Snake/eslint.config.ts at develop · NickTheDevOpsGuy/Snake · GitHub

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// eslint.config.js
import js from '@eslint/js';
import react from 'eslint-plugin-react';
import reactHooks from 'eslint-plugin-react-hooks';
import reactRefresh from 'eslint-plugin-react-refresh';
import globals from 'globals';
import tseslint from 'typescript-eslint';

export default [
  // 🧹 Ignore build + coverage folders
  { ignores: ['dist', 'coverage'] },

  // ✅ Base + TypeScript + React presets
  js.configs.recommended,
  ...tseslint.configs.recommended,
  reactHooks.configs['recommended-latest'],
  reactRefresh.configs.vite,

  // 🧩 App code (browser)
  {
    files: ['src/**/*.{ts,tsx,js,jsx}'],
    languageOptions: {
      parser: tseslint.parser,
      ecmaVersion: 'latest',
      sourceType: 'module',
      parserOptions: { ecmaFeatures: { jsx: true } },
      globals: globals.browser,
    },
    plugins: { react },
    rules: {
      // 🧠 React 17+ no longer requires importing React in JSX
      'react/react-in-jsx-scope': 'off',
      'react/prop-types': 'off',

      // 🧹 Lint polish
      '@typescript-eslint/no-unused-vars': [
        'warn',
        { argsIgnorePattern: '^_', varsIgnorePattern: '^_' },
      ],
      '@typescript-eslint/no-unused-expressions': [
        'error',
        { allowShortCircuit: true, allowTernary: true },
      ],
      'react-hooks/exhaustive-deps': 'warn',
    },
    settings: {
      react: { version: 'detect' },
    },
  },

  // 🧪 Tests (Vitest)
  {
    files: ['tests/**/*.{ts,tsx,js,jsx}', '**/*.test.{ts,tsx,js,jsx}'],
    languageOptions: {
      parser: tseslint.parser,
      ecmaVersion: 'latest',
      sourceType: 'module',
      parserOptions: { ecmaFeatures: { jsx: true } },
      globals: { ...globals.browser, ...globals.vitest },
    },
    plugins: { react },
    rules: {
      'react/react-in-jsx-scope': 'off',
    },
  },

  // ⚙️ Config + scripts (Node env)
  {
    files: [
      '*.config.{js,cjs,mjs,ts}',
      'vite.config.*',
      'vitest.config.*',
      'scripts/**',
    ],
    languageOptions: {
      parser: tseslint.parser,
      ecmaVersion: 'latest',
      sourceType: 'module',
      globals: globals.node,
    },
  },
];