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348 lines (340 loc) · 10.8 KB
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'use strict';
/* eslint-env node */
const Module = require('module');
const path = require('path');
const NodePlugin = require('./tools/node_modules/eslint-plugin-node-core');
NodePlugin.RULES_DIR = path.resolve(__dirname, 'tools', 'eslint-rules');
// The Module._findPath() monkeypatching is to make it so that ESLint will work
// if invoked by a globally-installed ESLint or ESLint installed elsewhere
// rather than the one we ship. This makes it possible for IDEs to lint files
// with our rules while people edit them.
const ModuleFindPath = Module._findPath;
const hacks = [
'eslint-plugin-node-core',
'eslint-plugin-jsdoc',
'eslint-plugin-markdown',
'@babel/eslint-parser',
'@babel/plugin-syntax-import-assertions',
];
Module._findPath = (request, paths, isMain) => {
const r = ModuleFindPath(request, paths, isMain);
if (!r && hacks.includes(request)) {
try {
return require.resolve(`./tools/node_modules/${request}`);
} catch {
return require.resolve(
`./tools/node_modules/eslint/node_modules/${request}`);
}
}
return r;
};
module.exports = {
root: true,
env: {
es2022: true,
},
extends: ['eslint:recommended', 'plugin:jsdoc/recommended'],
plugins: ['jsdoc', 'markdown', 'node-core'],
parser: '@babel/eslint-parser',
parserOptions: {
babelOptions: {
plugins: [
Module._findPath('@babel/plugin-syntax-import-assertions'),
],
},
requireConfigFile: false,
sourceType: 'script',
},
overrides: [
{
files: [
'test/es-module/test-esm-type-flag.js',
'test/es-module/test-esm-type-flag-alias.js',
'*.mjs',
'test/es-module/test-esm-example-loader.js',
],
parserOptions: { sourceType: 'module' },
},
{
files: ['**/*.md'],
processor: 'markdown/markdown',
},
{
files: ['**/*.md/*.cjs', '**/*.md/*.js'],
parserOptions: {
sourceType: 'script',
ecmaFeatures: { impliedStrict: true },
},
rules: { strict: 'off' },
},
{
files: [
'**/*.md/*.mjs',
'doc/api/esm.md/*.js',
'doc/api/packages.md/*.js',
],
parserOptions: { sourceType: 'module' },
rules: { 'no-restricted-globals': [
'error',
{
name: '__filename',
message: 'Use import.meta.url instead',
},
{
name: '__dirname',
message: 'Not available in ESM',
},
{
name: 'exports',
message: 'Not available in ESM',
},
{
name: 'module',
message: 'Not available in ESM',
},
{
name: 'require',
message: 'Use import instead',
},
{
name: 'Buffer',
message: 'Import Buffer instead of using the global',
},
{
name: 'process',
message: 'Import process instead of using the global',
},
] },
},
],
rules: {
// ESLint built-in rules
// https://eslint.org/docs/rules/
'accessor-pairs': 'error',
'array-callback-return': 'error',
'arrow-parens': 'error',
'arrow-spacing': 'error',
'block-scoped-var': 'error',
'block-spacing': 'error',
'brace-style': ['error', '1tbs', { allowSingleLine: true }],
'capitalized-comments': ['error', 'always', {
line: {
// Ignore all lines that have less characters than 20 and all lines that
// start with something that looks like a variable name or code.
ignorePattern: '.{0,20}$|[a-z]+ ?[0-9A-Z_.(/=:[#-]|std|http|ssh|ftp',
ignoreInlineComments: true,
ignoreConsecutiveComments: true,
},
block: {
ignorePattern: '.*',
},
}],
'comma-dangle': ['error', 'always-multiline'],
'comma-spacing': 'error',
'comma-style': 'error',
'computed-property-spacing': 'error',
'default-case-last': 'error',
'dot-location': ['error', 'property'],
'dot-notation': 'error',
'eol-last': 'error',
'eqeqeq': ['error', 'smart'],
'func-call-spacing': 'error',
'func-name-matching': 'error',
'func-style': ['error', 'declaration', { allowArrowFunctions: true }],
'indent': ['error', 2, {
ArrayExpression: 'first',
CallExpression: { arguments: 'first' },
FunctionDeclaration: { parameters: 'first' },
FunctionExpression: { parameters: 'first' },
MemberExpression: 'off',
ObjectExpression: 'first',
SwitchCase: 1,
}],
'key-spacing': 'error',
'keyword-spacing': 'error',
'linebreak-style': 'error',
'max-len': ['error', {
code: 120,
ignorePattern: '^// Flags:',
ignoreRegExpLiterals: true,
ignoreTemplateLiterals: true,
ignoreUrls: true,
tabWidth: 2,
}],
'new-parens': 'error',
'no-confusing-arrow': 'error',
'no-constant-condition': ['error', { checkLoops: false }],
'no-constructor-return': 'error',
'no-duplicate-imports': 'error',
'no-else-return': 'error',
'no-extra-parens': ['error', 'functions'],
'no-lonely-if': 'error',
'no-mixed-requires': 'error',
'no-multi-spaces': ['error', { ignoreEOLComments: true }],
'no-multiple-empty-lines': ['error', { max: 2, maxEOF: 0, maxBOF: 0 }],
'no-new-require': 'error',
'no-path-concat': 'error',
'no-proto': 'error',
'no-redeclare': ['error', { 'builtinGlobals': false }],
'no-restricted-modules': ['error', 'sys'],
'no-restricted-properties': [
'error',
{
object: 'assert',
property: 'deepEqual',
message: 'Use `assert.deepStrictEqual()`.',
},
{
object: 'assert',
property: 'notDeepEqual',
message: 'Use `assert.notDeepStrictEqual()`.',
},
{
object: 'assert',
property: 'equal',
message: 'Use `assert.strictEqual()` rather than `assert.equal()`.',
},
{
object: 'assert',
property: 'notEqual',
message: 'Use `assert.notStrictEqual()` rather than `assert.notEqual()`.',
},
{
property: '__defineGetter__',
message: '__defineGetter__ is deprecated.',
},
{
property: '__defineSetter__',
message: '__defineSetter__ is deprecated.',
},
],
// If this list is modified, please copy changes that should apply to ./lib
// as well to lib/.eslintrc.yaml.
'no-restricted-syntax': [
'error',
{
selector: "CallExpression[callee.name='setTimeout'][arguments.length<2]",
message: '`setTimeout()` must be invoked with at least two arguments.',
},
{
selector: "CallExpression[callee.name='setInterval'][arguments.length<2]",
message: '`setInterval()` must be invoked with at least two arguments.',
},
{
selector: 'ThrowStatement > CallExpression[callee.name=/Error$/]',
message: 'Use `new` keyword when throwing an `Error`.',
},
{
selector: "CallExpression[callee.name='isNaN']",
message: 'Use Number.isNaN() instead of the global isNaN() function.',
},
{
// TODO(@panva): move this to no-restricted-properties
// when https://github.com/eslint/eslint/issues/16412 is fixed
selector: "Identifier[name='webcrypto']",
message: 'Use `globalThis.crypto`.',
},
],
'no-return-await': 'error',
'no-self-compare': 'error',
'no-tabs': 'error',
'no-template-curly-in-string': 'error',
'no-throw-literal': 'error',
'no-trailing-spaces': 'error',
'no-undef': ['error', { typeof: true }],
'no-undef-init': 'error',
'no-unused-expressions': ['error', { allowShortCircuit: true }],
'no-unused-vars': ['error', { args: 'none', caughtErrors: 'all' }],
'no-use-before-define': ['error', {
classes: true,
functions: false,
variables: false,
}],
'no-useless-call': 'error',
'no-useless-concat': 'error',
'no-useless-constructor': 'error',
'no-useless-return': 'error',
'no-var': 'error',
'no-void': 'error',
'no-whitespace-before-property': 'error',
'object-curly-newline': 'error',
'object-curly-spacing': ['error', 'always'],
'one-var': ['error', { initialized: 'never' }],
'one-var-declaration-per-line': 'error',
'operator-linebreak': ['error', 'after'],
'padding-line-between-statements': [
'error',
{ blankLine: 'always', prev: 'function', next: 'function' },
],
'prefer-const': ['error', { ignoreReadBeforeAssign: true }],
'prefer-object-has-own': 'error',
'quotes': ['error', 'single', { avoidEscape: true }],
'quote-props': ['error', 'consistent'],
'rest-spread-spacing': 'error',
'semi': 'error',
'semi-spacing': 'error',
'space-before-blocks': ['error', 'always'],
'space-before-function-paren': ['error', {
anonymous: 'never',
named: 'never',
asyncArrow: 'always',
}],
'space-in-parens': 'error',
'space-infix-ops': 'error',
'space-unary-ops': 'error',
'spaced-comment': ['error', 'always', {
'block': { 'balanced': true },
'exceptions': ['-'],
}],
'strict': ['error', 'global'],
'symbol-description': 'error',
'template-curly-spacing': 'error',
'unicode-bom': 'error',
'valid-typeof': ['error', { requireStringLiterals: true }],
// ESLint recommended rules that we disable
'no-inner-declarations': 'off',
// JSDoc recommended rules that we disable
'jsdoc/require-jsdoc': 'off',
'jsdoc/require-param-description': 'off',
'jsdoc/newline-after-description': 'off',
'jsdoc/require-returns-description': 'off',
'jsdoc/valid-types': 'off',
'jsdoc/no-defaults': 'off',
'jsdoc/no-undefined-types': 'off',
'jsdoc/require-param': 'off',
'jsdoc/check-tag-names': 'off',
'jsdoc/require-returns': 'off',
// Custom rules from eslint-plugin-node-core
'node-core/no-unescaped-regexp-dot': 'error',
'node-core/no-duplicate-requires': 'error',
'node-core/prefer-proto': 'error',
},
globals: {
ByteLengthQueuingStrategy: 'readable',
CompressionStream: 'readable',
CountQueuingStrategy: 'readable',
CustomEvent: 'readable',
crypto: 'readable',
Crypto: 'readable',
CryptoKey: 'readable',
DecompressionStream: 'readable',
fetch: 'readable',
FormData: 'readable',
ReadableStream: 'readable',
ReadableStreamDefaultReader: 'readable',
ReadableStreamBYOBReader: 'readable',
ReadableStreamBYOBRequest: 'readable',
ReadableByteStreamController: 'readable',
ReadableStreamDefaultController: 'readable',
Response: 'readable',
TextDecoderStream: 'readable',
TextEncoderStream: 'readable',
TransformStream: 'readable',
TransformStreamDefaultController: 'readable',
ShadowRealm: 'readable',
SubtleCrypto: 'readable',
WritableStream: 'readable',
WritableStreamDefaultWriter: 'readable',
WritableStreamDefaultController: 'readable',
},
};