

    The S3 credentials (access key ID and secret), can be specified either as +environment variables or +as Ansible variables.

    +

    To use environment variables, just place the credentials in env.secret:

    +
    env.secret
    AWS_ACCESS_KEY_ID="<access key id>"
+AWS_SECRET_ACCESS_KEY="<secret key>"
+
    +

    To use Ansible variables, they should be added to secrets.yml and referenced in +the terraform_backend_config variable:

    +
    environments/my-site/inventory/group_vars/all/secrets.yml
    terraform_s3_access_key: "<access key id>"
+terraform_s3_secret_key: "<secret key>"
+
    +
    environments/my-site/inventory/group_vars/all/variables.yml
    terraform_backend_config:
+  # ... other options ...
+  access_key: "{{ terraform_s3_access_key }}"
+  secret_key: "{{ terraform_s3_secret_key }}"
+
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file diff --git a/search/search_index.json b/search/search_index.json new file mode 100644 index 00000000..5dfa5ed9 --- /dev/null +++ b/search/search_index.json @@ -0,0 +1 @@ +{"config":{"indexing":"full","lang":["en"],"min_search_length":3,"prebuild_index":false,"separator":"[\\s\\-]+"},"docs":[{"location":"","text":"Azimuth Operator Documentation This documentation describes how to manage deployments of Azimuth , including all the required dependencies. Azimuth is deployed using Ansible with playbooks from the azimuth-ops Ansible collection , driven by configuration derived from the azimuth-config reference configuration . The azimuth-config repository is designed to be forked for a specific site and is structured into multiple environments . This structure allows common configuration to be shared but overridden where required using composition of environments. Structure of an Azimuth deployment A fully-featured Azimuth deployment consists of many components, such as Zenith , Cluster API and the CaaS operator , which require a Kubernetes cluster to run. However when you consider an Azimuth deployment as a whole, the only real dependency is an OpenStack cloud to target - we can create a Kubernetes cluster within an OpenStack project on the target cloud to host our Azimuth deployment. This is exactly what the playbooks in the azimuth-ops collection will do, when driven by a configuration derived from azimuth-config . There are two methods that azimuth-ops can use to deploy Azimuth and all of its dependencies: Onto a managed single-node K3S cluster in an OpenStack project. Onto a managed highly-available Kubernetes cluster in an OpenStack project. Option 1 is useful for development or demo deployments, but is not suitable for a production deployment. Option 2 is the recommended deployment mechanism for most deployments. In this mode, Terraform is used to provision a single-node K3S cluster that is configured as a Cluster API management cluster. Cluster API is then used to provision a highly-available Kubernetes cluster in the same OpenStack project onto which Azimuth is deployed. Warning Option 2 requires that Octavia is available on the target cloud to provide load-balancers for Azimuth components. Deploying Azimuth To try out Azimuth on your OpenStack cloud, you can follow these instructions to get a simple single-node deployment. For a production-ready deployment, you should follow the steps in the best practice document .","title":"Home"},{"location":"#azimuth-operator-documentation","text":"This documentation describes how to manage deployments of Azimuth , including all the required dependencies. Azimuth is deployed using Ansible with playbooks from the azimuth-ops Ansible collection , driven by configuration derived from the azimuth-config reference configuration . The azimuth-config repository is designed to be forked for a specific site and is structured into multiple environments . This structure allows common configuration to be shared but overridden where required using composition of environments.","title":"Azimuth Operator Documentation"},{"location":"#structure-of-an-azimuth-deployment","text":"A fully-featured Azimuth deployment consists of many components, such as Zenith , Cluster API and the CaaS operator , which require a Kubernetes cluster to run. However when you consider an Azimuth deployment as a whole, the only real dependency is an OpenStack cloud to target - we can create a Kubernetes cluster within an OpenStack project on the target cloud to host our Azimuth deployment. This is exactly what the playbooks in the azimuth-ops collection will do, when driven by a configuration derived from azimuth-config . There are two methods that azimuth-ops can use to deploy Azimuth and all of its dependencies: Onto a managed single-node K3S cluster in an OpenStack project. Onto a managed highly-available Kubernetes cluster in an OpenStack project. Option 1 is useful for development or demo deployments, but is not suitable for a production deployment. Option 2 is the recommended deployment mechanism for most deployments. In this mode, Terraform is used to provision a single-node K3S cluster that is configured as a Cluster API management cluster. Cluster API is then used to provision a highly-available Kubernetes cluster in the same OpenStack project onto which Azimuth is deployed. Warning Option 2 requires that Octavia is available on the target cloud to provide load-balancers for Azimuth components.","title":"Structure of an Azimuth deployment"},{"location":"#deploying-azimuth","text":"To try out Azimuth on your OpenStack cloud, you can follow these instructions to get a simple single-node deployment. For a production-ready deployment, you should follow the steps in the best practice document .","title":"Deploying Azimuth"},{"location":"best-practice/","text":"Best practice for deployments This document guides you through the process of setting up a production-ready Azimuth deployment following recommended best practice. Prerequisites Before proceeding with an Azimuth deployment, you should ensure that the target cloud meets the prerequisites . OpenStack projects Azimuth is usually deployed on the cloud that is being targeted for workloads. It is recommended to have three OpenStack projects for a production Azimuth deployment, to contain: A highly-available (HA) production deployment, e.g. azimuth-production A HA staging deployment, e.g. azimuth-staging All-in-one (AIO) deployments for validating changes, e.g. azimuth-cicd The production and staging projects must have sufficient quota for a HA Azimuth deployment. The required quota in the CI/CD project will depend on the number of proposed changes that are open concurrently. Repository Before building your Azimuth configuration, you must first set up your configuration repository , including initialising git-crypt for encrypting secrets . It is recommended to use a feature branch workflow to make changes to your Azimuth configuration in a controlled way. Terraform state Azimuth deployments use Terraform to manage some parts of the infrastructure. A Terraform remote state store must be configured in order to persist the Terraform state across playbook executions. If GitLab is being used for the repository, it is recommended to use GitLab-managed Terraform state . If not, S3 is the preferred approach. Environments An Azimuth configuration repository contains multiple environments , some of which contain common configuration (\"mixin\" environments), and some of which represent a deployment (\"concrete\" environments). For a production deployment of Azimuth, there should be at least two concrete environments that are deployed from the main branch: production - the Azimuth deployment that is provided to end users staging - used to validate changes before pushing to production Both of these environments should be highly-available deployments, in order to fully test the upgrade process. It is recommended to have a single node aio environment that also follows the production environment as closely as possible. This can be used for testing changes to the configuration before they are merged to main . In order for validation in the aio and staging environments to be meaningful, the configuration of these environments should be as similar to production as possible. To do this, two site-specific mixins should be used: site - contains configuration that is common between aio , staging and production , e.g. enabled features, available platforms site-ha - contains configuration for the HA setup that is common between staging and production The environments would then be layered as follows: base --> singlenode --> site --> aio base --> ha --> site --> site-ha --> staging base --> ha --> site --> site-ha --> production with only necessary differences configured in each environment, e.g. the ingress base domain, between staging and production . Continuous delivery A production Azimuth deployment should use continuous delivery , where changes to the configuration are automatically deployed to the aio and staging environments. The ansible-playbook command should never be executed manually. The recommended approach is to automatically deploy an independent aio environment for each feature branch, also known as per-branch dynamic review environments . This allows changes to be validated before they are merged to main . Once a change is merged to main , it will be deployed automatically to the staging environment. Merging to main will also create a job to deploy to production , but that job will require a manual trigger. Once the change has been validated in staging , the job to deploy to production can be actioned. A sample GitLab CI/CD configuration is provided that implements this workflow for GitLab-hosted repositories. Disaster recovery Azimuth uses Velero to backup the data that is required to restore an Azimuth instance in the event of a catastrophic failure. This functionality is not enabled by default, as it requires credentials for an S3 bucket in which the backups will be stored. It is recommended that disaster recovery is enabled for a production deployment. Configuration You are now ready to begin adding configuration to your environments. When building an environment for the first time, it is recommended to follow each documentation page in order, beginning with the Deployment method .","title":"Best practice for deployments"},{"location":"best-practice/#best-practice-for-deployments","text":"This document guides you through the process of setting up a production-ready Azimuth deployment following recommended best practice.","title":"Best practice for deployments"},{"location":"best-practice/#prerequisites","text":"Before proceeding with an Azimuth deployment, you should ensure that the target cloud meets the prerequisites .","title":"Prerequisites"},{"location":"best-practice/#openstack-projects","text":"Azimuth is usually deployed on the cloud that is being targeted for workloads. It is recommended to have three OpenStack projects for a production Azimuth deployment, to contain: A highly-available (HA) production deployment, e.g. azimuth-production A HA staging deployment, e.g. azimuth-staging All-in-one (AIO) deployments for validating changes, e.g. azimuth-cicd The production and staging projects must have sufficient quota for a HA Azimuth deployment. The required quota in the CI/CD project will depend on the number of proposed changes that are open concurrently.","title":"OpenStack projects"},{"location":"best-practice/#repository","text":"Before building your Azimuth configuration, you must first set up your configuration repository , including initialising git-crypt for encrypting secrets . It is recommended to use a feature branch workflow to make changes to your Azimuth configuration in a controlled way.","title":"Repository"},{"location":"best-practice/#terraform-state","text":"Azimuth deployments use Terraform to manage some parts of the infrastructure. A Terraform remote state store must be configured in order to persist the Terraform state across playbook executions. If GitLab is being used for the repository, it is recommended to use GitLab-managed Terraform state . If not, S3 is the preferred approach.","title":"Terraform state"},{"location":"best-practice/#environments","text":"An Azimuth configuration repository contains multiple environments , some of which contain common configuration (\"mixin\" environments), and some of which represent a deployment (\"concrete\" environments). For a production deployment of Azimuth, there should be at least two concrete environments that are deployed from the main branch: production - the Azimuth deployment that is provided to end users staging - used to validate changes before pushing to production Both of these environments should be highly-available deployments, in order to fully test the upgrade process. It is recommended to have a single node aio environment that also follows the production environment as closely as possible. This can be used for testing changes to the configuration before they are merged to main . In order for validation in the aio and staging environments to be meaningful, the configuration of these environments should be as similar to production as possible. To do this, two site-specific mixins should be used: site - contains configuration that is common between aio , staging and production , e.g. enabled features, available platforms site-ha - contains configuration for the HA setup that is common between staging and production The environments would then be layered as follows: base --> singlenode --> site --> aio base --> ha --> site --> site-ha --> staging base --> ha --> site --> site-ha --> production with only necessary differences configured in each environment, e.g. the ingress base domain, between staging and production .","title":"Environments"},{"location":"best-practice/#continuous-delivery","text":"A production Azimuth deployment should use continuous delivery , where changes to the configuration are automatically deployed to the aio and staging environments. The ansible-playbook command should never be executed manually. The recommended approach is to automatically deploy an independent aio environment for each feature branch, also known as per-branch dynamic review environments . This allows changes to be validated before they are merged to main . Once a change is merged to main , it will be deployed automatically to the staging environment. Merging to main will also create a job to deploy to production , but that job will require a manual trigger. Once the change has been validated in staging , the job to deploy to production can be actioned. A sample GitLab CI/CD configuration is provided that implements this workflow for GitLab-hosted repositories.","title":"Continuous delivery"},{"location":"best-practice/#disaster-recovery","text":"Azimuth uses Velero to backup the data that is required to restore an Azimuth instance in the event of a catastrophic failure. This functionality is not enabled by default, as it requires credentials for an S3 bucket in which the backups will be stored. It is recommended that disaster recovery is enabled for a production deployment.","title":"Disaster recovery"},{"location":"best-practice/#configuration","text":"You are now ready to begin adding configuration to your environments. When building an environment for the first time, it is recommended to follow each documentation page in order, beginning with the Deployment method .","title":"Configuration"},{"location":"environments/","text":"Environments An Azimuth configuration repository is structured as multiple \"environments\" that can be composed. Some of these environments are \"concrete\", meaning that they provide enough information to make a deployment (e.g. development, staging, production), and some are \"mixin\" environments providing common configuration that can be incorporated into concrete environments using Ansible's support for multiple inventories . A concrete environment must be \"activated\" before any operations can be performed. Environments live in the environments directory of your configuration repository. A mixin environment contains only group_vars files and an empty hosts file (so that Ansible treats it as an inventory). A concrete environment must contain an ansible.cfg file defining the \"layering\" of inventories and a clouds.yaml file containing an OpenStack Application Credential for the project into which Azimuth will be deployed. Using mixin environments The following fragment demonstrates how to layer inventories in the ansible.cfg file for a highly-available (HA) deployment: ansible.cfg [defaults] inventory = ../base/inventory,../ha/inventory,./inventory For a single node deployment, replace the ha environment with singlenode . Tip If the same variable is defined in multiple inventories, the right-most inventory takes precedence. Available mixin environments The following mixin environments are provided and maintained in this repository, and should be used as the basis for your concrete environments: base Contains the core configuration required to enable an environment and sets defaults. ha Contains overrides that are specific to an HA deployment. singlenode Contains overrides that are specific to a single-node deployment. By keeping the azimuth-config repository as an upstream of your site configuration repository, you can rebase onto or merge the latest configuration to pick up changes to these mixins. The azimuth-config repository contains an example of a concrete environment in environments/example that should be used as a basis for your own concrete environment(s). Depending how many concrete environments you have, you may wish to define mixin environments containing site-specific information that is common to several concrete environments, e.g. image and flavor IDs or the location of an ACME server. A typical layering of inventories might be: base -> singlenode -> site -> development base -> ha -> site -> staging base -> ha -> site -> production Linux environment variables azimuth-config environments are able to define Linux environment variables that are exported into the current shell when the environment is activated. This is accomplished by using statements of the form: env MY_VAR = \"some value\" The azimuth-config activate script exports environment variables defined in the following files: env and env.secret Contain environment variables that are common across all environments. environments//env and environments//env.secret Contain environment variables that are specific to the environment. In both cases, environment variables whose values should be kept private should be placed in the env.secret variant and should be encrypted .","title":"Environments"},{"location":"environments/#environments","text":"An Azimuth configuration repository is structured as multiple \"environments\" that can be composed. Some of these environments are \"concrete\", meaning that they provide enough information to make a deployment (e.g. development, staging, production), and some are \"mixin\" environments providing common configuration that can be incorporated into concrete environments using Ansible's support for multiple inventories . A concrete environment must be \"activated\" before any operations can be performed. Environments live in the environments directory of your configuration repository. A mixin environment contains only group_vars files and an empty hosts file (so that Ansible treats it as an inventory). A concrete environment must contain an ansible.cfg file defining the \"layering\" of inventories and a clouds.yaml file containing an OpenStack Application Credential for the project into which Azimuth will be deployed.","title":"Environments"},{"location":"environments/#using-mixin-environments","text":"The following fragment demonstrates how to layer inventories in the ansible.cfg file for a highly-available (HA) deployment: ansible.cfg [defaults] inventory = ../base/inventory,../ha/inventory,./inventory For a single node deployment, replace the ha environment with singlenode . Tip If the same variable is defined in multiple inventories, the right-most inventory takes precedence.","title":"Using mixin environments"},{"location":"environments/#available-mixin-environments","text":"The following mixin environments are provided and maintained in this repository, and should be used as the basis for your concrete environments: base Contains the core configuration required to enable an environment and sets defaults. ha Contains overrides that are specific to an HA deployment. singlenode Contains overrides that are specific to a single-node deployment. By keeping the azimuth-config repository as an upstream of your site configuration repository, you can rebase onto or merge the latest configuration to pick up changes to these mixins. The azimuth-config repository contains an example of a concrete environment in environments/example that should be used as a basis for your own concrete environment(s). Depending how many concrete environments you have, you may wish to define mixin environments containing site-specific information that is common to several concrete environments, e.g. image and flavor IDs or the location of an ACME server. A typical layering of inventories might be: base -> singlenode -> site -> development base -> ha -> site -> staging base -> ha -> site -> production","title":"Available mixin environments"},{"location":"environments/#linux-environment-variables","text":"azimuth-config environments are able to define Linux environment variables that are exported into the current shell when the environment is activated. This is accomplished by using statements of the form: env MY_VAR = \"some value\" The azimuth-config activate script exports environment variables defined in the following files: env and env.secret Contain environment variables that are common across all environments. environments//env and environments//env.secret Contain environment variables that are specific to the environment. In both cases, environment variables whose values should be kept private should be placed in the env.secret variant and should be encrypted .","title":"Linux environment variables"},{"location":"try/","text":"Try Azimuth If you have access to a project on an OpenStack cloud, you can try Azimuth! The azimuth-config repository contains a special environment called demo that will provision a short-lived Azimuth deployment for demonstration purposes only . This environment attempts to infer all required configuration from the target OpenStack cloud - if this process is unsuccessful, an error will be produced. Danger Inferring configuration in the way that the demo environment does is not recommended as it is not guaranteed to produce the same result each time. For production deployments it is better to be explicit. To get started with a production deployment, see the best practice guide . Deploying a demo instance The Azimuth deployment requires a clouds.yaml to run. Ideally, this should be an Application Credential . Once you have a clouds.yaml , run the following to deploy the Azimuth demo environment: # Set OpenStack configuration variables export OS_CLOUD = openstack export OS_CLIENT_CONFIG_FILE = /path/to/clouds.yaml # Clone the azimuth-config repository git clone https://github.com/stackhpc/azimuth-config cd azimuth-config # Set up the virtual environment ./bin/ensure-venv # Activate the demo environment source ./bin/activate demo # Install Ansible dependencies ansible-galaxy install -f -r requirements.yml # Deploy Azimuth ansible-playbook stackhpc.azimuth_ops.provision The URL for the Azimuth UI is printed at the end of the playbook run. The credentials you use to authenticate with Azimuth are the same as you would use with the underlying OpenStack cloud. Warning Azimuth is deployed using Ansible, which does not support Windows as a controller . Azimuth deployment has been tested on Linux and macOS. Limitations The demo deployment has a number of limitations in order to give it the best chance of running on any given cloud: It uses the single node deployment method . Community images are uploaded as private images, so Azimuth will only be able to provision Kubernetes clusters and Cluster-as-a-Service appliances in the same project as it is deployed in. sslip.io is used to provide DNS. This avoids the need for a DNS entry to be provisioned in advance. TLS is disabled for ingress , allowing the Azimuth to work even when the deployment is not reachable from the internet ( outbound internet connectivity is still required). Verification of SSL certificates for the OpenStack API is disabled, allowing Azimuth to work even when the target cloud uses a custom CA. The deployment secrets are not secret , as they are stored in plain text in the azimuth-config repository on GitHub.","title":"Try Azimuth"},{"location":"try/#try-azimuth","text":"If you have access to a project on an OpenStack cloud, you can try Azimuth! The azimuth-config repository contains a special environment called demo that will provision a short-lived Azimuth deployment for demonstration purposes only . This environment attempts to infer all required configuration from the target OpenStack cloud - if this process is unsuccessful, an error will be produced. Danger Inferring configuration in the way that the demo environment does is not recommended as it is not guaranteed to produce the same result each time. For production deployments it is better to be explicit. To get started with a production deployment, see the best practice guide .","title":"Try Azimuth"},{"location":"try/#deploying-a-demo-instance","text":"The Azimuth deployment requires a clouds.yaml to run. Ideally, this should be an Application Credential . Once you have a clouds.yaml , run the following to deploy the Azimuth demo environment: # Set OpenStack configuration variables export OS_CLOUD = openstack export OS_CLIENT_CONFIG_FILE = /path/to/clouds.yaml # Clone the azimuth-config repository git clone https://github.com/stackhpc/azimuth-config cd azimuth-config # Set up the virtual environment ./bin/ensure-venv # Activate the demo environment source ./bin/activate demo # Install Ansible dependencies ansible-galaxy install -f -r requirements.yml # Deploy Azimuth ansible-playbook stackhpc.azimuth_ops.provision The URL for the Azimuth UI is printed at the end of the playbook run. The credentials you use to authenticate with Azimuth are the same as you would use with the underlying OpenStack cloud. Warning Azimuth is deployed using Ansible, which does not support Windows as a controller . Azimuth deployment has been tested on Linux and macOS.","title":"Deploying a demo instance"},{"location":"try/#limitations","text":"The demo deployment has a number of limitations in order to give it the best chance of running on any given cloud: It uses the single node deployment method . Community images are uploaded as private images, so Azimuth will only be able to provision Kubernetes clusters and Cluster-as-a-Service appliances in the same project as it is deployed in. sslip.io is used to provide DNS. This avoids the need for a DNS entry to be provisioned in advance. TLS is disabled for ingress , allowing the Azimuth to work even when the deployment is not reachable from the internet ( outbound internet connectivity is still required). Verification of SSL certificates for the OpenStack API is disabled, allowing Azimuth to work even when the target cloud uses a custom CA. The deployment secrets are not secret , as they are stored in plain text in the azimuth-config repository on GitHub.","title":"Limitations"},{"location":"configuration/","text":"Customising the Azimuth configuration The roles in the azimuth-ops collection support a vast array of variables to customise an Azimuth deployment. However azimuth-ops endeavours to pick sensible defaults where appropriate, so this documentation focuses on configuration that is required or commonly changed. For more advanced cases, the role defaults files are extensively documented and can be consulted directly. Note Make sure you are familiar with the Azimuth and Zenith architectures before continuing. It is assumed that you have already followed the steps in Setting up a configuration repository , and so have an environment for your site that is ready to be configured.","title":"Customising the Azimuth configuration"},{"location":"configuration/#customising-the-azimuth-configuration","text":"The roles in the azimuth-ops collection support a vast array of variables to customise an Azimuth deployment. However azimuth-ops endeavours to pick sensible defaults where appropriate, so this documentation focuses on configuration that is required or commonly changed. For more advanced cases, the role defaults files are extensively documented and can be consulted directly. Note Make sure you are familiar with the Azimuth and Zenith architectures before continuing. It is assumed that you have already followed the steps in Setting up a configuration repository , and so have an environment for your site that is ready to be configured.","title":"Customising the Azimuth configuration"},{"location":"configuration/01-prerequisites/","text":"Prerequisites In order to deploy Azimuth, a small number of prerequisites must be fulfilled. OpenStack cloud Currently, Azimuth is able to target OpenStack clouds with the following services enabled: Identity (Keystone) Image (Glance) Compute (Nova) Block storage (Cinder) Network (Neutron) OVN and OVS/ML2 drivers supported Load balancer (Octavia) Amphora and OVN drivers supported Azimuth has no specific requirement on the version of OpenStack. It is known to work on on Train release and newer. Networking OpenStack projects that are used for Azimuth deployments (infra projects) or into which Azimuth will deploy platforms on behalf of users (workload projects) require access to a network that is shared as external in Neutron, on which floating IPs can be allocated. This network must provide egress to the internet, but does not need to provide ingress from the internet. This network should be given the Neutron tag portal-external so that it can be correctly detected by Azimuth, especially in the case where there are multiple external networks. Tip Adding the Neutron tag can be done using the OpenStack CLI (usually as admin): openstack network set --tag portal-external ${ external_network_name } Machines provisioned as part of an Azimuth deployment, or as part of platforms in workload projects, will be attached to a private network that is connected to this external network using a router. These machines must be able to access the OpenStack API for the cloud in which they are deployed. Cinder volumes and Kubernetes etcd , the distributed key-value store used by Kubernetes , is extremely sensitive to slow disks , requiring at least 50 sequential write IOPs. The recommended OpenStack configuration is to use local disk on the hypervisor for ephemeral root disks if possible. With this configuration, etcd just about works with spinning disk. If Cinder volumes are used for the root disks of control plane nodes in a Kubernetes cluster, they must be from an SSD-backed pool. Danger Network-attached spinning disks will not be fast enough for etcd, resulting in performance and stability issues for Kubernetes clusters. Tip If you do not have much SSD capacity, consider having multiple volume types and limiting access to the SSD-backed volume type to Kubernetes instances only. OpenStack project quotas A standard high-availability (HA) deployment with a seed node, 3 control plane nodes and 3 worker nodes, requires the following resources: 1 x network, 1 x subnet, 1 x router 1 x seed node (4 vCPU, 8 GB) 4 x control plane nodes (4 vCPU, 8 GB) 3 x during normal operation, 4 x during rolling upgrade 4 x worker nodes (8 vCPU, 16 GB) 3 x during normal operation, 4 x during rolling upgrade 3 x load-balancers 500GB Cinder storage 3 x floating IPs One for accessing the seed node One fo the ingress controller for accessing HTTP services One for the Zenith SSHD server Tip It is recommended to have a project for each concrete environment that is being deployed, particularly for high-availability (HA) deployments. Application Credential You should create an Application Credential for the project and save the resulting clouds.yaml as ./environments//clouds.yaml . Warning Each concrete environment should have a separate application credential. Wildcard DNS Zenith exposes HTTP services using random subdomains under a parent domain. This means that Azimuth and Zenith require control of a entire subdomain, e.g. *.azimuth.example.org . The Azimuth UI will be exposed as portal.azimuth.example.org , with Zenith services exposed as .azimuth.example.org . Azimuth leverages Kubernetes Ingress as a dynamically configurable HTTP proxy to route traffic from these domains to the correct services. ingress-nginx is deployed as the ingress controller and is exposed using a LoadBalancer service in Kubernetes. This results in an Octavia load-balancer being deployed with a floating IP attached that routes traffic to the ingress controller. In order for traffic to be routed correctly for these domains, a wildcard DNS record must exist for *.azimuth.example.org that points at the floating IP of the load-balancer for the ingress controller. Azimuth does not manage this DNS record.","title":"Prerequisites"},{"location":"configuration/01-prerequisites/#prerequisites","text":"In order to deploy Azimuth, a small number of prerequisites must be fulfilled.","title":"Prerequisites"},{"location":"configuration/01-prerequisites/#openstack-cloud","text":"Currently, Azimuth is able to target OpenStack clouds with the following services enabled: Identity (Keystone) Image (Glance) Compute (Nova) Block storage (Cinder) Network (Neutron) OVN and OVS/ML2 drivers supported Load balancer (Octavia) Amphora and OVN drivers supported Azimuth has no specific requirement on the version of OpenStack. It is known to work on on Train release and newer.","title":"OpenStack cloud"},{"location":"configuration/01-prerequisites/#networking","text":"OpenStack projects that are used for Azimuth deployments (infra projects) or into which Azimuth will deploy platforms on behalf of users (workload projects) require access to a network that is shared as external in Neutron, on which floating IPs can be allocated. This network must provide egress to the internet, but does not need to provide ingress from the internet. This network should be given the Neutron tag portal-external so that it can be correctly detected by Azimuth, especially in the case where there are multiple external networks. Tip Adding the Neutron tag can be done using the OpenStack CLI (usually as admin): openstack network set --tag portal-external ${ external_network_name } Machines provisioned as part of an Azimuth deployment, or as part of platforms in workload projects, will be attached to a private network that is connected to this external network using a router. These machines must be able to access the OpenStack API for the cloud in which they are deployed.","title":"Networking"},{"location":"configuration/01-prerequisites/#cinder-volumes-and-kubernetes","text":"etcd , the distributed key-value store used by Kubernetes , is extremely sensitive to slow disks , requiring at least 50 sequential write IOPs. The recommended OpenStack configuration is to use local disk on the hypervisor for ephemeral root disks if possible. With this configuration, etcd just about works with spinning disk. If Cinder volumes are used for the root disks of control plane nodes in a Kubernetes cluster, they must be from an SSD-backed pool. Danger Network-attached spinning disks will not be fast enough for etcd, resulting in performance and stability issues for Kubernetes clusters. Tip If you do not have much SSD capacity, consider having multiple volume types and limiting access to the SSD-backed volume type to Kubernetes instances only.","title":"Cinder volumes and Kubernetes"},{"location":"configuration/01-prerequisites/#openstack-project-quotas","text":"A standard high-availability (HA) deployment with a seed node, 3 control plane nodes and 3 worker nodes, requires the following resources: 1 x network, 1 x subnet, 1 x router 1 x seed node (4 vCPU, 8 GB) 4 x control plane nodes (4 vCPU, 8 GB) 3 x during normal operation, 4 x during rolling upgrade 4 x worker nodes (8 vCPU, 16 GB) 3 x during normal operation, 4 x during rolling upgrade 3 x load-balancers 500GB Cinder storage 3 x floating IPs One for accessing the seed node One fo the ingress controller for accessing HTTP services One for the Zenith SSHD server Tip It is recommended to have a project for each concrete environment that is being deployed, particularly for high-availability (HA) deployments.","title":"OpenStack project quotas"},{"location":"configuration/01-prerequisites/#application-credential","text":"You should create an Application Credential for the project and save the resulting clouds.yaml as ./environments//clouds.yaml . Warning Each concrete environment should have a separate application credential.","title":"Application Credential"},{"location":"configuration/01-prerequisites/#wildcard-dns","text":"Zenith exposes HTTP services using random subdomains under a parent domain. This means that Azimuth and Zenith require control of a entire subdomain, e.g. *.azimuth.example.org . The Azimuth UI will be exposed as portal.azimuth.example.org , with Zenith services exposed as .azimuth.example.org . Azimuth leverages Kubernetes Ingress as a dynamically configurable HTTP proxy to route traffic from these domains to the correct services. ingress-nginx is deployed as the ingress controller and is exposed using a LoadBalancer service in Kubernetes. This results in an Octavia load-balancer being deployed with a floating IP attached that routes traffic to the ingress controller. In order for traffic to be routed correctly for these domains, a wildcard DNS record must exist for *.azimuth.example.org that points at the floating IP of the load-balancer for the ingress controller. Azimuth does not manage this DNS record.","title":"Wildcard DNS"},{"location":"configuration/02-deployment-method/","text":"Deployment method azimuth-ops supports two deployment methods - singlenode and ha . Networking automation azimuth-ops will create an internal network, onto which all nodes for the deployment will be placed. It will also create a router connecting the internal network to the external network where floating IPs are allocated. Single node In this deployment method, a single node is provisioned with Terraform and configured as a K3S cluster. The full Azimuth stack is then deployed onto this cluster. Warning This deployment method is only suitable for development or demonstration. To use the single node deployment method, use the singlenode environment in your ansible.cfg : ansible.cfg [defaults] inventory = ../base/inventory,../singlenode/inventory,./inventory The following variables must be set to define the properties of the K3S node: environments/my-site/inventory/group_vars/all/variables.yml # The ID of the external network infra_external_network_id : \"\" # The floating IP to which to wildcard DNS entry has been assigned infra_fixed_floatingip : \"\" # The ID of the flavor to use for the K3S node # A flavor with at least 4 CPUs and 16GB RAM is recommended infra_flavor_id : \"\" # The size of the volume to use for K3S cluster data infra_data_volume_size : 100 Highly-available (HA) For the HA deployment method, Terraform is also used to provision a single node that is configured as a K3S cluster. However rather than hosting the Azimuth components, as in the single node case, this K3S cluster is only configured as a Cluster API management cluster . Cluster API on the K3S cluster is then used to manage a HA cluster, in the same project and on the same network. The Azimuth stack is then deployed onto this cluster. To use the HA deployment method, use the ha environment in your ansible.cfg : ansible.cfg [defaults] inventory = ../base/inventory,../ha/inventory,./inventory The following variables must be set to define the properties of the K3S node and the Cluster API managed nodes: environments/my-site/inventory/group_vars/all/variables.yml # The ID of the external network infra_external_network_id : \"\" # The ID of the flavor to use for the K3S node # A flavor with at least 2 CPUs and 8GB RAM is recommended infra_flavor_id : \"\" # The name of the flavor to use for control plane nodes # A flavor with at least 2 CPUs, 8GB RAM and 100GB root disk is recommended capi_cluster_control_plane_flavor : \"\" # The name of the flavor to use for worker nodes # A flavor with at least 4 CPUs, 16GB RAM and 100GB root disk is recommended capi_cluster_worker_flavor : \"\" # The number of worker nodes capi_cluster_worker_count : 3 # The floating IP to which to wildcard DNS entry has been assigned capi_cluster_addons_ingress_load_balancer_ip : \"\"","title":"Deployment method"},{"location":"configuration/02-deployment-method/#deployment-method","text":"azimuth-ops supports two deployment methods - singlenode and ha . Networking automation azimuth-ops will create an internal network, onto which all nodes for the deployment will be placed. It will also create a router connecting the internal network to the external network where floating IPs are allocated.","title":"Deployment method"},{"location":"configuration/02-deployment-method/#single-node","text":"In this deployment method, a single node is provisioned with Terraform and configured as a K3S cluster. The full Azimuth stack is then deployed onto this cluster. Warning This deployment method is only suitable for development or demonstration. To use the single node deployment method, use the singlenode environment in your ansible.cfg : ansible.cfg [defaults] inventory = ../base/inventory,../singlenode/inventory,./inventory The following variables must be set to define the properties of the K3S node: environments/my-site/inventory/group_vars/all/variables.yml # The ID of the external network infra_external_network_id : \"\" # The floating IP to which to wildcard DNS entry has been assigned infra_fixed_floatingip : \"\" # The ID of the flavor to use for the K3S node # A flavor with at least 4 CPUs and 16GB RAM is recommended infra_flavor_id : \"\" # The size of the volume to use for K3S cluster data infra_data_volume_size : 100","title":"Single node"},{"location":"configuration/02-deployment-method/#highly-available-ha","text":"For the HA deployment method, Terraform is also used to provision a single node that is configured as a K3S cluster. However rather than hosting the Azimuth components, as in the single node case, this K3S cluster is only configured as a Cluster API management cluster . Cluster API on the K3S cluster is then used to manage a HA cluster, in the same project and on the same network. The Azimuth stack is then deployed onto this cluster. To use the HA deployment method, use the ha environment in your ansible.cfg : ansible.cfg [defaults] inventory = ../base/inventory,../ha/inventory,./inventory The following variables must be set to define the properties of the K3S node and the Cluster API managed nodes: environments/my-site/inventory/group_vars/all/variables.yml # The ID of the external network infra_external_network_id : \"\" # The ID of the flavor to use for the K3S node # A flavor with at least 2 CPUs and 8GB RAM is recommended infra_flavor_id : \"\" # The name of the flavor to use for control plane nodes # A flavor with at least 2 CPUs, 8GB RAM and 100GB root disk is recommended capi_cluster_control_plane_flavor : \"\" # The name of the flavor to use for worker nodes # A flavor with at least 4 CPUs, 16GB RAM and 100GB root disk is recommended capi_cluster_worker_flavor : \"\" # The number of worker nodes capi_cluster_worker_count : 3 # The floating IP to which to wildcard DNS entry has been assigned capi_cluster_addons_ingress_load_balancer_ip : \"\"","title":"Highly-available (HA)"},{"location":"configuration/03-kubernetes-config/","text":"Kubernetes configuration The concepts in this section apply to any Kubernetes clusters created using Cluster API, i.e. the HA cluster in a HA deployment and tenant clusters. The variable names differ slightly for the two cases. Images When building a cluster, Cluster API requires that an image exists in the target cloud that is accessible to the target project and has the correct version of kubelet and kubeadm available. Suitable images are uploaded as part of an Azimuth deployment using the Community images functionality and the IDs are automatically propagated where they are needed, i.e. for the Azimuth HA cluster and the Kubernetes cluster templates . If required, e.g. for custom Kubernetes templates , the IDs of these images can be referenced using the community_images_image_ids variable: environments/my-site/inventory/group_vars/all/variables.yml kube_1_25_image_id : \"{{ community_images_image_ids.kube_1_25 }}\" kube_1_26_image_id : \"{{ community_images_image_ids.kube_1_26 }}\" kube_1_27_image_id : \"{{ community_images_image_ids.kube_1_27 }}\" Docker Hub mirror Docker Hub imposes rate limits on image downloads, which can cause issues for both the Azimuth HA cluster and, in particular, tenant clusters. This can be worked around by mirroring the images to a local registry. If you have a Docker Hub mirror available, this can be configured using the following variables: #### For the HA cluster #### # The ID of the external network to use capi_cluster_registry_mirrors : docker.io : [ \"https://docker-hub-mirror.example.org/v2\" ] #### For tenant clusters #### azimuth_capi_operator_capi_helm_registry_mirrors : docker.io : [ \"https://docker-hub-mirror.example.org/v2\" ] Tip If you do not have a Docker Hub mirror available, one can be deployed as part of an Azimuth deployment . This mirror will be automatically configured for tenant Kubernetes clusters. This mirror cannot be used for the Azimuth HA cluster as it is deployed on that cluster. Multiple external networks In the case where multiple external networks are available, you must tell Azimuth which one to use: environments/my-site/inventory/group_vars/all/variables.yml #### For the HA cluster #### # The ID of the external network to use capi_cluster_external_network_id : \"\" #### For tenant clusters #### azimuth_capi_operator_external_network_id : \"\" Note This does not currently respect the portal-external tag. Volume-backed instances Flavors with 100GB root disks are recommended for Kubernetes nodes, both for the Azimuth deployment and for tenant clusters. If flavors with large root disks are not available on the target cloud, it is possible to use volume-backed instances instead. etcd and spinning disks The configuration options in this section should be used subject to the advice in the prerequisites about using Cinder volumes with Kubernetes. To configure Kubernetes clusters to use volume-backed instances (i.e. use a Cinder volume as the root disk), the following variables can be used: environments/my-site/inventory/group_vars/all/variables.yml #### For the HA cluster #### # The size of the root volumes for Kubernetes nodes capi_cluster_root_volume_size : 100 # The volume type to use for root volumes for Kubernetes nodes capi_cluster_root_volume_type : nvme #### For tenant clusters #### azimuth_capi_operator_capi_helm_root_volume_size : 100 azimuth_capi_operator_capi_helm_root_volume_type : nvme Tip You can see the available volume types using the OpenStack CLI: openstack volume type list Load-balancer provider If the target cloud uses OVN networking , and the OVN Octavia provider is enabled, then Kubernetes clusters should be configured to use the OVN provider for any load-balancers that are created: environments/my-site/inventory/group_vars/all/variables.yml #### For the HA cluster #### # The provider for the API server load-balancer created by Cluster API capi_cluster_apiserver_loadbalancer_provider : ovn # The provider for load-balancers created for LoadBalancer services capi_cluster_addons_openstack_loadbalancer_provider : ovn #### For tenant clusters #### # Tenant API servers are load-balanced using Zenith # This variable applies to load-balancers created for LoadBalancer services azimuth_capi_operator_capi_helm_openstack_loadbalancer_provider : ovn !!! tip You can see the available load-balancer providers using the OpenStack CLI: ```sh openstack loadbalancer provider list ``` ## Availability zones By default, an Azimuth installation assumes that there is a single [availability zone (AZ)](https://docs.openstack.org/nova/latest/admin/availability-zones.html) called `nova` - this is the default set up and common for small-to-medium sized clouds. If this is not the case for your target cloud, you may need to set additional variables specifying the AZs to use, both for the HA cluster and for tenant Kubernetes clusters. The default behaviour when scheduling Kubernetes nodes using Cluster API is: * *All available AZs* are considered for control plane nodes, and Cluster API will attempt to spread the nodes across multiple AZs, if available. * Worker nodes are scheduled into the `nova` AZ explicitly. If this AZ does not exist, scheduling will fail. If this default behaviour does not work for your target cloud, the following options are available. !!! note Cluster API refers to \"failure domains\" which, in the OpenStack provider, correspond to availability zones (AZs). ### Use specific availability zones To specify the availability zones for Kubernetes nodes, the following variables can be used: ```yaml title=\"environments/my-site/inventory/group_vars/all/variables.yml\" #### For the HA cluster #### # A list of failure domains that should be considered for control plane nodes capi_cluster_control_plane_failure_domains: [az1, az2] # The failure domain for worker nodes capi_cluster_worker_failure_domain: az1 #### For tenant clusters #### azimuth_capi_operator_capi_helm_control_plane_failure_domains: [az1, az2] azimuth_capi_operator_capi_helm_worker_failure_domain: az1 Ignore availability zones It is possible to configure Cluster API clusters in such a way that AZs are not specified at all for Kubernetes nodes. This allows other placement constraints such as flavor traits and host aggregate to be used, and a suitable AZ to be selected by OpenStack. environments/my-site/inventory/group_vars/all/variables.yml #### For the HA cluster #### # Indicate that the failure domain should be omitted for control plane nodes capi_cluster_control_plane_omit_failure_domain : true # Specify no failure domain for worker nodes capi_cluster_worker_failure_domain : null #### For tenant clusters #### azimuth_capi_operator_capi_helm_control_plane_omit_failure_domain : true azimuth_capi_operator_capi_helm_worker_failure_domain : null","title":"Kubernetes configuration"},{"location":"configuration/03-kubernetes-config/#kubernetes-configuration","text":"The concepts in this section apply to any Kubernetes clusters created using Cluster API, i.e. the HA cluster in a HA deployment and tenant clusters. The variable names differ slightly for the two cases.","title":"Kubernetes configuration"},{"location":"configuration/03-kubernetes-config/#images","text":"When building a cluster, Cluster API requires that an image exists in the target cloud that is accessible to the target project and has the correct version of kubelet and kubeadm available. Suitable images are uploaded as part of an Azimuth deployment using the Community images functionality and the IDs are automatically propagated where they are needed, i.e. for the Azimuth HA cluster and the Kubernetes cluster templates . If required, e.g. for custom Kubernetes templates , the IDs of these images can be referenced using the community_images_image_ids variable: environments/my-site/inventory/group_vars/all/variables.yml kube_1_25_image_id : \"{{ community_images_image_ids.kube_1_25 }}\" kube_1_26_image_id : \"{{ community_images_image_ids.kube_1_26 }}\" kube_1_27_image_id : \"{{ community_images_image_ids.kube_1_27 }}\"","title":"Images"},{"location":"configuration/03-kubernetes-config/#docker-hub-mirror","text":"Docker Hub imposes rate limits on image downloads, which can cause issues for both the Azimuth HA cluster and, in particular, tenant clusters. This can be worked around by mirroring the images to a local registry. If you have a Docker Hub mirror available, this can be configured using the following variables: #### For the HA cluster #### # The ID of the external network to use capi_cluster_registry_mirrors : docker.io : [ \"https://docker-hub-mirror.example.org/v2\" ] #### For tenant clusters #### azimuth_capi_operator_capi_helm_registry_mirrors : docker.io : [ \"https://docker-hub-mirror.example.org/v2\" ] Tip If you do not have a Docker Hub mirror available, one can be deployed as part of an Azimuth deployment . This mirror will be automatically configured for tenant Kubernetes clusters. This mirror cannot be used for the Azimuth HA cluster as it is deployed on that cluster.","title":"Docker Hub mirror"},{"location":"configuration/03-kubernetes-config/#multiple-external-networks","text":"In the case where multiple external networks are available, you must tell Azimuth which one to use: environments/my-site/inventory/group_vars/all/variables.yml #### For the HA cluster #### # The ID of the external network to use capi_cluster_external_network_id : \"\" #### For tenant clusters #### azimuth_capi_operator_external_network_id : \"\" Note This does not currently respect the portal-external tag.","title":"Multiple external networks"},{"location":"configuration/03-kubernetes-config/#volume-backed-instances","text":"Flavors with 100GB root disks are recommended for Kubernetes nodes, both for the Azimuth deployment and for tenant clusters. If flavors with large root disks are not available on the target cloud, it is possible to use volume-backed instances instead. etcd and spinning disks The configuration options in this section should be used subject to the advice in the prerequisites about using Cinder volumes with Kubernetes. To configure Kubernetes clusters to use volume-backed instances (i.e. use a Cinder volume as the root disk), the following variables can be used: environments/my-site/inventory/group_vars/all/variables.yml #### For the HA cluster #### # The size of the root volumes for Kubernetes nodes capi_cluster_root_volume_size : 100 # The volume type to use for root volumes for Kubernetes nodes capi_cluster_root_volume_type : nvme #### For tenant clusters #### azimuth_capi_operator_capi_helm_root_volume_size : 100 azimuth_capi_operator_capi_helm_root_volume_type : nvme Tip You can see the available volume types using the OpenStack CLI: openstack volume type list","title":"Volume-backed instances"},{"location":"configuration/03-kubernetes-config/#load-balancer-provider","text":"If the target cloud uses OVN networking , and the OVN Octavia provider is enabled, then Kubernetes clusters should be configured to use the OVN provider for any load-balancers that are created: environments/my-site/inventory/group_vars/all/variables.yml #### For the HA cluster #### # The provider for the API server load-balancer created by Cluster API capi_cluster_apiserver_loadbalancer_provider : ovn # The provider for load-balancers created for LoadBalancer services capi_cluster_addons_openstack_loadbalancer_provider : ovn #### For tenant clusters #### # Tenant API servers are load-balanced using Zenith # This variable applies to load-balancers created for LoadBalancer services azimuth_capi_operator_capi_helm_openstack_loadbalancer_provider : ovn !!! tip You can see the available load-balancer providers using the OpenStack CLI: ```sh openstack loadbalancer provider list ``` ## Availability zones By default, an Azimuth installation assumes that there is a single [availability zone (AZ)](https://docs.openstack.org/nova/latest/admin/availability-zones.html) called `nova` - this is the default set up and common for small-to-medium sized clouds. If this is not the case for your target cloud, you may need to set additional variables specifying the AZs to use, both for the HA cluster and for tenant Kubernetes clusters. The default behaviour when scheduling Kubernetes nodes using Cluster API is: * *All available AZs* are considered for control plane nodes, and Cluster API will attempt to spread the nodes across multiple AZs, if available. * Worker nodes are scheduled into the `nova` AZ explicitly. If this AZ does not exist, scheduling will fail. If this default behaviour does not work for your target cloud, the following options are available. !!! note Cluster API refers to \"failure domains\" which, in the OpenStack provider, correspond to availability zones (AZs). ### Use specific availability zones To specify the availability zones for Kubernetes nodes, the following variables can be used: ```yaml title=\"environments/my-site/inventory/group_vars/all/variables.yml\" #### For the HA cluster #### # A list of failure domains that should be considered for control plane nodes capi_cluster_control_plane_failure_domains: [az1, az2] # The failure domain for worker nodes capi_cluster_worker_failure_domain: az1 #### For tenant clusters #### azimuth_capi_operator_capi_helm_control_plane_failure_domains: [az1, az2] azimuth_capi_operator_capi_helm_worker_failure_domain: az1","title":"Load-balancer provider"},{"location":"configuration/03-kubernetes-config/#ignore-availability-zones","text":"It is possible to configure Cluster API clusters in such a way that AZs are not specified at all for Kubernetes nodes. This allows other placement constraints such as flavor traits and host aggregate to be used, and a suitable AZ to be selected by OpenStack. environments/my-site/inventory/group_vars/all/variables.yml #### For the HA cluster #### # Indicate that the failure domain should be omitted for control plane nodes capi_cluster_control_plane_omit_failure_domain : true # Specify no failure domain for worker nodes capi_cluster_worker_failure_domain : null #### For tenant clusters #### azimuth_capi_operator_capi_helm_control_plane_omit_failure_domain : true azimuth_capi_operator_capi_helm_worker_failure_domain : null","title":"Ignore availability zones"},{"location":"configuration/04-target-cloud/","text":"Target OpenStack cloud The main piece of site-specific configuration required by Azimuth is the connection information for the target OpenStack cloud. Azimuth uses the Keystone Service Catalog to discover the endpoints for OpenStack services, so only needs to be told where to find the Keystone v3 endpoint: environments/my-site/inventory/group_vars/all/variables.yml azimuth_openstack_auth_url : https://openstack.example-cloud.org:5000/v3 Warning Make sure to include the trailing /v3 , otherwise authentication will fail. Azimuth does not currently have support for specifying a custom CA for verifying TLS. If the target cloud uses a TLS certificate that is not verifiable using the operating-system default trustroots, TLS verification must be disabled: environments/my-site/inventory/group_vars/all/variables.yml azimuth_openstack_verify_ssl : false If you use a domain other than default , you will also need to tell Azimuth the name of the domain to use when authenticating: environments/my-site/inventory/group_vars/all/variables.yml azimuth_openstack_domain : my-domain Cloud name Azimuth presents the name of the current cloud in various places in the interface. To configure this, set the following variables: environments/my-site/inventory/group_vars/all/variables.yml # The machine-readable cloud name azimuth_current_cloud_name : my-cloud # The human-readable name for the cloud azimuth_current_cloud_label : My Cloud Federated authentication By default the password authenticator is enabled, which accepts a username and password and swaps them for an OpenStack token. This requires no additional configuration. If the target cloud consumes identities from an external provider via Keystone federation , then Azimuth should be configured to obtain an OpenStack token from Keystone using the same flow as Horizon. To enable this, additional configuration is required for both Azimuth and Keystone on the target cloud. First, the Keystone configuration of the target cloud must be modified to add Azimuth as a trusted dashboard , otherwise it will be unable to retrieve a token via the federated flow. When configuring Azimuth as a trusted dashboard, you must specify the URL that will receive token data, where the portal domain depends on the ingress configuration : Keystone configuration [federation] trusted_dashboard = https://portal.azimuth.example.org/auth/federated/complete/ In your Azimuth configuration, enable the federated authenticator and tell it the provider and protocol to use: environments/my-site/inventory/group_vars/all/variables.yml azimuth_authenticator_federated_enabled : yes azimuth_authenticator_federated_provider : \"\" azimuth_authenticator_federated_protocol : \"\" This will result in Azimuth using URLs of the following form for the federated authentication flow: /auth/OS-FEDERATION/identity_providers//protocols//websso The provider and protocol will depend on the Keystone configuration of the target OpenStack cloud. To also disable the password authenticator - so that federation is the only supported login - set the following variable: environments/my-site/inventory/group_vars/all/variables.yml azimuth_authenticator_password_enabled : no To change the human-readable names for the authenticators, which are presented in the authentication method selection form, use the following variables: environments/my-site/inventory/group_vars/all/variables.yml azimuth_authenticator_password_label : \"Username + Password\" azimuth_authenticator_federated_label : \"Federated\" Networking configuration Azimuth uses Neutron resource tags to discover the networks it should use, and the tags it looks for are portal-internal and portal-external for the internal and external networks respectively. These tags must be applied by the cloud operator. If it cannot find a tagged internal network, the default behaviour is for Azimuth to create an internal network to use (and the corresponding router to attach it to the external network). The discovery and auto-creation process is described in detail in Network discovery and auto-creation . To disable the auto-creation of internal networks, use the following: environments/my-site/inventory/group_vars/all/variables.yml azimuth_openstack_create_internal_net : false The CIDR of the auto-created subnet can also be changed, although it is the same for every project. For example, you may need to do this if the default CIDR conflicts with resources elsewhere on your network that machines provisioned by Azimuth need to access: environments/my-site/inventory/group_vars/all/variables.yml # Defaults to 192.168.3.0/24 azimuth_openstack_internal_net_cidr : 10.0.3.0/24 Monitoring Cloud Capacity Azimuth is able to federate cloud metrics from a prometheus running within your cloud enviroment, such as the one deployed by: https://github.com/stackhpc/stackhpc-kayobe-config Typically we also assume the following exporter is being used to query the current capacity of your cloud, mostly using data from OpenStack placement: https://github.com/stackhpc/os-capacity First you need to enable the project metrics and cloud metrics links within Azimuth by configuring: # Defaults to no cloud_metrics_enabled : yes To make sure Azimuth knows how to access the prometheus running in your cloud, you need to configure: # hostname needed to match TLS certificate name cloud_metrics_prometheus_host : \"mycloud.example.com\" # ip that matches the above hostname cloud_metrics_prometheus_ip : \"\" cloud_metrics_prometheus_port : 9091 cloud_metrics_prometheus_basic_auth_username : \"\" cloud_metrics_prometheus_basic_auth_password : \"\"","title":"Target OpenStack cloud"},{"location":"configuration/04-target-cloud/#target-openstack-cloud","text":"The main piece of site-specific configuration required by Azimuth is the connection information for the target OpenStack cloud. Azimuth uses the Keystone Service Catalog to discover the endpoints for OpenStack services, so only needs to be told where to find the Keystone v3 endpoint: environments/my-site/inventory/group_vars/all/variables.yml azimuth_openstack_auth_url : https://openstack.example-cloud.org:5000/v3 Warning Make sure to include the trailing /v3 , otherwise authentication will fail. Azimuth does not currently have support for specifying a custom CA for verifying TLS. If the target cloud uses a TLS certificate that is not verifiable using the operating-system default trustroots, TLS verification must be disabled: environments/my-site/inventory/group_vars/all/variables.yml azimuth_openstack_verify_ssl : false If you use a domain other than default , you will also need to tell Azimuth the name of the domain to use when authenticating: environments/my-site/inventory/group_vars/all/variables.yml azimuth_openstack_domain : my-domain","title":"Target OpenStack cloud"},{"location":"configuration/04-target-cloud/#cloud-name","text":"Azimuth presents the name of the current cloud in various places in the interface. To configure this, set the following variables: environments/my-site/inventory/group_vars/all/variables.yml # The machine-readable cloud name azimuth_current_cloud_name : my-cloud # The human-readable name for the cloud azimuth_current_cloud_label : My Cloud","title":"Cloud name"},{"location":"configuration/04-target-cloud/#federated-authentication","text":"By default the password authenticator is enabled, which accepts a username and password and swaps them for an OpenStack token. This requires no additional configuration. If the target cloud consumes identities from an external provider via Keystone federation , then Azimuth should be configured to obtain an OpenStack token from Keystone using the same flow as Horizon. To enable this, additional configuration is required for both Azimuth and Keystone on the target cloud. First, the Keystone configuration of the target cloud must be modified to add Azimuth as a trusted dashboard , otherwise it will be unable to retrieve a token via the federated flow. When configuring Azimuth as a trusted dashboard, you must specify the URL that will receive token data, where the portal domain depends on the ingress configuration : Keystone configuration [federation] trusted_dashboard = https://portal.azimuth.example.org/auth/federated/complete/ In your Azimuth configuration, enable the federated authenticator and tell it the provider and protocol to use: environments/my-site/inventory/group_vars/all/variables.yml azimuth_authenticator_federated_enabled : yes azimuth_authenticator_federated_provider : \"\" azimuth_authenticator_federated_protocol : \"\" This will result in Azimuth using URLs of the following form for the federated authentication flow: /auth/OS-FEDERATION/identity_providers//protocols//websso The provider and protocol will depend on the Keystone configuration of the target OpenStack cloud. To also disable the password authenticator - so that federation is the only supported login - set the following variable: environments/my-site/inventory/group_vars/all/variables.yml azimuth_authenticator_password_enabled : no To change the human-readable names for the authenticators, which are presented in the authentication method selection form, use the following variables: environments/my-site/inventory/group_vars/all/variables.yml azimuth_authenticator_password_label : \"Username + Password\" azimuth_authenticator_federated_label : \"Federated\"","title":"Federated authentication"},{"location":"configuration/04-target-cloud/#networking-configuration","text":"Azimuth uses Neutron resource tags to discover the networks it should use, and the tags it looks for are portal-internal and portal-external for the internal and external networks respectively. These tags must be applied by the cloud operator. If it cannot find a tagged internal network, the default behaviour is for Azimuth to create an internal network to use (and the corresponding router to attach it to the external network). The discovery and auto-creation process is described in detail in Network discovery and auto-creation . To disable the auto-creation of internal networks, use the following: environments/my-site/inventory/group_vars/all/variables.yml azimuth_openstack_create_internal_net : false The CIDR of the auto-created subnet can also be changed, although it is the same for every project. For example, you may need to do this if the default CIDR conflicts with resources elsewhere on your network that machines provisioned by Azimuth need to access: environments/my-site/inventory/group_vars/all/variables.yml # Defaults to 192.168.3.0/24 azimuth_openstack_internal_net_cidr : 10.0.3.0/24","title":"Networking configuration"},{"location":"configuration/04-target-cloud/#monitoring-cloud-capacity","text":"Azimuth is able to federate cloud metrics from a prometheus running within your cloud enviroment, such as the one deployed by: https://github.com/stackhpc/stackhpc-kayobe-config Typically we also assume the following exporter is being used to query the current capacity of your cloud, mostly using data from OpenStack placement: https://github.com/stackhpc/os-capacity First you need to enable the project metrics and cloud metrics links within Azimuth by configuring: # Defaults to no cloud_metrics_enabled : yes To make sure Azimuth knows how to access the prometheus running in your cloud, you need to configure: # hostname needed to match TLS certificate name cloud_metrics_prometheus_host : \"mycloud.example.com\" # ip that matches the above hostname cloud_metrics_prometheus_ip : \"\" cloud_metrics_prometheus_port : 9091 cloud_metrics_prometheus_basic_auth_username : \"\" cloud_metrics_prometheus_basic_auth_password : \"\"","title":"Monitoring Cloud Capacity"},{"location":"configuration/05-secret-key/","text":"Secret key Azimuth requires a secret key that is used primarily for signing cookies: environments/my-site/inventory/group_vars/all/secrets.yml azimuth_secret_key : \"\" Tip This key should be a long, random string - at least 32 bytes (256 bits) is recommended. A suitable key can be generated using openssl rand -hex 32 . Danger This key should be kept secret. If you want to keep it in Git - which is recommended - then it must be encrypted .","title":"Secret key"},{"location":"configuration/05-secret-key/#secret-key","text":"Azimuth requires a secret key that is used primarily for signing cookies: environments/my-site/inventory/group_vars/all/secrets.yml azimuth_secret_key : \"\" Tip This key should be a long, random string - at least 32 bytes (256 bits) is recommended. A suitable key can be generated using openssl rand -hex 32 . Danger This key should be kept secret. If you want to keep it in Git - which is recommended - then it must be encrypted .","title":"Secret key"},{"location":"configuration/06-ingress/","text":"Ingress As mentioned in the prerequisites, Azimuth and Zenith expect to be given control of an entire subdomain, e.g. *.azimuth.example.org , and this domain must be assigned to a pre-allocated floating IP using a wildcard DNS entry. To tell azimuth-ops what domain it should use, simply set the following variable: environments/my-site/inventory/group_vars/all/variables.yml ingress_base_domain : azimuth.example.org This will result in azimuth-ops using portal.azimuth.example.org for the Azimuth portal interface, and Zenith will use domains of the form .azimuth.example.org for user-facing services. Other services deployed by Azimuth, such as Harbor and the monitoring and alerting dashboards will also be allocated subdomains under this domain. Transport Layer Security (TLS) TLS for Azimuth can be configured in two ways: Pre-existing wildcard certificate If you have a pre-existing wildcard TLS certificate issued for the ingress base domain, you can use this to provide TLS for Azimuth and Zenith services. Tip This is the recommended mechanism for production deployments, despite the lack of automation, for two reasons: It is not affected by rate limits Zenith services become available faster as it avoids the overhead of obtaining a certificate per service Warning It is your responsibility to renew the wildcard certificate before it expires. The Azimuth monitoring will produce alerts when the certificate is approaching its expiry date. To configure a pre-existing wildcard certificate for ingress, just create the following files in your environment: environments/my-site/tls/tls.crt Must contain the full certificate chain , with the most specific certificate at the top (e.g. the wildcard certificate), any intermediate certificates and the root CA at the bottom. environments/my-site/tls/tls.key The corresponding private key for the wildcard certificate. Danger The TLS key should be kept secret. If you want to keep it in Git - which is recommended - then it must be encrypted . When these files exist in an environment, azimuth-ops will automatically pick them up and use them. Info In the future, support for a wildcard certificate managed by cert-manager may be implemented. However this will require the use of a supported DNS provider in order to fulfil the DNS01 challenge (wildcard certificates cannot be issued for an HTTP01 challenge). Automated with cert-manager azimuth-ops is able to configure Ingress resources for Azimuth and Zenith services so that their TLS certificates are managed automatically using cert-manager . In this configuration, a certificate is issued for each separate subdomain by an ACME provider using the HTTP-01 challenge type . By default, cert-manager is enabled and this mechanism will be used to issue TLS certificates for Azimuth and Zenith services with no further configuration. The default ACME service is Let's Encrypt , which issues certificates that are trusted by all major operating systems and browsers. Let's Encrypt rate limits Let's Encrypt imposes rate limits to ensure fair usage. At the time of writing, the number of new certificates that can be issued is 50 per week per registed domain . The \"registered domain\" is the part of the domain that is purchased from the registrar so, for an Azimuth deployment with an ingress base domain of *.azimuth.example.org , the Let's Encrypt rate limit is imposed on example.org . If there are a large number of Zenith services and the rate limit is reached, cert-manager will not be able to obtain a certificate and Azimuth and Zenith services will never become available. Using another ACME provider It is possible to configure the issuer to use a different ACME server, e.g. if your institution has an ACME server that issues trusted certificates: environments/my-site/inventory/group_vars/all/variables.yml # The name of the issuer certmanager_acmehttp01issuer_name : example-acme # The URL of the ACME endpoint certmanager_acmehttp01issuer_server : https://acme.example.org If ACME server requires External Account Binding (EAB) it needs to be enabled and credentials added to encrypted secrets file: environments/my-site/inventory/group_vars/all/variables.yml # Indicates whether an External Account Binding (EAB) is required certmanager_acmehttp01issuer_eab_required : yes environments/my-site/inventory/group_vars/all/secrets.yml # The key ID of the EAB certmanager_acmehttp01issuer_eab_kid : \"EXAMPLE_EAB_KID\" # The HMAC key of the EAB certmanager_acmehttp01issuer_eab_key : \"EXAMPLE_EAB_KEY\"","title":"Ingress"},{"location":"configuration/06-ingress/#ingress","text":"As mentioned in the prerequisites, Azimuth and Zenith expect to be given control of an entire subdomain, e.g. *.azimuth.example.org , and this domain must be assigned to a pre-allocated floating IP using a wildcard DNS entry. To tell azimuth-ops what domain it should use, simply set the following variable: environments/my-site/inventory/group_vars/all/variables.yml ingress_base_domain : azimuth.example.org This will result in azimuth-ops using portal.azimuth.example.org for the Azimuth portal interface, and Zenith will use domains of the form .azimuth.example.org for user-facing services. Other services deployed by Azimuth, such as Harbor and the monitoring and alerting dashboards will also be allocated subdomains under this domain.","title":"Ingress"},{"location":"configuration/06-ingress/#transport-layer-security-tls","text":"TLS for Azimuth can be configured in two ways:","title":"Transport Layer Security (TLS)"},{"location":"configuration/06-ingress/#pre-existing-wildcard-certificate","text":"If you have a pre-existing wildcard TLS certificate issued for the ingress base domain, you can use this to provide TLS for Azimuth and Zenith services. Tip This is the recommended mechanism for production deployments, despite the lack of automation, for two reasons: It is not affected by rate limits Zenith services become available faster as it avoids the overhead of obtaining a certificate per service Warning It is your responsibility to renew the wildcard certificate before it expires. The Azimuth monitoring will produce alerts when the certificate is approaching its expiry date. To configure a pre-existing wildcard certificate for ingress, just create the following files in your environment: environments/my-site/tls/tls.crt Must contain the full certificate chain , with the most specific certificate at the top (e.g. the wildcard certificate), any intermediate certificates and the root CA at the bottom. environments/my-site/tls/tls.key The corresponding private key for the wildcard certificate. Danger The TLS key should be kept secret. If you want to keep it in Git - which is recommended - then it must be encrypted . When these files exist in an environment, azimuth-ops will automatically pick them up and use them. Info In the future, support for a wildcard certificate managed by cert-manager may be implemented. However this will require the use of a supported DNS provider in order to fulfil the DNS01 challenge (wildcard certificates cannot be issued for an HTTP01 challenge).","title":"Pre-existing wildcard certificate"},{"location":"configuration/06-ingress/#automated-with-cert-manager","text":"azimuth-ops is able to configure Ingress resources for Azimuth and Zenith services so that their TLS certificates are managed automatically using cert-manager . In this configuration, a certificate is issued for each separate subdomain by an ACME provider using the HTTP-01 challenge type . By default, cert-manager is enabled and this mechanism will be used to issue TLS certificates for Azimuth and Zenith services with no further configuration. The default ACME service is Let's Encrypt , which issues certificates that are trusted by all major operating systems and browsers. Let's Encrypt rate limits Let's Encrypt imposes rate limits to ensure fair usage. At the time of writing, the number of new certificates that can be issued is 50 per week per registed domain . The \"registered domain\" is the part of the domain that is purchased from the registrar so, for an Azimuth deployment with an ingress base domain of *.azimuth.example.org , the Let's Encrypt rate limit is imposed on example.org . If there are a large number of Zenith services and the rate limit is reached, cert-manager will not be able to obtain a certificate and Azimuth and Zenith services will never become available.","title":"Automated with cert-manager"},{"location":"configuration/06-ingress/#using-another-acme-provider","text":"It is possible to configure the issuer to use a different ACME server, e.g. if your institution has an ACME server that issues trusted certificates: environments/my-site/inventory/group_vars/all/variables.yml # The name of the issuer certmanager_acmehttp01issuer_name : example-acme # The URL of the ACME endpoint certmanager_acmehttp01issuer_server : https://acme.example.org If ACME server requires External Account Binding (EAB) it needs to be enabled and credentials added to encrypted secrets file: environments/my-site/inventory/group_vars/all/variables.yml # Indicates whether an External Account Binding (EAB) is required certmanager_acmehttp01issuer_eab_required : yes environments/my-site/inventory/group_vars/all/secrets.yml # The key ID of the EAB certmanager_acmehttp01issuer_eab_kid : \"EXAMPLE_EAB_KID\" # The HMAC key of the EAB certmanager_acmehttp01issuer_eab_key : \"EXAMPLE_EAB_KEY\"","title":"Using another ACME provider"},{"location":"configuration/07-platform-identity/","text":"Platform Identity In Azimuth, there are two kinds of users: Platform Users who are able to access one or more platforms deployed by Azimuth. Platform Admins who are able to sign in to Azimuth, manage the deployed platforms in a tenancy and administer access to those platforms. Only Platform Admins need to have an OpenStack account. Each Azimuth tenancy has an associated Identity Realm that provides the Platform Users for that tenancy and is administered by the Platform Admins for the tenancy. This allow access to platforms to be granted for users that do not have an OpenStack account. This separation of Platform Users from OpenStack accounts opens up a wide range of use cases that are not possible when platforms can only be accessed by users with OpenStack accounts. Example use case Imagine that a project with quota on an OpenStack cloud wishes to host an open workshop using Jupyter notebooks for teaching. In this case, they definitely don't want to grant every workshop attendee access to OpenStack, as these users may not be trusted. Using Azimuth, a trusted project member (i.e. a Project Admin) can deploy a JupyterHub in Azimuth and create users in their Identity Realm for the workshop attendees. These users can be granted access to JupyterHub for the duration of the workshop, and at the end of the workshop their access can be revoked. Use of Keycloak In order to accomplish this, every Azimuth installation includes an instance of the Keycloak open-source identity management platform. Each Azimuth tenancy (i.e. OpenStack project) has an associated realm in this Keycloak instance that is used to manage access to platforms deployed in that tenancy. The realm provides authentication and authorization for the Zenith services associated with the platforms in the tenancy using OpenID Connect (OIDC) . Each realm is created with two groups - admins and platform-users . Users who are in the platform-users group for a realm are granted access to all platforms deployed in the corresponding Azimuth tenancy. Users who are in the admins group are granted admin status for the realm, meaning they can perform actions in the Keycloak admin console such as: Managing users Assigning users to groups Configuring authentication policies , e.g. password requirements, multi-factor authentication Integrating external identity providers The Keycloak realms created by Azimuth are configured with Azimuth as an identity provider, so that Platform Admins who belong to a tenancy in Azimuth can sign in to the corresponding realm using the Azimuth identity provider. Platform Admins who sign in to a realm via Azimuth are automatically placed in the admins and platform-users groups described above. When a platform is deployed in an Azimuth tenancy a group is created in the corresponding identity realm, and access to the platform is controlled by membership of this group. Each Zenith service for the platform has a child group under the platform group that can be used to grant access to a single service within a platform. For example, the standard Linux Workstation platform (see Cluster-as-a-Service (CaaS) ) exposes two Zenith services - \"Web Console\" and \"Monitoring\". If an instance of this platform is deployed with the name my-workstation , then access to the \"Web Console\" service can be granted by either: Adding the user to the platform-users group. This will also grant the user access to all other platforms in the tenancy. Adding the user to the caas-my-workstation group. This will grant the user access to the \"Web Console\" and \"Monitoring\" services. Adding the user to the caas-my-workstation/webconsole group. This will grant the user access to the \"Web Console\" service only. Keycloak admin password The only required configuration for platform identity is to set the admin password for Keycloak: environments/my-site/inventory/group_vars/all/secrets.yml keycloak_admin_password : \"\" Danger This password should be kept secret. If you want to keep the password in Git - which is recommended - then it must be encrypted .","title":"Platform Identity"},{"location":"configuration/07-platform-identity/#platform-identity","text":"In Azimuth, there are two kinds of users: Platform Users who are able to access one or more platforms deployed by Azimuth. Platform Admins who are able to sign in to Azimuth, manage the deployed platforms in a tenancy and administer access to those platforms. Only Platform Admins need to have an OpenStack account. Each Azimuth tenancy has an associated Identity Realm that provides the Platform Users for that tenancy and is administered by the Platform Admins for the tenancy. This allow access to platforms to be granted for users that do not have an OpenStack account. This separation of Platform Users from OpenStack accounts opens up a wide range of use cases that are not possible when platforms can only be accessed by users with OpenStack accounts.","title":"Platform Identity"},{"location":"configuration/07-platform-identity/#example-use-case","text":"Imagine that a project with quota on an OpenStack cloud wishes to host an open workshop using Jupyter notebooks for teaching. In this case, they definitely don't want to grant every workshop attendee access to OpenStack, as these users may not be trusted. Using Azimuth, a trusted project member (i.e. a Project Admin) can deploy a JupyterHub in Azimuth and create users in their Identity Realm for the workshop attendees. These users can be granted access to JupyterHub for the duration of the workshop, and at the end of the workshop their access can be revoked.","title":"Example use case"},{"location":"configuration/07-platform-identity/#use-of-keycloak","text":"In order to accomplish this, every Azimuth installation includes an instance of the Keycloak open-source identity management platform. Each Azimuth tenancy (i.e. OpenStack project) has an associated realm in this Keycloak instance that is used to manage access to platforms deployed in that tenancy. The realm provides authentication and authorization for the Zenith services associated with the platforms in the tenancy using OpenID Connect (OIDC) . Each realm is created with two groups - admins and platform-users . Users who are in the platform-users group for a realm are granted access to all platforms deployed in the corresponding Azimuth tenancy. Users who are in the admins group are granted admin status for the realm, meaning they can perform actions in the Keycloak admin console such as: Managing users Assigning users to groups Configuring authentication policies , e.g. password requirements, multi-factor authentication Integrating external identity providers The Keycloak realms created by Azimuth are configured with Azimuth as an identity provider, so that Platform Admins who belong to a tenancy in Azimuth can sign in to the corresponding realm using the Azimuth identity provider. Platform Admins who sign in to a realm via Azimuth are automatically placed in the admins and platform-users groups described above. When a platform is deployed in an Azimuth tenancy a group is created in the corresponding identity realm, and access to the platform is controlled by membership of this group. Each Zenith service for the platform has a child group under the platform group that can be used to grant access to a single service within a platform. For example, the standard Linux Workstation platform (see Cluster-as-a-Service (CaaS) ) exposes two Zenith services - \"Web Console\" and \"Monitoring\". If an instance of this platform is deployed with the name my-workstation , then access to the \"Web Console\" service can be granted by either: Adding the user to the platform-users group. This will also grant the user access to all other platforms in the tenancy. Adding the user to the caas-my-workstation group. This will grant the user access to the \"Web Console\" and \"Monitoring\" services. Adding the user to the caas-my-workstation/webconsole group. This will grant the user access to the \"Web Console\" service only.","title":"Use of Keycloak"},{"location":"configuration/07-platform-identity/#keycloak-admin-password","text":"The only required configuration for platform identity is to set the admin password for Keycloak: environments/my-site/inventory/group_vars/all/secrets.yml keycloak_admin_password : \"\" Danger This password should be kept secret. If you want to keep the password in Git - which is recommended - then it must be encrypted .","title":"Keycloak admin password"},{"location":"configuration/08-zenith/","text":"Zenith Application Proxy The Zenith application proxy is enabled by default in the reference configuration. To disable it, just set: environments/my-site/inventory/group_vars/all/variables.yml azimuth_apps_enabled : no The only piece of configuration that is required for Zenith is a secret key that is used to sign and verify the single-use tokens issued by the registrar (see the Zenith architecture document for details): environments/my-site/inventory/group_vars/all/secrets.yml zenith_registrar_subdomain_token_signing_key : \"\" Tip This key should be a long, random string - at least 32 bytes (256 bits) is recommended. A suitable key can be generated using openssl rand -hex 32 . Danger This key should be kept secret. If you want to keep it in Git - which is recommended - then it must be encrypted . SSHD port number By default, the Zenith SSHD server will use port 22 on a dedicated IP address for a HA deployment and port 2222 on the pre-allocated floating IP for a single node deployment (port 22 is used for regular SSH to configure the node). This can be changed using the following variable, if required: environments/my-site/inventory/group_vars/all/variables.yml zenith_sshd_service_port : 22222","title":"Zenith Application Proxy"},{"location":"configuration/08-zenith/#zenith-application-proxy","text":"The Zenith application proxy is enabled by default in the reference configuration. To disable it, just set: environments/my-site/inventory/group_vars/all/variables.yml azimuth_apps_enabled : no The only piece of configuration that is required for Zenith is a secret key that is used to sign and verify the single-use tokens issued by the registrar (see the Zenith architecture document for details): environments/my-site/inventory/group_vars/all/secrets.yml zenith_registrar_subdomain_token_signing_key : \"\" Tip This key should be a long, random string - at least 32 bytes (256 bits) is recommended. A suitable key can be generated using openssl rand -hex 32 . Danger This key should be kept secret. If you want to keep it in Git - which is recommended - then it must be encrypted .","title":"Zenith Application Proxy"},{"location":"configuration/08-zenith/#sshd-port-number","text":"By default, the Zenith SSHD server will use port 22 on a dedicated IP address for a HA deployment and port 2222 on the pre-allocated floating IP for a single node deployment (port 22 is used for regular SSH to configure the node). This can be changed using the following variable, if required: environments/my-site/inventory/group_vars/all/variables.yml zenith_sshd_service_port : 22222","title":"SSHD port number"},{"location":"configuration/09-community-images/","text":"Community images Azimuth requires a number of specialised images to be available on the target cloud for Cluster-as-a-Service appliances and Kubernetes clusters. Images for Kubernetes and CaaS appliances, with the exception of Slurm, are built using Packer from the definitions in the azimuth-images repository . For Kubernetes, we make use of the recipes from the upstream Cluster API image-builder . Each release of azimuth-images has an associated manifest that describes the images in the release and where to download them from, along with some additional metadata. The Azimuth deployment playbooks are able to consume these manifests. Images for the Slurm cluster appliance are built using Packer from definitions in the slurm-image-builder respository , with builds uploaded here . azimuth-ops is able to download, convert (if required) and then create Glance images on the target cloud from these sources. Images are uploaded as community images meaning they are accessible by all projects in the target cloud, but not included by default when listing images in Horizon, the OpenStack CLI or the OpenStack API. By default, azimuth-ops uploads the set of images that are needed to support Azimuth's functionality and auto-wires them into the correct places for the K3S node, the HA Kubernetes cluster, the default Kubernetes templates and the default Cluster-as-a-Service appliances. Image properties Properties can be set on the uploaded images, if required. The properties are given as strings of the form key=value in the following variable: environments/my-site/inventory/group_vars/all/variables.yml community_images_custom_properties : - 'prop1=value1' - 'prop2=value2' Image conversion Images can be converted from a \"source\" format to a \"target\" format for the target cloud. The majority of images available for download are in qcow2 format, and this is the format in which images built from azimuth-images are distributed. However your cloud may require images to be uploaded in a different format, e.g. raw or vmdk . To specify the target format for your cloud, just set the following (the default is qcow2 ): environments/my-site/inventory/group_vars/all/variables.yml community_images_disk_format : raw When this differs from the source format for an image, azimuth-ops will convert the image using qemu-img convert before uploading it to the target cloud. Disabling community images It is possible to prevent azimuth-ops from uploading any images, even the default ones, by setting the following: environments/my-site/inventory/group_vars/all/variables.yml community_images : {} Warning If community images are disabled you will need to ensure suitable images are uploaded via another mechanism, and the correct variables populated with the image IDs in your Azimuth configuration. See the azimuth-ops roles for more details. Custom images If you want to upload custom images as part of your Azimuth installation, for example to support a custom Cluster-as-a-Service appliance or for older Kubernetes versions, you can use the community_images_extra variable: environments/my-site/inventory/group_vars/all/variables.yml community_images_extra : # Key, used to refer to the image ID debian_11 : # The name of the image to create on the target cloud name : debian-11-generic-amd64-20220711-1073 # The URL of the source image source_url : https://cloud.debian.org/images/cloud/bullseye/20220711-1073/debian-11-generic-amd64-20220711-1073.qcow2 # The disk format of the source image source_disk_format : qcow2 # The container format of the source image container_format : bare The ID of this image can then be referred to elsewhere in your Azimuth configuration using: environments/my-site/inventory/group_vars/all/variables.yml my_custom_caas_appliance_image : \"{{ community_images_image_ids.debian_11 }}\" Warning It is assumed that the name in a community image specification refers to a unique image. azimuth-ops will only download, convert and upload images to the target cloud for names that do not already exist. For this reason, it is recommended to include a timestamp or build reference in the image name in order to identify different images that serve the same purpose (e.g. different builds of the same pipeline).","title":"Community images"},{"location":"configuration/09-community-images/#community-images","text":"Azimuth requires a number of specialised images to be available on the target cloud for Cluster-as-a-Service appliances and Kubernetes clusters. Images for Kubernetes and CaaS appliances, with the exception of Slurm, are built using Packer from the definitions in the azimuth-images repository . For Kubernetes, we make use of the recipes from the upstream Cluster API image-builder . Each release of azimuth-images has an associated manifest that describes the images in the release and where to download them from, along with some additional metadata. The Azimuth deployment playbooks are able to consume these manifests. Images for the Slurm cluster appliance are built using Packer from definitions in the slurm-image-builder respository , with builds uploaded here . azimuth-ops is able to download, convert (if required) and then create Glance images on the target cloud from these sources. Images are uploaded as community images meaning they are accessible by all projects in the target cloud, but not included by default when listing images in Horizon, the OpenStack CLI or the OpenStack API. By default, azimuth-ops uploads the set of images that are needed to support Azimuth's functionality and auto-wires them into the correct places for the K3S node, the HA Kubernetes cluster, the default Kubernetes templates and the default Cluster-as-a-Service appliances.","title":"Community images"},{"location":"configuration/09-community-images/#image-properties","text":"Properties can be set on the uploaded images, if required. The properties are given as strings of the form key=value in the following variable: environments/my-site/inventory/group_vars/all/variables.yml community_images_custom_properties : - 'prop1=value1' - 'prop2=value2'","title":"Image properties"},{"location":"configuration/09-community-images/#image-conversion","text":"Images can be converted from a \"source\" format to a \"target\" format for the target cloud. The majority of images available for download are in qcow2 format, and this is the format in which images built from azimuth-images are distributed. However your cloud may require images to be uploaded in a different format, e.g. raw or vmdk . To specify the target format for your cloud, just set the following (the default is qcow2 ): environments/my-site/inventory/group_vars/all/variables.yml community_images_disk_format : raw When this differs from the source format for an image, azimuth-ops will convert the image using qemu-img convert before uploading it to the target cloud.","title":"Image conversion"},{"location":"configuration/09-community-images/#disabling-community-images","text":"It is possible to prevent azimuth-ops from uploading any images, even the default ones, by setting the following: environments/my-site/inventory/group_vars/all/variables.yml community_images : {} Warning If community images are disabled you will need to ensure suitable images are uploaded via another mechanism, and the correct variables populated with the image IDs in your Azimuth configuration. See the azimuth-ops roles for more details.","title":"Disabling community images"},{"location":"configuration/09-community-images/#custom-images","text":"If you want to upload custom images as part of your Azimuth installation, for example to support a custom Cluster-as-a-Service appliance or for older Kubernetes versions, you can use the community_images_extra variable: environments/my-site/inventory/group_vars/all/variables.yml community_images_extra : # Key, used to refer to the image ID debian_11 : # The name of the image to create on the target cloud name : debian-11-generic-amd64-20220711-1073 # The URL of the source image source_url : https://cloud.debian.org/images/cloud/bullseye/20220711-1073/debian-11-generic-amd64-20220711-1073.qcow2 # The disk format of the source image source_disk_format : qcow2 # The container format of the source image container_format : bare The ID of this image can then be referred to elsewhere in your Azimuth configuration using: environments/my-site/inventory/group_vars/all/variables.yml my_custom_caas_appliance_image : \"{{ community_images_image_ids.debian_11 }}\" Warning It is assumed that the name in a community image specification refers to a unique image. azimuth-ops will only download, convert and upload images to the target cloud for names that do not already exist. For this reason, it is recommended to include a timestamp or build reference in the image name in order to identify different images that serve the same purpose (e.g. different builds of the same pipeline).","title":"Custom images"},{"location":"configuration/10-kubernetes-clusters/","text":"Kubernetes clusters Kubernetes support in Azimuth is implemented using Cluster API with the OpenStack provider . Support for cluster addons is provided by the Cluster API addon provider , which provides functionality for installing Helm charts and additional manifests. Azimuth provides an opinionated interface on top of Cluster API by implementing its own Kubernetes operator . This operator exposes two custom resources which are used by the Azimuth API to manage Kubernetes clusters: clustertemplates.azimuth.stackhpc.com A cluster template represents a \"type\" of Kubernetes cluster. In particular, this is used to provide different Kubernetes versions, but can also be used to provide advanced options, e.g. networking configuration or additional addons that are installed by default on the cluster. Cluster templates can be deprecated, e.g. when a new Kubernetes version is released, resulting in a warning being shown to the user that they should upgrade. clusters.azimuth.stackhpc.com A cluster represents the user-facing definition of a Kubernetes cluster. It references a template, from which the Kubernetes version and other advanced options are taken, but allows the user to specify one or more node groups and toggle a few simple options such as auto-healing and whether the monitoring stack is deployed on the cluster. For each Cluster , the operator manages a release of the openstack-cluster Helm chart . The Helm release in turn manages Cluster API resources for the cluster, including addons. To get the values for the release, the operator first derives some values from the Cluster object which are merged with the values defined in the referenced template. The result of that merge is then merged with any global configuration that has been specified before being passed to Helm. Disabling Kubernetes Kubernetes support is enabled by default in the reference configuration. To disable it, just set: environments/my-site/inventory/group_vars/all/variables.yml azimuth_kubernetes_enabled : no Kubernetes configuration Kubernetes configuration is very similar for both the Azimuth HA cluster and tenant Kubernetes clusters, since both are deployed using Cluster API. The Kubernetes configuration section discusses the possible options for networking, volumes and availability zones in detail. Cluster templates azimuth-ops is able to manage the available Kubernetes cluster templates using the variable azimuth_capi_operator_cluster_templates . This variable is a dictionary that maps cluster template names to their specifications, and represents the current (i.e. not deprecated) cluster templates. azimuth-ops will not remove cluster templates, but it will mark any templates that are not present in this variable as deprecated. By default, azimuth-ops will ensure a cluster template is present for the latest patch version of each Kubernetes release that is currently maintained. These templates are configured so that Kubernetes nodes will go onto the Azimuth portal-internal network for the project in which the cluster is being deployed. Disabling the default templates To disable the default templates, just set the following: environments/my-site/inventory/group_vars/all/variables.yml azimuth_capi_operator_cluster_templates_default : {} Custom cluster templates If you want to include custom cluster templates in addition to the default templates, e.g. for advanced networking configurations, you can specify them using the variable azimuth_capi_operator_cluster_templates_extra . For example, the following demonstrates how to configure a template where the cluster worker nodes have two networks attached - the control plane nodes and workers are all attached to the Azimuth internal network but the workers are attached to an additional SR-IOV capable network: environments/my-site/inventory/group_vars/all/variables.yml azimuth_capi_operator_cluster_templates_extra : # The index in the dict is the template name kube-1-24-2-multinet : # A human-readable label for the template label : v1.24.2 / multinet # A brief description of the template description : >- Kubernetes 1.24.2 with HA control plane and high-performance networking. # Values for the openstack-cluster Helm chart values : # Specify the image and version for the cluster # These are the only required values kubernetesVersion : 1.24.2 machineImageId : \"{{ community_images_image_ids.kube_1_24 }}\" # Use the portal-internal network as the main cluster network clusterNetworking : internalNetwork : networkFilter : tags : portal-internal # Configure an extra SR-IOV port on worker nodes using an SR-IOV capable network nodeGroupDefaults : machineNetworking : ports : - {} - network : tags : sriov-vlan securityGroups : [] vnicType : direct Harbor registry azimuth-ops is able to manage a Harbor registry as part of an Azimuth installation. This registry is primarily used as a proxy cache to limit the number of times that images that are pulled directly from the internet. If enabled, the Harbor registry will be made available at registry. , e.g. registry.azimuth.example.org and will be configured for tenant clusters by default. By default, a single proxy cache is defined for Docker Hub in order to mitigate rate limiting . Tip If you have a Docker Hub mirror available, you can configure Kubernetes clusters to use it instead of deploying Harbor. In this case, you should disable Harbor by setting: harbor_enabled : no Harbor is enabled by default, and requires two secrets to be set: environments/my-site/inventory/group_vars/all/secrets.yml # The admin password for Harbor harbor_admin_password : \"\" # The secret key for Harbor # This MUST be exactly 16 alphanumeric characters harbor_secret_key : \"\" Danger These values should be kept secret. If you want to keep them in Git - which is recommended - then they must be encrypted . Disabling Harbor The Harbor registry can be disabled entirely: environments/my-site/inventory/group_vars/all/variables.yml harbor_enabled : no ### Additional proxy caches By default, only Docker Hub has a proxy cache. Additional proxy caches can be configured for other registries, if desired : ``` yaml title=\"environments/my-site/inventory/group_vars/all/variables.yml\" harbor_proxy_cache_extra_projects : quay.io : # The name of the project in Harbor name : quay-public # The type of the upstream registry, e.g.: # aws-ecr # azure-acr # docker-hub # docker-registry # gitlab # google-gcr # harbor # jfrog-artifactory # quay-io type : quay-io # The endpoint URL for the registry url : https://quay.io Warning Defining authentication for the upstream registries is not currently supported, i.e. only public repositories can be proxied.","title":"Kubernetes clusters"},{"location":"configuration/10-kubernetes-clusters/#kubernetes-clusters","text":"Kubernetes support in Azimuth is implemented using Cluster API with the OpenStack provider . Support for cluster addons is provided by the Cluster API addon provider , which provides functionality for installing Helm charts and additional manifests. Azimuth provides an opinionated interface on top of Cluster API by implementing its own Kubernetes operator . This operator exposes two custom resources which are used by the Azimuth API to manage Kubernetes clusters: clustertemplates.azimuth.stackhpc.com A cluster template represents a \"type\" of Kubernetes cluster. In particular, this is used to provide different Kubernetes versions, but can also be used to provide advanced options, e.g. networking configuration or additional addons that are installed by default on the cluster. Cluster templates can be deprecated, e.g. when a new Kubernetes version is released, resulting in a warning being shown to the user that they should upgrade. clusters.azimuth.stackhpc.com A cluster represents the user-facing definition of a Kubernetes cluster. It references a template, from which the Kubernetes version and other advanced options are taken, but allows the user to specify one or more node groups and toggle a few simple options such as auto-healing and whether the monitoring stack is deployed on the cluster. For each Cluster , the operator manages a release of the openstack-cluster Helm chart . The Helm release in turn manages Cluster API resources for the cluster, including addons. To get the values for the release, the operator first derives some values from the Cluster object which are merged with the values defined in the referenced template. The result of that merge is then merged with any global configuration that has been specified before being passed to Helm.","title":"Kubernetes clusters"},{"location":"configuration/10-kubernetes-clusters/#disabling-kubernetes","text":"Kubernetes support is enabled by default in the reference configuration. To disable it, just set: environments/my-site/inventory/group_vars/all/variables.yml azimuth_kubernetes_enabled : no","title":"Disabling Kubernetes"},{"location":"configuration/10-kubernetes-clusters/#kubernetes-configuration","text":"Kubernetes configuration is very similar for both the Azimuth HA cluster and tenant Kubernetes clusters, since both are deployed using Cluster API. The Kubernetes configuration section discusses the possible options for networking, volumes and availability zones in detail.","title":"Kubernetes configuration"},{"location":"configuration/10-kubernetes-clusters/#cluster-templates","text":"azimuth-ops is able to manage the available Kubernetes cluster templates using the variable azimuth_capi_operator_cluster_templates . This variable is a dictionary that maps cluster template names to their specifications, and represents the current (i.e. not deprecated) cluster templates. azimuth-ops will not remove cluster templates, but it will mark any templates that are not present in this variable as deprecated. By default, azimuth-ops will ensure a cluster template is present for the latest patch version of each Kubernetes release that is currently maintained. These templates are configured so that Kubernetes nodes will go onto the Azimuth portal-internal network for the project in which the cluster is being deployed.","title":"Cluster templates"},{"location":"configuration/10-kubernetes-clusters/#disabling-the-default-templates","text":"To disable the default templates, just set the following: environments/my-site/inventory/group_vars/all/variables.yml azimuth_capi_operator_cluster_templates_default : {}","title":"Disabling the default templates"},{"location":"configuration/10-kubernetes-clusters/#custom-cluster-templates","text":"If you want to include custom cluster templates in addition to the default templates, e.g. for advanced networking configurations, you can specify them using the variable azimuth_capi_operator_cluster_templates_extra . For example, the following demonstrates how to configure a template where the cluster worker nodes have two networks attached - the control plane nodes and workers are all attached to the Azimuth internal network but the workers are attached to an additional SR-IOV capable network: environments/my-site/inventory/group_vars/all/variables.yml azimuth_capi_operator_cluster_templates_extra : # The index in the dict is the template name kube-1-24-2-multinet : # A human-readable label for the template label : v1.24.2 / multinet # A brief description of the template description : >- Kubernetes 1.24.2 with HA control plane and high-performance networking. # Values for the openstack-cluster Helm chart values : # Specify the image and version for the cluster # These are the only required values kubernetesVersion : 1.24.2 machineImageId : \"{{ community_images_image_ids.kube_1_24 }}\" # Use the portal-internal network as the main cluster network clusterNetworking : internalNetwork : networkFilter : tags : portal-internal # Configure an extra SR-IOV port on worker nodes using an SR-IOV capable network nodeGroupDefaults : machineNetworking : ports : - {} - network : tags : sriov-vlan securityGroups : [] vnicType : direct","title":"Custom cluster templates"},{"location":"configuration/10-kubernetes-clusters/#harbor-registry","text":"azimuth-ops is able to manage a Harbor registry as part of an Azimuth installation. This registry is primarily used as a proxy cache to limit the number of times that images that are pulled directly from the internet. If enabled, the Harbor registry will be made available at registry. , e.g. registry.azimuth.example.org and will be configured for tenant clusters by default. By default, a single proxy cache is defined for Docker Hub in order to mitigate rate limiting . Tip If you have a Docker Hub mirror available, you can configure Kubernetes clusters to use it instead of deploying Harbor. In this case, you should disable Harbor by setting: harbor_enabled : no Harbor is enabled by default, and requires two secrets to be set: environments/my-site/inventory/group_vars/all/secrets.yml # The admin password for Harbor harbor_admin_password : \"\" # The secret key for Harbor # This MUST be exactly 16 alphanumeric characters harbor_secret_key : \"\" Danger These values should be kept secret. If you want to keep them in Git - which is recommended - then they must be encrypted .","title":"Harbor registry"},{"location":"configuration/10-kubernetes-clusters/#disabling-harbor","text":"The Harbor registry can be disabled entirely: environments/my-site/inventory/group_vars/all/variables.yml harbor_enabled : no ### Additional proxy caches By default, only Docker Hub has a proxy cache. Additional proxy caches can be configured for other registries, if desired : ``` yaml title=\"environments/my-site/inventory/group_vars/all/variables.yml\" harbor_proxy_cache_extra_projects : quay.io : # The name of the project in Harbor name : quay-public # The type of the upstream registry, e.g.: # aws-ecr # azure-acr # docker-hub # docker-registry # gitlab # google-gcr # harbor # jfrog-artifactory # quay-io type : quay-io # The endpoint URL for the registry url : https://quay.io Warning Defining authentication for the upstream registries is not currently supported, i.e. only public repositories can be proxied.","title":"Disabling Harbor"},{"location":"configuration/11-kubernetes-apps/","text":"Kubernetes apps Azimuth allows operators to provide a catalog of applications (apps) that users are able to install onto their Kubernetes clusters via the Azimuth user interface. Multiple apps can be installed on the same Kubernetes cluster, and each app gets its own namespace. A Kubernetes app in Azimuth essentially consists of a Helm chart . Azimuth manages specially annotated instances of the HelmRelease resource from the Cluster API addon provider to install and upgrade apps on the target cluster. These apps can be integrated with Zenith to expose services to the user without requiring the use of LoadBalancer services or Kubernetes ingress . The available apps and the available versions of those apps are determined by instances of a custom resource provided by the Azimuth Kubernetes operator - apptemplates.azimuth.stackhpc.com - which references a chart in a Helm chart repository . Azimuth uses the chart metadata to generate the user interface for the app template, and the values schema for the chart to generate a form for collecting input from the user. Azimuth also renders the output of the NOTES.txt file in the user interface, so this can be used to describe how to consume the application. Warning If the chart does not have a values schema, the generated form will be blank and the chart will be deployed with the default values. Tip In addition, a file called azimuth-ui.schema.yaml can be included to apply some small customisations to the generated form, like selecting different controls. See the azimuth-charts for examples. Default app templates Azimuth comes with the following app templates enabled by default: jupyterhub Allows the user to deploy JupyterHub on their clusters. JupyterHub provides a multi-user environment for using Jupyter notebooks where each user gets their own dynamically-provisioned notebook server and storage. The Jupyter notebook interface is exposed using Zenith . daskhub A JupyterHub instance with Dask integration. Dask is a library that aims to simplify the process of scaling data-intensive Python applications, such as those using Numpy or pandas . DaskHub installs Dask Gateway alongside JupyterHub and configures them so that they integrate seamlessly. This allows users to easily create Dask clusters in their notebooks that scale out by creating pods on the underlying Kubernetes cluster. As with jupyterhub above, the notebook interface is exposed using Zenith. kubeflow Allows users to deploy the Kubeflow machine learning toolkit on their clusters. Kubeflow provides an interface for easily accessing best-of-breed machine learning systems using Jupyter notebooks and TensorFlow . These can be disabled by setting the following variables: environments/my-site/inventory/group_vars/all/variables.yml azimuth_capi_operator_app_templates_jupyterhub_enabled : false azimuth_capi_operator_app_templates_daskhub_enabled : false azimuth_capi_operator_app_templates_kubeflow_enabled : false Custom app templates If you have Helm charts that you want to make available as apps, you can define them as follows: environments/my-site/inventory/group_vars/all/variables.yml azimuth_capi_operator_app_templates_extra : # The key is the name of the app template my-custom-app : # This is the only required field, and determines the chart that is used chart : # The chart repository containing the chart repo : https://my.company.org/helm-charts # The name of the chart that the template is for name : my-custom-app By default, Azimuth will use the last 5 stable versions of the chart (i.e. versions without a prerelease part, see semver.org ) and the name , icon and description from the Chart.yaml file in the chart to build the user interface. A chart annotation is also supported to define the human-readable label: my-chart/Chart.yaml annotations : azimuth.stackhpc.com/label : My Custom App This behaviour can be customised for each app template using the following optional fields: label The human-readable label for the app template, instead of the annotation from Chart.yaml . logo The URL of the logo for the app template, instead of the icon from Chart.yaml . description A short description of the app template, instead of the description from Chart.yaml . versionRange Default: >=0.0.0 (stable versions only). The range of chart versions to consider. Must be a comma-separated list of constraints, where each constraint is an operator followed by a SemVer version . The supported operators are == , != , > , >= , < and <= . Prerelease versions are only considered if the lower bound includes a prerelease part. If no lower bound is given, an implicit lower bound of >=0.0.0 is used. Some examples of valid ranges: >=0.0.0-0 - all versions, including prerelease versions like 1.0.0-alpha.1 < 2.0.0 - all stable versions matching 0.X.Y and 1.X.Y (implicit lower bound) >=1.0.0, < 3.0.0,!=2.1.5 - all stable versions matching 1.X.Y or 2.X.Y except 2.1.5 (useful for excluding specific versions with known issues) keepVersions Default: 5. The number of versions to keep. This is used to limit the size of the AppTemplate resource, because etcd has limits on the maximum size of objects (usually approx. 1MB). This will need to be smaller if the chart has a large values schema. syncFrequency Default: 86400 (24 hours). The number of seconds to wait before checking for new versions of the chart. defaultValues Default: {} . Default values for deployments of the app, on top of the chart defaults. Zenith integration When Zenith is enabled , every Kubernetes cluster created by Azimuth has an instance of the Zenith operator watching it. This operator makes two Kubernetes custom resources available that can be used to expose a Kubernetes service to users without using type: NodePort , type: LoadBalancer or Kubernetes ingress : reservations.zenith.stackhpc.com Represents the reservation of a Zenith domain, and results in the generation of a Kubernetes secret containing an SSH keypair associated with the allocated domain. clients.zenith.stackhpc.com Defines a Zenith client, pointing at a Zenith reservation and upstream Kubernetes service. In addition, services can benefit from the project-level authentication and authorization that is performed by Zenith at it's proxy to prevent unauthorised users from accessing the service. The Zenith services associated with an app are monitored and made available in the Azimuth user interface, making the apps easy to use. Azimuth supports the following annotations on the reservation to determine how the service is rendered in the user interface: annotations : azimuth.stackhpc.com/service-label : \"My Fancy Service\" azimuth.stackhpc.com/service-icon-url : https://my.company.org/images/my-fancy-service-icon.png It is possible to add Zenith integration to an existing chart by creating a new parent chart with the existing chart as a dependency . You can define templates for the Zenith resources in the parent chart, pointing at services created by the child chart. This is the approach taken by the azimuth-charts that provide the default jupyterhub and daskhub apps.","title":"Kubernetes apps"},{"location":"configuration/11-kubernetes-apps/#kubernetes-apps","text":"Azimuth allows operators to provide a catalog of applications (apps) that users are able to install onto their Kubernetes clusters via the Azimuth user interface. Multiple apps can be installed on the same Kubernetes cluster, and each app gets its own namespace. A Kubernetes app in Azimuth essentially consists of a Helm chart . Azimuth manages specially annotated instances of the HelmRelease resource from the Cluster API addon provider to install and upgrade apps on the target cluster. These apps can be integrated with Zenith to expose services to the user without requiring the use of LoadBalancer services or Kubernetes ingress . The available apps and the available versions of those apps are determined by instances of a custom resource provided by the Azimuth Kubernetes operator - apptemplates.azimuth.stackhpc.com - which references a chart in a Helm chart repository . Azimuth uses the chart metadata to generate the user interface for the app template, and the values schema for the chart to generate a form for collecting input from the user. Azimuth also renders the output of the NOTES.txt file in the user interface, so this can be used to describe how to consume the application. Warning If the chart does not have a values schema, the generated form will be blank and the chart will be deployed with the default values. Tip In addition, a file called azimuth-ui.schema.yaml can be included to apply some small customisations to the generated form, like selecting different controls. See the azimuth-charts for examples.","title":"Kubernetes apps"},{"location":"configuration/11-kubernetes-apps/#default-app-templates","text":"Azimuth comes with the following app templates enabled by default: jupyterhub Allows the user to deploy JupyterHub on their clusters. JupyterHub provides a multi-user environment for using Jupyter notebooks where each user gets their own dynamically-provisioned notebook server and storage. The Jupyter notebook interface is exposed using Zenith . daskhub A JupyterHub instance with Dask integration. Dask is a library that aims to simplify the process of scaling data-intensive Python applications, such as those using Numpy or pandas . DaskHub installs Dask Gateway alongside JupyterHub and configures them so that they integrate seamlessly. This allows users to easily create Dask clusters in their notebooks that scale out by creating pods on the underlying Kubernetes cluster. As with jupyterhub above, the notebook interface is exposed using Zenith. kubeflow Allows users to deploy the Kubeflow machine learning toolkit on their clusters. Kubeflow provides an interface for easily accessing best-of-breed machine learning systems using Jupyter notebooks and TensorFlow . These can be disabled by setting the following variables: environments/my-site/inventory/group_vars/all/variables.yml azimuth_capi_operator_app_templates_jupyterhub_enabled : false azimuth_capi_operator_app_templates_daskhub_enabled : false azimuth_capi_operator_app_templates_kubeflow_enabled : false","title":"Default app templates"},{"location":"configuration/11-kubernetes-apps/#custom-app-templates","text":"If you have Helm charts that you want to make available as apps, you can define them as follows: environments/my-site/inventory/group_vars/all/variables.yml azimuth_capi_operator_app_templates_extra : # The key is the name of the app template my-custom-app : # This is the only required field, and determines the chart that is used chart : # The chart repository containing the chart repo : https://my.company.org/helm-charts # The name of the chart that the template is for name : my-custom-app By default, Azimuth will use the last 5 stable versions of the chart (i.e. versions without a prerelease part, see semver.org ) and the name , icon and description from the Chart.yaml file in the chart to build the user interface. A chart annotation is also supported to define the human-readable label: my-chart/Chart.yaml annotations : azimuth.stackhpc.com/label : My Custom App This behaviour can be customised for each app template using the following optional fields: label The human-readable label for the app template, instead of the annotation from Chart.yaml . logo The URL of the logo for the app template, instead of the icon from Chart.yaml . description A short description of the app template, instead of the description from Chart.yaml . versionRange Default: >=0.0.0 (stable versions only). The range of chart versions to consider. Must be a comma-separated list of constraints, where each constraint is an operator followed by a SemVer version . The supported operators are == , != , > , >= , < and <= . Prerelease versions are only considered if the lower bound includes a prerelease part. If no lower bound is given, an implicit lower bound of >=0.0.0 is used. Some examples of valid ranges: >=0.0.0-0 - all versions, including prerelease versions like 1.0.0-alpha.1 < 2.0.0 - all stable versions matching 0.X.Y and 1.X.Y (implicit lower bound) >=1.0.0, < 3.0.0,!=2.1.5 - all stable versions matching 1.X.Y or 2.X.Y except 2.1.5 (useful for excluding specific versions with known issues) keepVersions Default: 5. The number of versions to keep. This is used to limit the size of the AppTemplate resource, because etcd has limits on the maximum size of objects (usually approx. 1MB). This will need to be smaller if the chart has a large values schema. syncFrequency Default: 86400 (24 hours). The number of seconds to wait before checking for new versions of the chart. defaultValues Default: {} . Default values for deployments of the app, on top of the chart defaults.","title":"Custom app templates"},{"location":"configuration/11-kubernetes-apps/#zenith-integration","text":"When Zenith is enabled , every Kubernetes cluster created by Azimuth has an instance of the Zenith operator watching it. This operator makes two Kubernetes custom resources available that can be used to expose a Kubernetes service to users without using type: NodePort , type: LoadBalancer or Kubernetes ingress : reservations.zenith.stackhpc.com Represents the reservation of a Zenith domain, and results in the generation of a Kubernetes secret containing an SSH keypair associated with the allocated domain. clients.zenith.stackhpc.com Defines a Zenith client, pointing at a Zenith reservation and upstream Kubernetes service. In addition, services can benefit from the project-level authentication and authorization that is performed by Zenith at it's proxy to prevent unauthorised users from accessing the service. The Zenith services associated with an app are monitored and made available in the Azimuth user interface, making the apps easy to use. Azimuth supports the following annotations on the reservation to determine how the service is rendered in the user interface: annotations : azimuth.stackhpc.com/service-label : \"My Fancy Service\" azimuth.stackhpc.com/service-icon-url : https://my.company.org/images/my-fancy-service-icon.png It is possible to add Zenith integration to an existing chart by creating a new parent chart with the existing chart as a dependency . You can define templates for the Zenith resources in the parent chart, pointing at services created by the child chart. This is the approach taken by the azimuth-charts that provide the default jupyterhub and daskhub apps.","title":"Zenith integration"},{"location":"configuration/12-caas/","text":"Cluster-as-a-Service (CaaS) Cluster-as-a-Service (CaaS) in Azimuth allows self-service platforms to be provided to users that are deployed and configured using a combination of Ansible , Terraform and Packer , stored in a git repository. CaaS support in Azimuth is implemented by the Azimuth CaaS operator . The operator executes Ansible playbooks using ansible-runner in response to Azimuth creating and modifying instances of the custom resources that it exposes: clustertypes.caas.azimuth.stackhpc.com A cluster type represents an available appliance, e.g. \"workstation\" or \"Slurm cluster\". This CRD defines the git repository, version and playbook that will be used to deploy clusters of the specified type, along with metadata for generating the UI and any global variable such as image UUIDs. clusters.caas.azimuth.stackhpc.com A cluster represents the combination of a cluster type with values collected from the user. The CaaS operator tracks the status of the ansible-runner executions for the cluster and reports it on the CRD for Azimuth to consume. Disabling CaaS CaaS support is enabled by default in the reference configuration. To disable it, just set: environments/my-site/inventory/group_vars/all/variables.yml azimuth_clusters_enabled : no Removing legacy AWX components If you are migrating from an installation using the previous AWX implementation then Azimuth itself will be reconfigured to use the CaaS CRD, but by default the AWX installation will be left untouched in order to allow any legacy apps to be cleaned up. To remove AWX components, an additional variable must be set when the provision playbook is executed: ansible-playbook stackhpc.azimuth_ops.provision -e awx_purge = yes StackHPC Appliances By default, three appliances maintained by StackHPC are made available - the Slurm appliance , the Linux Workstation appliance and the repo2docker appliance . Slurm appliance The Slurm appliance allows users to deploy Slurm clusters for running batch workloads. The clusters include the Open OnDemand web interface and a monitoring stack with web dashboards, both of which are exposed using Zenith. To disable the Slurm appliance, use the following: environments/my-site/inventory/group_vars/all/variables.yml azimuth_caas_stackhpc_slurm_appliance_enabled : no The Slurm appliance requires the following configuration: environments/my-site/inventory/group_vars/all/variables.yml # The name of a flavor to use for Slurm login nodes # A flavor with at least 2 CPUs and 4GB RAM should be used azimuth_caas_stackhpc_slurm_appliance_login_flavor_name : \"\" # The name of a flavor to use for Slurm control nodes # A flavor with at least 2 CPUs and 4GB RAM should be used azimuth_caas_stackhpc_slurm_appliance_control_flavor_name : \"\" Linux Workstation appliance The Linux Workstation appliance allows users to provision a workstation that is accessible via a web-browser using Apache Guacamole . Guacamole provides a web-based virtual desktop and a console, and is exposed using Zenith. A simple monitoring stack is also available, exposed via Zenith. To disable the Linux Workstation appliance, use the following: environments/my-site/inventory/group_vars/all/variables.yml azimuth_caas_stackhpc_workstation_enabled : no repo2docker appliance The repo2docker appliance allows users to deploy a Jupyter Notebook server, exposed via Zenith, from a repo2docker compliant repository. A simple monitoring stack is also available, exposed via Zenith. To disable the repo2docker appliance, use the following: environments/my-site/inventory/group_vars/all/variables.yml azimuth_caas_stackhpc_repo2docker_enabled : no Custom appliances It is possible to make custom appliances available in the Azimuth interface for users to deploy. For more information on building a CaaS-compatible appliance, please see the sample appliance . Custom appliances can be easily specified in your Azimuth configuration. For example, the following will configure the sample appliance as an available cluster type: environments/my-site/inventory/group_vars/all/variables.yml azimuth_caas_cluster_templates_overrides : sample-appliance : # The git URL of the appliance gitUrl : https://github.com/stackhpc/azimuth-sample-appliance.git # The branch, tag or commit id to use # For production, it is recommended to use a fixed tag or commit ID gitVersion : main # The name of the playbook to use playbook : sample-appliance.yml # The URL of the metadata file uiMetaUrl : https://raw.githubusercontent.com/stackhpc/azimuth-sample-appliance/main/ui-meta/sample-appliance.yaml # Dict of extra variables for the appliance extraVars : # Use the ID of an Ubuntu 20.04 image that we asked azimuth-ops to upload cluster_image : \"{{ community_images_image_ids.ubuntu_2004_20220712 }}\"","title":"Cluster-as-a-Service (CaaS)"},{"location":"configuration/12-caas/#cluster-as-a-service-caas","text":"Cluster-as-a-Service (CaaS) in Azimuth allows self-service platforms to be provided to users that are deployed and configured using a combination of Ansible , Terraform and Packer , stored in a git repository. CaaS support in Azimuth is implemented by the Azimuth CaaS operator . The operator executes Ansible playbooks using ansible-runner in response to Azimuth creating and modifying instances of the custom resources that it exposes: clustertypes.caas.azimuth.stackhpc.com A cluster type represents an available appliance, e.g. \"workstation\" or \"Slurm cluster\". This CRD defines the git repository, version and playbook that will be used to deploy clusters of the specified type, along with metadata for generating the UI and any global variable such as image UUIDs. clusters.caas.azimuth.stackhpc.com A cluster represents the combination of a cluster type with values collected from the user. The CaaS operator tracks the status of the ansible-runner executions for the cluster and reports it on the CRD for Azimuth to consume.","title":"Cluster-as-a-Service (CaaS)"},{"location":"configuration/12-caas/#disabling-caas","text":"CaaS support is enabled by default in the reference configuration. To disable it, just set: environments/my-site/inventory/group_vars/all/variables.yml azimuth_clusters_enabled : no","title":"Disabling CaaS"},{"location":"configuration/12-caas/#removing-legacy-awx-components","text":"If you are migrating from an installation using the previous AWX implementation then Azimuth itself will be reconfigured to use the CaaS CRD, but by default the AWX installation will be left untouched in order to allow any legacy apps to be cleaned up. To remove AWX components, an additional variable must be set when the provision playbook is executed: ansible-playbook stackhpc.azimuth_ops.provision -e awx_purge = yes","title":"Removing legacy AWX components"},{"location":"configuration/12-caas/#stackhpc-appliances","text":"By default, three appliances maintained by StackHPC are made available - the Slurm appliance , the Linux Workstation appliance and the repo2docker appliance .","title":"StackHPC Appliances"},{"location":"configuration/12-caas/#slurm-appliance","text":"The Slurm appliance allows users to deploy Slurm clusters for running batch workloads. The clusters include the Open OnDemand web interface and a monitoring stack with web dashboards, both of which are exposed using Zenith. To disable the Slurm appliance, use the following: environments/my-site/inventory/group_vars/all/variables.yml azimuth_caas_stackhpc_slurm_appliance_enabled : no The Slurm appliance requires the following configuration: environments/my-site/inventory/group_vars/all/variables.yml # The name of a flavor to use for Slurm login nodes # A flavor with at least 2 CPUs and 4GB RAM should be used azimuth_caas_stackhpc_slurm_appliance_login_flavor_name : \"\" # The name of a flavor to use for Slurm control nodes # A flavor with at least 2 CPUs and 4GB RAM should be used azimuth_caas_stackhpc_slurm_appliance_control_flavor_name : \"\"","title":"Slurm appliance"},{"location":"configuration/12-caas/#linux-workstation-appliance","text":"The Linux Workstation appliance allows users to provision a workstation that is accessible via a web-browser using Apache Guacamole . Guacamole provides a web-based virtual desktop and a console, and is exposed using Zenith. A simple monitoring stack is also available, exposed via Zenith. To disable the Linux Workstation appliance, use the following: environments/my-site/inventory/group_vars/all/variables.yml azimuth_caas_stackhpc_workstation_enabled : no","title":"Linux Workstation appliance"},{"location":"configuration/12-caas/#repo2docker-appliance","text":"The repo2docker appliance allows users to deploy a Jupyter Notebook server, exposed via Zenith, from a repo2docker compliant repository. A simple monitoring stack is also available, exposed via Zenith. To disable the repo2docker appliance, use the following: environments/my-site/inventory/group_vars/all/variables.yml azimuth_caas_stackhpc_repo2docker_enabled : no","title":"repo2docker appliance"},{"location":"configuration/12-caas/#custom-appliances","text":"It is possible to make custom appliances available in the Azimuth interface for users to deploy. For more information on building a CaaS-compatible appliance, please see the sample appliance . Custom appliances can be easily specified in your Azimuth configuration. For example, the following will configure the sample appliance as an available cluster type: environments/my-site/inventory/group_vars/all/variables.yml azimuth_caas_cluster_templates_overrides : sample-appliance : # The git URL of the appliance gitUrl : https://github.com/stackhpc/azimuth-sample-appliance.git # The branch, tag or commit id to use # For production, it is recommended to use a fixed tag or commit ID gitVersion : main # The name of the playbook to use playbook : sample-appliance.yml # The URL of the metadata file uiMetaUrl : https://raw.githubusercontent.com/stackhpc/azimuth-sample-appliance/main/ui-meta/sample-appliance.yaml # Dict of extra variables for the appliance extraVars : # Use the ID of an Ubuntu 20.04 image that we asked azimuth-ops to upload cluster_image : \"{{ community_images_image_ids.ubuntu_2004_20220712 }}\"","title":"Custom appliances"},{"location":"configuration/13-monitoring/","text":"Monitoring and alerting Azimuth installations come with a monitoring and alerting stack that uses Prometheus to collect metrics on various components of the Kubernetes cluster and the Azimuth components running on it, Alertmanager to produce alerts based on those metrics and Grafana to visualise the metrics using a curated set of dashboards. HA installations also include a log aggregation stack using Loki and Promtail that collects logs from all the pods running on the cluster and the systemd services on each cluster node. These logs are available in a dashboard in Grafana, where they can be filtered and searched. In addition to the monitoring and alerting stack, several additional dashboards are installed: The Kubernetes dashboard for browsing the current state of Kubernetes resources. The Helm dashboard for browsing the current state of Helm releases. The Consul UI for browsing the Consul state (used by Cluster-as-a-Service and Zenith). The ARA Records Ansible (ARA) web interface for browsing the Ansible playbook runs that have been recorded for operations on Cluster-as-a-Service appliances. All the dashboards that access Kubernetes resources are configured to be read-only. Accessing web interfaces The monitoring and alerting web dashboards are exposed as subdomains under the ingress_base_domain : grafana for the Grafana dashboards prometheus for the Prometheus web interface alertmanager for the Alertmanager web interface consul for the Consul UI ara for the ARA web interface helm for the Helm dashboard kubernetes for the Kubernetes dashboard The dashboards are protected by a username and password (using HTTP Basic Auth ). The username is admin and a strong password must be set in your configuration: environments/my-site/inventory/group_vars/all/secrets.yml admin_dashboard_ingress_basic_auth_password : \"\" Sensitive information The dashboards allow read-only access to the internals of your Azimuth installation. As such you should ensure that a strong password is used, and take care when sharing it. Danger This password should be kept secret. If you want to keep the password in Git - which is recommended - then it must be encrypted . Persistence and retention Note Persistence is only configured for HA deployments. In order for metrics, alert state (e.g. silences) and logs to persist across pod restarts, we must configure Prometheus, Alertmanager and Loki to use persistent volumes to store their data. This is configured by default in an Azimuth HA installation, but you may wish to tweak the retention periods and/or volume sizes based on your requirements and/or observed usage. The following variables, shown with their default values, control the retention periods and volume sizes for Alertmanager, Prometheus and Loki: environments/my-site/inventory/group_vars/all/variables.yml # Alertmanager retention and volume size capi_cluster_addons_monitoring_alertmanager_retention : 168h capi_cluster_addons_monitoring_alertmanager_volume_size : 10Gi # Prometheus retention and volume size capi_cluster_addons_monitoring_prometheus_retention : 90d capi_cluster_addons_monitoring_prometheus_volume_size : 10Gi # Loki retention and volume size capi_cluster_addons_monitoring_loki_retention : 744h capi_cluster_addons_monitoring_loki_volume_size : 10Gi Danger Volumes can only be increased in size. Any attempt to reduce the size of a volume will be rejected. Slack alerts If your organisation uses Slack , Alertmanager can be configured to send alerts to a Slack channel using an Incoming Webhook . To enable Slack alerts, you must first create a webhook . This should result in a URL of the form: https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX This URL should be placed in the following variable to allow Azimuth's Alertmanager to send alerts to Slack: environments/my-site/inventory/group_vars/all/secrets.yml alertmanager_config_slack_webhook_url : https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX Danger The webhook URL should be kept secret. If you want to keep it in Git - which is recommended - then it must be encrypted .","title":"Monitoring and alerting"},{"location":"configuration/13-monitoring/#monitoring-and-alerting","text":"Azimuth installations come with a monitoring and alerting stack that uses Prometheus to collect metrics on various components of the Kubernetes cluster and the Azimuth components running on it, Alertmanager to produce alerts based on those metrics and Grafana to visualise the metrics using a curated set of dashboards. HA installations also include a log aggregation stack using Loki and Promtail that collects logs from all the pods running on the cluster and the systemd services on each cluster node. These logs are available in a dashboard in Grafana, where they can be filtered and searched. In addition to the monitoring and alerting stack, several additional dashboards are installed: The Kubernetes dashboard for browsing the current state of Kubernetes resources. The Helm dashboard for browsing the current state of Helm releases. The Consul UI for browsing the Consul state (used by Cluster-as-a-Service and Zenith). The ARA Records Ansible (ARA) web interface for browsing the Ansible playbook runs that have been recorded for operations on Cluster-as-a-Service appliances. All the dashboards that access Kubernetes resources are configured to be read-only.","title":"Monitoring and alerting"},{"location":"configuration/13-monitoring/#accessing-web-interfaces","text":"The monitoring and alerting web dashboards are exposed as subdomains under the ingress_base_domain : grafana for the Grafana dashboards prometheus for the Prometheus web interface alertmanager for the Alertmanager web interface consul for the Consul UI ara for the ARA web interface helm for the Helm dashboard kubernetes for the Kubernetes dashboard The dashboards are protected by a username and password (using HTTP Basic Auth ). The username is admin and a strong password must be set in your configuration: environments/my-site/inventory/group_vars/all/secrets.yml admin_dashboard_ingress_basic_auth_password : \"\" Sensitive information The dashboards allow read-only access to the internals of your Azimuth installation. As such you should ensure that a strong password is used, and take care when sharing it. Danger This password should be kept secret. If you want to keep the password in Git - which is recommended - then it must be encrypted .","title":"Accessing web interfaces"},{"location":"configuration/13-monitoring/#persistence-and-retention","text":"Note Persistence is only configured for HA deployments. In order for metrics, alert state (e.g. silences) and logs to persist across pod restarts, we must configure Prometheus, Alertmanager and Loki to use persistent volumes to store their data. This is configured by default in an Azimuth HA installation, but you may wish to tweak the retention periods and/or volume sizes based on your requirements and/or observed usage. The following variables, shown with their default values, control the retention periods and volume sizes for Alertmanager, Prometheus and Loki: environments/my-site/inventory/group_vars/all/variables.yml # Alertmanager retention and volume size capi_cluster_addons_monitoring_alertmanager_retention : 168h capi_cluster_addons_monitoring_alertmanager_volume_size : 10Gi # Prometheus retention and volume size capi_cluster_addons_monitoring_prometheus_retention : 90d capi_cluster_addons_monitoring_prometheus_volume_size : 10Gi # Loki retention and volume size capi_cluster_addons_monitoring_loki_retention : 744h capi_cluster_addons_monitoring_loki_volume_size : 10Gi Danger Volumes can only be increased in size. Any attempt to reduce the size of a volume will be rejected.","title":"Persistence and retention"},{"location":"configuration/13-monitoring/#slack-alerts","text":"If your organisation uses Slack , Alertmanager can be configured to send alerts to a Slack channel using an Incoming Webhook . To enable Slack alerts, you must first create a webhook . This should result in a URL of the form: https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX This URL should be placed in the following variable to allow Azimuth's Alertmanager to send alerts to Slack: environments/my-site/inventory/group_vars/all/secrets.yml alertmanager_config_slack_webhook_url : https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX Danger The webhook URL should be kept secret. If you want to keep it in Git - which is recommended - then it must be encrypted .","title":"Slack alerts"},{"location":"configuration/14-disaster-recovery/","text":"Disaster Recovery Azimuth uses Velero as a disaster recovery solution. Velero provides the ability to back up Kubernetes API resources to an object store and has a plugin-based system to enable snapshotting of a cluster's persistent volumes. Warning Backup and restore is only available for production-grade HA installations of Azimuth. The Azimuth playbooks install Velero on the HA management cluster and the Velero CLI tool on the seed node. Once configured with the appropriate credentials, the installation process will create a Schedule on the HA cluster, which triggers a daily backup at midnight and cleans up backups older which are more than 1 week old. The AWS Velero plugin is used for S3 support and the CSI plugin for volume snapshots. The CSI plugin uses Kubernetes generic support for Volume Snapshots , which is implemented for OpenStack by the Cinder CSI plugin . Configuration To enable backup and restore functionality, the following variables should be set in your environment: environments/my-site/inventory/group_vars/all/variables.yml velero_enabled : true velero_s3_url : velero_bucket_name : environments/my-site/inventory/group_vars/all/secrets.yml velero_aws_access_key_id : velero_aws_secret_access_key : Danger The S3 credentials should be kept secret. If you want to keep them in Git - which is recommended - then it must be encrypted . Velero CLI The Velero installation process also installs the Velero CLI on the Azimuth seed node, which can be used to inspect the state of the backups: On the seed node, with the kubeconfig for the HA cluster exported # List the configured backup locations velero backup-location get # List the backups and their statuses velero backup get See velero -h for other useful commands. Restoring from a backup To restore from a backup, you must first know the name of the target backup. This can be inferred from the object names in S3 if the Velero CLI is no longer available. Once you have the name of the backup to restore, run the following command with your environment activated (similar to a provision): ansible-playbook stackhpc.azimuth_ops.restore \\ -e velero_restore_backup_name = This will provision a new HA cluster, restore the backup onto it and then bring the installation up-to-date with your configuration. Performing ad-hoc backups In order to perform ad-hoc backups using the same config parameters as the installed backup schedule, run the following Velero CLI command from the seed node: On the seed node, with the kubeconfig for the HA cluster exported velero backup create --from-schedule default This will begin the backup process in the background. The status of this backup (and others) can be viewed with the velero backup get command shown above. Tip Ad-hoc backups will have the same time-to-live as the configured schedule backups (default = 7 days). To change this, pass the --ttl option to the velero backup create command. Modifying the backup schedule The following config options are available for modifying the regular backup schedule: environments/my-site/inventory/group_vars/all/variables.yml # Whether or not to perform scheduled backups velero_backup_schedule_enabled : true # Name for backup schedule kubernetes resource velero_backup_schedule_name : default # Schedule to use for backups (defaults to every day at midnight) # See https://en.wikipedia.org/wiki/Cron for format options velero_backup_schedule_timings : \"0 0 * * *\" # Time-to-live for existing backups (defaults to 1 week) # See https://pkg.go.dev/time#ParseDuration for duration format options velero_backup_schedule_ttl : \"168h\" Note Setting velero_backup_schedule_enabled: false does not prevent the backup schedule from being installed - instead it sets the schedule state to paused . This allows for ad-hoc backups to still be run on demand using the configured backup parameters.","title":"Disaster Recovery"},{"location":"configuration/14-disaster-recovery/#disaster-recovery","text":"Azimuth uses Velero as a disaster recovery solution. Velero provides the ability to back up Kubernetes API resources to an object store and has a plugin-based system to enable snapshotting of a cluster's persistent volumes. Warning Backup and restore is only available for production-grade HA installations of Azimuth. The Azimuth playbooks install Velero on the HA management cluster and the Velero CLI tool on the seed node. Once configured with the appropriate credentials, the installation process will create a Schedule on the HA cluster, which triggers a daily backup at midnight and cleans up backups older which are more than 1 week old. The AWS Velero plugin is used for S3 support and the CSI plugin for volume snapshots. The CSI plugin uses Kubernetes generic support for Volume Snapshots , which is implemented for OpenStack by the Cinder CSI plugin .","title":"Disaster Recovery"},{"location":"configuration/14-disaster-recovery/#configuration","text":"To enable backup and restore functionality, the following variables should be set in your environment: environments/my-site/inventory/group_vars/all/variables.yml velero_enabled : true velero_s3_url : velero_bucket_name : environments/my-site/inventory/group_vars/all/secrets.yml velero_aws_access_key_id : velero_aws_secret_access_key : Danger The S3 credentials should be kept secret. If you want to keep them in Git - which is recommended - then it must be encrypted .","title":"Configuration"},{"location":"configuration/14-disaster-recovery/#velero-cli","text":"The Velero installation process also installs the Velero CLI on the Azimuth seed node, which can be used to inspect the state of the backups: On the seed node, with the kubeconfig for the HA cluster exported # List the configured backup locations velero backup-location get # List the backups and their statuses velero backup get See velero -h for other useful commands.","title":"Velero CLI"},{"location":"configuration/14-disaster-recovery/#restoring-from-a-backup","text":"To restore from a backup, you must first know the name of the target backup. This can be inferred from the object names in S3 if the Velero CLI is no longer available. Once you have the name of the backup to restore, run the following command with your environment activated (similar to a provision): ansible-playbook stackhpc.azimuth_ops.restore \\ -e velero_restore_backup_name = This will provision a new HA cluster, restore the backup onto it and then bring the installation up-to-date with your configuration.","title":"Restoring from a backup"},{"location":"configuration/14-disaster-recovery/#performing-ad-hoc-backups","text":"In order to perform ad-hoc backups using the same config parameters as the installed backup schedule, run the following Velero CLI command from the seed node: On the seed node, with the kubeconfig for the HA cluster exported velero backup create --from-schedule default This will begin the backup process in the background. The status of this backup (and others) can be viewed with the velero backup get command shown above. Tip Ad-hoc backups will have the same time-to-live as the configured schedule backups (default = 7 days). To change this, pass the --ttl option to the velero backup create command.","title":"Performing ad-hoc backups"},{"location":"configuration/14-disaster-recovery/#modifying-the-backup-schedule","text":"The following config options are available for modifying the regular backup schedule: environments/my-site/inventory/group_vars/all/variables.yml # Whether or not to perform scheduled backups velero_backup_schedule_enabled : true # Name for backup schedule kubernetes resource velero_backup_schedule_name : default # Schedule to use for backups (defaults to every day at midnight) # See https://en.wikipedia.org/wiki/Cron for format options velero_backup_schedule_timings : \"0 0 * * *\" # Time-to-live for existing backups (defaults to 1 week) # See https://pkg.go.dev/time#ParseDuration for duration format options velero_backup_schedule_ttl : \"168h\" Note Setting velero_backup_schedule_enabled: false does not prevent the backup schedule from being installed - instead it sets the schedule state to paused . This allows for ad-hoc backups to still be run on demand using the configured backup parameters.","title":"Modifying the backup schedule"},{"location":"debugging/","text":"Debugging Azimuth This section provides tips on debugging some common issues with the components of an Azimuth installation. All of these debugging tips assume that you have activated the environment that you want to debug using: source ./bin/activate my-site","title":"Debugging Azimuth"},{"location":"debugging/#debugging-azimuth","text":"This section provides tips on debugging some common issues with the components of an Azimuth installation. All of these debugging tips assume that you have activated the environment that you want to debug using: source ./bin/activate my-site","title":"Debugging Azimuth"},{"location":"debugging/access-ha/","text":"Accessing the HA cluster HA clusters are provisioned using Cluster API on the K3S node. The Kubernetes API of the HA cluster is not accessible to the internet, so the K3S node is used to access it. On the K3S node, a kubeconfig file for the HA cluster is created in the $HOME directory of the ubuntu user. You can activate this kubeconfig by setting the KUBECONFIG environment variable, which allows you to access the HA cluster using kubectl : $ ./bin/seed-ssh ubuntu@azimuth-staging-seed:~$ export KUBECONFIG=./kubeconfig-azimuth-staging.yaml ubuntu@azimuth-staging-seed:~$ kubectl get po -n azimuth NAME READY STATUS RESTARTS AGE azimuth-api-6847fcd6c8-746pc 1/1 Running 0 55m azimuth-caas-operator-ara-79bcd7c5dd-k6zf5 1/1 Running 0 55m azimuth-caas-operator-7d55dddb5b-pm69d 1/1 Running 0 55m azimuth-capi-operator-metrics-57bbdfd8f4-9rqx4 1/1 Running 0 55m azimuth-capi-operator-reloader-78f879c866-k4r5w 1/1 Running 0 55m azimuth-capi-operator-789b5c8f44-2g4wx 1/1 Running 0 55m azimuth-identity-operator-778c87548b-dkcpn 1/1 Running 0 55m azimuth-ui-fc556-cjwq2 1/1 Running 0 55m consul-client-8zbnx 1/1 Running 0 55m consul-client-kf8fl 1/1 Running 0 55m consul-client-n4w2x 1/1 Running 0 55m consul-exporter-prometheus-consul-exporter-74bdc5dbc7-l7cb7 1/1 Running 0 55m consul-server-0 1/1 Running 0 55m consul-server-1 1/1 Running 0 55m consul-server-2 1/1 Running 0 55m zenith-registrar-86df769979-z2cgb 1/1 Running 0 55m zenith-sshd-768794b88b-48rcf 1/1 Running 0 55m zenith-sync-8f55f978c-v6czg 1/1 Running 0 55m","title":"Accessing the HA cluster"},{"location":"debugging/access-ha/#accessing-the-ha-cluster","text":"HA clusters are provisioned using Cluster API on the K3S node. The Kubernetes API of the HA cluster is not accessible to the internet, so the K3S node is used to access it. On the K3S node, a kubeconfig file for the HA cluster is created in the $HOME directory of the ubuntu user. You can activate this kubeconfig by setting the KUBECONFIG environment variable, which allows you to access the HA cluster using kubectl : $ ./bin/seed-ssh ubuntu@azimuth-staging-seed:~$ export KUBECONFIG=./kubeconfig-azimuth-staging.yaml ubuntu@azimuth-staging-seed:~$ kubectl get po -n azimuth NAME READY STATUS RESTARTS AGE azimuth-api-6847fcd6c8-746pc 1/1 Running 0 55m azimuth-caas-operator-ara-79bcd7c5dd-k6zf5 1/1 Running 0 55m azimuth-caas-operator-7d55dddb5b-pm69d 1/1 Running 0 55m azimuth-capi-operator-metrics-57bbdfd8f4-9rqx4 1/1 Running 0 55m azimuth-capi-operator-reloader-78f879c866-k4r5w 1/1 Running 0 55m azimuth-capi-operator-789b5c8f44-2g4wx 1/1 Running 0 55m azimuth-identity-operator-778c87548b-dkcpn 1/1 Running 0 55m azimuth-ui-fc556-cjwq2 1/1 Running 0 55m consul-client-8zbnx 1/1 Running 0 55m consul-client-kf8fl 1/1 Running 0 55m consul-client-n4w2x 1/1 Running 0 55m consul-exporter-prometheus-consul-exporter-74bdc5dbc7-l7cb7 1/1 Running 0 55m consul-server-0 1/1 Running 0 55m consul-server-1 1/1 Running 0 55m consul-server-2 1/1 Running 0 55m zenith-registrar-86df769979-z2cgb 1/1 Running 0 55m zenith-sshd-768794b88b-48rcf 1/1 Running 0 55m zenith-sync-8f55f978c-v6czg 1/1 Running 0 55m","title":"Accessing the HA cluster"},{"location":"debugging/access-k3s/","text":"Accessing the K3S cluster Both the single node and high-availability (HA) deployment methods have a K3S node that is provisioned using Terraform. In the single node case, this is the cluster that actually hosts Azimuth and all its dependencies. In the HA case, this cluster is configured as a Cluster API management cluster for the HA cluster that actually runs Azimuth. In both cases, the K3S node is deployed using Terraform and the IP address and SSH key for accessing the node are in the Terraform state for the environment. The azimuth-config repository contains a utility script - seed-ssh - that will extract these details from the Terraform state for the active environment and use them to execute an SSH command to access the provisioned node. Once on the node, you can use kubectl to inspect the state of the Kubernetes cluster. It is already configured with the correct kubeconfig file: $ ./bin/seed-ssh ubuntu@azimuth-staging-seed:~$ kubectl get po -A NAMESPACE NAME READY STATUS RESTARTS AGE kube-system coredns-7796b77cd4-mk9gw 1/1 Running 0 2d kube-system metrics-server-ff9dbcb6c-nbpjt 1/1 Running 0 2d cert-manager cert-manager-webhook-5fd7d458f7-scwd8 1/1 Running 0 2d kube-system local-path-provisioner-84bb864455-r4vd2 1/1 Running 0 2d cert-manager cert-manager-66b6d6bf59-vzqrq 1/1 Running 0 2d capi-system capi-controller-manager-7f45d4b75b-47cf4 1/1 Running 0 2d capi-kubeadm-control-plane-system capi-kubeadm-control-plane-controller-manager-5f5d7fb49-684n9 1/1 Running 0 2d cert-manager cert-manager-cainjector-856d4df858-bgs4d 1/1 Running 0 2d capo-system capo-controller-manager-5c9748574f-vnbzp 1/1 Running 0 2d capi-kubeadm-bootstrap-system capi-kubeadm-bootstrap-controller-manager-c444455b5-zn4qw 1/1 Running 0 2d default azimuth-staging-addons-cloud-config-install-9eeff--1-694x4 0/1 Completed 0 2d default azimuth-staging-addons-cni-calico-install-0d58f--1-cjwzx 0/1 Completed 0 2d default azimuth-staging-addons-ccm-openstack-install-bc2b0--1-jlb4b 0/1 Completed 0 2d default azimuth-staging-addons-prometheus-operator-crds-instal--1-sn66s 0/1 Completed 0 2d default azimuth-staging-addons-metrics-server-install-45390--1-rr5m6 0/1 Completed 0 2d default azimuth-staging-addons-csi-cinder-install-53888--1-cg9gq 0/1 Completed 0 2d default azimuth-staging-addons-ingress-nginx-install-478f3--1-p4hwb 0/1 Completed 0 2d default azimuth-staging-addons-loki-stack-install-c8cd1--1-5z2wc 0/1 Completed 0 2d default azimuth-staging-addons-kube-prometheus-stack-install-4--1-xgmvd 0/1 Completed 0 2d default azimuth-staging-autoscaler-66cc55487c-qfpgn 1/1 Running 0 2d","title":"Accessing the K3S cluster"},{"location":"debugging/access-k3s/#accessing-the-k3s-cluster","text":"Both the single node and high-availability (HA) deployment methods have a K3S node that is provisioned using Terraform. In the single node case, this is the cluster that actually hosts Azimuth and all its dependencies. In the HA case, this cluster is configured as a Cluster API management cluster for the HA cluster that actually runs Azimuth. In both cases, the K3S node is deployed using Terraform and the IP address and SSH key for accessing the node are in the Terraform state for the environment. The azimuth-config repository contains a utility script - seed-ssh - that will extract these details from the Terraform state for the active environment and use them to execute an SSH command to access the provisioned node. Once on the node, you can use kubectl to inspect the state of the Kubernetes cluster. It is already configured with the correct kubeconfig file: $ ./bin/seed-ssh ubuntu@azimuth-staging-seed:~$ kubectl get po -A NAMESPACE NAME READY STATUS RESTARTS AGE kube-system coredns-7796b77cd4-mk9gw 1/1 Running 0 2d kube-system metrics-server-ff9dbcb6c-nbpjt 1/1 Running 0 2d cert-manager cert-manager-webhook-5fd7d458f7-scwd8 1/1 Running 0 2d kube-system local-path-provisioner-84bb864455-r4vd2 1/1 Running 0 2d cert-manager cert-manager-66b6d6bf59-vzqrq 1/1 Running 0 2d capi-system capi-controller-manager-7f45d4b75b-47cf4 1/1 Running 0 2d capi-kubeadm-control-plane-system capi-kubeadm-control-plane-controller-manager-5f5d7fb49-684n9 1/1 Running 0 2d cert-manager cert-manager-cainjector-856d4df858-bgs4d 1/1 Running 0 2d capo-system capo-controller-manager-5c9748574f-vnbzp 1/1 Running 0 2d capi-kubeadm-bootstrap-system capi-kubeadm-bootstrap-controller-manager-c444455b5-zn4qw 1/1 Running 0 2d default azimuth-staging-addons-cloud-config-install-9eeff--1-694x4 0/1 Completed 0 2d default azimuth-staging-addons-cni-calico-install-0d58f--1-cjwzx 0/1 Completed 0 2d default azimuth-staging-addons-ccm-openstack-install-bc2b0--1-jlb4b 0/1 Completed 0 2d default azimuth-staging-addons-prometheus-operator-crds-instal--1-sn66s 0/1 Completed 0 2d default azimuth-staging-addons-metrics-server-install-45390--1-rr5m6 0/1 Completed 0 2d default azimuth-staging-addons-csi-cinder-install-53888--1-cg9gq 0/1 Completed 0 2d default azimuth-staging-addons-ingress-nginx-install-478f3--1-p4hwb 0/1 Completed 0 2d default azimuth-staging-addons-loki-stack-install-c8cd1--1-5z2wc 0/1 Completed 0 2d default azimuth-staging-addons-kube-prometheus-stack-install-4--1-xgmvd 0/1 Completed 0 2d default azimuth-staging-autoscaler-66cc55487c-qfpgn 1/1 Running 0 2d","title":"Accessing the K3S cluster"},{"location":"debugging/access-monitoring/","text":"Accessing the monitoring As discussed in Monitoring and alerting , the monitoring dashboards are exposed as subdomains under ingress_base_domain and protected by a username and password. Grafana Grafana is accessed as grafana. , e.g. grafana.azimuth.example.org , and can be used to access various dashboards showing the health of the Azimuth installation and its underlying Kubernetes cluster. For example, there are dashboards for resource usage, network traffic, etcd, tenant Kubernetes and CaaS clusters, Zenith services, pod logs and systemd logs. Prometheus Prometheus is accessed as prometheus. , and can be used to browse the configured alerts and see which are firing or pending. It can also be used to make ad-hoc queries of the metrics for the installation. Alertmanager Alertmanager is accessed as alertmanager. , and can be used to manage the firing alerts and configure silences if required. Kubernetes dashboard The Kubernetes dashboard is accessed as kubernetes. , and can be used to browse the current state of Kubernetes resources in the cluster. This includes streaming the logs of current pods. Helm dashboard The Helm dashboard is accessed as helm. , and can be used to browse the current state of the Helm releases on the cluster. The dashboard does also attempt to infer the health of the resources deployed by Helm, however this does sometimes report false-positives.","title":"Accessing the monitoring"},{"location":"debugging/access-monitoring/#accessing-the-monitoring","text":"As discussed in Monitoring and alerting , the monitoring dashboards are exposed as subdomains under ingress_base_domain and protected by a username and password.","title":"Accessing the monitoring"},{"location":"debugging/access-monitoring/#grafana","text":"Grafana is accessed as grafana. , e.g. grafana.azimuth.example.org , and can be used to access various dashboards showing the health of the Azimuth installation and its underlying Kubernetes cluster. For example, there are dashboards for resource usage, network traffic, etcd, tenant Kubernetes and CaaS clusters, Zenith services, pod logs and systemd logs.","title":"Grafana"},{"location":"debugging/access-monitoring/#prometheus","text":"Prometheus is accessed as prometheus. , and can be used to browse the configured alerts and see which are firing or pending. It can also be used to make ad-hoc queries of the metrics for the installation.","title":"Prometheus"},{"location":"debugging/access-monitoring/#alertmanager","text":"Alertmanager is accessed as alertmanager. , and can be used to manage the firing alerts and configure silences if required.","title":"Alertmanager"},{"location":"debugging/access-monitoring/#kubernetes-dashboard","text":"The Kubernetes dashboard is accessed as kubernetes. , and can be used to browse the current state of Kubernetes resources in the cluster. This includes streaming the logs of current pods.","title":"Kubernetes dashboard"},{"location":"debugging/access-monitoring/#helm-dashboard","text":"The Helm dashboard is accessed as helm. , and can be used to browse the current state of the Helm releases on the cluster. The dashboard does also attempt to infer the health of the resources deployed by Helm, however this does sometimes report false-positives.","title":"Helm dashboard"},{"location":"debugging/caas/","text":"Debugging Cluster-as-a-Service As described in configuring CaaS , Azimuth uses the Azimuth CaaS operator to manage clusters. The Azimuth API creates a namespace for each project in which instances of the CaaS CRDs are created in order to create tenant clusters. These namespaces are of the form caas- . When issues occur with cluster provisioning, here are some things to try in order to locate the issue. CRDs installed and operator running First, check that the CaaS CRDs have been registered: On the K3S node, targetting the HA cluster if deployed $ kubectl get crd | grep caas clusters.caas.azimuth.stackhpc.com 2023-07-03T13:33:28Z clustertypes.caas.azimuth.stackhpc.com 2023-07-03T13:33:28Z If they do not exist, check if the azimuth-caas-operator is running: On the K3S node, targetting the HA cluster if deployed $ kubectl -n azimuth get po -l app.kubernetes.io/instance=azimuth-caas-operator NAME READY STATUS RESTARTS AGE azimuth-caas-operator-ara-79bcd7c5dd-k6zf5 1/1 Running 0 18m azimuth-caas-operator-7d55dddb5b-pm69d 1/1 Running 0 18m Cluster resource exists Next, check if the cluster resource exists in the tenant namespace: On the K3S node, targetting the HA cluster if deployed $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx get cluster.caas NAME AGE demo-ws 7m45s demo-slurm 7m26s Check the status of the cluster you want to debug: On the K3S node, targetting the HA cluster if deployed $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx describe cluster.caas demo-ws Name: demo-ws Namespace: caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ... Check if jobs were scheduled The Azimuth CaaS operator schedules Kubernetes jobs that use ansible-runner to execute the required Ansible. If the operator is functioning properly, you should see these jobs being created: On the K3S node, targetting the HA cluster if deployed $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx get job NAME COMPLETIONS DURATION AGE demo-slurm-create-pwqmh 0/1 14m 14m demo-ws-create-9nx96 1/1 4m36s 14m If the jobs are not being scheduled, check the logs of the CaaS operator to see what is stopping them from being created: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth logs deploy/azimuth-caas-operator [ -f ] If you need to restart the operator, you can use the following command: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deploy/azimuth-caas-operator If the jobs are being scheduled, you can also check the pods that are created to see if there are issues: On the K3S node, targetting the HA cluster if deployed $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx get po NAME READY STATUS RESTARTS AGE demo-ws-create-9nx96-m2l97 0/1 Completed 0 21m demo-slurm-create-pwqmh-jsbmk 0/1 Completed 0 20m If any of the pods are getting stuck in the init phase, check the logs of the init containers to see if there are issues checking out the appliance code or installing the Ansible dependencies: On the K3S node, targetting the HA cluster if deployed kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx logs demo-ws-create-9nx96-m2l97 [ -c [ inventory | clone ]] Check Ansible output Azimuth includes a deployment of ARA Records Ansible (ARA) that is used to record Ansible playbook executions as they are run by the CaaS operator. If the job is getting as far as starting to run Ansible, then ARA is a much easier way to debug the Ansible for an appliance than wading through the Ansible logs from the job. As discussed in Monitoring and alerting , the ARA web interface is exposed as ara. , e.g. ara.azimuth.example.org , and is protected by a username and password. Once inside, you can look at the details of the recently executed jobs, see which tasks failed and what variables were set at the time.","title":"Debugging Cluster-as-a-Service"},{"location":"debugging/caas/#debugging-cluster-as-a-service","text":"As described in configuring CaaS , Azimuth uses the Azimuth CaaS operator to manage clusters. The Azimuth API creates a namespace for each project in which instances of the CaaS CRDs are created in order to create tenant clusters. These namespaces are of the form caas- . When issues occur with cluster provisioning, here are some things to try in order to locate the issue.","title":"Debugging Cluster-as-a-Service"},{"location":"debugging/caas/#crds-installed-and-operator-running","text":"First, check that the CaaS CRDs have been registered: On the K3S node, targetting the HA cluster if deployed $ kubectl get crd | grep caas clusters.caas.azimuth.stackhpc.com 2023-07-03T13:33:28Z clustertypes.caas.azimuth.stackhpc.com 2023-07-03T13:33:28Z If they do not exist, check if the azimuth-caas-operator is running: On the K3S node, targetting the HA cluster if deployed $ kubectl -n azimuth get po -l app.kubernetes.io/instance=azimuth-caas-operator NAME READY STATUS RESTARTS AGE azimuth-caas-operator-ara-79bcd7c5dd-k6zf5 1/1 Running 0 18m azimuth-caas-operator-7d55dddb5b-pm69d 1/1 Running 0 18m","title":"CRDs installed and operator running"},{"location":"debugging/caas/#cluster-resource-exists","text":"Next, check if the cluster resource exists in the tenant namespace: On the K3S node, targetting the HA cluster if deployed $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx get cluster.caas NAME AGE demo-ws 7m45s demo-slurm 7m26s Check the status of the cluster you want to debug: On the K3S node, targetting the HA cluster if deployed $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx describe cluster.caas demo-ws Name: demo-ws Namespace: caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ...","title":"Cluster resource exists"},{"location":"debugging/caas/#check-if-jobs-were-scheduled","text":"The Azimuth CaaS operator schedules Kubernetes jobs that use ansible-runner to execute the required Ansible. If the operator is functioning properly, you should see these jobs being created: On the K3S node, targetting the HA cluster if deployed $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx get job NAME COMPLETIONS DURATION AGE demo-slurm-create-pwqmh 0/1 14m 14m demo-ws-create-9nx96 1/1 4m36s 14m If the jobs are not being scheduled, check the logs of the CaaS operator to see what is stopping them from being created: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth logs deploy/azimuth-caas-operator [ -f ] If you need to restart the operator, you can use the following command: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deploy/azimuth-caas-operator If the jobs are being scheduled, you can also check the pods that are created to see if there are issues: On the K3S node, targetting the HA cluster if deployed $ kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx get po NAME READY STATUS RESTARTS AGE demo-ws-create-9nx96-m2l97 0/1 Completed 0 21m demo-slurm-create-pwqmh-jsbmk 0/1 Completed 0 20m If any of the pods are getting stuck in the init phase, check the logs of the init containers to see if there are issues checking out the appliance code or installing the Ansible dependencies: On the K3S node, targetting the HA cluster if deployed kubectl -n caas-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx logs demo-ws-create-9nx96-m2l97 [ -c [ inventory | clone ]]","title":"Check if jobs were scheduled"},{"location":"debugging/caas/#check-ansible-output","text":"Azimuth includes a deployment of ARA Records Ansible (ARA) that is used to record Ansible playbook executions as they are run by the CaaS operator. If the job is getting as far as starting to run Ansible, then ARA is a much easier way to debug the Ansible for an appliance than wading through the Ansible logs from the job. As discussed in Monitoring and alerting , the ARA web interface is exposed as ara. , e.g. ara.azimuth.example.org , and is protected by a username and password. Once inside, you can look at the details of the recently executed jobs, see which tasks failed and what variables were set at the time.","title":"Check Ansible output"},{"location":"debugging/consul/","text":"Debugging Consul Info Consul is installed using upstream Helm charts . Documentation and bug reports supplied upstream can sometimes provide helpful troubleshooting steps for issues outside the scope of this documentation. Warning Consul cluster failures are most common during and after network interruptions or activities which cause HA cluster nodes to be created or destroyed, such as: Upgrading the HA cluster to a new Kubernetes version (which requires a new image). An auto-healing event has replaced a HA cluster member which was determined to be in a down state. Consul failures are generally confined to two failure modes: Failing leader elections This failure mode is characterised by an increase in leader election events, which may trigger Alertmanager alerts . Additionally, log messages in the following format are generated by consul-server : 2023-04-19T14:39:46.896Z [ERROR] agent.anti_entropy: failed to sync remote state: error=\"No cluster leader\" 2023-04-19T14:39:47.736Z [INFO] agent.server: New leader elected: payload=consul-server-1 2023-04-19T14:39:51.495Z [WARN] agent.server.raft: Election timeout reached, restarting election 2023-04-19T14:39:51.495Z [INFO] agent.server.raft: entering candidate state: node=\"Node at 172.16.189.31:8300 [Candidate]\" term=598 View the consul-server logs using the following command: On the K3S node, targetting the HA cluster kubectl -n azimuth logs statefulsets/consul-server To remedy the errors, issue a rolling restart the Consul cluster: On the K3S node, targetting the HA cluster kubectl -n azimuth rollout restart daemonset/consul-client kubectl -n azimuth rollout restart sts/consul-server Check consul-server logs for leader elections that fail: On the K3S node, targetting the HA cluster kubectl -n azimuth logs statefulsets/consul-server Delete any pods that fail to become leader: On the K3S node, targetting the HA cluster kubectl -n azimuth delete pod $FAILING_CONSUL_SERVER For the example logs given above, the correct command would be: On the K3S node, targetting the HA cluster kubectl -n azimuth delete pod consul-server-1 Wait for all consul pods to become ready: On the K3S node, targetting the HA cluster kubectl get -n azimuth po -l app = consul NAME READY STATUS RESTARTS AGE consul-server-0 1 /1 Running 0 12m consul-server-1 1 /1 Running 0 11m consul-server-2 1 /1 Running 0 11m consul-client-9x6k7 1 /1 Running 0 13m consul-client-9e87d 1 /1 Running 0 12m consul-client-f73c3 1 /1 Running 0 12m After removing misbehaving clients, consul-server should log no futher [ERROR] messages related to failed leader elections, and Zenith Sync should begin to reconcile services, which can be monitored as descibed in the Debugging Zenith services section . Clients registering with an existing name but new IP address This failure mode is characterised by an increase in RPC errors reported by Consul, which may trigger Alertmanager alerts . Additionally, log messages in the following format are generated by consul-server : 2023-08-04T09:04:45.998Z [ERROR] agent.client: RPC failed to server: method=Catalog.Register server=172.23.196.11:8300 error=\"rpc error making call: rpc error making call: failed inserting node: Error while renaming Node ID: \\\"deadbeef-dead-beef-dead-beefdeadbee4\\\": Node name azimuth-env1-md-0-9aacb97c-ggdnb is reserved by node deadbeef-0000-0000-0000-000000000000 with name azimuth-env1-md-0-9aacb97c-ggdnb (172.17.195.48)\" 2023-08-04T09:04:45.998Z [WARN] agent: Syncing node info failed.: error=\"rpc error making call: rpc error making call: failed inserting node: Error while renaming Node ID: \\\"deadbeef-dead-beef-dead-beefdeadbee4\\\": Node name azimuth-env1-md-0-9aacb97c-ggdnb is reserved by node deadbeef-0000-0000-0000-000000000000 with name azimuth-env1-md-0-9aacb97c-ggdnb (172.17.195.48)\" 2023-08-04T09:04:45.998Z [ERROR] agent.anti_entropy: failed to sync remote state: error=\"rpc error making call: rpc error making call: failed inserting node: Error while renaming Node ID: \\\"deadbeef-dead-beef-dead-beefdeadbee4\\\": Node name azimuth-env1-md-0-9aacb97c-ggdnb is reserved by node deadbeef-0000-0000-0000-000000000000 with name azimuth-env1-md-0-9aacb97c-ggdnb (172.17.195.48)\" View the consul-server logs using the following command: On the K3S node, targetting the HA cluster kubectl -n azimuth logs statefulsets/consul-server To remedy the errors, remove the misbehaving client from the Consul cluster. The client will reattempt registration. On the K3S node, targetting the HA cluster kubectl -n azimuth exec consul-server-0 -- curl --request PUT --data '{\"Node\":\"$NODENAME\"}' -v http://localhost:8500/v1/catalog/deregister For the example logs given above, the correct command would be: On the K3S node, targetting the HA cluster kubectl -n azimuth exec consul-server-0 -- curl --request PUT --data '{\"Node\":\"azimuth-env1-md-0-9aacb97c-ggdnb\"}' -v http://localhost:8500/v1/catalog/deregister This process may need to be repeated multiple times, for each node whose node name appears in the consul-server log. After removing misbehaving clients, consul-server should log no futher [ERROR] messages related to client RPC calls, and Zenith Sync should begin to reconcile services, which can be monitored as descibed in the Debugging Zenith services section .","title":"Debugging Consul"},{"location":"debugging/consul/#debugging-consul","text":"Info Consul is installed using upstream Helm charts . Documentation and bug reports supplied upstream can sometimes provide helpful troubleshooting steps for issues outside the scope of this documentation. Warning Consul cluster failures are most common during and after network interruptions or activities which cause HA cluster nodes to be created or destroyed, such as: Upgrading the HA cluster to a new Kubernetes version (which requires a new image). An auto-healing event has replaced a HA cluster member which was determined to be in a down state. Consul failures are generally confined to two failure modes:","title":"Debugging Consul"},{"location":"debugging/consul/#failing-leader-elections","text":"This failure mode is characterised by an increase in leader election events, which may trigger Alertmanager alerts . Additionally, log messages in the following format are generated by consul-server : 2023-04-19T14:39:46.896Z [ERROR] agent.anti_entropy: failed to sync remote state: error=\"No cluster leader\" 2023-04-19T14:39:47.736Z [INFO] agent.server: New leader elected: payload=consul-server-1 2023-04-19T14:39:51.495Z [WARN] agent.server.raft: Election timeout reached, restarting election 2023-04-19T14:39:51.495Z [INFO] agent.server.raft: entering candidate state: node=\"Node at 172.16.189.31:8300 [Candidate]\" term=598 View the consul-server logs using the following command: On the K3S node, targetting the HA cluster kubectl -n azimuth logs statefulsets/consul-server To remedy the errors, issue a rolling restart the Consul cluster: On the K3S node, targetting the HA cluster kubectl -n azimuth rollout restart daemonset/consul-client kubectl -n azimuth rollout restart sts/consul-server Check consul-server logs for leader elections that fail: On the K3S node, targetting the HA cluster kubectl -n azimuth logs statefulsets/consul-server Delete any pods that fail to become leader: On the K3S node, targetting the HA cluster kubectl -n azimuth delete pod $FAILING_CONSUL_SERVER For the example logs given above, the correct command would be: On the K3S node, targetting the HA cluster kubectl -n azimuth delete pod consul-server-1 Wait for all consul pods to become ready: On the K3S node, targetting the HA cluster kubectl get -n azimuth po -l app = consul NAME READY STATUS RESTARTS AGE consul-server-0 1 /1 Running 0 12m consul-server-1 1 /1 Running 0 11m consul-server-2 1 /1 Running 0 11m consul-client-9x6k7 1 /1 Running 0 13m consul-client-9e87d 1 /1 Running 0 12m consul-client-f73c3 1 /1 Running 0 12m After removing misbehaving clients, consul-server should log no futher [ERROR] messages related to failed leader elections, and Zenith Sync should begin to reconcile services, which can be monitored as descibed in the Debugging Zenith services section .","title":"Failing leader elections"},{"location":"debugging/consul/#clients-registering-with-an-existing-name-but-new-ip-address","text":"This failure mode is characterised by an increase in RPC errors reported by Consul, which may trigger Alertmanager alerts . Additionally, log messages in the following format are generated by consul-server : 2023-08-04T09:04:45.998Z [ERROR] agent.client: RPC failed to server: method=Catalog.Register server=172.23.196.11:8300 error=\"rpc error making call: rpc error making call: failed inserting node: Error while renaming Node ID: \\\"deadbeef-dead-beef-dead-beefdeadbee4\\\": Node name azimuth-env1-md-0-9aacb97c-ggdnb is reserved by node deadbeef-0000-0000-0000-000000000000 with name azimuth-env1-md-0-9aacb97c-ggdnb (172.17.195.48)\" 2023-08-04T09:04:45.998Z [WARN] agent: Syncing node info failed.: error=\"rpc error making call: rpc error making call: failed inserting node: Error while renaming Node ID: \\\"deadbeef-dead-beef-dead-beefdeadbee4\\\": Node name azimuth-env1-md-0-9aacb97c-ggdnb is reserved by node deadbeef-0000-0000-0000-000000000000 with name azimuth-env1-md-0-9aacb97c-ggdnb (172.17.195.48)\" 2023-08-04T09:04:45.998Z [ERROR] agent.anti_entropy: failed to sync remote state: error=\"rpc error making call: rpc error making call: failed inserting node: Error while renaming Node ID: \\\"deadbeef-dead-beef-dead-beefdeadbee4\\\": Node name azimuth-env1-md-0-9aacb97c-ggdnb is reserved by node deadbeef-0000-0000-0000-000000000000 with name azimuth-env1-md-0-9aacb97c-ggdnb (172.17.195.48)\" View the consul-server logs using the following command: On the K3S node, targetting the HA cluster kubectl -n azimuth logs statefulsets/consul-server To remedy the errors, remove the misbehaving client from the Consul cluster. The client will reattempt registration. On the K3S node, targetting the HA cluster kubectl -n azimuth exec consul-server-0 -- curl --request PUT --data '{\"Node\":\"$NODENAME\"}' -v http://localhost:8500/v1/catalog/deregister For the example logs given above, the correct command would be: On the K3S node, targetting the HA cluster kubectl -n azimuth exec consul-server-0 -- curl --request PUT --data '{\"Node\":\"azimuth-env1-md-0-9aacb97c-ggdnb\"}' -v http://localhost:8500/v1/catalog/deregister This process may need to be repeated multiple times, for each node whose node name appears in the consul-server log. After removing misbehaving clients, consul-server should log no futher [ERROR] messages related to client RPC calls, and Zenith Sync should begin to reconcile services, which can be monitored as descibed in the Debugging Zenith services section .","title":"Clients registering with an existing name but new IP address"},{"location":"debugging/kubernetes/","text":"Debugging Kubernetes As described in Configuring Kubernetes , Azimuth uses Cluster API to manage tenant Kubernetes clusters. Cluster API resources are managed by releases of the openstack-cluster Helm chart , which in turn are managed by the azimuth-capi-operator in response to changes to instances of the clusters.azimuth.stackhpc.com custom resource. These instances are created, updated and deleted in Kubernetes by the Azimuth API in response to user actions. The Azimuth API creates a namespace for each project, in which cluster resources are created. These namespaces are of the form az- . It is also important to note that the Kubernetes API servers for tenant clusters do not use Octavia load balancers like the Azimuth HA cluster. Instead, the API servers for tenant clusters are exposed via Zenith. When issues occur with cluster provisioning, here are some things to try in order to locate the issue. Cluster resource exists First, check if the cluster resource exists in the tenant namespace: On the K3S node, targetting the HA cluster if deployed $ kubectl -n az-demo get cluster NAME LABEL TEMPLATE KUBERNETES VERSION PHASE NODE COUNT AGE demo demo kube-1-24-2 1.24.2 Ready 4 11d If no cluster resource exists, check if the Kubernetes CRDs are installed: On the K3S node, targetting the HA cluster if deployed $ kubectl get crd | grep azimuth apptemplates.azimuth.stackhpc.com 2022-11-02T11:11:13Z clusters.azimuth.stackhpc.com 2022-11-02T10:53:26Z clustertemplates.azimuth.stackhpc.com 2022-11-02T10:53:26Z If they do not exist, check if the azimuth-capi-operator is running: On the K3S node, targetting the HA cluster if deployed $ kubectl -n azimuth get po -l app.kubernetes.io/instance=azimuth-capi-operator NAME READY STATUS RESTARTS AGE azimuth-capi-operator-5c65c4b598-h2thx 1/1 Running 0 10d Helm release exists The first thing that the azimuth-capi-operator does when it sees a new cluster resource is make a Helm release: On the K3S node, targetting the HA cluster if deployed $ helm -n az-demo list -a NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION demo az-demo 1 2022-07-07 13:26:22.94084961 +0000 UTC deployed openstack-cluster-0.1.0-dev.0.main.161 a0bcee5 If the Helm release does not exist, restart the azimuth-capi-operator : On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deploy/azimuth-capi-operator If the Helm release does not get created, even after a restart, check the logs of the azimuth-capi-operator for any warnings or errors: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth logs deploy/azimuth-capi-operator [ -f ] Cluster API resource status If the Helm release is in the deployed status, the next thing to check is the state of the Cluster API resources that were created: On the K3S node, targetting the HA cluster if deployed $ kubectl -n az-demo get cluster-api NAME CLUSTER BOOTSTRAP TARGET NAMESPACE RELEASE NAME PHASE REVISION AGE manifests.addons.stackhpc.com/demo-cloud-config demo true openstack-system cloud-config Deployed 1 11d manifests.addons.stackhpc.com/demo-csi-cinder-storageclass demo true openstack-system csi-cinder-storageclass Deployed 1 11d manifests.addons.stackhpc.com/demo-kube-prometheus-stack-client demo true monitoring-system kube-prometheus-stack-client Deployed 2 11d manifests.addons.stackhpc.com/demo-kube-prometheus-stack-dashboards demo true monitoring-system kube-prometheus-stack-dashboards Deployed 1 11d manifests.addons.stackhpc.com/demo-kubernetes-dashboard-client demo true kubernetes-dashboard kubernetes-dashboard-client Deployed 2 11d manifests.addons.stackhpc.com/demo-loki-stack-dashboards demo true monitoring-system loki-stack-dashboards Deployed 1 11d NAME CLUSTER BOOTSTRAP TARGET NAMESPACE RELEASE NAME PHASE REVISION CHART NAME CHART VERSION AGE helmrelease.addons.stackhpc.com/dask-demo demo dask-demo dask-demo Deployed 1 daskhub-azimuth 0.1.0-dev.0.main.23 11d helmrelease.addons.stackhpc.com/demo-ccm-openstack demo true openstack-system ccm-openstack Deployed 1 openstack-cloud-controller-manager 1.3.0 11d helmrelease.addons.stackhpc.com/demo-cni-calico demo true tigera-operator cni-calico Deployed 1 tigera-operator v3.23.3 11d helmrelease.addons.stackhpc.com/demo-csi-cinder demo true openstack-system csi-cinder Deployed 1 openstack-cinder-csi 2.2.0 11d helmrelease.addons.stackhpc.com/demo-kube-prometheus-stack demo true monitoring-system kube-prometheus-stack Deployed 1 kube-prometheus-stack 40.1.0 11d helmrelease.addons.stackhpc.com/demo-kubernetes-dashboard demo true kubernetes-dashboard kubernetes-dashboard Deployed 1 kubernetes-dashboard 5.10.0 11d helmrelease.addons.stackhpc.com/demo-loki-stack demo true monitoring-system loki-stack Deployed 1 loki-stack 2.8.2 11d helmrelease.addons.stackhpc.com/demo-mellanox-network-operator demo true network-operator mellanox-network-operator Deployed 1 network-operator 1.3.0 11d helmrelease.addons.stackhpc.com/demo-metrics-server demo true kube-system metrics-server Deployed 1 metrics-server 3.8.2 11d helmrelease.addons.stackhpc.com/demo-node-feature-discovery demo true node-feature-discovery node-feature-discovery Deployed 1 node-feature-discovery 0.11.2 11d helmrelease.addons.stackhpc.com/demo-nvidia-gpu-operator demo true gpu-operator nvidia-gpu-operator Deployed 1 gpu-operator v1.11.1 11d NAME CLUSTER AGE kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-control-plane-5kjjt demo 11d kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-control-plane-897r6 demo 11d kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-control-plane-x26zz demo 11d kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-sm0-cc21616d-lddk6 demo 11d NAME AGE kubeadmconfigtemplate.bootstrap.cluster.x-k8s.io/demo-sm0-cc21616d 11d NAME CLUSTER EXPECTEDMACHINES MAXUNHEALTHY CURRENTHEALTHY AGE machinehealthcheck.cluster.x-k8s.io/demo-control-plane demo 3 100% 3 11d machinehealthcheck.cluster.x-k8s.io/demo-sm0 demo 1 100% 1 11d NAME CLUSTER REPLICAS READY AVAILABLE AGE VERSION machineset.cluster.x-k8s.io/demo-sm0-c99fb7798 demo 1 1 1 11d v1.24.2 NAME CLUSTER REPLICAS READY UPDATED UNAVAILABLE PHASE AGE VERSION machinedeployment.cluster.x-k8s.io/demo-sm0 demo 1 1 1 0 Running 11d v1.24.2 NAME PHASE AGE VERSION cluster.cluster.x-k8s.io/demo Provisioned 11d NAME CLUSTER NODENAME PROVIDERID PHASE AGE VERSION machine.cluster.x-k8s.io/demo-control-plane-7p8zv demo demo-control-plane-7d76d0be-z6dm8 openstack:///f687f926-3cee-4550-91e5-32c2885708b0 Running 11d v1.24.2 machine.cluster.x-k8s.io/demo-control-plane-9skvh demo demo-control-plane-7d76d0be-d2mcr openstack:///ea91f79a-8abb-4cb9-a2ea-8f772568e93c Running 11d v1.24.2 machine.cluster.x-k8s.io/demo-control-plane-s8dhv demo demo-control-plane-7d76d0be-j64w6 openstack:///33a3a532-348a-4b93-ab19-d7d8cdb0daa4 Running 11d v1.24.2 machine.cluster.x-k8s.io/demo-sm0-c99fb7798-qqk4j demo demo-sm0-7d76d0be-gdjwv openstack:///ef9ae59c-bf20-44e0-831f-3798d25b7a06 Running 11d v1.24.2 NAME CLUSTER INITIALIZED API SERVER AVAILABLE REPLICAS READY UPDATED UNAVAILABLE AGE VERSION kubeadmcontrolplane.controlplane.cluster.x-k8s.io/demo-control-plane demo true true 3 3 3 0 11d v1.24.2 NAME CLUSTER READY NETWORK SUBNET BASTION IP openstackcluster.infrastructure.cluster.x-k8s.io/demo demo true 4b6b2722-ee5b-40ec-8e52-a6610e14cc51 73e22c49-10b8-4763-af2f-4c0cce007c82 NAME CLUSTER INSTANCESTATE READY PROVIDERID MACHINE openstackmachine.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be-d2mcr demo ACTIVE true openstack:///ea91f79a-8abb-4cb9-a2ea-8f772568e93c demo-control-plane-9skvh openstackmachine.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be-j64w6 demo ACTIVE true openstack:///33a3a532-348a-4b93-ab19-d7d8cdb0daa4 demo-control-plane-s8dhv openstackmachine.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be-z6dm8 demo ACTIVE true openstack:///f687f926-3cee-4550-91e5-32c2885708b0 demo-control-plane-7p8zv openstackmachine.infrastructure.cluster.x-k8s.io/demo-sm0-7d76d0be-gdjwv demo ACTIVE true openstack:///ef9ae59c-bf20-44e0-831f-3798d25b7a06 demo-sm0-c99fb7798-qqk4j NAME AGE openstackmachinetemplate.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be 11d openstackmachinetemplate.infrastructure.cluster.x-k8s.io/demo-sm0-7d76d0be 11d The cluster.cluster.x-k8s.io resource should be Provisioned , the machine.cluster.x-k8s.io resources should be Running with an associated NODENAME , the openstackmachine.infrastructure.cluster.x-k8s.io resources should be ACTIVE and the {manifests,helmrelease}.addons.stackhpc.com resources should all be Deployed . If this is not the case, first check the interactive console of the cluster nodes in Horizon to see if the nodes had any problems joining the cluster. Also check to see if the Zenith service for the API server was created correctly - once all control plane nodes have registered correctly the Endpoints resource for the service should have an entry for each control plane node (usually three). If these all look OK, check the logs of the Cluster API providers for any errors: On the K3S node, targetting the HA cluster if deployed kubectl -n capi-system logs deploy/capi-controller-manager kubectl -n capi-kubeadm-bootstrap-system logs deploy/capi-kubeadm-bootstrap-controller-manager kubectl -n capi-kubeadm-control-plane-system logs deploy/capi-kubeadm-control-plane-controller-manager kubectl -n capo-system logs deploy/capo-controller-manager kubectl -n capi-addon-system logs deploy/cluster-api-addon-provider Zenith service issues Zenith services are enabled on Kubernetes clusters using the Zenith operator . Each tenant Kubernetes cluster gets an instance of the operator that runs on the Azimuth cluster, where it can reach the Zenith registrar to allocate subdomains, but watches the tenant cluster for instances of the reservation.zenith.stackhpc.com and client.zenith.stackhpc.com custom resources. By creating instances of these resources in the tenant cluster, Kubernetes Services in the target cluster can be exposed via Zenith. If Zenith services are not becoming available for Kubernetes cluster services, first follow the procedure for debugging a Zenith service , including checking that the clients were created correctly and that the pods are running: Targetting the tenant cluster $ kubectl get zenith -A NAMESPACE NAME PHASE UPSTREAM SERVICE MITM ENABLED MITM AUTH AGE kubernetes-dashboard client.zenith.stackhpc.com/kubernetes-dashboard Available kubernetes-dashboard true ServiceAccount 4d19h monitoring-system client.zenith.stackhpc.com/kube-prometheus-stack Available kube-prometheus-stack-grafana true Basic 4d19h NAMESPACE NAME SECRET PHASE FQDN AGE kubernetes-dashboard reservation.zenith.stackhpc.com/kubernetes-dashboard kubernetes-dashboard-zenith-credential Ready mwqgcdrk77nva18uzcct3g7jlo7obi7zlbcgemuhk6nhk.azimuth.example.org 4d19h monitoring-system reservation.zenith.stackhpc.com/kube-prometheus-stack kube-prometheus-stack-zenith-credential Ready zovdsnnesww2hiw074mvufvcfgczfbd2yhmuhsf3p59xa.azimuth.example.org 4d19h $ kubectl get deploy,po -A -l app.kubernetes.io/managed-by=zenith-operator NAMESPACE NAME READY UP-TO-DATE AVAILABLE AGE kubernetes-dashboard deployment.apps/kubernetes-dashboard-zenith-client 1/1 1 1 4d19h monitoring-system deployment.apps/kube-prometheus-stack-zenith-client 1/1 1 1 4d19h NAMESPACE NAME READY STATUS RESTARTS AGE kubernetes-dashboard pod/kubernetes-dashboard-zenith-client-86c5fd9bd-2jfdb 2/2 Running 0 4d19h monitoring-system pod/kube-prometheus-stack-zenith-client-b9986579d-qgp82 2/2 Running 0 9h Tip The kubeconfig for a tenant cluster is available in a secret in the tenant namespace: On the K3S node, targetting the HA cluster if deployed $ kubectl -n az-demo get secret | grep kubeconfig demo-kubeconfig cluster.x-k8s.io/secret 1 11d If everything looks OK, try restarting the Zenith operator for the cluster: On the K3S node, targetting the HA cluster if deployed $ kubectl -n az-demo rollout restart deploy/demo-zenith-operator","title":"Debugging Kubernetes"},{"location":"debugging/kubernetes/#debugging-kubernetes","text":"As described in Configuring Kubernetes , Azimuth uses Cluster API to manage tenant Kubernetes clusters. Cluster API resources are managed by releases of the openstack-cluster Helm chart , which in turn are managed by the azimuth-capi-operator in response to changes to instances of the clusters.azimuth.stackhpc.com custom resource. These instances are created, updated and deleted in Kubernetes by the Azimuth API in response to user actions. The Azimuth API creates a namespace for each project, in which cluster resources are created. These namespaces are of the form az- . It is also important to note that the Kubernetes API servers for tenant clusters do not use Octavia load balancers like the Azimuth HA cluster. Instead, the API servers for tenant clusters are exposed via Zenith. When issues occur with cluster provisioning, here are some things to try in order to locate the issue.","title":"Debugging Kubernetes"},{"location":"debugging/kubernetes/#cluster-resource-exists","text":"First, check if the cluster resource exists in the tenant namespace: On the K3S node, targetting the HA cluster if deployed $ kubectl -n az-demo get cluster NAME LABEL TEMPLATE KUBERNETES VERSION PHASE NODE COUNT AGE demo demo kube-1-24-2 1.24.2 Ready 4 11d If no cluster resource exists, check if the Kubernetes CRDs are installed: On the K3S node, targetting the HA cluster if deployed $ kubectl get crd | grep azimuth apptemplates.azimuth.stackhpc.com 2022-11-02T11:11:13Z clusters.azimuth.stackhpc.com 2022-11-02T10:53:26Z clustertemplates.azimuth.stackhpc.com 2022-11-02T10:53:26Z If they do not exist, check if the azimuth-capi-operator is running: On the K3S node, targetting the HA cluster if deployed $ kubectl -n azimuth get po -l app.kubernetes.io/instance=azimuth-capi-operator NAME READY STATUS RESTARTS AGE azimuth-capi-operator-5c65c4b598-h2thx 1/1 Running 0 10d","title":"Cluster resource exists"},{"location":"debugging/kubernetes/#helm-release-exists","text":"The first thing that the azimuth-capi-operator does when it sees a new cluster resource is make a Helm release: On the K3S node, targetting the HA cluster if deployed $ helm -n az-demo list -a NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION demo az-demo 1 2022-07-07 13:26:22.94084961 +0000 UTC deployed openstack-cluster-0.1.0-dev.0.main.161 a0bcee5 If the Helm release does not exist, restart the azimuth-capi-operator : On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deploy/azimuth-capi-operator If the Helm release does not get created, even after a restart, check the logs of the azimuth-capi-operator for any warnings or errors: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth logs deploy/azimuth-capi-operator [ -f ]","title":"Helm release exists"},{"location":"debugging/kubernetes/#cluster-api-resource-status","text":"If the Helm release is in the deployed status, the next thing to check is the state of the Cluster API resources that were created: On the K3S node, targetting the HA cluster if deployed $ kubectl -n az-demo get cluster-api NAME CLUSTER BOOTSTRAP TARGET NAMESPACE RELEASE NAME PHASE REVISION AGE manifests.addons.stackhpc.com/demo-cloud-config demo true openstack-system cloud-config Deployed 1 11d manifests.addons.stackhpc.com/demo-csi-cinder-storageclass demo true openstack-system csi-cinder-storageclass Deployed 1 11d manifests.addons.stackhpc.com/demo-kube-prometheus-stack-client demo true monitoring-system kube-prometheus-stack-client Deployed 2 11d manifests.addons.stackhpc.com/demo-kube-prometheus-stack-dashboards demo true monitoring-system kube-prometheus-stack-dashboards Deployed 1 11d manifests.addons.stackhpc.com/demo-kubernetes-dashboard-client demo true kubernetes-dashboard kubernetes-dashboard-client Deployed 2 11d manifests.addons.stackhpc.com/demo-loki-stack-dashboards demo true monitoring-system loki-stack-dashboards Deployed 1 11d NAME CLUSTER BOOTSTRAP TARGET NAMESPACE RELEASE NAME PHASE REVISION CHART NAME CHART VERSION AGE helmrelease.addons.stackhpc.com/dask-demo demo dask-demo dask-demo Deployed 1 daskhub-azimuth 0.1.0-dev.0.main.23 11d helmrelease.addons.stackhpc.com/demo-ccm-openstack demo true openstack-system ccm-openstack Deployed 1 openstack-cloud-controller-manager 1.3.0 11d helmrelease.addons.stackhpc.com/demo-cni-calico demo true tigera-operator cni-calico Deployed 1 tigera-operator v3.23.3 11d helmrelease.addons.stackhpc.com/demo-csi-cinder demo true openstack-system csi-cinder Deployed 1 openstack-cinder-csi 2.2.0 11d helmrelease.addons.stackhpc.com/demo-kube-prometheus-stack demo true monitoring-system kube-prometheus-stack Deployed 1 kube-prometheus-stack 40.1.0 11d helmrelease.addons.stackhpc.com/demo-kubernetes-dashboard demo true kubernetes-dashboard kubernetes-dashboard Deployed 1 kubernetes-dashboard 5.10.0 11d helmrelease.addons.stackhpc.com/demo-loki-stack demo true monitoring-system loki-stack Deployed 1 loki-stack 2.8.2 11d helmrelease.addons.stackhpc.com/demo-mellanox-network-operator demo true network-operator mellanox-network-operator Deployed 1 network-operator 1.3.0 11d helmrelease.addons.stackhpc.com/demo-metrics-server demo true kube-system metrics-server Deployed 1 metrics-server 3.8.2 11d helmrelease.addons.stackhpc.com/demo-node-feature-discovery demo true node-feature-discovery node-feature-discovery Deployed 1 node-feature-discovery 0.11.2 11d helmrelease.addons.stackhpc.com/demo-nvidia-gpu-operator demo true gpu-operator nvidia-gpu-operator Deployed 1 gpu-operator v1.11.1 11d NAME CLUSTER AGE kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-control-plane-5kjjt demo 11d kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-control-plane-897r6 demo 11d kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-control-plane-x26zz demo 11d kubeadmconfig.bootstrap.cluster.x-k8s.io/demo-sm0-cc21616d-lddk6 demo 11d NAME AGE kubeadmconfigtemplate.bootstrap.cluster.x-k8s.io/demo-sm0-cc21616d 11d NAME CLUSTER EXPECTEDMACHINES MAXUNHEALTHY CURRENTHEALTHY AGE machinehealthcheck.cluster.x-k8s.io/demo-control-plane demo 3 100% 3 11d machinehealthcheck.cluster.x-k8s.io/demo-sm0 demo 1 100% 1 11d NAME CLUSTER REPLICAS READY AVAILABLE AGE VERSION machineset.cluster.x-k8s.io/demo-sm0-c99fb7798 demo 1 1 1 11d v1.24.2 NAME CLUSTER REPLICAS READY UPDATED UNAVAILABLE PHASE AGE VERSION machinedeployment.cluster.x-k8s.io/demo-sm0 demo 1 1 1 0 Running 11d v1.24.2 NAME PHASE AGE VERSION cluster.cluster.x-k8s.io/demo Provisioned 11d NAME CLUSTER NODENAME PROVIDERID PHASE AGE VERSION machine.cluster.x-k8s.io/demo-control-plane-7p8zv demo demo-control-plane-7d76d0be-z6dm8 openstack:///f687f926-3cee-4550-91e5-32c2885708b0 Running 11d v1.24.2 machine.cluster.x-k8s.io/demo-control-plane-9skvh demo demo-control-plane-7d76d0be-d2mcr openstack:///ea91f79a-8abb-4cb9-a2ea-8f772568e93c Running 11d v1.24.2 machine.cluster.x-k8s.io/demo-control-plane-s8dhv demo demo-control-plane-7d76d0be-j64w6 openstack:///33a3a532-348a-4b93-ab19-d7d8cdb0daa4 Running 11d v1.24.2 machine.cluster.x-k8s.io/demo-sm0-c99fb7798-qqk4j demo demo-sm0-7d76d0be-gdjwv openstack:///ef9ae59c-bf20-44e0-831f-3798d25b7a06 Running 11d v1.24.2 NAME CLUSTER INITIALIZED API SERVER AVAILABLE REPLICAS READY UPDATED UNAVAILABLE AGE VERSION kubeadmcontrolplane.controlplane.cluster.x-k8s.io/demo-control-plane demo true true 3 3 3 0 11d v1.24.2 NAME CLUSTER READY NETWORK SUBNET BASTION IP openstackcluster.infrastructure.cluster.x-k8s.io/demo demo true 4b6b2722-ee5b-40ec-8e52-a6610e14cc51 73e22c49-10b8-4763-af2f-4c0cce007c82 NAME CLUSTER INSTANCESTATE READY PROVIDERID MACHINE openstackmachine.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be-d2mcr demo ACTIVE true openstack:///ea91f79a-8abb-4cb9-a2ea-8f772568e93c demo-control-plane-9skvh openstackmachine.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be-j64w6 demo ACTIVE true openstack:///33a3a532-348a-4b93-ab19-d7d8cdb0daa4 demo-control-plane-s8dhv openstackmachine.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be-z6dm8 demo ACTIVE true openstack:///f687f926-3cee-4550-91e5-32c2885708b0 demo-control-plane-7p8zv openstackmachine.infrastructure.cluster.x-k8s.io/demo-sm0-7d76d0be-gdjwv demo ACTIVE true openstack:///ef9ae59c-bf20-44e0-831f-3798d25b7a06 demo-sm0-c99fb7798-qqk4j NAME AGE openstackmachinetemplate.infrastructure.cluster.x-k8s.io/demo-control-plane-7d76d0be 11d openstackmachinetemplate.infrastructure.cluster.x-k8s.io/demo-sm0-7d76d0be 11d The cluster.cluster.x-k8s.io resource should be Provisioned , the machine.cluster.x-k8s.io resources should be Running with an associated NODENAME , the openstackmachine.infrastructure.cluster.x-k8s.io resources should be ACTIVE and the {manifests,helmrelease}.addons.stackhpc.com resources should all be Deployed . If this is not the case, first check the interactive console of the cluster nodes in Horizon to see if the nodes had any problems joining the cluster. Also check to see if the Zenith service for the API server was created correctly - once all control plane nodes have registered correctly the Endpoints resource for the service should have an entry for each control plane node (usually three). If these all look OK, check the logs of the Cluster API providers for any errors: On the K3S node, targetting the HA cluster if deployed kubectl -n capi-system logs deploy/capi-controller-manager kubectl -n capi-kubeadm-bootstrap-system logs deploy/capi-kubeadm-bootstrap-controller-manager kubectl -n capi-kubeadm-control-plane-system logs deploy/capi-kubeadm-control-plane-controller-manager kubectl -n capo-system logs deploy/capo-controller-manager kubectl -n capi-addon-system logs deploy/cluster-api-addon-provider","title":"Cluster API resource status"},{"location":"debugging/kubernetes/#zenith-service-issues","text":"Zenith services are enabled on Kubernetes clusters using the Zenith operator . Each tenant Kubernetes cluster gets an instance of the operator that runs on the Azimuth cluster, where it can reach the Zenith registrar to allocate subdomains, but watches the tenant cluster for instances of the reservation.zenith.stackhpc.com and client.zenith.stackhpc.com custom resources. By creating instances of these resources in the tenant cluster, Kubernetes Services in the target cluster can be exposed via Zenith. If Zenith services are not becoming available for Kubernetes cluster services, first follow the procedure for debugging a Zenith service , including checking that the clients were created correctly and that the pods are running: Targetting the tenant cluster $ kubectl get zenith -A NAMESPACE NAME PHASE UPSTREAM SERVICE MITM ENABLED MITM AUTH AGE kubernetes-dashboard client.zenith.stackhpc.com/kubernetes-dashboard Available kubernetes-dashboard true ServiceAccount 4d19h monitoring-system client.zenith.stackhpc.com/kube-prometheus-stack Available kube-prometheus-stack-grafana true Basic 4d19h NAMESPACE NAME SECRET PHASE FQDN AGE kubernetes-dashboard reservation.zenith.stackhpc.com/kubernetes-dashboard kubernetes-dashboard-zenith-credential Ready mwqgcdrk77nva18uzcct3g7jlo7obi7zlbcgemuhk6nhk.azimuth.example.org 4d19h monitoring-system reservation.zenith.stackhpc.com/kube-prometheus-stack kube-prometheus-stack-zenith-credential Ready zovdsnnesww2hiw074mvufvcfgczfbd2yhmuhsf3p59xa.azimuth.example.org 4d19h $ kubectl get deploy,po -A -l app.kubernetes.io/managed-by=zenith-operator NAMESPACE NAME READY UP-TO-DATE AVAILABLE AGE kubernetes-dashboard deployment.apps/kubernetes-dashboard-zenith-client 1/1 1 1 4d19h monitoring-system deployment.apps/kube-prometheus-stack-zenith-client 1/1 1 1 4d19h NAMESPACE NAME READY STATUS RESTARTS AGE kubernetes-dashboard pod/kubernetes-dashboard-zenith-client-86c5fd9bd-2jfdb 2/2 Running 0 4d19h monitoring-system pod/kube-prometheus-stack-zenith-client-b9986579d-qgp82 2/2 Running 0 9h Tip The kubeconfig for a tenant cluster is available in a secret in the tenant namespace: On the K3S node, targetting the HA cluster if deployed $ kubectl -n az-demo get secret | grep kubeconfig demo-kubeconfig cluster.x-k8s.io/secret 1 11d If everything looks OK, try restarting the Zenith operator for the cluster: On the K3S node, targetting the HA cluster if deployed $ kubectl -n az-demo rollout restart deploy/demo-zenith-operator","title":"Zenith service issues"},{"location":"debugging/zenith-services/","text":"Debugging Zenith services If a Zenith service does not become available, the most common causes are: Client not connecting to SSHD The first thing that happens to connect a Zenith service is that the Zenith client must connect to the Zenith SSHD. To see if a Zenith client is connecting, check for the Zenith subdomain in the logs of the SSHD server: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth logs deploy/zenith-server-sshd [ -f ] If there are no logs for the target Zenith subdomain, this usually indicates a problem with the client. Check the logs for the client and restart it if necessary. If problems persist, try restarting the Zenith SSHD: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deployment/zenith-server-sshd Client not registered in Consul Once a client has connected to SSHD successfully, it should get registered in Consul . To determine if this is the case, it is useful to access the Consul UI. As discussed in Monitoring and alerting , the Consul UI is exposed as consul. , e.g. consul.azimuth.example.org , and is protected by a username and password. The default view shows Consul's view of the services, where you can check if the service is being registered correctly. Clients not registering correctly in Consul usually indicates an issue with Consul itself. Futher information for debugging Consul issues is provided in Debugging Consul . If the issue persists once Consul issues are ruled out, try restarting SSHD: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deployment/zenith-server-sshd OIDC credentials not created Keycloak OIDC credentials for Zenith services for platforms deployed using Azimuth are created by the azimuth-identity-operator . To see if this step has happened, check the status of the realm and platform resources created by the identity operator. They should all be in the Ready phase: On the K3S node, targetting the HA cluster if deployed $ kubectl get realm,platform -A NAMESPACE NAME PHASE TENANCY ID OIDC ISSUER AGE az-demo realm.identity.azimuth.stackhpc.com/az-demo Ready xxxxxxxxxxxxx https://identity.azimuth.example.org/realms/az-demo 4d2h NAMESPACE NAME PHASE AGE az-demo platform.identity.azimuth.stackhpc.com/kube-mykubecluster Ready 114s If any of these resources stay in an unready state for more than a few minutes, try restarting the identity operator: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deployment/azimuth-identity-operator Kubernetes resources for the Zenith service have not been created If the service exists in Consul, it is possible that the process that synchronises Consul services with Kubernetes resources is not functioning correctly. To check if Kubernetes resources are being created, run the following command and check that the Ingress , Service and Endpoints resources have been created for the service: On the K3S node, targetting the HA cluster if deployed $ kubectl -n zenith-services get ingress,service,endpoints NAME CLASS HOSTS ADDRESS PORTS AGE ingress.networking.k8s.io/cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g nginx cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g.azimuth.example.org 96.241.100.96 80, 443 2d ingress.networking.k8s.io/i03xvflgk1zmtcsdm2x5z5lz9qz05027euw nginx i03xvflgk1zmtcsdm2x5z5lz9qz05027euw.azimuth.example.org 96.241.100.96 80, 443 2d ingress.networking.k8s.io/pxmvy7235x2ggfvf2op615gvz2v59wkqglc nginx pxmvy7235x2ggfvf2op615gvz2v59wkqglc.azimuth.example.org 96.241.100.96 80, 443 2d ingress.networking.k8s.io/txn3zidfdnru5rg109voh848n51rvicmr1s nginx txn3zidfdnru5rg109voh848n51rvicmr1s.azimuth.example.org 96.241.100.96 80, 443 2d NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g ClusterIP 172.27.10.109 80/TCP 2d service/i03xvflgk1zmtcsdm2x5z5lz9qz05027euw ClusterIP 172.30.203.227 80/TCP 2d service/pxmvy7235x2ggfvf2op615gvz2v59wkqglc ClusterIP 172.28.51.148 80/TCP 2d service/txn3zidfdnru5rg109voh848n51rvicmr1s ClusterIP 172.29.136.245 80/TCP 2d NAME ENDPOINTS AGE endpoints/cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g 172.18.152.99:34665 2d endpoints/i03xvflgk1zmtcsdm2x5z5lz9qz05027euw 172.18.152.99:39409 2d endpoints/pxmvy7235x2ggfvf2op615gvz2v59wkqglc 172.18.152.99:44761,172.18.152.99:36483,172.18.152.99:46449 2d endpoints/txn3zidfdnru5rg109voh848n51rvicmr1s 172.18.152.99:45379 2d Tip If an ingress resource does not have an IP, this may be a sign that the ingress controller is not correctly configured or not functioning correctly. If they do not exist, try restarting the Zenith sync component: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deployment/zenith-server-sync cert-manager fails to obtain a certificate If you are using cert-manager to dynamically allocate certificates for Zenith services it is possible that cert-manager has failed to obtain a certificate for the service, e.g. because it has been rate-limited. To check if this is the case, check the state of the certificates for the Zenith services: On the K3S node, targetting the HA cluster if deployed $ kubectl -n zenith-services get certificate NAME READY SECRET AGE tls-cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g True tls-cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g 2d tls-i03xvflgk1zmtcsdm2x5z5lz9qz05027euw True tls-i03xvflgk1zmtcsdm2x5z5lz9qz05027euw 2d tls-txn3zidfdnru5rg109voh848n51rvicmr1s True tls-txn3zidfdnru5rg109voh848n51rvicmr1s 2d If the certificate for the service is not ready, check the details for the certificate using kubectl describe and check for any errors that have occured.","title":"Debugging Zenith services"},{"location":"debugging/zenith-services/#debugging-zenith-services","text":"If a Zenith service does not become available, the most common causes are:","title":"Debugging Zenith services"},{"location":"debugging/zenith-services/#client-not-connecting-to-sshd","text":"The first thing that happens to connect a Zenith service is that the Zenith client must connect to the Zenith SSHD. To see if a Zenith client is connecting, check for the Zenith subdomain in the logs of the SSHD server: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth logs deploy/zenith-server-sshd [ -f ] If there are no logs for the target Zenith subdomain, this usually indicates a problem with the client. Check the logs for the client and restart it if necessary. If problems persist, try restarting the Zenith SSHD: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deployment/zenith-server-sshd","title":"Client not connecting to SSHD"},{"location":"debugging/zenith-services/#client-not-registered-in-consul","text":"Once a client has connected to SSHD successfully, it should get registered in Consul . To determine if this is the case, it is useful to access the Consul UI. As discussed in Monitoring and alerting , the Consul UI is exposed as consul. , e.g. consul.azimuth.example.org , and is protected by a username and password. The default view shows Consul's view of the services, where you can check if the service is being registered correctly. Clients not registering correctly in Consul usually indicates an issue with Consul itself. Futher information for debugging Consul issues is provided in Debugging Consul . If the issue persists once Consul issues are ruled out, try restarting SSHD: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deployment/zenith-server-sshd","title":"Client not registered in Consul"},{"location":"debugging/zenith-services/#oidc-credentials-not-created","text":"Keycloak OIDC credentials for Zenith services for platforms deployed using Azimuth are created by the azimuth-identity-operator . To see if this step has happened, check the status of the realm and platform resources created by the identity operator. They should all be in the Ready phase: On the K3S node, targetting the HA cluster if deployed $ kubectl get realm,platform -A NAMESPACE NAME PHASE TENANCY ID OIDC ISSUER AGE az-demo realm.identity.azimuth.stackhpc.com/az-demo Ready xxxxxxxxxxxxx https://identity.azimuth.example.org/realms/az-demo 4d2h NAMESPACE NAME PHASE AGE az-demo platform.identity.azimuth.stackhpc.com/kube-mykubecluster Ready 114s If any of these resources stay in an unready state for more than a few minutes, try restarting the identity operator: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deployment/azimuth-identity-operator","title":"OIDC credentials not created"},{"location":"debugging/zenith-services/#kubernetes-resources-for-the-zenith-service-have-not-been-created","text":"If the service exists in Consul, it is possible that the process that synchronises Consul services with Kubernetes resources is not functioning correctly. To check if Kubernetes resources are being created, run the following command and check that the Ingress , Service and Endpoints resources have been created for the service: On the K3S node, targetting the HA cluster if deployed $ kubectl -n zenith-services get ingress,service,endpoints NAME CLASS HOSTS ADDRESS PORTS AGE ingress.networking.k8s.io/cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g nginx cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g.azimuth.example.org 96.241.100.96 80, 443 2d ingress.networking.k8s.io/i03xvflgk1zmtcsdm2x5z5lz9qz05027euw nginx i03xvflgk1zmtcsdm2x5z5lz9qz05027euw.azimuth.example.org 96.241.100.96 80, 443 2d ingress.networking.k8s.io/pxmvy7235x2ggfvf2op615gvz2v59wkqglc nginx pxmvy7235x2ggfvf2op615gvz2v59wkqglc.azimuth.example.org 96.241.100.96 80, 443 2d ingress.networking.k8s.io/txn3zidfdnru5rg109voh848n51rvicmr1s nginx txn3zidfdnru5rg109voh848n51rvicmr1s.azimuth.example.org 96.241.100.96 80, 443 2d NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g ClusterIP 172.27.10.109 80/TCP 2d service/i03xvflgk1zmtcsdm2x5z5lz9qz05027euw ClusterIP 172.30.203.227 80/TCP 2d service/pxmvy7235x2ggfvf2op615gvz2v59wkqglc ClusterIP 172.28.51.148 80/TCP 2d service/txn3zidfdnru5rg109voh848n51rvicmr1s ClusterIP 172.29.136.245 80/TCP 2d NAME ENDPOINTS AGE endpoints/cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g 172.18.152.99:34665 2d endpoints/i03xvflgk1zmtcsdm2x5z5lz9qz05027euw 172.18.152.99:39409 2d endpoints/pxmvy7235x2ggfvf2op615gvz2v59wkqglc 172.18.152.99:44761,172.18.152.99:36483,172.18.152.99:46449 2d endpoints/txn3zidfdnru5rg109voh848n51rvicmr1s 172.18.152.99:45379 2d Tip If an ingress resource does not have an IP, this may be a sign that the ingress controller is not correctly configured or not functioning correctly. If they do not exist, try restarting the Zenith sync component: On the K3S node, targetting the HA cluster if deployed kubectl -n azimuth rollout restart deployment/zenith-server-sync","title":"Kubernetes resources for the Zenith service have not been created"},{"location":"debugging/zenith-services/#cert-manager-fails-to-obtain-a-certificate","text":"If you are using cert-manager to dynamically allocate certificates for Zenith services it is possible that cert-manager has failed to obtain a certificate for the service, e.g. because it has been rate-limited. To check if this is the case, check the state of the certificates for the Zenith services: On the K3S node, targetting the HA cluster if deployed $ kubectl -n zenith-services get certificate NAME READY SECRET AGE tls-cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g True tls-cjzm03yczuj6oqrj3h8htl4u1bbx96qd53g 2d tls-i03xvflgk1zmtcsdm2x5z5lz9qz05027euw True tls-i03xvflgk1zmtcsdm2x5z5lz9qz05027euw 2d tls-txn3zidfdnru5rg109voh848n51rvicmr1s True tls-txn3zidfdnru5rg109voh848n51rvicmr1s 2d If the certificate for the service is not ready, check the details for the certificate using kubectl describe and check for any errors that have occured.","title":"cert-manager fails to obtain a certificate"},{"location":"deployment/","text":"Deploying Azimuth Python dependencies The Python requirements for an Azimuth deployment host, including Ansible itself, are contained in requirements.txt and must be installed before you can proceed with a deployment. It is recommended to use a virtual environment in order to keep the dependencies isolated from other Python applications on the host. azimuth-config includes a utility script that will create a Python virtual environment in the configuration directory and install the required dependencies: ./bin/ensure-venv If it exists, this virtual environment will be activated as part of the environment activation (see below). If you prefer to manage your own virtual environments then you must ensure that the correct environment is activated and has the required dependencies installed before continuing. For example, if you use pyenv you can set the PYENV_VERSION environment variable in your azimuth-config environment : env PYENV_VERSION = azimuth-config Activating an environment Before you can deploy Azimuth, you must first activate an environment: source ./bin/activate my-site Warning This script must be source d rather than just executed as it exports environment variables into the current shell that are used to configure the deployment. Deploying an environment Once you are happy with any configuration changes and the environment that you want to deploy to has been activated, run the following command to deploy Azimuth: # Install or update Ansible dependencies ansible-galaxy install -f -r ./requirements.yml # Run the provision playbook from the azimuth-ops collection # The inventory is picked up from the ansible.cfg file in the environment ansible-playbook stackhpc.azimuth_ops.provision Tearing down an environment azimuth-ops is also able to tear down an Azimuth environment, including the K3S and HA Kubernetes clusters as required. After activating the environment that you want to tear down, run the following: ansible-playbook stackhpc.azimuth_ops.destroy","title":"Deploying Azimuth"},{"location":"deployment/#deploying-azimuth","text":"","title":"Deploying Azimuth"},{"location":"deployment/#python-dependencies","text":"The Python requirements for an Azimuth deployment host, including Ansible itself, are contained in requirements.txt and must be installed before you can proceed with a deployment. It is recommended to use a virtual environment in order to keep the dependencies isolated from other Python applications on the host. azimuth-config includes a utility script that will create a Python virtual environment in the configuration directory and install the required dependencies: ./bin/ensure-venv If it exists, this virtual environment will be activated as part of the environment activation (see below). If you prefer to manage your own virtual environments then you must ensure that the correct environment is activated and has the required dependencies installed before continuing. For example, if you use pyenv you can set the PYENV_VERSION environment variable in your azimuth-config environment : env PYENV_VERSION = azimuth-config","title":"Python dependencies"},{"location":"deployment/#activating-an-environment","text":"Before you can deploy Azimuth, you must first activate an environment: source ./bin/activate my-site Warning This script must be source d rather than just executed as it exports environment variables into the current shell that are used to configure the deployment.","title":"Activating an environment"},{"location":"deployment/#deploying-an-environment","text":"Once you are happy with any configuration changes and the environment that you want to deploy to has been activated, run the following command to deploy Azimuth: # Install or update Ansible dependencies ansible-galaxy install -f -r ./requirements.yml # Run the provision playbook from the azimuth-ops collection # The inventory is picked up from the ansible.cfg file in the environment ansible-playbook stackhpc.azimuth_ops.provision","title":"Deploying an environment"},{"location":"deployment/#tearing-down-an-environment","text":"azimuth-ops is also able to tear down an Azimuth environment, including the K3S and HA Kubernetes clusters as required. After activating the environment that you want to tear down, run the following: ansible-playbook stackhpc.azimuth_ops.destroy","title":"Tearing down an environment"},{"location":"deployment/automation/","text":"Automating deployments For a production installation of Azimuth, it is recommended to adopt a continuous delivery approach to deployment rather than running deployment commands manually. Using this approach, configuration changes are automatically deployed to test, staging and production environments, although deployments to production typically include a manual approval. Continuous delivery vs continuous deployment Continuous delivery is very similar to Continuous Deployment with the exception that in continuous deployment, production deployments are also fully automated with no manual intervention or approval. Using a site mixin To get the maximum benefit from automated deployments and the feature branch workflow , you should try to minimise the differences between the production, staging and dynamic review environments. The best way to do this is to use a site mixin that contains all the site-specific configuration that is common between your environments, e.g. extra community images, custom Kubernetes templates, networking configuration, and include it in each of your concrete environments. GitLab CI/CD azimuth-config provides a sample configuration for use with GitLab CI/CD that demonstrates how to set up continuous delivery for an Azimuth configuration repository. Tip If you are using GitLab for your configuration repository, make sure you have configured it to use GitLab-managed Terraform state . Runner configuration Configuration of GitLab runners for executing CI/CD jobs is beyond the scope of this documentation. We assume that a runner is available to the configuration project that is able to execute user-specified images, e.g. using the Docker or Kubernetes executors. One option is to deploy a runner as a VM in an OpenStack project . Automated deployments The sample GitLab CI/CD configuration makes use of GitLab environments to manage deployments of Azimuth, where each GitLab environment uses a concrete configuration environment in your repository. This is a one-to-one relationship except for per-branch dynamic review environments , where multiple GitLab environments will use a single configuration environment. If you are using GitLab-managed Terraform state, each GitLab environment (not configuration environment) will get it's own independent Terraform state. The sample configuration defines the following deployment jobs: Each commit to a branch other than main (e.g. a feature branch), triggers an automated deployment to a branch-specific dynamic GitLab environment , using a single concrete configuration environment . These environments are automatically destroyed when the associated merge request is closed. Each commit to main triggers an automated deployment to staging using a static GitLab environment . Each commit to main also creates a job for an automated deployment to production, also using a static environment. However this job requires a manual trigger before it will start. To get started, just copy .gitlab-ci.yml.sample to .gitlab-ci.yml and amend the environment names and paths to match the environments in your configuration. The next commit will begin to trigger deployments. Access to secrets In order for the deployment jobs to access the secrets in your configuration, you will need to provide the git-crypt key as a CI/CD variable for the project . The base64-encoded key should be stored in the GIT_CRYPT_KEY_B64 variable and made available to all branches: git-crypt export-key - | base64 Per-branch dynamic review environments The per-branch dynamic review environments are special in that multiple GitLab environments are provisioned using a single configuration environment. This means that the configuration environment must be capable of producing multiple independent deployments. In particular, it cannot use any fixed floating IPs which also means no fixed DNS entry. Instead it must allocate an IP for itself and use a dynamic DNS service like sslip.io for the ingress domain. This is also how the demo environment works, and is the default if no fixed IP is specified. Single node only At present dynamic review environments must be single node deployments , as HA deployments do not support dynamically allocating a floating IP for the Ingress Controller. A single node is likely to be sufficient for a dynamic review environment, as a full HA deployment for every branch would consume a lot more resources. However you should ensure that you have a full HA deployment as a staging or pre-production environment in order to test that the configuration works. Shared credentials Per-branch dynamic review environments will share the clouds.yaml specified in the configuration environment, and hence will share an OpenStack project. This is not a problem, as multiple isolated deployments can happily coexist in the same project as long as they have different names, but you must ensure that the project has suitable quotas. Activating per-branch review environments Because a single configuration environment is used for multiple deployments, a slight variant of the usual environment activation must be used that specifies both the configuration environment and the GitLab environment name: source ./bin/activate \"\" \"\" A configuration environment for dynamic review environments is set up in the usual way , subject to the caveats above. The following is a minimal set of Ansible variables that will work for most clouds, when combined with the base and singlenode mixin environments (plus any site-specific mixin environments): # Configuration for the K3S node infra_external_network_id : \"\" infra_flavor_id : \"\" # CaaS configuration azimuth_caas_stackhpc_slurm_appliance_login_flavor_name : \"\" azimuth_caas_stackhpc_slurm_appliance_control_flavor_name : \"\" # Azimuth cloud name # This can use the environment name if desired, e.g.: azimuth_current_cloud_name : \"{{ lookup('env', 'CI_ENVIRONMENT_SLUG') }}\" azimuth_current_cloud_label : \"{{ lookup('env', 'CI_ENVIRONMENT_NAME') }}\" # \"Secrets\" # Since the dynamic environments are short-lived, there is not much # risk in using secrets that are not really secret for ease harbor_admin_password : admin harbor_secret_key : notsecret0123456 zenith_registrar_subdomain_token_signing_key : notsecret azimuth_secret_key : notsecret Automated synchronisation of upstream changes The sample configuration also includes a job that can automatically synchronise changes from upstream . If the job detects changes, it will create a new branch, merge the changes into it and create an associated merge request . If you also have per-branch dynamic review environments enabled, then this will automatically trigger a job to deploy the changes for review. The job will only run for a scheduled pipeline , so if you want to have automatic synchronisation of upstream changes you must add a pipeline schedule for the main branch of your configuration repository with a suitable interval (e.g. daily or weekly). Because the job needs to write to the repository and call the merge requests API, the CI/CD job token is not sufficient. Instead, you must set the CI/CD variables GITLAB_PAT_TOKEN and GITLAB_PAT_USERNAME for the scheduled pipeline, which should contain an access token and the corresponding username respectively. The token must have permission to write to the repository and the GitLab API. If your GitLab project has Project access tokens available, then one of these can be used by specifying the associated bot user . Unfortunately, this is a paid feature and the only real alternative is to use a Personal access token . Danger Personal access tokens cannot be scoped to a project. Uploading a personal access token as a CI/CD variable means that other members of the project, and the CI/CD jobs that use it, will be able to see your token. Because of the lack of project scope, this means that a malicious actor may be able to obtain the token and use it to access your other projects. If you do not want to pay for Project access tokens, then you could register a separate service account that only belongs to your configuration project and issue a personal access token from that account instead. GitHub CI/CD For site-specific configuration repositories hosted on GitHub, azimuth-config provides two sample workflows for automated deployments to a test or staging environment ( example workflow ) and manually-triggered deployment to a production environment ( example workflow ). These can be used with GitHub Actions to mimic some of the GitLab functionality described above. Each sample file contains a top-level comment describing how to tailor these workflows to a site-specific configuration repository.","title":"Automating deployments"},{"location":"deployment/automation/#automating-deployments","text":"For a production installation of Azimuth, it is recommended to adopt a continuous delivery approach to deployment rather than running deployment commands manually. Using this approach, configuration changes are automatically deployed to test, staging and production environments, although deployments to production typically include a manual approval. Continuous delivery vs continuous deployment Continuous delivery is very similar to Continuous Deployment with the exception that in continuous deployment, production deployments are also fully automated with no manual intervention or approval. Using a site mixin To get the maximum benefit from automated deployments and the feature branch workflow , you should try to minimise the differences between the production, staging and dynamic review environments. The best way to do this is to use a site mixin that contains all the site-specific configuration that is common between your environments, e.g. extra community images, custom Kubernetes templates, networking configuration, and include it in each of your concrete environments.","title":"Automating deployments"},{"location":"deployment/automation/#gitlab-cicd","text":"azimuth-config provides a sample configuration for use with GitLab CI/CD that demonstrates how to set up continuous delivery for an Azimuth configuration repository. Tip If you are using GitLab for your configuration repository, make sure you have configured it to use GitLab-managed Terraform state . Runner configuration Configuration of GitLab runners for executing CI/CD jobs is beyond the scope of this documentation. We assume that a runner is available to the configuration project that is able to execute user-specified images, e.g. using the Docker or Kubernetes executors. One option is to deploy a runner as a VM in an OpenStack project .","title":"GitLab CI/CD"},{"location":"deployment/automation/#automated-deployments","text":"The sample GitLab CI/CD configuration makes use of GitLab environments to manage deployments of Azimuth, where each GitLab environment uses a concrete configuration environment in your repository. This is a one-to-one relationship except for per-branch dynamic review environments , where multiple GitLab environments will use a single configuration environment. If you are using GitLab-managed Terraform state, each GitLab environment (not configuration environment) will get it's own independent Terraform state. The sample configuration defines the following deployment jobs: Each commit to a branch other than main (e.g. a feature branch), triggers an automated deployment to a branch-specific dynamic GitLab environment , using a single concrete configuration environment . These environments are automatically destroyed when the associated merge request is closed. Each commit to main triggers an automated deployment to staging using a static GitLab environment . Each commit to main also creates a job for an automated deployment to production, also using a static environment. However this job requires a manual trigger before it will start. To get started, just copy .gitlab-ci.yml.sample to .gitlab-ci.yml and amend the environment names and paths to match the environments in your configuration. The next commit will begin to trigger deployments.","title":"Automated deployments"},{"location":"deployment/automation/#access-to-secrets","text":"In order for the deployment jobs to access the secrets in your configuration, you will need to provide the git-crypt key as a CI/CD variable for the project . The base64-encoded key should be stored in the GIT_CRYPT_KEY_B64 variable and made available to all branches: git-crypt export-key - | base64","title":"Access to secrets"},{"location":"deployment/automation/#per-branch-dynamic-review-environments","text":"The per-branch dynamic review environments are special in that multiple GitLab environments are provisioned using a single configuration environment. This means that the configuration environment must be capable of producing multiple independent deployments. In particular, it cannot use any fixed floating IPs which also means no fixed DNS entry. Instead it must allocate an IP for itself and use a dynamic DNS service like sslip.io for the ingress domain. This is also how the demo environment works, and is the default if no fixed IP is specified. Single node only At present dynamic review environments must be single node deployments , as HA deployments do not support dynamically allocating a floating IP for the Ingress Controller. A single node is likely to be sufficient for a dynamic review environment, as a full HA deployment for every branch would consume a lot more resources. However you should ensure that you have a full HA deployment as a staging or pre-production environment in order to test that the configuration works. Shared credentials Per-branch dynamic review environments will share the clouds.yaml specified in the configuration environment, and hence will share an OpenStack project. This is not a problem, as multiple isolated deployments can happily coexist in the same project as long as they have different names, but you must ensure that the project has suitable quotas. Activating per-branch review environments Because a single configuration environment is used for multiple deployments, a slight variant of the usual environment activation must be used that specifies both the configuration environment and the GitLab environment name: source ./bin/activate \"\" \"\" A configuration environment for dynamic review environments is set up in the usual way , subject to the caveats above. The following is a minimal set of Ansible variables that will work for most clouds, when combined with the base and singlenode mixin environments (plus any site-specific mixin environments): # Configuration for the K3S node infra_external_network_id : \"\" infra_flavor_id : \"\" # CaaS configuration azimuth_caas_stackhpc_slurm_appliance_login_flavor_name : \"\" azimuth_caas_stackhpc_slurm_appliance_control_flavor_name : \"\" # Azimuth cloud name # This can use the environment name if desired, e.g.: azimuth_current_cloud_name : \"{{ lookup('env', 'CI_ENVIRONMENT_SLUG') }}\" azimuth_current_cloud_label : \"{{ lookup('env', 'CI_ENVIRONMENT_NAME') }}\" # \"Secrets\" # Since the dynamic environments are short-lived, there is not much # risk in using secrets that are not really secret for ease harbor_admin_password : admin harbor_secret_key : notsecret0123456 zenith_registrar_subdomain_token_signing_key : notsecret azimuth_secret_key : notsecret","title":"Per-branch dynamic review environments"},{"location":"deployment/automation/#automated-synchronisation-of-upstream-changes","text":"The sample configuration also includes a job that can automatically synchronise changes from upstream . If the job detects changes, it will create a new branch, merge the changes into it and create an associated merge request . If you also have per-branch dynamic review environments enabled, then this will automatically trigger a job to deploy the changes for review. The job will only run for a scheduled pipeline , so if you want to have automatic synchronisation of upstream changes you must add a pipeline schedule for the main branch of your configuration repository with a suitable interval (e.g. daily or weekly). Because the job needs to write to the repository and call the merge requests API, the CI/CD job token is not sufficient. Instead, you must set the CI/CD variables GITLAB_PAT_TOKEN and GITLAB_PAT_USERNAME for the scheduled pipeline, which should contain an access token and the corresponding username respectively. The token must have permission to write to the repository and the GitLab API. If your GitLab project has Project access tokens available, then one of these can be used by specifying the associated bot user . Unfortunately, this is a paid feature and the only real alternative is to use a Personal access token . Danger Personal access tokens cannot be scoped to a project. Uploading a personal access token as a CI/CD variable means that other members of the project, and the CI/CD jobs that use it, will be able to see your token. Because of the lack of project scope, this means that a malicious actor may be able to obtain the token and use it to access your other projects. If you do not want to pay for Project access tokens, then you could register a separate service account that only belongs to your configuration project and issue a personal access token from that account instead.","title":"Automated synchronisation of upstream changes"},{"location":"deployment/automation/#github-cicd","text":"For site-specific configuration repositories hosted on GitHub, azimuth-config provides two sample workflows for automated deployments to a test or staging environment ( example workflow ) and manually-triggered deployment to a production environment ( example workflow ). These can be used with GitHub Actions to mimic some of the GitLab functionality described above. Each sample file contains a top-level comment describing how to tailor these workflows to a site-specific configuration repository.","title":"GitHub CI/CD"},{"location":"developing/","text":"Developing Azimuth An Azimuth deployment consists of several interdependent components, some of which are Azimuth-specific and some of which are third-party components. Plugging code under development into such a system can be tricky, making development difficult and slow. Developing Azimuth components Azimuth has a number of components, mostly written in Python: Azimuth API and UI - user-facing API and UI Azimuth CaaS operator - Kubernetes operator implementing CaaS functionality Azimuth CAPI operator - Kubernetes operator implementing Kubernetes and Kubernetes App functionality Azimuth identity operator - Kubernetes operator implementing platform identity Zenith - secure, tunnelling application proxy used to expose platform services Cluster API addon provider - addons for Cluster API clusters Cluster API janitor for OpenStack - resource cleanup for Cluster API clusters on OpenStack clouds It is useful to develop these components in the context of a running Azimuth installation, as they have dependencies on each other. To enable this, Azimuth uses Tilt to provide a developer environment where code under development is automatically built and injected into a live system that you can interact with. Tilt provides a dashboard that can be used to drill down into build failures and the logs of the components under development. Prerequisites In order to use Tilt to develop Azimuth, the following tools must be available on your development machine (in addition to those required to install Azimuth itself): The Tilt CLI A docker command, e.g. Docker Desktop The kubectl command The Helm CLI For developing the Azimuth UI, the following are also required: node.js The Yarn Classic package manager Deploying a dev instance To use Tilt for developing Azimuth components, you first need a running Azimuth instance. Each developer should have their own independent instance of Azimuth as Tilt will make changes to the running Azimuth components, based on the code under development, that may disrupt or break things for others. Tip A single node deployment, e.g. a demo deployment , is sufficient for developing the Azimuth components. You may wish to maintain a development environment containing site-specific customisations. The following instructions assume that your Azimuth configuration contains a developer environment called dev . It is assumed that you have your Azimuth configuration checked out and that you have an application credential for the target cloud. To stand up your developer-specific Azimuth instance, using the dev environment, use the following: # Set OpenStack configuration variables export OS_CLOUD = openstack export OS_CLIENT_CONFIG_FILE = /path/to/clouds.yaml # Activate the dev config environment with a specific instance name # # This means that resources created for the instance will not collide # with other deployments that use the dev environment source ./bin/activate dev jbloggs-dev # Install Azimuth as usual ansible-galaxy install -f -r requirements.yml ansible-playbook stackhpc.azimuth_ops.provision Configuring a container registry Azimuth's Tilt configuration looks for a file called tilt-settings.yaml that defines settings for the development environment. This file is specific to you and should not be added to version control (it is specified in .gitignore ). In order to get the code under development into your running Azimuth instance, Tilt must have access to a container registry that is accessible to both your development machine and the Azimuth instance. In response to code changes, Tilt will automatically build and push images to this registry and then configure the Azimuth instance to use them. To configure the prefix for images built by Tilt, use the following setting: tilt-settings.yaml # Images will be pushed to: # ghcr.io/jbloggs/azimuth-api # ghcr.io/jbloggs/azimuth-ui # ghcr.io/jbloggs/azimuth-caas-operator # ... image_prefix : ghcr.io/jbloggs Tip A good candidate for this is to use GitHub Packages with your user account, as in the example above. This means that development builds do not require access to or clutter up the production repositories. When using GitHub Packages, the repositories that are created by Tilt when it builds images for the first time will be private. You must log into GitHub and make them public before your Azimuth instance can use them. Until you do this, you will see image pull errors in the Tilt interface. Using the Tilt environment Tilt will look for checkouts of Azimuth components as siblings of your Azimuth configuration and include them in your development environment. For example, the following directory structure will result in a development environment where changes to the Azimuth API, UI and CaaS operators are built and pushed into your development Azimuth instance for testing: . \u251c\u2500\u2500 azimuth \u2502 \u251c\u2500\u2500 api \u2502 \u251c\u2500\u2500 chart \u2502 \u251c\u2500\u2500 ui \u2502 \u2514\u2500\u2500 ... \u251c\u2500\u2500 azimuth-caas-operator \u2502 \u251c\u2500\u2500 Dockerfile \u2502 \u251c\u2500\u2500 azimuth_caas_operator \u2502 \u251c\u2500\u2500 charts \u2502 \u2514\u2500\u2500 ... \u2514\u2500\u2500 myorg-azimuth-config \u251c\u2500\u2500 Tiltfile \u251c\u2500\u2500 bin \u251c\u2500\u2500 environments \u251c\u2500\u2500 tilt-settings.yaml \u2514\u2500\u2500 ... If you wish to prevent a particular component being included in your development environment, even if the checkout exists as a sibling, you can configure this using the enabled flag for the component in tilt-settings.yaml . For example, the following would prevent the CaaS operator from being included in the development environment, even with the directory structure above: tilt-settings.yaml components : azimuth-caas-operator : enabled : false Once you have checked out all of the components that you want to develop, you can start the development environment using: ./bin/tilt-up This will configure Tilt to connect to your Azimuth instance and begin watching your local checkouts for changes. When a change is detected, Tilt will build and push an image for the component before reconfiguring the Helm release for the component to point to the new image. Once this process is complete, you can interact with your changes using the Azimuth UI for your instance. Tip Press the space bar to launch the Tilt user interface . When the tilt-up command is terminated, all of the Helm releases for the components that were under development are rolled back to the version that was running before the command was started. Local UI development Because of how the user interface is optimised for production, the container image build for the Azimuth UI is very slow even for a minor change. Because of this, the usual Tilt flow of build/push/deploy is not suitable for UI development. To improve the feedback cycle for UI development, the Azimuth Tilt environment also builds and runs the Azimuth UI locally using the webpack DevServer . The UI communicates with the Azimuth API on your Azimuth dev instance using a forwarded port (this is necessary in order for the cookie-based authentication to work properly). The local version of the UI is available at http://localhost:3000 . Note The UI container image is still built, pushed and deployed in the background. However changes made to the JS files will be visible in the local version much faster.","title":"Developing Azimuth"},{"location":"developing/#developing-azimuth","text":"An Azimuth deployment consists of several interdependent components, some of which are Azimuth-specific and some of which are third-party components. Plugging code under development into such a system can be tricky, making development difficult and slow.","title":"Developing Azimuth"},{"location":"developing/#developing-azimuth-components","text":"Azimuth has a number of components, mostly written in Python: Azimuth API and UI - user-facing API and UI Azimuth CaaS operator - Kubernetes operator implementing CaaS functionality Azimuth CAPI operator - Kubernetes operator implementing Kubernetes and Kubernetes App functionality Azimuth identity operator - Kubernetes operator implementing platform identity Zenith - secure, tunnelling application proxy used to expose platform services Cluster API addon provider - addons for Cluster API clusters Cluster API janitor for OpenStack - resource cleanup for Cluster API clusters on OpenStack clouds It is useful to develop these components in the context of a running Azimuth installation, as they have dependencies on each other. To enable this, Azimuth uses Tilt to provide a developer environment where code under development is automatically built and injected into a live system that you can interact with. Tilt provides a dashboard that can be used to drill down into build failures and the logs of the components under development.","title":"Developing Azimuth components"},{"location":"developing/#prerequisites","text":"In order to use Tilt to develop Azimuth, the following tools must be available on your development machine (in addition to those required to install Azimuth itself): The Tilt CLI A docker command, e.g. Docker Desktop The kubectl command The Helm CLI For developing the Azimuth UI, the following are also required: node.js The Yarn Classic package manager","title":"Prerequisites"},{"location":"developing/#deploying-a-dev-instance","text":"To use Tilt for developing Azimuth components, you first need a running Azimuth instance. Each developer should have their own independent instance of Azimuth as Tilt will make changes to the running Azimuth components, based on the code under development, that may disrupt or break things for others. Tip A single node deployment, e.g. a demo deployment , is sufficient for developing the Azimuth components. You may wish to maintain a development environment containing site-specific customisations. The following instructions assume that your Azimuth configuration contains a developer environment called dev . It is assumed that you have your Azimuth configuration checked out and that you have an application credential for the target cloud. To stand up your developer-specific Azimuth instance, using the dev environment, use the following: # Set OpenStack configuration variables export OS_CLOUD = openstack export OS_CLIENT_CONFIG_FILE = /path/to/clouds.yaml # Activate the dev config environment with a specific instance name # # This means that resources created for the instance will not collide # with other deployments that use the dev environment source ./bin/activate dev jbloggs-dev # Install Azimuth as usual ansible-galaxy install -f -r requirements.yml ansible-playbook stackhpc.azimuth_ops.provision","title":"Deploying a dev instance"},{"location":"developing/#configuring-a-container-registry","text":"Azimuth's Tilt configuration looks for a file called tilt-settings.yaml that defines settings for the development environment. This file is specific to you and should not be added to version control (it is specified in .gitignore ). In order to get the code under development into your running Azimuth instance, Tilt must have access to a container registry that is accessible to both your development machine and the Azimuth instance. In response to code changes, Tilt will automatically build and push images to this registry and then configure the Azimuth instance to use them. To configure the prefix for images built by Tilt, use the following setting: tilt-settings.yaml # Images will be pushed to: # ghcr.io/jbloggs/azimuth-api # ghcr.io/jbloggs/azimuth-ui # ghcr.io/jbloggs/azimuth-caas-operator # ... image_prefix : ghcr.io/jbloggs Tip A good candidate for this is to use GitHub Packages with your user account, as in the example above. This means that development builds do not require access to or clutter up the production repositories. When using GitHub Packages, the repositories that are created by Tilt when it builds images for the first time will be private. You must log into GitHub and make them public before your Azimuth instance can use them. Until you do this, you will see image pull errors in the Tilt interface.","title":"Configuring a container registry"},{"location":"developing/#using-the-tilt-environment","text":"Tilt will look for checkouts of Azimuth components as siblings of your Azimuth configuration and include them in your development environment. For example, the following directory structure will result in a development environment where changes to the Azimuth API, UI and CaaS operators are built and pushed into your development Azimuth instance for testing: . \u251c\u2500\u2500 azimuth \u2502 \u251c\u2500\u2500 api \u2502 \u251c\u2500\u2500 chart \u2502 \u251c\u2500\u2500 ui \u2502 \u2514\u2500\u2500 ... \u251c\u2500\u2500 azimuth-caas-operator \u2502 \u251c\u2500\u2500 Dockerfile \u2502 \u251c\u2500\u2500 azimuth_caas_operator \u2502 \u251c\u2500\u2500 charts \u2502 \u2514\u2500\u2500 ... \u2514\u2500\u2500 myorg-azimuth-config \u251c\u2500\u2500 Tiltfile \u251c\u2500\u2500 bin \u251c\u2500\u2500 environments \u251c\u2500\u2500 tilt-settings.yaml \u2514\u2500\u2500 ... If you wish to prevent a particular component being included in your development environment, even if the checkout exists as a sibling, you can configure this using the enabled flag for the component in tilt-settings.yaml . For example, the following would prevent the CaaS operator from being included in the development environment, even with the directory structure above: tilt-settings.yaml components : azimuth-caas-operator : enabled : false Once you have checked out all of the components that you want to develop, you can start the development environment using: ./bin/tilt-up This will configure Tilt to connect to your Azimuth instance and begin watching your local checkouts for changes. When a change is detected, Tilt will build and push an image for the component before reconfiguring the Helm release for the component to point to the new image. Once this process is complete, you can interact with your changes using the Azimuth UI for your instance. Tip Press the space bar to launch the Tilt user interface . When the tilt-up command is terminated, all of the Helm releases for the components that were under development are rolled back to the version that was running before the command was started.","title":"Using the Tilt environment"},{"location":"developing/#local-ui-development","text":"Because of how the user interface is optimised for production, the container image build for the Azimuth UI is very slow even for a minor change. Because of this, the usual Tilt flow of build/push/deploy is not suitable for UI development. To improve the feedback cycle for UI development, the Azimuth Tilt environment also builds and runs the Azimuth UI locally using the webpack DevServer . The UI communicates with the Azimuth API on your Azimuth dev instance using a forwarded port (this is necessary in order for the cookie-based authentication to work properly). The local version of the UI is available at http://localhost:3000 . Note The UI container image is still built, pushed and deployed in the background. However changes made to the JS files will be visible in the local version much faster.","title":"Local UI development"},{"location":"repository/","text":"Azimuth configuration repository The azimuth-config repository provides best-practice configuration for Azimuth deployments that can be inherited by site-specific configuration repositories using Git . Using Git makes it easy to pick up new Azimuth releases when they become available. Initial repository setup First make an empty Git repository using your service of choice (e.g. GitHub or GitLab ), then execute the following commands to turn the new empty repository into a copy of the azimuth-config repository: # Clone the azimuth-config repository git clone https://github.com/stackhpc/azimuth-config.git my-azimuth-config cd my-azimuth-config # Maintain the existing origin remote as upstream git remote rename origin upstream # Create a new origin remote for the repository location git remote add origin git@/my-azimuth-config.git # Checkout stable to get the latest release git checkout stable # Create a new main branch from stable # This will be the branch that is deployed into production git checkout -b main # Push the main branch to the origin git push --set-upstream origin main You now have an independent copy of the azimuth-config repository that has a link back to the source repository via the upstream remote. Branch protection rules It is a good idea to apply branch protection rules to the main branch that enforce that all changes are made via a merge (or pull) request. This should ensure that changes are not accidentally pushed into production without being reviewed. Instructions are available on how to set this up for GitHub or GitLab . Creating a new environment Your new repository does not yet contain any site-specific configuration. The best way to do this is to copy the example environment as a starting point: cp -r ./environments/example ./environments/my-site Tip Copying the example environment, rather than just renaming it, avoids conflicts when synchronising changes from the azimuth-config repository where the example environment has changed. Once you have your new environment, you can make the required changes for your site. As you make changes to your environment, remember to commit and push them regularly: git add ./environments/my-site git commit -m \"Made some changes to my environment\" git push Making changes to your configuration Once you have an environment deployed, it is recommended to use a feature branch workflow when making changes to your configuration repository. Automated deployments The feature branch workflow works particularly well when you use a continuous delivery approach to automate deployments . In this workflow, the required changes are made on a branch in the configuration repository. Once you are happy with the changes, you create a merge (or pull) request proposing the changes to main . These changes can then be reviewed before being merged to main . If you have automated deployments, the branch may even get a dynamic environment created for it where the result of the changes can be verified before the merge takes place. Upgrading to a new Azimuth release When a new Azimuth release becomes available, you will need to synchronise the changes from azimuth-config into your site configuration repository in order to pick up new component versions, upgraded dependencies and new images. Choosing a release The available releases, with associated release notes, can be reviewed on the Azimuth releases page . To upgrade your Azimuth configuration to a new release, use the following steps to create a new branch containing the upgrade: # Make sure the local checkout is up to date with any site-specific changes git checkout main git pull # Fetch the tags from the upstream repo git remote update # Create a new branch to contain the Azimuth upgrade git checkout -b upgrade/ $RELEASE_TAG # Merge in the tag for the new release git merge $RELEASE_TAG At this point, you will need to fix any conflicts where you have made changes to the same files that have been changed by azimuth-config . Avoiding conflicts To avoid conflicts, you should never directly modify any files that come from azimuth-config - instead you should use the environment layering to override variables where required, and copy files if necessary. Once any conflicts have been resolved, you can commit and push the changes: git commit -m \"Upgrade Azimuth to $RELEASE_TAG \" git push --set-upstream origin upgrade/ $RELEASE_TAG You can now open a merge (or pull) request proposing the upgrade to your main branch that can be reviewed like any other.","title":"Azimuth configuration repository"},{"location":"repository/#azimuth-configuration-repository","text":"The azimuth-config repository provides best-practice configuration for Azimuth deployments that can be inherited by site-specific configuration repositories using Git . Using Git makes it easy to pick up new Azimuth releases when they become available.","title":"Azimuth configuration repository"},{"location":"repository/#initial-repository-setup","text":"First make an empty Git repository using your service of choice (e.g. GitHub or GitLab ), then execute the following commands to turn the new empty repository into a copy of the azimuth-config repository: # Clone the azimuth-config repository git clone https://github.com/stackhpc/azimuth-config.git my-azimuth-config cd my-azimuth-config # Maintain the existing origin remote as upstream git remote rename origin upstream # Create a new origin remote for the repository location git remote add origin git@/my-azimuth-config.git # Checkout stable to get the latest release git checkout stable # Create a new main branch from stable # This will be the branch that is deployed into production git checkout -b main # Push the main branch to the origin git push --set-upstream origin main You now have an independent copy of the azimuth-config repository that has a link back to the source repository via the upstream remote. Branch protection rules It is a good idea to apply branch protection rules to the main branch that enforce that all changes are made via a merge (or pull) request. This should ensure that changes are not accidentally pushed into production without being reviewed. Instructions are available on how to set this up for GitHub or GitLab .","title":"Initial repository setup"},{"location":"repository/#creating-a-new-environment","text":"Your new repository does not yet contain any site-specific configuration. The best way to do this is to copy the example environment as a starting point: cp -r ./environments/example ./environments/my-site Tip Copying the example environment, rather than just renaming it, avoids conflicts when synchronising changes from the azimuth-config repository where the example environment has changed. Once you have your new environment, you can make the required changes for your site. As you make changes to your environment, remember to commit and push them regularly: git add ./environments/my-site git commit -m \"Made some changes to my environment\" git push","title":"Creating a new environment"},{"location":"repository/#making-changes-to-your-configuration","text":"Once you have an environment deployed, it is recommended to use a feature branch workflow when making changes to your configuration repository. Automated deployments The feature branch workflow works particularly well when you use a continuous delivery approach to automate deployments . In this workflow, the required changes are made on a branch in the configuration repository. Once you are happy with the changes, you create a merge (or pull) request proposing the changes to main . These changes can then be reviewed before being merged to main . If you have automated deployments, the branch may even get a dynamic environment created for it where the result of the changes can be verified before the merge takes place.","title":"Making changes to your configuration"},{"location":"repository/#upgrading-to-a-new-azimuth-release","text":"When a new Azimuth release becomes available, you will need to synchronise the changes from azimuth-config into your site configuration repository in order to pick up new component versions, upgraded dependencies and new images. Choosing a release The available releases, with associated release notes, can be reviewed on the Azimuth releases page . To upgrade your Azimuth configuration to a new release, use the following steps to create a new branch containing the upgrade: # Make sure the local checkout is up to date with any site-specific changes git checkout main git pull # Fetch the tags from the upstream repo git remote update # Create a new branch to contain the Azimuth upgrade git checkout -b upgrade/ $RELEASE_TAG # Merge in the tag for the new release git merge $RELEASE_TAG At this point, you will need to fix any conflicts where you have made changes to the same files that have been changed by azimuth-config . Avoiding conflicts To avoid conflicts, you should never directly modify any files that come from azimuth-config - instead you should use the environment layering to override variables where required, and copy files if necessary. Once any conflicts have been resolved, you can commit and push the changes: git commit -m \"Upgrade Azimuth to $RELEASE_TAG \" git push --set-upstream origin upgrade/ $RELEASE_TAG You can now open a merge (or pull) request proposing the upgrade to your main branch that can be reviewed like any other.","title":"Upgrading to a new Azimuth release"},{"location":"repository/secrets/","text":"Managing secrets Each Azimuth environment contains a small number of files and variable values that must be kept secret. However we would also like to have these files and variables in version control so that we can track when they have changed and share them with others in our team. The way to achieve both these goals is to encrypt the secrets when at rest in the Git repository. For an Azimuth configuration repository, the recommended method for doing this is using git-crypt . git-crypt provides transparent encryption and decryption of files in a Git repository using Git filters . This allows for a mix of encrypted and unencrypted content in the same repository, which is exactly what we want for an Azimuth configuration. By encrypting files when they are committed and decrypting them when they are checked out, git-crypt allows you to work as if the encryption is not present while being confident that your secrets remain private. Team members can also work on the public parts of the repository without decrypting the private parts if you wish to maintain separation of privilege. git-crypt works on entire files, not at the variable level, so it is recommended that encrypted files contain only secret values so that information is not hidden unnecessarily. To this end, a typical azimuth-config environment for a site will have one or more group_vars files in the inventory that are unencrypted, but secret values will be placed in a secrets.yaml that is encrypted. Initialising git-crypt To initialise git-crypt for your config repository, first make sure that the CLI is installed. This can be installed using the package manager on most major Linux operating systems, using Homebrew on Mac OSX or by building from source . Then execute the following command to begin encrypting files: git-crypt init Danger If you lose access to the key that git-crypt generates to encrypt your repository, you will be locked out of the repository for good. It is recommended that you export the key (see below) and store it somewhere safe, e.g. in your organisation's secret store. Verifying which files are encrypted azimuth-config contains a .gitattributes file that ensures all clouds.yaml , secrets.yaml , env.secret and TLS key files in the repository will be encrypted (except those for the example environment). If required, you can add additional patterns to the file to encrypt other files. You can check the files that git-crypt is encrypting using the following command: git-crypt status -e Granting access to others As mentioned above, team members can work on the public parts of the repository without decrypting the encrypted files. However in order to make a deployment, the secrets must be decrypted - git-crypt refers to this process as \"unlocking\". Using a shared secret key The simplest way to grant access to the encrypted files in a repository is by sharing the secret key generated by git-crypt . The key is binary, so the best way to share the key is by base64-encoding it: git-crypt export-key - | base64 To unlock the repository you must first clone it, then use the key to unlock it: # Clone the repository git clone $REPOSITORY_URL # Move into the repository directory cd $REPOSITORY_DIR # Unlock it using the base64-encoded key echo $GIT_CRYPT_KEY_B64 | base64 -d | git-crypt unlock - Using GPG keys git-crypt is also able to grant access to the repository using GPG keys . This avoids the use of shared secrets and makes it explicit in the repository who has access. A full discussion of the use of GPG is beyond the scope of this documentation, including the generation of keys, as it differs substantially depending on your operating system. To add a GPG key to your repository, use the following command: git-crypt add-gpg-user USER_ID where USER_ID is a key ID, a full fingerprint, an email address, or anything else that uniquely identifies a public key to GPG. You will then need to push the changes to the repository that encode the user's access: git push To unlock a repository using your GPG identity, just execute: git-crypt unlock","title":"Managing secrets"},{"location":"repository/secrets/#managing-secrets","text":"Each Azimuth environment contains a small number of files and variable values that must be kept secret. However we would also like to have these files and variables in version control so that we can track when they have changed and share them with others in our team. The way to achieve both these goals is to encrypt the secrets when at rest in the Git repository. For an Azimuth configuration repository, the recommended method for doing this is using git-crypt . git-crypt provides transparent encryption and decryption of files in a Git repository using Git filters . This allows for a mix of encrypted and unencrypted content in the same repository, which is exactly what we want for an Azimuth configuration. By encrypting files when they are committed and decrypting them when they are checked out, git-crypt allows you to work as if the encryption is not present while being confident that your secrets remain private. Team members can also work on the public parts of the repository without decrypting the private parts if you wish to maintain separation of privilege. git-crypt works on entire files, not at the variable level, so it is recommended that encrypted files contain only secret values so that information is not hidden unnecessarily. To this end, a typical azimuth-config environment for a site will have one or more group_vars files in the inventory that are unencrypted, but secret values will be placed in a secrets.yaml that is encrypted.","title":"Managing secrets"},{"location":"repository/secrets/#initialising-git-crypt","text":"To initialise git-crypt for your config repository, first make sure that the CLI is installed. This can be installed using the package manager on most major Linux operating systems, using Homebrew on Mac OSX or by building from source . Then execute the following command to begin encrypting files: git-crypt init Danger If you lose access to the key that git-crypt generates to encrypt your repository, you will be locked out of the repository for good. It is recommended that you export the key (see below) and store it somewhere safe, e.g. in your organisation's secret store.","title":"Initialising git-crypt"},{"location":"repository/secrets/#verifying-which-files-are-encrypted","text":"azimuth-config contains a .gitattributes file that ensures all clouds.yaml , secrets.yaml , env.secret and TLS key files in the repository will be encrypted (except those for the example environment). If required, you can add additional patterns to the file to encrypt other files. You can check the files that git-crypt is encrypting using the following command: git-crypt status -e","title":"Verifying which files are encrypted"},{"location":"repository/secrets/#granting-access-to-others","text":"As mentioned above, team members can work on the public parts of the repository without decrypting the encrypted files. However in order to make a deployment, the secrets must be decrypted - git-crypt refers to this process as \"unlocking\".","title":"Granting access to others"},{"location":"repository/secrets/#using-a-shared-secret-key","text":"The simplest way to grant access to the encrypted files in a repository is by sharing the secret key generated by git-crypt . The key is binary, so the best way to share the key is by base64-encoding it: git-crypt export-key - | base64 To unlock the repository you must first clone it, then use the key to unlock it: # Clone the repository git clone $REPOSITORY_URL # Move into the repository directory cd $REPOSITORY_DIR # Unlock it using the base64-encoded key echo $GIT_CRYPT_KEY_B64 | base64 -d | git-crypt unlock -","title":"Using a shared secret key"},{"location":"repository/secrets/#using-gpg-keys","text":"git-crypt is also able to grant access to the repository using GPG keys . This avoids the use of shared secrets and makes it explicit in the repository who has access. A full discussion of the use of GPG is beyond the scope of this documentation, including the generation of keys, as it differs substantially depending on your operating system. To add a GPG key to your repository, use the following command: git-crypt add-gpg-user USER_ID where USER_ID is a key ID, a full fingerprint, an email address, or anything else that uniquely identifies a public key to GPG. You will then need to push the changes to the repository that encode the user's access: git push To unlock a repository using your GPG identity, just execute: git-crypt unlock","title":"Using GPG keys"},{"location":"repository/terraform/","text":"Terraform state azimuth-ops uses Terraform to manage the K3S node in both the single node and high-availability deployment methods. In order to keep track of the resources that it has created, and how they map to the resources in the Terraform configuration generated by azimuth-ops , Terraform must store its state somewhere. The location of the state is determined by the backend configuration . Each environment in an azimuth-config repository has a corresponding Terraform state, and they are independent from each other. Local state By default azimuth-ops will use the local backend, which stores the Terraform state as a file on the local disk in the .work directory. This requires no explicit configuration, but comes with the usual caveats about keeping important state on your local machine. Not suitable for production Local state is sufficient for a demonstration or evaluation, but for a shared or production deployment it is recommended to use remote state. Remote state Terraform supports a number of remote backends that can be used to persist Terraform state independently of where a deployment is run. This allows deployments to be made from anywhere that can access the state without corrupting or conflicting with any existing resources from previous deployments. Tip If you want to use the same remote backend configuration for multiple environments , consider using a site mixin environment to avoid specifying the configuration multiple times. Warning In order to avoid multiple writers when using remote state, it is recommended to use a backend that supports state locking . Secret configuration Some of the configuration variables for remote backends, e.g. passwords and keys, should be kept secret. If you want to keep such variables in Git - which is recommended where possible - then they must be encrypted . GitLab Tip This is the recommended option if you are using GitLab for your config repository. If you are using GitLab to host your configuration repository, either gitlab.com or self-hosted, you can use GitLab-managed Terraform state to store the Terraform state for your environments. GitLab provides a HTTP backend that can be configured as follows: environments/my-site/inventory/group_vars/all/variables.yml terraform_backend_type : http # The API base URL for the target GitLab project # For a self-hosted GitLab instance, replace gitlab.com with your domain gitlab_project_url : \"https://gitlab.com/api/v4/projects/\" # The state endpoint for the environment # # Using the azimuth_environment variable as the state name means that each # concrete environment gets a separate managed Terraform state even if this # configuration is in a shared mixin environment terraform_http_address : \"{{ gitlab_project_url }}/terraform/state/{{ azimuth_environment }}\" # The state-locking and unlocking endpoints for the environment terraform_http_lock_address : \"{{ terraform_http_address }}/lock\" terraform_http_lock_method : POST terraform_http_unlock_address : \"{{ terraform_http_lock_address }}\" terraform_http_unlock_method : DELETE terraform_backend_config : address : \"{{ terraform_http_address }}\" lock_address : \"{{ terraform_http_lock_address }}\" lock_method : \"{{ terraform_http_lock_method }}\" unlock_address : \"{{ terraform_http_unlock_address }}\" unlock_method : \"{{ terraform_http_unlock_method }}\" Tip If you want to use the same backend configuration for multiple environments , consider using a site mixin environment to avoid specifying the configuration multiple times. The username and password (or token) that are used to authenticate with GitLab to manage the Terraform state are set using the TF_HTTP_USERNAME and TF_HTTP_PASSWORD environment variables respectively. If you are using GitLab CI/CD to automate deployments , then the pipeline will be issued with a suitable token. The sample configuration includes configuration to populate these variables using this token. If you are not using automation but your GitLab installation has project access tokens available, you can configure a project access token and store it (encrypted!) in the env.secret file, referencing the bot username: env.secret TF_HTTP_USERNAME = \"project__bot\" TF_HTTP_PASSWORD = \"\" If you need to access an environment deployed using automation, or you do not have project access tokens available, then you can use a Personal access token , which at least avoids using your password. Never commit personal access tokens You should never commit a personal access token to the configuration repository, even encrypted, because it is not possible to set a project scope. If using a personal access token, you should export the relevant variables before activating an environment: export TF_HTTP_USERNAME = \"\" export TF_HTTP_PASSWORD = \"\" source ./bin/activate my-site S3 Terraform also has an S3 backend that is able to store state in any S3-compatible object store, such as Amazon S3 or Ceph Object Gateway . Depending on the provider of your object store, the specific configuration options in the following section may differ. The example configuration shown here is for a Ceph object store as Ceph is often used together with OpenStack. See the Terraform docs for the S3 backend for all the available options. environments/my-site/inventory/group_vars/all/variables.yml terraform_backend_type : s3 # The endpoint of the object store terraform_s3_endpoint : object.example.com # The region to use # Ceph does not normally use the region, but Terraform requires it terraform_s3_region : not-used-but-required terraform_s3_skip_region_validation : \"true\" # The bucket to put Terraform states in # NOTE: This bucket must already exist - it will not be created by Terraform terraform_s3_bucket : azimuth-terraform-states # The key to use for the state for the environment # # Using the azimuth_environment variable in the key means that the state # for each concrete environment is stored in a separate key, even if this # configuration is in a shared mixin environment terraform_s3_key : \"{{ azimuth_environment }}.tfstate\" # The STS API doesn't exist for Ceph terraform_s3_skip_credentials_validation : \"true\" # Tell Terraform to use path-style URLs, e.g. /, instead of # subdomain-style URLs, e.g. . terraform_s3_force_path_style : \"true\" terraform_backend_config : endpoint : \"{{ terraform_s3_endpoint }}\" region : \"{{ terraform_s3_region }}\" bucket : \"{{ terraform_s3_bucket }}\" key : \"{{ terraform_s3_key }}\" skip_credentials_validation : \"{{ terraform_s3_skip_credentials_validation }}\" force_path_style : \"{{ terraform_s3_force_path_style }}\" skip_region_validation : \"{{ terraform_s3_skip_region_validation }}\" The S3 credentials (access key ID and secret), can be specified either as environment variables or as Ansible variables. To use environment variables, just place the credentials in env.secret : env.secret AWS_ACCESS_KEY_ID = \"\" AWS_SECRET_ACCESS_KEY = \"\" To use Ansible variables, they should be added to secrets.yml and referenced in the terraform_backend_config variable: environments/my-site/inventory/group_vars/all/secrets.yml terraform_s3_access_key : \"\" terraform_s3_secret_key : \"\" environments/my-site/inventory/group_vars/all/variables.yml terraform_backend_config : # ... other options ... access_key : \"{{ terraform_s3_access_key }}\" secret_key : \"{{ terraform_s3_secret_key }}\"","title":"Terraform state"},{"location":"repository/terraform/#terraform-state","text":"azimuth-ops uses Terraform to manage the K3S node in both the single node and high-availability deployment methods. In order to keep track of the resources that it has created, and how they map to the resources in the Terraform configuration generated by azimuth-ops , Terraform must store its state somewhere. The location of the state is determined by the backend configuration . Each environment in an azimuth-config repository has a corresponding Terraform state, and they are independent from each other.","title":"Terraform state"},{"location":"repository/terraform/#local-state","text":"By default azimuth-ops will use the local backend, which stores the Terraform state as a file on the local disk in the .work directory. This requires no explicit configuration, but comes with the usual caveats about keeping important state on your local machine. Not suitable for production Local state is sufficient for a demonstration or evaluation, but for a shared or production deployment it is recommended to use remote state.","title":"Local state"},{"location":"repository/terraform/#remote-state","text":"Terraform supports a number of remote backends that can be used to persist Terraform state independently of where a deployment is run. This allows deployments to be made from anywhere that can access the state without corrupting or conflicting with any existing resources from previous deployments. Tip If you want to use the same remote backend configuration for multiple environments , consider using a site mixin environment to avoid specifying the configuration multiple times. Warning In order to avoid multiple writers when using remote state, it is recommended to use a backend that supports state locking . Secret configuration Some of the configuration variables for remote backends, e.g. passwords and keys, should be kept secret. If you want to keep such variables in Git - which is recommended where possible - then they must be encrypted .","title":"Remote state"},{"location":"repository/terraform/#gitlab","text":"Tip This is the recommended option if you are using GitLab for your config repository. If you are using GitLab to host your configuration repository, either gitlab.com or self-hosted, you can use GitLab-managed Terraform state to store the Terraform state for your environments. GitLab provides a HTTP backend that can be configured as follows: environments/my-site/inventory/group_vars/all/variables.yml terraform_backend_type : http # The API base URL for the target GitLab project # For a self-hosted GitLab instance, replace gitlab.com with your domain gitlab_project_url : \"https://gitlab.com/api/v4/projects/\" # The state endpoint for the environment # # Using the azimuth_environment variable as the state name means that each # concrete environment gets a separate managed Terraform state even if this # configuration is in a shared mixin environment terraform_http_address : \"{{ gitlab_project_url }}/terraform/state/{{ azimuth_environment }}\" # The state-locking and unlocking endpoints for the environment terraform_http_lock_address : \"{{ terraform_http_address }}/lock\" terraform_http_lock_method : POST terraform_http_unlock_address : \"{{ terraform_http_lock_address }}\" terraform_http_unlock_method : DELETE terraform_backend_config : address : \"{{ terraform_http_address }}\" lock_address : \"{{ terraform_http_lock_address }}\" lock_method : \"{{ terraform_http_lock_method }}\" unlock_address : \"{{ terraform_http_unlock_address }}\" unlock_method : \"{{ terraform_http_unlock_method }}\" Tip If you want to use the same backend configuration for multiple environments , consider using a site mixin environment to avoid specifying the configuration multiple times. The username and password (or token) that are used to authenticate with GitLab to manage the Terraform state are set using the TF_HTTP_USERNAME and TF_HTTP_PASSWORD environment variables respectively. If you are using GitLab CI/CD to automate deployments , then the pipeline will be issued with a suitable token. The sample configuration includes configuration to populate these variables using this token. If you are not using automation but your GitLab installation has project access tokens available, you can configure a project access token and store it (encrypted!) in the env.secret file, referencing the bot username: env.secret TF_HTTP_USERNAME = \"project__bot\" TF_HTTP_PASSWORD = \"\" If you need to access an environment deployed using automation, or you do not have project access tokens available, then you can use a Personal access token , which at least avoids using your password. Never commit personal access tokens You should never commit a personal access token to the configuration repository, even encrypted, because it is not possible to set a project scope. If using a personal access token, you should export the relevant variables before activating an environment: export TF_HTTP_USERNAME = \"\" export TF_HTTP_PASSWORD = \"\" source ./bin/activate my-site","title":"GitLab"},{"location":"repository/terraform/#s3","text":"Terraform also has an S3 backend that is able to store state in any S3-compatible object store, such as Amazon S3 or Ceph Object Gateway . Depending on the provider of your object store, the specific configuration options in the following section may differ. The example configuration shown here is for a Ceph object store as Ceph is often used together with OpenStack. See the Terraform docs for the S3 backend for all the available options. environments/my-site/inventory/group_vars/all/variables.yml terraform_backend_type : s3 # The endpoint of the object store terraform_s3_endpoint : object.example.com # The region to use # Ceph does not normally use the region, but Terraform requires it terraform_s3_region : not-used-but-required terraform_s3_skip_region_validation : \"true\" # The bucket to put Terraform states in # NOTE: This bucket must already exist - it will not be created by Terraform terraform_s3_bucket : azimuth-terraform-states # The key to use for the state for the environment # # Using the azimuth_environment variable in the key means that the state # for each concrete environment is stored in a separate key, even if this # configuration is in a shared mixin environment terraform_s3_key : \"{{ azimuth_environment }}.tfstate\" # The STS API doesn't exist for Ceph terraform_s3_skip_credentials_validation : \"true\" # Tell Terraform to use path-style URLs, e.g. /, instead of # subdomain-style URLs, e.g. . terraform_s3_force_path_style : \"true\" terraform_backend_config : endpoint : \"{{ terraform_s3_endpoint }}\" region : \"{{ terraform_s3_region }}\" bucket : \"{{ terraform_s3_bucket }}\" key : \"{{ terraform_s3_key }}\" skip_credentials_validation : \"{{ terraform_s3_skip_credentials_validation }}\" force_path_style : \"{{ terraform_s3_force_path_style }}\" skip_region_validation : \"{{ terraform_s3_skip_region_validation }}\" The S3 credentials (access key ID and secret), can be specified either as environment variables or as Ansible variables. To use environment variables, just place the credentials in env.secret : env.secret AWS_ACCESS_KEY_ID = \"\" AWS_SECRET_ACCESS_KEY = \"\" To use Ansible variables, they should be added to secrets.yml and referenced in the terraform_backend_config variable: environments/my-site/inventory/group_vars/all/secrets.yml terraform_s3_access_key : \"\" terraform_s3_secret_key : \"\" environments/my-site/inventory/group_vars/all/variables.yml terraform_backend_config : # ... other options ... access_key : \"{{ terraform_s3_access_key }}\" secret_key : \"{{ terraform_s3_secret_key }}\"","title":"S3"}]} \ No newline at end of file diff --git a/sitemap.xml b/sitemap.xml new file mode 100644 index 00000000..c2750f14 --- /dev/null +++ b/sitemap.xml @@ -0,0 +1,168 @@ + + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + + None + 2024-02-26 + daily + + \ No newline at end of file diff --git a/sitemap.xml.gz b/sitemap.xml.gz new file mode 100644 index 00000000..69a1fce0 Binary files /dev/null and b/sitemap.xml.gz differ diff --git a/try/index.html b/try/index.html new file mode 100644 index 00000000..6f880e98 --- /dev/null +++ b/try/index.html @@ -0,0 +1,1150 @@ + + + + + + + + + + + + + + + + Try Azimuth - Azimuth Operator Documentation + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
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    + + +
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    + + + + +

    Try Azimuth

    +

    If you have access to a project on an OpenStack cloud, you can try Azimuth!

    +

    The azimuth-config repository +contains a special environment called demo that will +provision a short-lived Azimuth deployment for demonstration purposes +only. This environment attempts to infer all required configuration from +the target OpenStack cloud - if this process is unsuccessful, an error will +be produced.

    +
    +

    Danger

    +

    Inferring configuration in the way that the demo environment does is +not recommended as it is not guaranteed to produce the same result +each time. For production deployments it is better to be explicit.

    +

    To get started with a production deployment, see the +best practice guide.

    +
    +

    Deploying a demo instance

    +

    The Azimuth deployment requires a +clouds.yaml +to run. Ideally, this should be an +Application Credential.

    +

    Once you have a clouds.yaml, run the following to deploy the Azimuth demo +environment:

    +
    # Set OpenStack configuration variables
+export OS_CLOUD=openstack
+export OS_CLIENT_CONFIG_FILE=/path/to/clouds.yaml
+
+# Clone the azimuth-config repository
+git clone https://github.com/stackhpc/azimuth-config
+cd azimuth-config
+
+# Set up the virtual environment
+./bin/ensure-venv
+
+# Activate the demo environment
+source ./bin/activate demo
+
+# Install Ansible dependencies
+ansible-galaxy install -f -r requirements.yml
+
+# Deploy Azimuth
+ansible-playbook stackhpc.azimuth_ops.provision
+
    +

    The URL for the Azimuth UI is printed at the end of the playbook run. The +credentials you use to authenticate with Azimuth are the same as you would +use with the underlying OpenStack cloud.

    +
    +

    Warning

    +

    Azimuth is deployed using Ansible, which +does not support Windows as a controller. +Azimuth deployment has been tested on Linux and macOS.

    +
    +

    Limitations

    +

    The demo deployment has a number of limitations in order to give it the best +chance of running on any given cloud:

    +
      +
    • It uses the + single node deployment method.
      • +
    • Community images are uploaded + as private images, so Azimuth will only be able to provision Kubernetes + clusters and Cluster-as-a-Service appliances in the same project as it + is deployed in.
      • +
    • sslip.io is used to provide DNS. This avoids the need + for a DNS entry to be provisioned in advance.
      • +
    • TLS is disabled for ingress, allowing the + Azimuth to work even when the deployment is not reachable from the + internet (outbound internet connectivity is still required).
      • +
    • Verification of SSL certificates for the OpenStack API is disabled, + allowing Azimuth to work even when the target cloud uses a custom CA.
      • +
    • The deployment secrets are not secret, as they are stored in plain + text in the azimuth-config repository on GitHub.
      • +
    + +
    +
    + + + Last update: + February 23, 2024 + +
    + Created: + February 23, 2024 + + +     +
    + + +
    + +
    +
    + + + +
    + + + +
    +
    +
    +
    + + + + + + + + \ No newline at end of file