chore: initial commit

LICENSE

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+ISC License
+
+Copyright (c) 2021 Sirisak Lueangsaksri
+based on the work by Maxim Baz on [lightline-ale](https://github.com/maximbaz/lightline-ale)
+
+Copyright (c) 2017-2021, Maxim Baz
+
+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.

README.md

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+# lightline-lsp
+
+This plugin provides neovim's LSP diagnostic indicator for the [lightline](https://github.com/itchyny/lightline.vim) vim plugin.
+
+![screenshot](./screenshot.png)
+
+## Table Of Contents
+
+* [Installation](#installation)
+* [Integration](#integration)
+* [Configuration](#configuration)
+* [License](#license)
+
+## Installation
+
+Install using a plugin manager of your choice, for example:
+
+```viml
+" neovim 0.5 or later which support lsp and lua
+Plug 'itchyny/lightline.vim'    " Dependency: status line
+Plug 'spywhere/lightline-lsp'
+```
+
+## Integration
+
+1. Register the components:
+
+```viml
+let g:lightline = {}
+
+let g:lightline.component_expand = {
+      \  'linter_hints': 'lightline#lsp#hints',
+      \  'linter_infos': 'lightline#lsp#infos',
+      \  'linter_warnings': 'lightline#lsp#warnings',
+      \  'linter_errors': 'lightline#lsp#errors',
+      \  'linter_ok': 'lightline#lsp#ok',
+      \ }
+```
+
+2. Set color to the components:
+
+```viml
+let g:lightline.component_type = {
+      \     'linter_hints': 'right',
+      \     'linter_infos': 'right',
+      \     'linter_warnings': 'warning',
+      \     'linter_errors': 'error',
+      \     'linter_ok': 'right',
+      \ }
+```
+
+3. Add the components to the lightline, for example to the right side:
+
+```viml
+let g:lightline.active = { 'right': [[ 'linter_errors', 'linter_warnings', 'linter_infos', 'linter_hints', 'linter_ok' ]] }
+```
+
+## Configuration
+
+##### `g:lightline#lsp#indicator_hints`
+
+The indicator to use when there are hints. Default is `H:`.
+
+##### `g:lightline#lsp#indicator_infos`
+
+The indicator to use when there are infos. Default is `I:`.
+
+##### `g:lightline#lsp#indicator_warnings`
+
+The indicator to use when there are warnings. Default is `W:`.
+
+##### `g:lightline#lsp#indicator_errors`
+
+The indicator to use when there are errors. Default is `E:`.
+
+##### `g:lightline#lsp#indicator_ok`
+
+The indicator to use when there are no diagnostic. Default is `OK`.
+
+### Using icons as indicators
+
+If you would like to replace the default indicators with symbols like on the screenshot, then you'll need to ensure you have some "iconic fonts" installed, such as [Font Awesome](https://fontawesome.com). A common alternative is to replace your primary font with one of the [Patched Nerd Fonts](https://github.com/ryanoasis/nerd-fonts), which saves you from having to install multiple fonts.
+
+The following icons from the Font Awesome font are used in the screenshot:
+
+* Hints: [f002](https://fontawesome.com/icons/search)
+* Infos: [f129](https://fontawesome.com/icons/info)
+* Warnings: [f071](https://fontawesome.com/icons/exclamation-triangle)
+* Errors: [f05e](https://fontawesome.com/icons/ban)
+* OK: [f00c](https://fontawesome.com/icons/check)
+
+To specify icons in the configuration, use their unicode codes as `"\uXXXX"` (make sure to wrap them in double quotes). Alternatively copy the icons from a font website, or type <kbd>\<C-v\>u\<4-digit-unicode\></kbd> or <kbd>\<C-v\>U\<8-digit-unicode\></kbd> to insert the literal characters.
+
+See the code points here:
+
+* Font Awesome: https://fontawesome.com/icons
+* Nerd Fonts: https://github.com/ryanoasis/nerd-fonts#glyph-sets
+
+Here's the configuration snippet used in the screenshot:
+
+```viml
+let g:lightline#lsp#indicator_hints = "\uf002"
+let g:lightline#lsp#indicator_infos = "\uf129"
+let g:lightline#lsp#indicator_warnings = "\uf071"
+let g:lightline#lsp#indicator_errors = "\uf05e"
+let g:lightline#lsp#indicator_ok = "\uf00c"
+```
+
+## License
+
+Released under the [ISC License](LICENSE)
+based on the work by Maxim Baz on [lightline-ale](https://github.com/maximbaz/lightline-ale)

autoload/lightline/lsp.vim

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+let s:indicator_hints = get(g:, 'lightline#lsp#indicator_hints', 'H: ')
+let s:indicator_infos = get(g:, 'lightline#lsp#indicator_infos', 'I: ')
+let s:indicator_warnings = get(g:, 'lightline#lsp#indicator_warnings', 'W: ')
+let s:indicator_errors = get(g:, 'lightline#lsp#indicator_errors', 'E: ')
+let s:indicator_ok = get(g:, 'lightline#lsp#indicator_ok', 'OK')
+
+
+""""""""""""""""""""""
+" Lightline components
+
+function! lightline#lsp#hints() abort
+  if !lightline#lsp#linted()
+    return ''
+  endif
+  let l:counts = luaeval('vim.lsp.diagnostic.get_count('.bufnr().', [[Hint]])')
+  return l:counts == 0 ? '' : printf(s:indicator_hints . '%d', counts)
+endfunction
+
+function! lightline#lsp#infos() abort
+  if !lightline#lsp#linted()
+    return ''
+  endif
+  let l:counts = luaeval('vim.lsp.diagnostic.get_count('.bufnr().', [[Info]])')
+  return l:counts == 0 ? '' : printf(s:indicator_infos . '%d', counts)
+endfunction
+
+function! lightline#lsp#warnings() abort
+  if !lightline#lsp#linted()
+    return ''
+  endif
+  let l:counts = luaeval('vim.lsp.diagnostic.get_count('.bufnr().', [[Warning]])')
+  return l:counts == 0 ? '' : printf(s:indicator_warnings . '%d', counts)
+endfunction
+
+function! lightline#lsp#errors() abort
+  if !lightline#lsp#linted()
+    return ''
+  endif
+  let l:counts = luaeval('vim.lsp.diagnostic.get_count('.bufnr().', [[Error]])')
+  return l:counts == 0 ? '' : printf(s:indicator_errors . '%d', counts)
+endfunction
+
+function! lightline#lsp#ok() abort
+  if !lightline#lsp#linted()
+    return ''
+  endif
+  let l:hint_counts = luaeval('vim.lsp.diagnostic.get_count('.bufnr().', [[Hint]])')
+  let l:info_counts = luaeval('vim.lsp.diagnostic.get_count('.bufnr().', [[Info]])')
+  let l:warn_counts = luaeval('vim.lsp.diagnostic.get_count('.bufnr().', [[Warning]])')
+  let l:error_counts = luaeval('vim.lsp.diagnostic.get_count('.bufnr().', [[Error]])')
+  let l:counts = l:hint_counts+l:info_counts+l:warn_counts+l:error_counts
+  return l:counts == 0 ? s:indicator_ok : ''
+endfunction
+
+""""""""""""""""""
+" Helper functions
+
+function! lightline#lsp#linted() abort
+  return !!luaeval('not vim.tbl_isempty(vim.lsp.buf_get_clients('.bufnr().'))')
+endfunction

plugin/lightline/lsp.vim

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+augroup lightline#lsp
+  autocmd!
+  autocmd User LspDiagnosticsChanged call lightline#update()
+augroup END