import js from '@eslint/js';
import tseslint from 'typescript-eslint';
export default tseslint.config(
// Base JavaScript rules
js.configs.recommended,
// TypeScript rules
...tseslint.configs.recommended,
...tseslint.configs.stylistic,
{
// Global configuration
languageOptions: {
ecmaVersion: 2022,
sourceType: 'module',
globals: {
console: 'readonly',
process: 'readonly',
Buffer: 'readonly',
__dirname: 'readonly',
__filename: 'readonly',
global: 'writable',
},
},
rules: {
// TypeScript specific rules
'@typescript-eslint/no-unused-vars': ['error', {
argsIgnorePattern: '^_',
varsIgnorePattern: '^_',
caughtErrorsIgnorePattern: '^_'
}],
'@typescript-eslint/no-explicit-any': 'warn',
'@typescript-eslint/no-inferrable-types': 'warn',
// General code quality rules
'no-console': 'off', // We use console for CLI output
'no-debugger': 'error',
'no-alert': 'error',
'no-eval': 'error',
'no-implied-eval': 'error',
'no-new-func': 'error',
'no-script-url': 'error',
// Code style rules
'prefer-const': 'error',
'no-var': 'error',
'object-shorthand': 'error',
'prefer-arrow-callback': 'error',
'prefer-template': 'error',
// Error prevention
'no-unreachable': 'error',
'no-unreachable-loop': 'error',
'no-constant-condition': 'error',
'no-duplicate-case': 'error',
'no-empty': ['error', { allowEmptyCatch: false }],
'no-ex-assign': 'error',
'no-extra-boolean-cast': 'error',
'no-func-assign': 'error',
'no-import-assign': 'error',
'no-invalid-regexp': 'error',
'no-irregular-whitespace': 'error',
'no-loss-of-precision': 'error',
'no-misleading-character-class': 'error',
'no-prototype-builtins': 'error',
'no-regex-spaces': 'error',
'no-setter-return': 'error',
'no-sparse-arrays': 'error',
'no-unexpected-multiline': 'error',
'use-isnan': 'error',
'valid-typeof': 'error',
// Best practices
'array-callback-return': 'error',
'block-scoped-var': 'error',
'consistent-return': 'warn',
'curly': ['warn', 'multi-line'],
'default-case': 'warn',
'dot-notation': 'error',
'eqeqeq': ['error', 'always'],
'guard-for-in': 'error',
'no-case-declarations': 'warn',
'no-constructor-return': 'error',
'no-else-return': 'warn',
'no-empty-function': 'warn',
'no-empty-pattern': 'error',
'no-fallthrough': 'error',
'no-floating-decimal': 'error',
'no-global-assign': 'error',
'no-implicit-coercion': 'warn',
'no-implicit-globals': 'error',
'no-lone-blocks': 'error',
'no-loop-func': 'error',
'no-multi-spaces': 'warn',
'no-new': 'error',
'no-new-wrappers': 'error',
'no-octal': 'error',
'no-octal-escape': 'error',
'no-param-reassign': 'warn',
'no-redeclare': 'error',
'no-return-assign': 'error',
'no-return-await': 'error',
'no-self-assign': 'error',
'no-self-compare': 'error',
'no-sequences': 'error',
'no-throw-literal': 'error',
'no-unmodified-loop-condition': 'error',
'no-unused-expressions': 'error',
'no-useless-call': 'error',
'no-useless-catch': 'error',
'no-useless-concat': 'error',
'no-useless-escape': 'error',
'no-useless-return': 'error',
'no-void': 'error',
'no-with': 'error',
'prefer-promise-reject-errors': 'error',
'radix': 'error',
'require-await': 'warn',
'vars-on-top': 'warn',
'wrap-iife': 'error',
'yoda': 'error',
},
},
{
// Test files configuration
files: ['**/*.test.ts', '**/*.test.js', '**/tests/**/*'],
languageOptions: {
globals: {
describe: 'readonly',
it: 'readonly',
test: 'readonly',
expect: 'readonly',
beforeAll: 'readonly',
afterAll: 'readonly',
beforeEach: 'readonly',
afterEach: 'readonly',
jest: 'readonly',
},
},
rules: {
// Relax many rules for test files
'@typescript-eslint/no-explicit-any': 'off',
'@typescript-eslint/no-unused-vars': 'off',
'no-empty-function': 'off',
'@typescript-eslint/no-empty-function': 'off',
'vars-on-top': 'off',
'require-await': 'off',
'no-multi-spaces': 'off',
'no-implicit-coercion': 'off',
'default-case': 'off',
'no-case-declarations': 'off',
'consistent-return': 'off',
},
},
{
// CommonJS files (like jest.config.cjs)
files: ['**/*.cjs'],
languageOptions: {
sourceType: 'commonjs',
globals: {
module: 'writable',
exports: 'writable',
require: 'readonly',
__dirname: 'readonly',
__filename: 'readonly',
},
},
},
{
// Ignore patterns
ignores: [
'dist/**/*',
'node_modules/**/*',
'coverage/**/*',
'*.config.js',
'*.config.ts',
],
}
);
