プロジェクト作成

.editorconfig

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+[*]
+indent_style = tab
+indent_size = 2
+charset = utf-8
+insert_final_newline = true
+end_of_line = lf
+
+[*.yml]
+indent_style = space

.env.example

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+DISCORD_APP_TOKEN=
+BOT_NAME=2na2
+SET_COMMANDS_TARGET_SERVERS=""

.eslintrc

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+{
+	"parser": "@typescript-eslint/parser",
+	"plugins": [
+		"import",
+		"@typescript-eslint"
+	],
+	"extends": [
+		"plugin:@typescript-eslint/recommended",
+		"prettier"
+	],
+	"root": true,
+	"env": {
+		"node": true,
+		"jest": true
+	},
+	"ignorePatterns": [
+		".eslintrc.js"
+	],
+	"settings": {
+		"import/resolver": {
+			"typescript": {}
+		}
+	},
+	"rules": {
+		"@typescript-eslint/interface-name-prefix": "off",
+		"@typescript-eslint/explicit-function-return-type": "off",
+		"@typescript-eslint/explicit-module-boundary-types": "off",
+		"@typescript-eslint/no-unused-vars": [
+			"error",
+			{
+				"varsIgnorePattern": "^_",
+				"argsIgnorePattern": "^_"
+			}
+		],
+		"import/no-duplicates": "error",
+		"import/order": [
+			"error",
+			{
+				"groups": [
+					"builtin",
+					"external"
+				],
+				"pathGroups": [
+					{
+						"pattern": "@/**",
+						"group": "external",
+						"position": "after"
+					}
+				],
+				"alphabetize": {
+					"order": "asc"
+				},
+				"newlines-between": "always"
+			}
+		],
+		"@typescript-eslint/consistent-type-imports": [
+			"error",
+			{
+				"prefer": "type-imports"
+			}
+		],
+		"@typescript-eslint/naming-convention": [
+			"error",
+			{
+				"selector": "typeAlias",
+				"format": [
+					"PascalCase"
+				]
+			}
+		],
+		"no-restricted-imports": "off",
+		"@typescript-eslint/no-restricted-imports": [
+			"error",
+			{
+				"patterns": [
+					{
+						"group": [
+							"./*/**/internal/**/*",
+							"@/**/internal/**/*",
+							"../**/internal/**/*",
+							"@/features/**/internal/**/*"
+						],
+						"message": "Do not import internal modules."
+					}
+				]
+			}
+		],
+		"object-shorthand": "error"
+	}
+}

.github/workflows/cd-for-pr.yml

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+name: CD for PR
+on:
+  pull_request:
+    branches:
+      - main
+      - v3
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - ready_for_review
+      - labeled
+      - unlabeled
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  prepare:
+    if: github.event.pull_request.draft == false
+    timeout-minutes: 60
+    runs-on:
+      - ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+  ci:
+    uses: ./.github/workflows/ci.yml
+    secrets: inherit
+    needs: prepare

.github/workflows/ci.yml

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+name: CI
+on: workflow_call
+
+jobs:
+  Build:
+    timeout-minutes: 60
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Setup asdf
+        uses: asdf-vm/actions/[email protected]
+        continue-on-error: true
+      - name: asdf install
+        uses: asdf-vm/actions/[email protected]
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+      - name: Build
+        run: pnpm build
+
+  TypeCheck:
+    timeout-minutes: 60
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Setup asdf
+        uses: asdf-vm/actions/[email protected]
+        continue-on-error: true
+      - name: asdf install
+        uses: asdf-vm/actions/[email protected]
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+      - name: typecheck
+        run: pnpm tsc --noEmit
+
+  Lint:
+    timeout-minutes: 60
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Setup asdf
+        uses: asdf-vm/actions/[email protected]
+        continue-on-error: true
+      - name: asdf install
+        uses: asdf-vm/actions/[email protected]
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+      - name: fmt
+        run: pnpm fmt
+      - name: lint
+        run: pnpm lint
+
+  Test:
+    timeout-minutes: 60
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Setup asdf
+        uses: asdf-vm/actions/[email protected]
+        continue-on-error: true
+      - name: asdf install
+        uses: asdf-vm/actions/[email protected]
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+      - name: test
+        run: pnpm test:coverage
+        env:
+          TZ: Asia/Tokyo

.gitignore

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+node_modules
+coverage
+dist/
+.env

.prettierrc

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+{
+  "arrowParens": "avoid",
+  "bracketSpacing": true,
+  "jsxSingleQuote": false,
+  "printWidth": 80,
+  "quoteProps": "as-needed",
+  "rangeStart": 0,
+  "rangeEnd": 999999,
+  "semi": true,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "es5",
+  "useTabs": false
+}

.swcrc

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+{
+	"$schema": "https://json.schemastore.org/swcrc",
+	"jsc": {
+		"baseUrl": ".",
+		"parser": {
+			"syntax": "typescript",
+			"dynamicImport": false,
+			"decorators": false
+		},
+		"target": "esnext",
+		"loose": false,
+		"externalHelpers": false,
+		"keepClassNames": false,
+		"paths": {
+			"@/*": [
+				"src/*"
+			]
+		}
+	},
+	"module": {
+		"type": "es6"
+	},
+	"minify": false
+}

.tool-versions

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+nodejs 20.9.0
+pnpm 8.10.2

.vscode/extensions.json

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+{
+    "recommendations": [
+        "streetsidesoftware.code-spell-checker",
+        "dbaeumer.vscode-eslint",
+        "esbenp.prettier-vscode"
+    ]
+}

.vscode/settings.json

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+{
+    "editor.formatOnSave": true,
+    "editor.formatOnSaveMode": "file",
+    "editor.defaultFormatter": "esbenp.prettier-vscode",
+    "files.eol": "\n",
+    "[typescript]": {
+        "editor.defaultFormatter": "esbenp.prettier-vscode"
+    },
+    "[typescriptreact]": {
+        "editor.defaultFormatter": "esbenp.prettier-vscode"
+    },
+    "typescript.tsdk": "node_modules/typescript/lib",
+    "editor.codeActionsOnSave": {
+        "source.fixAll.eslint": true,
+        "source.fixAll.stylelint": true
+    },
+    "cSpell.words": [
+        "swcrc"
+    ]
+}

jest.config.js

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+import { readFileSync } from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+const config = JSON.parse(readFileSync(`${__dirname}/.swcrc`, 'utf-8'));
+
+/** @type {import('jest').Config} */
+const jestConfig = {
+  extensionsToTreatAsEsm: ['.ts'],
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1',
+  },
+  transform: {
+    '^.+\\.tsx?$': ['@swc/jest', { ...config }],
+  },
+  setupFiles: ['<rootDir>/setup-global.ts'],
+  injectGlobals: true,
+  testEnvironment: 'node',
+  testTimeout: 200,
+
+  testPathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/dist/'],
+  modulePathIgnorePatterns: ['<rootDir>/dist/'],
+
+  restoreMocks: true,
+  clearMocks: true,
+  resetMocks: true,
+};
+
+export default jestConfig;

loader.mjs

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+import { isBuiltin } from 'node:module';
+import { dirname } from 'node:path';
+import { cwd } from 'node:process';
+import { fileURLToPath, pathToFileURL } from 'node:url';
+import { promisify } from 'node:util';
+
+import resolveCallback from 'resolve/async.js';
+
+const resolveAsync = promisify(resolveCallback);
+
+const baseURL = pathToFileURL(cwd() + '/').href;
+
+/**
+ * commonjs-extension-resolution-loader
+ * Originally written by Geoffrey Booth
+ * Edited and modified by na2na
+ * https://github.com/nodejs/loaders-test
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+export async function resolve(specifier, context, next) {
+  const { parentURL = baseURL } = context;
+
+  if (isBuiltin(specifier)) {
+    return next(specifier, context);
+  }
+
+  // `resolveAsync` works with paths, not URLs
+  if (specifier.startsWith('file://')) {
+    specifier = fileURLToPath(specifier);
+  }
+  const parentPath = fileURLToPath(parentURL);
+
+  let url;
+  try {
+    const resolution = await resolveAsync(specifier, {
+      basedir: dirname(parentPath),
+      extensions: ['.js', '.json', '.node', '.mjs'],
+    });
+    url = pathToFileURL(resolution).href;
+  } catch (error) {
+    return next(specifier, context, next);
+  }
+
+  return next(url, context);
+}