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| /** | |
| * @license | |
| * Copyright 2025 Google LLC | |
| * SPDX-License-Identifier: Apache-2.0 | |
| */ | |
| import eslint from '@eslint/js'; | |
| import tseslint from 'typescript-eslint'; | |
| import reactPlugin from 'eslint-plugin-react'; | |
| import reactHooks from 'eslint-plugin-react-hooks'; | |
| import prettierConfig from 'eslint-config-prettier'; | |
| import importPlugin from 'eslint-plugin-import'; | |
| import vitest from '@vitest/eslint-plugin'; | |
| import globals from 'globals'; | |
| import headers from 'eslint-plugin-headers'; | |
| import path from 'node:path'; | |
| import url from 'node:url'; | |
| // --- ESM way to get __dirname --- | |
| const __filename = url.fileURLToPath(import.meta.url); | |
| const __dirname = path.dirname(__filename); | |
| // --- --- | |
| // Determine the monorepo root (assuming eslint.config.js is at the root) | |
| const projectRoot = __dirname; | |
| const currentYear = new Date().getFullYear(); | |
| const commonRestrictedSyntaxRules = [ | |
| { | |
| selector: 'CallExpression[callee.name="require"]', | |
| message: 'Avoid using require(). Use ES6 imports instead.', | |
| }, | |
| { | |
| selector: 'ThrowStatement > Literal:not([value=/^\\w+Error:/])', | |
| message: | |
| 'Do not throw string literals or non-Error objects. Throw new Error("...") instead.', | |
| }, | |
| { | |
| selector: | |
| 'UnaryExpression[operator="typeof"] > MemberExpression[computed=true][property.type="Literal"]', | |
| message: | |
| 'Do not use typeof to check object properties. Define a TypeScript interface and a type guard function instead.', | |
| }, | |
| { | |
| selector: 'CatchClause > Identifier[name=/^_/]', | |
| message: | |
| 'Do not use underscored identifiers in catch blocks. If the error is unused, use "catch {}". If it is used, remove the underscore.', | |
| }, | |
| ]; | |
| export default tseslint.config( | |
| { | |
| // Global ignores | |
| ignores: [ | |
| '**/node_modules/**', | |
| 'eslint.config.js', | |
| '**/coverage/**', | |
| 'packages/**/dist/**', | |
| 'tools/**/dist/**', | |
| 'bundle/**', | |
| 'package/bundle/**', | |
| '.integration-tests/**', | |
| 'dist/**', | |
| 'evals/**', | |
| 'packages/test-utils/**', | |
| '.gemini/**', | |
| '**/*.d.ts', | |
| ], | |
| }, | |
| eslint.configs.recommended, | |
| ...tseslint.configs.recommended, | |
| reactHooks.configs['recommended-latest'], | |
| reactPlugin.configs.flat.recommended, | |
| reactPlugin.configs.flat['jsx-runtime'], // Add this if you are using React 17+ | |
| { | |
| // Settings for eslint-plugin-react | |
| settings: { | |
| react: { | |
| version: 'detect', | |
| }, | |
| }, | |
| }, | |
| { | |
| // Rules for packages/*/src and tools/caretaker-agent (TS/TSX) | |
| files: ['packages/*/src/**/*.{ts,tsx}', 'tools/caretaker-agent/**/*.{ts,tsx}'], | |
| plugins: { | |
| import: importPlugin, | |
| }, | |
| settings: { | |
| 'import/resolver': { | |
| node: true, | |
| }, | |
| }, | |
| languageOptions: { | |
| parser: tseslint.parser, | |
| parserOptions: { | |
| projectService: true, | |
| tsconfigRootDir: projectRoot, | |
| }, | |
| globals: { | |
| ...globals.node, | |
| ...globals.es2021, | |
| }, | |
| }, | |
| rules: { | |
| ...importPlugin.configs.recommended.rules, | |
| ...importPlugin.configs.typescript.rules, | |
| 'import/no-default-export': 'warn', | |
| 'import/no-unresolved': 'off', | |
| 'import/no-duplicates': 'error', | |
| // General Best Practice Rules (subset adapted for flat config) | |
| '@typescript-eslint/array-type': ['error', { default: 'array-simple' }], | |
| 'arrow-body-style': ['error', 'as-needed'], | |
| curly: ['error', 'multi-line'], | |
| eqeqeq: ['error', 'always', { null: 'ignore' }], | |
| '@typescript-eslint/consistent-type-assertions': [ | |
| 'error', | |
| { assertionStyle: 'as' }, | |
| ], | |
| '@typescript-eslint/explicit-member-accessibility': [ | |
| 'error', | |
| { accessibility: 'no-public' }, | |
| ], | |
| '@typescript-eslint/no-explicit-any': 'error', | |
| '@typescript-eslint/no-inferrable-types': [ | |
| 'error', | |
| { ignoreParameters: true, ignoreProperties: true }, | |
| ], | |
| '@typescript-eslint/consistent-type-imports': [ | |
| 'error', | |
| { disallowTypeAnnotations: false }, | |
| ], | |
| '@typescript-eslint/no-namespace': ['error', { allowDeclarations: true }], | |
| '@typescript-eslint/no-unused-vars': [ | |
| 'error', | |
| { | |
| argsIgnorePattern: '^_', | |
| varsIgnorePattern: '^_', | |
| caughtErrors: 'all', | |
| }, | |
| ], | |
| // Prevent async errors from bypassing catch handlers | |
| '@typescript-eslint/return-await': ['error', 'in-try-catch'], | |
| 'import/no-internal-modules': 'off', | |
| 'import/no-relative-packages': 'error', | |
| 'no-cond-assign': 'error', | |
| 'no-debugger': 'error', | |
| 'no-duplicate-case': 'error', | |
| 'no-restricted-syntax': ['error', ...commonRestrictedSyntaxRules], | |
| 'no-unsafe-finally': 'error', | |
| 'no-unused-expressions': 'off', // Disable base rule | |
| '@typescript-eslint/no-unused-expressions': [ | |
| // Enable TS version | |
| 'error', | |
| { allowShortCircuit: true, allowTernary: true }, | |
| ], | |
| 'no-var': 'error', | |
| 'object-shorthand': 'error', | |
| 'one-var': ['error', 'never'], | |
| 'prefer-arrow-callback': 'error', | |
| 'prefer-const': ['error', { destructuring: 'all' }], | |
| radix: 'error', | |
| 'no-console': 'error', | |
| 'default-case': 'error', | |
| '@typescript-eslint/await-thenable': ['error'], | |
| '@typescript-eslint/no-floating-promises': ['error'], | |
| '@typescript-eslint/no-unnecessary-type-assertion': ['error'], | |
| '@typescript-eslint/no-misused-spread': ['error'], | |
| 'no-restricted-imports': [ | |
| 'error', | |
| { | |
| paths: [ | |
| { | |
| name: 'node:os', | |
| importNames: ['homedir', 'tmpdir'], | |
| message: | |
| 'Please use the helpers from @google/gemini-cli-core instead of node:os homedir()/tmpdir() to ensure strict environment isolation.', | |
| }, | |
| { | |
| name: 'os', | |
| importNames: ['homedir', 'tmpdir'], | |
| message: | |
| 'Please use the helpers from @google/gemini-cli-core instead of os homedir()/tmpdir() to ensure strict environment isolation.', | |
| }, | |
| ], | |
| }, | |
| ], | |
| }, | |
| }, | |
| { | |
| // API Response Optionality enforcement for Code Assist | |
| files: ['packages/core/src/code_assist/**/*.{ts,tsx}'], | |
| rules: { | |
| 'no-restricted-syntax': [ | |
| 'error', | |
| ...commonRestrictedSyntaxRules, | |
| { | |
| selector: | |
| 'TSInterfaceDeclaration[id.name=/.+Response$/] TSPropertySignature:not([optional=true])', | |
| message: | |
| 'All fields in API response interfaces (*Response) must be marked as optional (?) to prevent developers from accidentally assuming a field will always be present based on current backend behavior.', | |
| }, | |
| { | |
| selector: | |
| 'TSTypeAliasDeclaration[id.name=/.+Response$/] TSPropertySignature:not([optional=true])', | |
| message: | |
| 'All fields in API response types (*Response) must be marked as optional (?) to prevent developers from accidentally assuming a field will always be present based on current backend behavior.', | |
| }, | |
| ], | |
| }, | |
| }, | |
| { | |
| // Rules that only apply to product code | |
| files: ['packages/*/src/**/*.{ts,tsx}'], | |
| ignores: ['**/*.test.ts', '**/*.test.tsx', 'packages/*/src/test-utils/**'], | |
| rules: { | |
| '@typescript-eslint/no-unsafe-type-assertion': 'error', | |
| '@typescript-eslint/no-unsafe-assignment': 'error', | |
| '@typescript-eslint/no-unsafe-return': 'error', | |
| 'no-restricted-syntax': [ | |
| 'error', | |
| ...commonRestrictedSyntaxRules, | |
| { | |
| selector: | |
| 'CallExpression[callee.object.name="Object"][callee.property.name="create"]', | |
| message: | |
| 'Avoid using Object.create() in product code. Use object spread {...obj}, explicit class instantiation, structuredClone(), or copy constructors instead.', | |
| }, | |
| { | |
| selector: 'Identifier[name="Reflect"]', | |
| message: | |
| 'Avoid using Reflect namespace in product code. Do not use reflection to make copies. Instead, use explicit object copying or cloning (structuredClone() for values, new instance/clone function for classes).', | |
| }, | |
| ], | |
| }, | |
| }, | |
| { | |
| // Allow os.homedir() in tests and paths.ts where it is used to implement the helper | |
| files: [ | |
| '**/*.test.ts', | |
| '**/*.test.tsx', | |
| 'packages/core/src/utils/paths.ts', | |
| 'packages/test-utils/src/**/*.ts', | |
| 'scripts/**/*.js', | |
| ], | |
| rules: { | |
| 'no-restricted-imports': 'off', | |
| }, | |
| }, | |
| { | |
| // Prevent self-imports in packages | |
| files: ['packages/core/src/**/*.{ts,tsx}'], | |
| rules: { | |
| 'no-restricted-imports': [ | |
| 'error', | |
| { | |
| name: '@google/gemini-cli-core', | |
| message: 'Please use relative imports within the @google/gemini-cli-core package.', | |
| }, | |
| ], | |
| }, | |
| }, | |
| { | |
| files: ['packages/cli/src/**/*.{ts,tsx}'], | |
| rules: { | |
| 'no-restricted-imports': [ | |
| 'error', | |
| { | |
| name: '@google/gemini-cli', | |
| message: 'Please use relative imports within the @google/gemini-cli package.', | |
| }, | |
| ], | |
| }, | |
| }, | |
| { | |
| files: ['packages/sdk/src/**/*.{ts,tsx}'], | |
| rules: { | |
| 'no-restricted-imports': [ | |
| 'error', | |
| { | |
| name: '@google/gemini-cli-sdk', | |
| message: 'Please use relative imports within the @google/gemini-cli-sdk package.', | |
| }, | |
| ], | |
| }, | |
| }, | |
| { | |
| files: ['packages/*/src/**/*.test.{ts,tsx}', 'tools/**/*.test.ts'], | |
| plugins: { | |
| vitest, | |
| }, | |
| rules: { | |
| ...vitest.configs.recommended.rules, | |
| 'vitest/expect-expect': 'off', | |
| 'vitest/no-commented-out-tests': 'off', | |
| 'no-restricted-syntax': ['error', ...commonRestrictedSyntaxRules], | |
| }, | |
| }, | |
| { | |
| files: ['./**/*.{tsx,ts,js,cjs}'], | |
| plugins: { | |
| headers, | |
| import: importPlugin, | |
| }, | |
| rules: { | |
| 'headers/header-format': [ | |
| 'error', | |
| { | |
| source: 'string', | |
| content: [ | |
| '@license', | |
| 'Copyright (year) Google LLC', | |
| 'SPDX-License-Identifier: Apache-2.0', | |
| ].join('\n'), | |
| patterns: { | |
| year: { | |
| pattern: `202[5-${currentYear.toString().slice(-1)}]`, | |
| defaultValue: currentYear.toString(), | |
| }, | |
| }, | |
| }, | |
| ], | |
| 'import/enforce-node-protocol-usage': ['error', 'always'], | |
| }, | |
| }, | |
| { | |
| files: [ | |
| './scripts/**/*.js', | |
| 'packages/*/scripts/**/*.js', | |
| 'esbuild.config.js', | |
| 'packages/core/scripts/**/*.{js,mjs}', | |
| ], | |
| languageOptions: { | |
| globals: { | |
| ...globals.node, | |
| process: 'readonly', | |
| console: 'readonly', | |
| }, | |
| }, | |
| rules: { | |
| '@typescript-eslint/no-unused-vars': [ | |
| 'error', | |
| { | |
| argsIgnorePattern: '^_', | |
| varsIgnorePattern: '^_', | |
| caughtErrors: 'all', | |
| }, | |
| ], | |
| }, | |
| }, | |
| { | |
| files: ['**/*.cjs'], | |
| languageOptions: { | |
| sourceType: 'commonjs', | |
| globals: { | |
| ...globals.node, | |
| }, | |
| }, | |
| rules: { | |
| 'no-restricted-syntax': 'off', | |
| 'no-console': 'off', | |
| 'no-empty': 'off', | |
| 'no-redeclare': 'off', | |
| '@typescript-eslint/no-require-imports': 'off', | |
| '@typescript-eslint/no-unused-vars': [ | |
| 'error', | |
| { | |
| argsIgnorePattern: '^_', | |
| varsIgnorePattern: '^_', | |
| caughtErrors: 'all', | |
| }, | |
| ], | |
| }, | |
| }, | |
| { | |
| files: ['packages/vscode-ide-companion/esbuild.js'], | |
| languageOptions: { | |
| globals: { | |
| ...globals.node, | |
| process: 'readonly', | |
| console: 'readonly', | |
| }, | |
| }, | |
| rules: { | |
| 'no-restricted-syntax': 'off', | |
| '@typescript-eslint/no-require-imports': 'off', | |
| }, | |
| }, | |
| // Examples should have access to standard globals like fetch | |
| { | |
| files: ['packages/cli/src/commands/extensions/examples/**/*.js'], | |
| languageOptions: { | |
| globals: { | |
| ...globals.node, | |
| fetch: 'readonly', | |
| }, | |
| }, | |
| }, | |
| // extra settings for scripts that we run directly with node | |
| { | |
| files: ['packages/vscode-ide-companion/scripts/**/*.js'], | |
| languageOptions: { | |
| globals: { | |
| ...globals.node, | |
| process: 'readonly', | |
| console: 'readonly', | |
| }, | |
| }, | |
| rules: { | |
| 'no-restricted-syntax': 'off', | |
| '@typescript-eslint/no-require-imports': 'off', | |
| }, | |
| }, | |
| // Allow console logging for backend services (Cloud Logging) | |
| { | |
| files: ['tools/**/*.ts', 'tools/**/*.test.ts'], | |
| rules: { | |
| 'no-console': 'off', | |
| }, | |
| }, | |
| // Prettier config must be last | |
| prettierConfig, | |
| // extra settings for scripts that we run directly with node | |
| { | |
| files: ['./integration-tests/**/*.js'], | |
| languageOptions: { | |
| globals: { | |
| ...globals.node, | |
| process: 'readonly', | |
| console: 'readonly', | |
| }, | |
| }, | |
| rules: { | |
| '@typescript-eslint/no-unused-vars': [ | |
| 'error', | |
| { | |
| argsIgnorePattern: '^_', | |
| varsIgnorePattern: '^_', | |
| caughtErrors: 'all', | |
| }, | |
| ], | |
| }, | |
| }, | |
| ); | |