sonarqube-cli/eslint.config.js at master · SonarSource/sonarqube-cli · GitHub

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// @ts-check
import tseslint from 'typescript-eslint';
import prettierConfig from 'eslint-config-prettier';
import headersPlugin from 'eslint-plugin-headers';

export default tseslint.config(
  // Global ignores
  {
    ignores: ['dist/**', 'node_modules/**', 'coverage/**', 'scripts/**', 'plop-templates/**'],
  },

  // License header enforcement
  {
    files: ['src/**/*.ts'],
    plugins: { headers: headersPlugin },
    rules: {
      'headers/header-format': ['error', {
        source: 'file',
        path: 'LICENSE',
        blockPrefix: '\n'
      }],
    },
  },
  // Base TypeScript config for source files
  {
    files: ['src/**/*.ts'],
    extends: [
      ...tseslint.configs.strictTypeChecked,
      ...tseslint.configs.stylisticTypeChecked,
    ],
    languageOptions: {
      parserOptions: {
        project: './tsconfig.json',
        tsconfigRootDir: import.meta.dirname,
      },
    },
    rules: {
      // TypeScript-specific overrides
      '@typescript-eslint/no-explicit-any': 'warn',
      '@typescript-eslint/no-floating-promises': 'error',
      '@typescript-eslint/no-misused-promises': 'error',
      '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_', varsIgnorePattern: '^_' }],
      '@typescript-eslint/consistent-type-imports': ['error', { prefer: 'type-imports', fixStyle: 'inline-type-imports' }],
      '@typescript-eslint/consistent-type-definitions': 'off',
      '@typescript-eslint/no-non-null-assertion': 'warn',
      '@typescript-eslint/switch-exhaustiveness-check': 'error',
      '@typescript-eslint/prefer-nullish-coalescing': 'off',
      '@typescript-eslint/array-type': 'off',
      // Allow numbers and booleans in template literals — very common in CLI output
      '@typescript-eslint/restrict-template-expressions': ['error', { allowNumber: true, allowBoolean: true }],
      // Downgrade unsafe rules to warn — CLI code often interacts with loosely typed APIs
      '@typescript-eslint/no-unsafe-assignment': 'warn',
      '@typescript-eslint/no-unsafe-member-access': 'warn',
      '@typescript-eslint/no-unsafe-argument': 'warn',
      '@typescript-eslint/no-unsafe-call': 'warn',
      '@typescript-eslint/no-unsafe-return': 'warn',
      '@typescript-eslint/no-confusing-void-expression': 'warn',

      // General best practices
      'no-console': 'warn',
    },
  },

  // Relaxed rules for test files
  {
    files: ['tests/**/*.ts'],
    extends: [
      ...tseslint.configs.recommendedTypeChecked,
    ],
    languageOptions: {
      parserOptions: {
        project: './tsconfig.test.json',
        tsconfigRootDir: import.meta.dirname,
      },
    },
    rules: {
      '@typescript-eslint/no-explicit-any': 'off',
      '@typescript-eslint/no-unsafe-assignment': 'off',
      '@typescript-eslint/no-unsafe-call': 'off',
      '@typescript-eslint/no-unsafe-member-access': 'off',
      '@typescript-eslint/no-floating-promises': 'error',
      '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_', varsIgnorePattern: '^_' }],
      'no-console': 'off',
    },
  },

  // Prettier must be last — disables all formatting rules
  prettierConfig,
);