eslint.config.mjs

import typescriptEslint from '@typescript-eslint/eslint-plugin';
import tsParser from '@typescript-eslint/parser';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import js from '@eslint/js';
import { FlatCompat } from '@eslint/eslintrc';

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 [
  ...compat
    .extends('eslint:recommended', 'plugin:@typescript-eslint/recommended')
    .map((config) => ({
      ...config,
      files: ['**/*.ts'],
    })),
  {
    files: ['**/*.ts'],

    plugins: {
      '@typescript-eslint': typescriptEslint,
    },

    languageOptions: {
      parser: tsParser,
    },

    rules: {
      '@typescript-eslint/consistent-type-imports': 'error',
      '@typescript-eslint/no-explicit-any': 'off',
      '@typescript-eslint/no-non-null-assertion': 'off',

      '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],

      'no-constant-condition': 'off',
      'no-unused-labels': 'off',
      'prefer-rest-params': 'off',
      'prefer-const': ['error', { destructuring: 'all' }],
    },
  },
  {
    files: ['/Users/jridgewell/src/jridgewell/sourcemaps/test/**/*.ts'],

    rules: {
      '@typescript-eslint/no-empty-function': 'off',
      '@typescript-eslint/no-explicit-any': 'off',
    },
  },
];