svg-injector/eslint.config.mjs at master · tanem/svg-injector · GitHub

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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 [
  {
    ignores: [
      '**/compiled/',
      '**/coverage/',
      '**/dist/',
      '**/playwright-report/',
      '**/test-results/',
    ],
  },
  ...compat.extends('plugin:@typescript-eslint/recommended', 'prettier'),
  {
    plugins: {
      '@typescript-eslint': typescriptEslint,
    },

    languageOptions: {
      parser: tsParser,
      ecmaVersion: 5,
      sourceType: 'module',

      parserOptions: {
        project: 'tsconfig.eslint.json',
      },
    },

    rules: {
      // Disable explicit return types (functional code with clear inference)
      '@typescript-eslint/explicit-module-boundary-types': 'off',

      // Type Safety - align with strict TypeScript config
      '@typescript-eslint/no-explicit-any': 'error',
      '@typescript-eslint/no-unnecessary-condition': 'error',
      '@typescript-eslint/no-floating-promises': 'error',
      '@typescript-eslint/no-misused-promises': 'error',

      // Best Practices
      '@typescript-eslint/prefer-nullish-coalescing': 'error',
      '@typescript-eslint/prefer-optional-chain': 'error',
      '@typescript-eslint/consistent-type-imports': [
        'error',
        { prefer: 'type-imports', fixStyle: 'separate-type-imports' },
      ],
      '@typescript-eslint/array-type': ['error', { default: 'array-simple' }],

      // Code Quality
      '@typescript-eslint/no-unused-vars': [
        'error',
        {
          argsIgnorePattern: '^_',
          varsIgnorePattern: '^_',
          caughtErrorsIgnorePattern: '^_',
        },
      ],
      'no-console': 'error',
      eqeqeq: ['error', 'always', { null: 'ignore' }],
      'prefer-const': 'error',
    },
  },
  {
    files: ['index.js', 'scripts/**/*.js', 'examples/**/*.ts'],
    rules: {
      '@typescript-eslint/no-require-imports': 'off',
      'no-console': 'off',
    },
  },
  {
    files: ['test/**/*.ts', 'playwright.config.ts'],
    rules: {
      // Allow console in tests for debugging
      'no-console': 'off',
      // Allow non-null assertions in tests where we control the setup
      '@typescript-eslint/no-non-null-assertion': 'off',
    },
  },
]