Reconfigure linters for ESM

.eslintignore

@@ -1,4 +0,0 @@
-lib/
-dist/
-node_modules/
-coverage/

.github/linters/.eslintrc.yml

@@ -1,64 +0,0 @@
-env:
-  node: true
-  es6: true
-  jest: true
-
-globals:
-  Atomics: readonly
-  SharedArrayBuffer: readonly
-
-ignorePatterns:
-  - '!.*'
-  - '**/node_modules/.*'
-  - '**/dist/.*'
-  - '**/coverage/.*'
-  - '*.json'
-
-parser: '@typescript-eslint/parser'
-
-parserOptions:
-  ecmaVersion: 2023
-  sourceType: module
-  project:
-    - './.github/linters/tsconfig.json'
-    - './tsconfig.json'
-
-plugins:
-  - jest
-  - '@typescript-eslint'
-
-extends:
-  - eslint:recommended
-  - plugin:@typescript-eslint/recommended-type-checked
-  - plugin:jest/recommended
-
-rules:
-  {
-    'camelcase': 'off',
-    'eslint-comments/no-use': 'off',
-    'eslint-comments/no-unused-disable': 'off',
-    'i18n-text/no-en': 'off',
-    'import/no-namespace': 'off',
-    'no-console': 'off',
-    'semi': 'off',
-    '@typescript-eslint/array-type': 'error',
-    '@typescript-eslint/consistent-type-assertions': 'error',
-    '@typescript-eslint/explicit-member-accessibility':
-      ['error', { 'accessibility': 'no-public' }],
-    '@typescript-eslint/explicit-function-return-type':
-      ['error', { 'allowExpressions': true }],
-    '@typescript-eslint/no-empty-interface': 'error',
-    '@typescript-eslint/no-extraneous-class': 'error',
-    '@typescript-eslint/no-inferrable-types': 'error',
-    '@typescript-eslint/no-non-null-assertion': 'warn',
-    '@typescript-eslint/no-unnecessary-qualifier': 'error',
-    '@typescript-eslint/no-useless-constructor': 'error',
-    '@typescript-eslint/no-var-requires': 'error',
-    '@typescript-eslint/prefer-for-of': 'warn',
-    '@typescript-eslint/prefer-function-type': 'warn',
-    '@typescript-eslint/prefer-includes': 'error',
-    '@typescript-eslint/prefer-string-starts-ends-with': 'error',
-    '@typescript-eslint/promise-function-async': 'error',
-    '@typescript-eslint/require-array-sort-compare': 'error',
-    '@typescript-eslint/space-before-function-paren': 'off'
-  }

.github/linters/tsconfig.json

@@ -1,9 +0,0 @@
-{
-  "$schema": "https://json.schemastore.org/tsconfig",
-  "extends": "../../tsconfig.json",
-  "compilerOptions": {
-    "noEmit": true
-  },
-  "include": ["../../__tests__/**/*", "../../src/**/*"],
-  "exclude": ["../../dist", "../../node_modules", "../../coverage", "*.json"]
-}

.github/workflows/linter.yml

@@ -43,6 +43,7 @@ jobs:
           DEFAULT_BRANCH: main
           FILTER_REGEX_EXCLUDE: dist/**/*
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          LINTER_RULES_PATH: ${{ github.workspace }}
           VALIDATE_ALL_CODEBASE: true
           VALIDATE_JAVASCRIPT_STANDARD: false
           VALIDATE_JSCPD: false

.markdown-lint.yml

@@ -1,7 +1,13 @@
+# See: https://github.com/DavidAnson/markdownlint
+
 # Unordered list style
 MD004:
   style: dash
 
+# Disable line length for tables
+MD013:
+  tables: false
+
 # Ordered list item prefix
 MD029:
   style: one

.prettierignore

@@ -1,3 +1,4 @@
+.DS_Store
 dist/
 node_modules/
 coverage/

.prettierrc.json

@@ -1,16 +0,0 @@
-{
-  "printWidth": 80,
-  "tabWidth": 2,
-  "useTabs": false,
-  "semi": false,
-  "singleQuote": true,
-  "quoteProps": "as-needed",
-  "jsxSingleQuote": false,
-  "trailingComma": "none",
-  "bracketSpacing": true,
-  "bracketSameLine": true,
-  "arrowParens": "avoid",
-  "proseWrap": "always",
-  "htmlWhitespaceSensitivity": "css",
-  "endOfLine": "lf"
-}

.prettierrc.yml

@@ -0,0 +1,16 @@
+# See: https://prettier.io/docs/en/configuration
+
+printWidth: 80
+tabWidth: 2
+useTabs: false
+semi: false
+singleQuote: true
+quoteProps: as-needed
+jsxSingleQuote: false
+trailingComma: none
+bracketSpacing: true
+bracketSameLine: true
+arrowParens: always
+proseWrap: always
+htmlWhitespaceSensitivity: css
+endOfLine: lf

.yaml-lint.yml

@@ -1,3 +1,5 @@
+# See: https://yamllint.readthedocs.io/en/stable/
+
 rules:
   document-end: disable
   document-start:

eslint.config.mjs

@@ -0,0 +1,81 @@
+// See: https://eslint.org/docs/latest/use/configure/configuration-files
+
+import { fixupPluginRules } from '@eslint/compat'
+import { FlatCompat } from '@eslint/eslintrc'
+import js from '@eslint/js'
+import typescriptEslint from '@typescript-eslint/eslint-plugin'
+import tsParser from '@typescript-eslint/parser'
+import _import from 'eslint-plugin-import'
+import jest from 'eslint-plugin-jest'
+import prettier from 'eslint-plugin-prettier'
+import globals from 'globals'
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all
+})
+
+export default [
+  {
+    ignores: ['**/coverage', '**/dist', '**/linter', '**/node_modules']
+  },
+  ...compat.extends(
+    'eslint:recommended',
+    'plugin:@typescript-eslint/eslint-recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:jest/recommended',
+    'plugin:prettier/recommended'
+  ),
+  {
+    plugins: {
+      import: fixupPluginRules(_import),
+      jest,
+      prettier,
+      '@typescript-eslint': typescriptEslint
+    },
+
+    languageOptions: {
+      globals: {
+        ...globals.node,
+        ...globals.jest,
+        Atomics: 'readonly',
+        SharedArrayBuffer: 'readonly'
+      },
+
+      parser: tsParser,
+      ecmaVersion: 2023,
+      sourceType: 'module',
+
+      parserOptions: {
+        project: ['tsconfig.eslint.json'],
+        tsconfigRootDir: '.'
+      }
+    },
+
+    settings: {
+      'import/resolver': {
+        typescript: {
+          alwaysTryTypes: true,
+          project: 'tsconfig.eslint.json'
+        }
+      }
+    },
+
+    rules: {
+      camelcase: 'off',
+      'eslint-comments/no-use': 'off',
+      'eslint-comments/no-unused-disable': 'off',
+      'i18n-text/no-en': 'off',
+      'import/no-namespace': 'off',
+      'no-console': 'off',
+      'no-shadow': 'off',
+      'no-unused-vars': 'off',
+      'prettier/prettier': 'error'
+    }
+  }
+]

package.json

@@ -37,49 +37,22 @@
     "all": "npm run format:write && npm run lint && npm run test && npm run coverage && npm run package"
   },
   "license": "MIT",
-  "jest": {
-    "preset": "ts-jest",
-    "verbose": true,
-    "clearMocks": true,
-    "testEnvironment": "node",
-    "moduleFileExtensions": [
-      "js",
-      "ts"
-    ],
-    "testMatch": [
-      "**/*.test.ts"
-    ],
-    "testPathIgnorePatterns": [
-      "/node_modules/",
-      "/dist/"
-    ],
-    "transform": {
-      "^.+\\.ts$": "ts-jest"
-    },
-    "coverageReporters": [
-      "json-summary",
-      "text",
-      "lcov"
-    ],
-    "collectCoverage": true,
-    "collectCoverageFrom": [
-      "./src/**"
-    ]
-  },
   "dependencies": {
     "@actions/core": "^1.11.1"
   },
   "devDependencies": {
+    "@eslint/compat": "^1.2.3",
     "@github/local-action": "^2.2.0",
     "@jest/globals": "^29.7.0",
     "@types/jest": "^29.5.14",
     "@types/node": "^22.9.0",
-    "@typescript-eslint/eslint-plugin": "^8.13.0",
-    "@typescript-eslint/parser": "^8.13.0",
-    "@vercel/ncc": "^0.38.2",
-    "eslint": "^8.57.0",
+    "@typescript-eslint/eslint-plugin": "^8.14.0",
+    "@typescript-eslint/parser": "^8.14.0",
+    "eslint": "^9.14.0",
+    "eslint-config-prettier": "^9.1.0",
+    "eslint-import-resolver-typescript": "^3.6.3",
+    "eslint-plugin-import": "^2.31.0",
     "eslint-plugin-jest": "^28.9.0",
-    "eslint-plugin-jsonc": "^2.18.1",
     "eslint-plugin-prettier": "^5.2.1",
     "jest": "^29.7.0",
     "make-coverage-badge": "^1.2.0",

tsconfig.base.json

@@ -0,0 +1,23 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "compilerOptions": {
+    "allowSyntheticDefaultImports": true,
+    "declaration": true,
+    "declarationMap": false,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "lib": ["ES2022"],
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "newLine": "lf",
+    "noImplicitAny": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": false,
+    "pretty": true,
+    "resolveJsonModule": true,
+    "sourceMap": true,
+    "strict": true,
+    "strictNullChecks": true,
+    "target": "ES2022"
+  }
+}

tsconfig.eslint.json

@@ -0,0 +1,17 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "extends": "./tsconfig.base.json",
+  "compilerOptions": {
+    "allowJs": true,
+    "noEmit": true
+  },
+  "exclude": ["dist", "node_modules"],
+  "include": [
+    "__fixtures__",
+    "__tests__",
+    "src",
+    "eslint.config.mjs",
+    "jest.config.ts",
+    "rollup.config.ts"
+  ]
+}

tsconfig.json

@@ -1,19 +1,11 @@
 {
   "$schema": "https://json.schemastore.org/tsconfig",
+  "extends": "./tsconfig.base.json",
   "compilerOptions": {
-    "target": "ES2022",
     "module": "NodeNext",
-    "rootDir": "./src",
     "moduleResolution": "NodeNext",
-    "baseUrl": "./",
-    "sourceMap": true,
-    "outDir": "./dist",
-    "noImplicitAny": true,
-    "esModuleInterop": true,
-    "forceConsistentCasingInFileNames": true,
-    "strict": true,
-    "skipLibCheck": true,
-    "newLine": "lf"
+    "outDir": "./dist"
   },
-  "exclude": ["./dist", "./node_modules", "./__tests__", "./coverage"]
+  "exclude": ["__fixtures__", "__tests__", "coverage", "dist", "node_modules"],
+  "include": ["src"]
 }