eslint.config.mjs•4.94 kB
import js from '@eslint/js';
import tseslint from '@typescript-eslint/eslint-plugin';
import tsparser from '@typescript-eslint/parser';
import prettierConfig from 'eslint-config-prettier';
import simpleImportSort from 'eslint-plugin-simple-import-sort';
export default [
{
ignores: [
'dist/**',
'build/**',
'node_modules/**',
'coverage/**',
'*.config.js',
'*.config.mjs',
'*.config.cjs',
'.rspack/**',
'jest.config.ts',
],
},
js.configs.recommended,
{
files: ['**/*.ts', '**/*.tsx'],
languageOptions: {
parser: tsparser,
parserOptions: {
ecmaVersion: 2022,
sourceType: 'module',
project: './tsconfig.json',
},
globals: {
console: 'readonly',
process: 'readonly',
Buffer: 'readonly',
__dirname: 'readonly',
__filename: 'readonly',
global: 'readonly',
require: 'readonly',
module: 'readonly',
exports: 'readonly',
},
},
plugins: {
'@typescript-eslint': tseslint,
'simple-import-sort': simpleImportSort,
},
rules: {
...tseslint.configs.recommended.rules,
...tseslint.configs['recommended-requiring-type-checking'].rules,
// https://eslint.org/docs/latest/rules/sort-imports
// Autofix is not working well with this rule.
// 'sort-imports': [
// 'error',
// {
// ignoreCase: false,
// ignoreDeclarationSort: false,
// ignoreMemberSort: false,
// memberSyntaxSortOrder: ['none', 'all', 'multiple', 'single'],
// allowSeparatedGroups: false,
// },
// ],
// https://github.com/lydell/eslint-plugin-simple-import-sort
'simple-import-sort/imports': 'error',
'simple-import-sort/exports': 'error',
// TypeScript specific rules
'@typescript-eslint/no-unused-vars': [
'error',
{
argsIgnorePattern: '^_',
varsIgnorePattern: '^_',
destructuredArrayIgnorePattern: '^_',
},
],
'@typescript-eslint/explicit-function-return-type': 'warn',
'@typescript-eslint/no-explicit-any': 'warn',
'@typescript-eslint/strict-boolean-expressions': 'error',
'@typescript-eslint/prefer-nullish-coalescing': 'error',
'@typescript-eslint/prefer-optional-chain': 'error',
'@typescript-eslint/no-unnecessary-condition': 'warn',
'@typescript-eslint/no-floating-promises': 'error',
'@typescript-eslint/await-thenable': 'error',
'@typescript-eslint/no-misused-promises': 'error',
'@typescript-eslint/require-await': 'error',
'@typescript-eslint/return-await': 'error',
'@typescript-eslint/no-non-null-assertion': 'warn',
'@typescript-eslint/no-var-requires': 'error',
// Complexity reduction rules
complexity: ['warn', { max: 15 }],
'max-depth': ['error', 4],
'max-lines-per-function': [
'warn',
{
max: 120,
skipBlankLines: true,
skipComments: true,
},
],
'max-params': ['warn', 5],
'max-statements': ['warn', 50],
'max-nested-callbacks': ['error', 3],
// Code quality rules
'prefer-const': 'error',
'no-var': 'error',
'object-shorthand': 'error',
'prefer-arrow-callback': 'error',
'prefer-template': 'error',
'no-duplicate-imports': 'error',
'no-debugger': 'error',
'no-unused-expressions': 'error',
// Best practices
eqeqeq: ['error', 'always'],
curly: ['error', 'all'],
'no-eval': 'error',
'no-implied-eval': 'error',
'prefer-promise-reject-errors': 'error',
},
},
{
files: ['**/*.js', '**/*.mjs', '**/*.cjs'],
languageOptions: {
ecmaVersion: 2022,
sourceType: 'module',
},
rules: {
'no-console': 'off',
'prefer-const': 'error',
'no-var': 'error',
'no-debugger': 'error',
},
},
// Prettier config must come last to override conflicting rules
prettierConfig,
{
files: ['**/*.test.ts', '**/jest.config.ts', '**/test/**/*.ts'],
languageOptions: {
globals: {
describe: 'readonly',
it: 'readonly',
expect: 'readonly',
test: 'readonly',
beforeEach: 'readonly',
afterEach: 'readonly',
beforeAll: 'readonly',
afterAll: 'readonly',
jest: 'readonly',
},
},
rules: {
'@typescript-eslint/no-require-imports': 'off',
'@typescript-eslint/no-var-requires': 'off',
'@typescript-eslint/no-unsafe-call': 'off',
'@typescript-eslint/no-unsafe-member-access': 'off',
'@typescript-eslint/no-unsafe-assignment': 'off',
'@typescript-eslint/no-unsafe-argument': 'off',
'@typescript-eslint/no-unsafe-return': 'off',
'@typescript-eslint/unbound-method': 'off',
},
},
];