// eslint-disable-next-line @typescript-eslint/no-var-requires const { builtinModules } = require('module'); /** @type {import("@types/eslint").Linter.Config} */ module.exports = { extends: [ 'plugin:@typescript-eslint/recommended-type-checked', 'plugin:@typescript-eslint/stylistic-type-checked', 'prettier', 'plugin:regexp/recommended', ], parser: '@typescript-eslint/parser', parserOptions: { project: ['./packages/*/tsconfig.json', './tsconfig.eslint.json'], tsconfigRootDir: __dirname, }, plugins: ['@typescript-eslint', 'prettier', 'no-only-tests', 'regexp'], rules: { // These off/configured-differently-by-default rules fit well for us '@typescript-eslint/switch-exhaustiveness-check': 'error', '@typescript-eslint/array-type': ['error', { default: 'array-simple' }], '@typescript-eslint/no-unused-vars': [ 'warn', { argsIgnorePattern: '^_', varsIgnorePattern: '^_', caughtErrorsIgnorePattern: '^_', ignoreRestSiblings: true, }, ], 'no-only-tests/no-only-tests': 'error', '@typescript-eslint/no-shadow': ['error'], 'no-console': 'warn', // Todo: do we want these? '@typescript-eslint/array-type': 'off', '@typescript-eslint/ban-ts-comment': 'off', '@typescript-eslint/class-literal-property-style': 'off', '@typescript-eslint/consistent-indexed-object-style': 'off', '@typescript-eslint/consistent-type-definitions': 'off', '@typescript-eslint/dot-notation': 'off', '@typescript-eslint/no-base-to-string': 'off', '@typescript-eslint/no-empty-function': 'off', '@typescript-eslint/no-floating-promises': 'off', '@typescript-eslint/no-misused-promises': 'off', '@typescript-eslint/no-redundant-type-constituents': 'off', '@typescript-eslint/no-this-alias': 'off', '@typescript-eslint/no-unsafe-argument': 'off', '@typescript-eslint/no-unsafe-assignment': 'off', '@typescript-eslint/no-unsafe-call': 'off', '@typescript-eslint/no-unsafe-member-access': 'off', '@typescript-eslint/no-unsafe-return': 'off', '@typescript-eslint/prefer-nullish-coalescing': 'off', '@typescript-eslint/prefer-optional-chain': 'off', '@typescript-eslint/prefer-string-starts-ends-with': 'off', '@typescript-eslint/require-await': 'off', '@typescript-eslint/restrict-plus-operands': 'off', '@typescript-eslint/restrict-template-expressions': 'off', '@typescript-eslint/sort-type-constituents': 'off', '@typescript-eslint/unbound-method': 'off', '@typescript-eslint/no-explicit-any': 'off', // Enforce separate type imports for type-only imports to avoid bundling unneeded code '@typescript-eslint/consistent-type-imports': [ 'error', { prefer: 'type-imports', fixStyle: 'separate-type-imports', disallowTypeAnnotations: false, }, ], // These rules enabled by the preset configs don't work well for us '@typescript-eslint/await-thenable': 'off', 'prefer-const': 'off', // In some cases, using explicit letter-casing is more performant than the `i` flag 'regexp/use-ignore-case': 'off', }, overrides: [ { // Ensure Node builtins aren't included in Astro's server runtime files: ['packages/astro/src/runtime/**/*.ts'], rules: { 'no-restricted-imports': [ 'error', { paths: [...builtinModules], patterns: ['node:*'], }, ], }, }, { files: ['packages/astro/src/runtime/client/**/*.ts'], env: { browser: true, }, }, { files: ['packages/**/test/*.js', 'packages/**/*.js'], env: { mocha: true, }, globals: { globalThis: false, // false means read-only }, rules: { 'no-console': 'off', }, }, { files: ['packages/integrations/**/*.ts'], rules: { 'no-console': ['error', { allow: ['warn', 'error', 'info', 'debug'] }], }, }, { files: ['benchmark/**/*.js'], rules: { '@typescript-eslint/no-unused-vars': 'off', 'no-console': 'off', }, }, { files: ['packages/astro/src/core/errors/errors-data.ts'], rules: { // This file is used for docs generation, as such the code need to be in a certain format, we can somewhat ensure this with these rules 'object-shorthand': ['error', 'methods', { avoidExplicitReturnArrows: true }], 'arrow-body-style': ['error', 'never'], }, }, ], };