Move eslint.config.js to Typescript (#58027)

eslint.config.ts

@@ -0,0 +1,143 @@
+import js from '@eslint/js'
+import tseslint from '@typescript-eslint/eslint-plugin'
+import tsParser from '@typescript-eslint/parser'
+import github from 'eslint-plugin-github'
+import importPlugin from 'eslint-plugin-import'
+import jsxA11y from 'eslint-plugin-jsx-a11y'
+import primerReact from 'eslint-plugin-primer-react'
+import eslintComments from 'eslint-plugin-eslint-comments'
+import i18nText from 'eslint-plugin-i18n-text'
+import filenames from 'eslint-plugin-filenames'
+import noOnlyTests from 'eslint-plugin-no-only-tests'
+import prettierPlugin from 'eslint-plugin-prettier'
+import prettier from 'eslint-config-prettier'
+import globals from 'globals'
+
+export default [
+  {
+    files: ['**/*.{ts,tsx}'],
+    languageOptions: {
+      parser: tsParser,
+      ecmaVersion: 2022,
+      sourceType: 'module',
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+        ...globals.commonjs,
+        ...globals.es2020,
+      },
+      parserOptions: {
+        requireConfigFile: false,
+      },
+    },
+    settings: {
+      'import/resolver': {
+        typescript: true,
+        node: true,
+      },
+    },
+    plugins: {
+      github,
+      import: importPlugin,
+      'eslint-comments': eslintComments,
+      'i18n-text': i18nText,
+      filenames,
+      'no-only-tests': noOnlyTests,
+      prettier: prettierPlugin,
+      '@typescript-eslint': tseslint,
+      'primer-react': primerReact,
+      'jsx-a11y': jsxA11y,
+    },
+    rules: {
+      // ESLint recommended rules
+      ...js.configs.recommended.rules,
+
+      // GitHub plugin recommended rules
+      ...github.configs.recommended.rules,
+
+      // Import plugin error rules
+      ...importPlugin.configs.errors.rules,
+
+      // TypeScript ESLint recommended rules
+      ...tseslint.configs.recommended.rules,
+
+      // Primer React recommended rules
+      ...primerReact.configs.recommended.rules,
+
+      // JSX A11y recommended rules
+      ...jsxA11y.configs.recommended.rules,
+
+      // TypeScript-specific overrides
+      'import/no-extraneous-dependencies': [
+        'error',
+        {
+          packageDir: '.',
+        },
+      ],
+      'import/extensions': 'off',
+      'no-console': 'off',
+      camelcase: 'off',
+      'no-shadow': 'off',
+      'prefer-template': 'off',
+      'no-constant-condition': 'off',
+      'no-unused-vars': 'off',
+      'no-undef': 'off',
+      'no-use-before-define': 'off',
+      'no-redeclare': 'off', // Allow function overloads in TypeScript
+      'import/no-named-as-default-member': 'off',
+      'one-var': 'off',
+      'import/no-namespace': 'off',
+      'import/no-anonymous-default-export': 'off',
+      'object-shorthand': 'off',
+      'no-empty': 'off',
+      'prefer-const': 'off',
+      'import/no-named-as-default': 'off',
+      'no-useless-concat': 'off',
+      'func-style': 'off',
+
+      // TypeScript ESLint specific rules
+      '@typescript-eslint/no-unused-vars': 'error',
+
+      // Disable GitHub plugin rules that were disabled in original config
+      'github/array-foreach': 'off',
+      'github/no-then': 'off',
+
+      // Disable rules that might not exist or cause issues initially
+      'i18n-text/no-en': 'off',
+      'filenames/match-regex': 'off',
+      'eslint-comments/no-use': 'off',
+      'eslint-comments/no-unused-disable': 'off',
+      'eslint-comments/no-unlimited-disable': 'off',
+
+      // Disable new ESLint 9 rules that are causing issues
+      'no-constant-binary-expression': 'off',
+
+      // Disable stricter TypeScript rules initially
+      '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/no-unused-expressions': 'off',
+      '@typescript-eslint/ban-ts-comment': 'off',
+      '@typescript-eslint/no-wrapper-object-types': 'off',
+      '@typescript-eslint/no-non-null-asserted-optional-chain': 'off',
+      '@typescript-eslint/no-unsafe-function-type': 'off',
+      '@typescript-eslint/no-empty-object-type': 'off',
+      '@typescript-eslint/prefer-as-const': 'off',
+
+      // React/JSX specific rules
+      'jsx-a11y/no-onchange': 'off',
+    },
+  },
+
+  // Ignored patterns
+  {
+    ignores: [
+      'tmp/*',
+      '.next/',
+      'rest-api-description/',
+      'docs-internal-data/',
+      'src/code-scanning/scripts/generate-code-scanning-query-list.ts',
+    ],
+  },
+
+  // Prettier config (should be last to override formatting rules)
+  prettier,
+]