eslint.config.mjs

import { FlatCompat } from '@eslint/eslintrc';
import js from '@eslint/js';
import typescriptEslint from '@typescript-eslint/eslint-plugin';
import tsParser from '@typescript-eslint/parser';
import simpleImportSort from 'eslint-plugin-simple-import-sort';
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: [
            '**/node_modules',
            '**/dist',
            '**/test',
            '**/*.config.js',
            '**/*.test.js',
            '**/*.test.ts',
            '**/.tsup',
        ],
    },
    ...compat.extends(
        'eslint:recommended',
        'plugin:@typescript-eslint/eslint-recommended',
        'plugin:@typescript-eslint/recommended',
        'plugin:prettier/recommended',
    ),
    {
        plugins: {
            '@typescript-eslint': typescriptEslint,
            'simple-import-sort': simpleImportSort,
        },

        languageOptions: {
            parser: tsParser,
            ecmaVersion: 2020,
            sourceType: 'module',

            parserOptions: {
                ecmaFeatures: {},
            },
        },

        rules: {
            '@typescript-eslint/no-namespace': 'off',
            '@typescript-eslint/explicit-module-boundary-types': 'off',
            '@typescript-eslint/no-empty-interface': 'off',
            '@typescript-eslint/no-non-null-assertion': 'off',
            '@typescript-eslint/ban-types': 'off',
            'no-console': 'warn',

            'prettier/prettier': [
                'error',
                {
                    endOfLine: 'auto',
                },
            ],

            'simple-import-sort/imports': [
                'warn',
                {
                    groups: [
                        [
                            '^(assert|buffer|child_process|cluster|console|constants|crypto|dgram|dns|domain|events|fs|http|https|module|net|os|path|punycode|querystring|readline|repl|stream|string_decoder|sys|timers|tls|tty|url|util|vm|zlib|freelist|v8|process|async_hooks|http2|perf_hooks)(/.*|$)',
                        ],
                        ['^@?\\w'],
                        ['^\\u0000'],
                        [
                            '^src',
                            '^\\./(?=.*/)(?!/?$)',
                            '^\\.(?!/?$)',
                            '^\\./?$',
                            '^\\.\\.(?!/?$)',
                            '^\\.\\./?$',
                        ],
                    ],
                },
            ],
        },
    },
];