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MLAB-677: Update modules

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node_modules/@eslint/eslintrc/README.md deleted 100644 → 0
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# ESLintRC Library
This repository contains the legacy ESLintRC configuration file format for ESLint.
**Note:** This package is not intended for use outside of the ESLint ecosystem. It is ESLint-specific and not intended for use in other programs.
## Installation
You can install the package as follows:
```
npm install @eslint/eslintrc --save-dev
# or
yarn add @eslint/eslintrc -D
```
## Future Usage
**Note:** This package is not intended for public use at this time. The following is an example of how it will be used in the future.
The primary class in this package is `FlatCompat`, which is a utility to translate ESLintRC-style configs into flat configs. Here's how you use it inside of your `eslint.config.js` file:
```js
import { FlatCompat } from "@eslint/eslintrc";
const compat = new FlatCompat();
export default [
// mimic ESLintRC-style extends
compat.extends("standard", "example"),
// mimic environments
compat.env({
es2020: true,
node: true
}),
// mimic plugins
compat.plugins("airbnb", "react"),
// translate an entire config
compat.config({
plugins: ["airbnb", "react"],
extends: "standard",
env: {
es2020: true,
node: true
},
rules: {
semi: "error"
}
})
];
```
## License
MIT License
node_modules/@eslint/eslintrc/conf/config-schema.js deleted 100644 → 0
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/**
* @fileoverview Defines a schema for configs.
* @author Sylvan Mably
*/
"use strict";
const baseConfigProperties = {
$schema: { type: "string" },
env: { type: "object" },
extends: { $ref: "#/definitions/stringOrStrings" },
globals: { type: "object" },
overrides: {
type: "array",
items: { $ref: "#/definitions/overrideConfig" },
additionalItems: false
},
parser: { type: ["string", "null"] },
parserOptions: { type: "object" },
plugins: { type: "array" },
processor: { type: "string" },
rules: { type: "object" },
settings: { type: "object" },
noInlineConfig: { type: "boolean" },
reportUnusedDisableDirectives: { type: "boolean" },
ecmaFeatures: { type: "object" } // deprecated; logs a warning when used
};
const configSchema = {
definitions: {
stringOrStrings: {
oneOf: [
{ type: "string" },
{
type: "array",
items: { type: "string" },
additionalItems: false
}
]
},
stringOrStringsRequired: {
oneOf: [
{ type: "string" },
{
type: "array",
items: { type: "string" },
additionalItems: false,
minItems: 1
}
]
},
// Config at top-level.
objectConfig: {
type: "object",
properties: {
root: { type: "boolean" },
ignorePatterns: { $ref: "#/definitions/stringOrStrings" },
...baseConfigProperties
},
additionalProperties: false
},
// Config in `overrides`.
overrideConfig: {
type: "object",
properties: {
excludedFiles: { $ref: "#/definitions/stringOrStrings" },
files: { $ref: "#/definitions/stringOrStringsRequired" },
...baseConfigProperties
},
required: ["files"],
additionalProperties: false
}
},
$ref: "#/definitions/objectConfig"
};
module.exports = configSchema;
node_modules/@eslint/eslintrc/conf/environments.js deleted 100644 → 0
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/**
* @fileoverview Defines environment settings and globals.
* @author Elan Shanker
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const globals = require("globals");
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
/**
* Get the object that has difference.
* @param {Record<string,boolean>} current The newer object.
* @param {Record<string,boolean>} prev The older object.
* @returns {Record<string,boolean>} The difference object.
*/
function getDiff(current, prev) {
const retv = {};
for (const [key, value] of Object.entries(current)) {
if (!Object.hasOwnProperty.call(prev, key)) {
retv[key] = value;
}
}
return retv;
}
const newGlobals2015 = getDiff(globals.es2015, globals.es5); // 19 variables such as Promise, Map, ...
const newGlobals2017 = {
Atomics: false,
SharedArrayBuffer: false
};
const newGlobals2020 = {
BigInt: false,
BigInt64Array: false,
BigUint64Array: false,
globalThis: false
};
const newGlobals2021 = {
AggregateError: false,
FinalizationRegistry: false,
WeakRef: false
};
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
/** @type {Map<string, import("../lib/shared/types").Environment>} */
module.exports = new Map(Object.entries({
// Language
builtin: {
globals: globals.es5
},
es6: {
globals: newGlobals2015,
parserOptions: {
ecmaVersion: 6
}
},
es2015: {
globals: newGlobals2015,
parserOptions: {
ecmaVersion: 6
}
},
es2017: {
globals: { ...newGlobals2015, ...newGlobals2017 },
parserOptions: {
ecmaVersion: 8
}
},
es2020: {
globals: { ...newGlobals2015, ...newGlobals2017, ...newGlobals2020 },
parserOptions: {
ecmaVersion: 11
}
},
es2021: {
globals: { ...newGlobals2015, ...newGlobals2017, ...newGlobals2020, ...newGlobals2021 },
parserOptions: {
ecmaVersion: 12
}
},
// Platforms
browser: {
globals: globals.browser
},
node: {
globals: globals.node,
parserOptions: {
ecmaFeatures: {
globalReturn: true
}
}
},
"shared-node-browser": {
globals: globals["shared-node-browser"]
},
worker: {
globals: globals.worker
},
serviceworker: {
globals: globals.serviceworker
},
// Frameworks
commonjs: {
globals: globals.commonjs,
parserOptions: {
ecmaFeatures: {
globalReturn: true
}
}
},
amd: {
globals: globals.amd
},
mocha: {
globals: globals.mocha
},
jasmine: {
globals: globals.jasmine
},
jest: {
globals: globals.jest
},
phantomjs: {
globals: globals.phantomjs
},
jquery: {
globals: globals.jquery
},
qunit: {
globals: globals.qunit
},
prototypejs: {
globals: globals.prototypejs
},
shelljs: {
globals: globals.shelljs
},
meteor: {
globals: globals.meteor
},
mongo: {
globals: globals.mongo
},
protractor: {
globals: globals.protractor
},
applescript: {
globals: globals.applescript
},
nashorn: {
globals: globals.nashorn
},
atomtest: {
globals: globals.atomtest
},
embertest: {
globals: globals.embertest
},
webextensions: {
globals: globals.webextensions
},
greasemonkey: {
globals: globals.greasemonkey
}
}));
node_modules/@eslint/eslintrc/conf/eslint-all.js deleted 100644 → 0
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/**
* @fileoverview Stub eslint:all config
* @author Nicholas C. Zakas
*/
"use strict";
module.exports = {
settings: {
"eslint:all": true
}
};
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/**
* @fileoverview Stub eslint:recommended config
* @author Nicholas C. Zakas
*/
"use strict";
module.exports = {
settings: {
"eslint:recommended": true
}
};
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/**
* @fileoverview `CascadingConfigArrayFactory` class.
*
* `CascadingConfigArrayFactory` class has a responsibility:
*
* 1. Handles cascading of config files.
*
* It provides two methods:
*
* - `getConfigArrayForFile(filePath)`
* Get the corresponded configuration of a given file. This method doesn't
* throw even if the given file didn't exist.
* - `clearCache()`
* Clear the internal cache. You have to call this method when
* `additionalPluginPool` was updated if `baseConfig` or `cliConfig` depends
* on the additional plugins. (`CLIEngine#addPlugin()` method calls this.)
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const os = require("os");
const path = require("path");
const ConfigValidator = require("./shared/config-validator");
const { emitDeprecationWarning } = require("./shared/deprecation-warnings");
const { ConfigArrayFactory } = require("./config-array-factory");
const { ConfigArray, ConfigDependency, IgnorePattern } = require("./config-array");
const debug = require("debug")("eslintrc:cascading-config-array-factory");
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
// Define types for VSCode IntelliSense.
/** @typedef {import("./shared/types").ConfigData} ConfigData */
/** @typedef {import("./shared/types").Parser} Parser */
/** @typedef {import("./shared/types").Plugin} Plugin */
/** @typedef {import("./shared/types").Rule} Rule */
/** @typedef {ReturnType<ConfigArrayFactory["create"]>} ConfigArray */
/**
* @typedef {Object} CascadingConfigArrayFactoryOptions
* @property {Map<string,Plugin>} [additionalPluginPool] The map for additional plugins.
* @property {ConfigData} [baseConfig] The config by `baseConfig` option.
* @property {ConfigData} [cliConfig] The config by CLI options (`--env`, `--global`, `--ignore-pattern`, `--parser`, `--parser-options`, `--plugin`, and `--rule`). CLI options overwrite the setting in config files.
* @property {string} [cwd] The base directory to start lookup.
* @property {string} [ignorePath] The path to the alternative file of `.eslintignore`.
* @property {string[]} [rulePaths] The value of `--rulesdir` option.
* @property {string} [specificConfigPath] The value of `--config` option.
* @property {boolean} [useEslintrc] if `false` then it doesn't load config files.
* @property {Function} loadRules The function to use to load rules.
* @property {Map<string,Rule>} builtInRules The rules that are built in to ESLint.
* @property {Object} [resolver=ModuleResolver] The module resolver object.
* @property {string} eslintAllPath The path to the definitions for eslint:all.
* @property {string} eslintRecommendedPath The path to the definitions for eslint:recommended.
*/
/**
* @typedef {Object} CascadingConfigArrayFactoryInternalSlots
* @property {ConfigArray} baseConfigArray The config array of `baseConfig` option.
* @property {ConfigData} baseConfigData The config data of `baseConfig` option. This is used to reset `baseConfigArray`.
* @property {ConfigArray} cliConfigArray The config array of CLI options.
* @property {ConfigData} cliConfigData The config data of CLI options. This is used to reset `cliConfigArray`.
* @property {ConfigArrayFactory} configArrayFactory The factory for config arrays.
* @property {Map<string, ConfigArray>} configCache The cache from directory paths to config arrays.
* @property {string} cwd The base directory to start lookup.
* @property {WeakMap<ConfigArray, ConfigArray>} finalizeCache The cache from config arrays to finalized config arrays.
* @property {string} [ignorePath] The path to the alternative file of `.eslintignore`.
* @property {string[]|null} rulePaths The value of `--rulesdir` option. This is used to reset `baseConfigArray`.
* @property {string|null} specificConfigPath The value of `--config` option. This is used to reset `cliConfigArray`.
* @property {boolean} useEslintrc if `false` then it doesn't load config files.
* @property {Function} loadRules The function to use to load rules.
* @property {Map<string,Rule>} builtInRules The rules that are built in to ESLint.
* @property {Object} [resolver=ModuleResolver] The module resolver object.
* @property {string} eslintAllPath The path to the definitions for eslint:all.
* @property {string} eslintRecommendedPath The path to the definitions for eslint:recommended.
*/
/** @type {WeakMap<CascadingConfigArrayFactory, CascadingConfigArrayFactoryInternalSlots>} */
const internalSlotsMap = new WeakMap();
/**
* Create the config array from `baseConfig` and `rulePaths`.
* @param {CascadingConfigArrayFactoryInternalSlots} slots The slots.
* @returns {ConfigArray} The config array of the base configs.
*/
function createBaseConfigArray({
configArrayFactory,
baseConfigData,
rulePaths,
cwd,
loadRules
}) {
const baseConfigArray = configArrayFactory.create(
baseConfigData,
{ name: "BaseConfig" }
);
/*
* Create the config array element for the default ignore patterns.
* This element has `ignorePattern` property that ignores the default
* patterns in the current working directory.
*/
baseConfigArray.unshift(configArrayFactory.create(
{ ignorePatterns: IgnorePattern.DefaultPatterns },
{ name: "DefaultIgnorePattern" }
)[0]);
/*
* Load rules `--rulesdir` option as a pseudo plugin.
* Use a pseudo plugin to define rules of `--rulesdir`, so we can validate
* the rule's options with only information in the config array.
*/
if (rulePaths && rulePaths.length > 0) {
baseConfigArray.push({
type: "config",
name: "--rulesdir",
filePath: "",
plugins: {
"": new ConfigDependency({
definition: {
rules: rulePaths.reduce(
(map, rulesPath) => Object.assign(
map,
loadRules(rulesPath, cwd)
),
{}
)
},
filePath: "",
id: "",
importerName: "--rulesdir",
importerPath: ""
})
}
});
}
return baseConfigArray;
}
/**
* Create the config array from CLI options.
* @param {CascadingConfigArrayFactoryInternalSlots} slots The slots.
* @returns {ConfigArray} The config array of the base configs.
*/
function createCLIConfigArray({
cliConfigData,
configArrayFactory,
cwd,
ignorePath,
specificConfigPath
}) {
const cliConfigArray = configArrayFactory.create(
cliConfigData,
{ name: "CLIOptions" }
);
cliConfigArray.unshift(
...(ignorePath
? configArrayFactory.loadESLintIgnore(ignorePath)
: configArrayFactory.loadDefaultESLintIgnore())
);
if (specificConfigPath) {
cliConfigArray.unshift(
...configArrayFactory.loadFile(
specificConfigPath,
{ name: "--config", basePath: cwd }
)
);
}
return cliConfigArray;
}
/**
* The error type when there are files matched by a glob, but all of them have been ignored.
*/
class ConfigurationNotFoundError extends Error {
// eslint-disable-next-line jsdoc/require-description
/**
* @param {string} directoryPath The directory path.
*/
constructor(directoryPath) {
super(`No ESLint configuration found in ${directoryPath}.`);
this.messageTemplate = "no-config-found";
this.messageData = { directoryPath };
}
}
/**
* This class provides the functionality that enumerates every file which is
* matched by given glob patterns and that configuration.
*/
class CascadingConfigArrayFactory {
/**
* Initialize this enumerator.
* @param {CascadingConfigArrayFactoryOptions} options The options.
*/
constructor({
additionalPluginPool = new Map(),
baseConfig: baseConfigData = null,
cliConfig: cliConfigData = null,
cwd = process.cwd(),
ignorePath,
resolvePluginsRelativeTo,
rulePaths = [],
specificConfigPath = null,
useEslintrc = true,
builtInRules = new Map(),
loadRules,
resolver,
eslintRecommendedPath,
eslintAllPath
} = {}) {
const configArrayFactory = new ConfigArrayFactory({
additionalPluginPool,
cwd,
resolvePluginsRelativeTo,
builtInRules,
resolver,
eslintRecommendedPath,
eslintAllPath
});
internalSlotsMap.set(this, {
baseConfigArray: createBaseConfigArray({
baseConfigData,
configArrayFactory,
cwd,
rulePaths,
loadRules,
resolver
}),
baseConfigData,
cliConfigArray: createCLIConfigArray({
cliConfigData,
configArrayFactory,
cwd,
ignorePath,
specificConfigPath
}),
cliConfigData,
configArrayFactory,
configCache: new Map(),
cwd,
finalizeCache: new WeakMap(),
ignorePath,
rulePaths,
specificConfigPath,
useEslintrc,
builtInRules,
loadRules
});
}
/**
* The path to the current working directory.
* This is used by tests.
* @type {string}
*/
get cwd() {
const { cwd } = internalSlotsMap.get(this);
return cwd;
}
/**
* Get the config array of a given file.
* If `filePath` was not given, it returns the config which contains only
* `baseConfigData` and `cliConfigData`.
* @param {string} [filePath] The file path to a file.
* @param {Object} [options] The options.
* @param {boolean} [options.ignoreNotFoundError] If `true` then it doesn't throw `ConfigurationNotFoundError`.
* @returns {ConfigArray} The config array of the file.
*/
getConfigArrayForFile(filePath, { ignoreNotFoundError = false } = {}) {
const {
baseConfigArray,
cliConfigArray,
cwd
} = internalSlotsMap.get(this);
if (!filePath) {
return new ConfigArray(...baseConfigArray, ...cliConfigArray);
}
const directoryPath = path.dirname(path.resolve(cwd, filePath));
debug(`Load config files for ${directoryPath}.`);
return this._finalizeConfigArray(
this._loadConfigInAncestors(directoryPath),
directoryPath,
ignoreNotFoundError
);
}
/**
* Set the config data to override all configs.
* Require to call `clearCache()` method after this method is called.
* @param {ConfigData} configData The config data to override all configs.
* @returns {void}
*/
setOverrideConfig(configData) {
const slots = internalSlotsMap.get(this);
slots.cliConfigData = configData;
}
/**
* Clear config cache.
* @returns {void}
*/
clearCache() {
const slots = internalSlotsMap.get(this);
slots.baseConfigArray = createBaseConfigArray(slots);
slots.cliConfigArray = createCLIConfigArray(slots);
slots.configCache.clear();
}
/**
* Load and normalize config files from the ancestor directories.
* @param {string} directoryPath The path to a leaf directory.
* @param {boolean} configsExistInSubdirs `true` if configurations exist in subdirectories.
* @returns {ConfigArray} The loaded config.
* @private
*/
_loadConfigInAncestors(directoryPath, configsExistInSubdirs = false) {
const {
baseConfigArray,
configArrayFactory,
configCache,
cwd,
useEslintrc
} = internalSlotsMap.get(this);
if (!useEslintrc) {
return baseConfigArray;
}
let configArray = configCache.get(directoryPath);
// Hit cache.
if (configArray) {
debug(`Cache hit: ${directoryPath}.`);
return configArray;
}
debug(`No cache found: ${directoryPath}.`);
const homePath = os.homedir();
// Consider this is root.
if (directoryPath === homePath && cwd !== homePath) {
debug("Stop traversing because of considered root.");
if (configsExistInSubdirs) {
const filePath = ConfigArrayFactory.getPathToConfigFileInDirectory(directoryPath);
if (filePath) {
emitDeprecationWarning(
filePath,
"ESLINT_PERSONAL_CONFIG_SUPPRESS"
);
}
}
return this._cacheConfig(directoryPath, baseConfigArray);
}
// Load the config on this directory.
try {
configArray = configArrayFactory.loadInDirectory(directoryPath);
} catch (error) {
/* istanbul ignore next */
if (error.code === "EACCES") {
debug("Stop traversing because of 'EACCES' error.");
return this._cacheConfig(directoryPath, baseConfigArray);
}
throw error;
}
if (configArray.length > 0 && configArray.isRoot()) {
debug("Stop traversing because of 'root:true'.");
configArray.unshift(...baseConfigArray);
return this._cacheConfig(directoryPath, configArray);
}
// Load from the ancestors and merge it.
const parentPath = path.dirname(directoryPath);
const parentConfigArray = parentPath && parentPath !== directoryPath
? this._loadConfigInAncestors(
parentPath,
configsExistInSubdirs || configArray.length > 0
)
: baseConfigArray;
if (configArray.length > 0) {
configArray.unshift(...parentConfigArray);
} else {
configArray = parentConfigArray;
}
// Cache and return.
return this._cacheConfig(directoryPath, configArray);
}
/**
* Freeze and cache a given config.
* @param {string} directoryPath The path to a directory as a cache key.
* @param {ConfigArray} configArray The config array as a cache value.
* @returns {ConfigArray} The `configArray` (frozen).
*/
_cacheConfig(directoryPath, configArray) {
const { configCache } = internalSlotsMap.get(this);
Object.freeze(configArray);
configCache.set(directoryPath, configArray);
return configArray;
}
/**
* Finalize a given config array.
* Concatenate `--config` and other CLI options.
* @param {ConfigArray} configArray The parent config array.
* @param {string} directoryPath The path to the leaf directory to find config files.
* @param {boolean} ignoreNotFoundError If `true` then it doesn't throw `ConfigurationNotFoundError`.
* @returns {ConfigArray} The loaded config.
* @private
*/
_finalizeConfigArray(configArray, directoryPath, ignoreNotFoundError) {
const {
cliConfigArray,
configArrayFactory,
finalizeCache,
useEslintrc,
builtInRules
} = internalSlotsMap.get(this);
let finalConfigArray = finalizeCache.get(configArray);
if (!finalConfigArray) {
finalConfigArray = configArray;
// Load the personal config if there are no regular config files.
if (
useEslintrc &&
configArray.every(c => !c.filePath) &&
cliConfigArray.every(c => !c.filePath) // `--config` option can be a file.
) {
const homePath = os.homedir();
debug("Loading the config file of the home directory:", homePath);
const personalConfigArray = configArrayFactory.loadInDirectory(
homePath,
{ name: "PersonalConfig" }
);
if (
personalConfigArray.length > 0 &&
!directoryPath.startsWith(homePath)
) {
const lastElement =
personalConfigArray[personalConfigArray.length - 1];
emitDeprecationWarning(
lastElement.filePath,
"ESLINT_PERSONAL_CONFIG_LOAD"
);
}
finalConfigArray = finalConfigArray.concat(personalConfigArray);
}
// Apply CLI options.
if (cliConfigArray.length > 0) {
finalConfigArray = finalConfigArray.concat(cliConfigArray);
}
// Validate rule settings and environments.
const validator = new ConfigValidator({
builtInRules
});
validator.validateConfigArray(finalConfigArray);
// Cache it.
Object.freeze(finalConfigArray);
finalizeCache.set(configArray, finalConfigArray);
debug(
"Configuration was determined: %o on %s",
finalConfigArray,
directoryPath
);
}
// At least one element (the default ignore patterns) exists.
if (!ignoreNotFoundError && useEslintrc && finalConfigArray.length <= 1) {
throw new ConfigurationNotFoundError(directoryPath);
}
return finalConfigArray;
}
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
module.exports = { CascadingConfigArrayFactory };
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/**
* @fileoverview The factory of `ConfigArray` objects.
*
* This class provides methods to create `ConfigArray` instance.
*
* - `create(configData, options)`
* Create a `ConfigArray` instance from a config data. This is to handle CLI
* options except `--config`.
* - `loadFile(filePath, options)`
* Create a `ConfigArray` instance from a config file. This is to handle
* `--config` option. If the file was not found, throws the following error:
* - If the filename was `*.js`, a `MODULE_NOT_FOUND` error.
* - If the filename was `package.json`, an IO error or an
* `ESLINT_CONFIG_FIELD_NOT_FOUND` error.
* - Otherwise, an IO error such as `ENOENT`.
* - `loadInDirectory(directoryPath, options)`
* Create a `ConfigArray` instance from a config file which is on a given
* directory. This tries to load `.eslintrc.*` or `package.json`. If not
* found, returns an empty `ConfigArray`.
* - `loadESLintIgnore(filePath)`
* Create a `ConfigArray` instance from a config file that is `.eslintignore`
* format. This is to handle `--ignore-path` option.
* - `loadDefaultESLintIgnore()`
* Create a `ConfigArray` instance from `.eslintignore` or `package.json` in
* the current working directory.
*
* `ConfigArrayFactory` class has the responsibility that loads configuration
* files, including loading `extends`, `parser`, and `plugins`. The created
* `ConfigArray` instance has the loaded `extends`, `parser`, and `plugins`.
*
* But this class doesn't handle cascading. `CascadingConfigArrayFactory` class
* handles cascading and hierarchy.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const fs = require("fs");
const path = require("path");
const importFresh = require("import-fresh");
const stripComments = require("strip-json-comments");
const ConfigValidator = require("./shared/config-validator");
const naming = require("./shared/naming");
const ModuleResolver = require("./shared/relative-module-resolver");
const {
ConfigArray,
ConfigDependency,
IgnorePattern,
OverrideTester
} = require("./config-array");
const debug = require("debug")("eslintrc:config-array-factory");
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
const configFilenames = [
".eslintrc.js",
".eslintrc.cjs",
".eslintrc.yaml",
".eslintrc.yml",
".eslintrc.json",
".eslintrc",
"package.json"
];
// Define types for VSCode IntelliSense.
/** @typedef {import("./shared/types").ConfigData} ConfigData */
/** @typedef {import("./shared/types").OverrideConfigData} OverrideConfigData */
/** @typedef {import("./shared/types").Parser} Parser */
/** @typedef {import("./shared/types").Plugin} Plugin */
/** @typedef {import("./shared/types").Rule} Rule */
/** @typedef {import("./config-array/config-dependency").DependentParser} DependentParser */
/** @typedef {import("./config-array/config-dependency").DependentPlugin} DependentPlugin */
/** @typedef {ConfigArray[0]} ConfigArrayElement */
/**
* @typedef {Object} ConfigArrayFactoryOptions
* @property {Map<string,Plugin>} [additionalPluginPool] The map for additional plugins.
* @property {string} [cwd] The path to the current working directory.
* @property {string} [resolvePluginsRelativeTo] A path to the directory that plugins should be resolved from. Defaults to `cwd`.
* @property {Map<string,Rule>} builtInRules The rules that are built in to ESLint.
* @property {Object} [resolver=ModuleResolver] The module resolver object.
* @property {string} eslintAllPath The path to the definitions for eslint:all.
* @property {string} eslintRecommendedPath The path to the definitions for eslint:recommended.
*/
/**
* @typedef {Object} ConfigArrayFactoryInternalSlots
* @property {Map<string,Plugin>} additionalPluginPool The map for additional plugins.
* @property {string} cwd The path to the current working directory.
* @property {string | undefined} resolvePluginsRelativeTo An absolute path the the directory that plugins should be resolved from.
* @property {Map<string,Rule>} builtInRules The rules that are built in to ESLint.
* @property {Object} [resolver=ModuleResolver] The module resolver object.
* @property {string} eslintAllPath The path to the definitions for eslint:all.
* @property {string} eslintRecommendedPath The path to the definitions for eslint:recommended.
*/
/**
* @typedef {Object} ConfigArrayFactoryLoadingContext
* @property {string} filePath The path to the current configuration.
* @property {string} matchBasePath The base path to resolve relative paths in `overrides[].files`, `overrides[].excludedFiles`, and `ignorePatterns`.
* @property {string} name The name of the current configuration.
* @property {string} pluginBasePath The base path to resolve plugins.
* @property {"config" | "ignore" | "implicit-processor"} type The type of the current configuration. This is `"config"` in normal. This is `"ignore"` if it came from `.eslintignore`. This is `"implicit-processor"` if it came from legacy file-extension processors.
*/
/**
* @typedef {Object} ConfigArrayFactoryLoadingContext
* @property {string} filePath The path to the current configuration.
* @property {string} matchBasePath The base path to resolve relative paths in `overrides[].files`, `overrides[].excludedFiles`, and `ignorePatterns`.
* @property {string} name The name of the current configuration.
* @property {"config" | "ignore" | "implicit-processor"} type The type of the current configuration. This is `"config"` in normal. This is `"ignore"` if it came from `.eslintignore`. This is `"implicit-processor"` if it came from legacy file-extension processors.
*/
/** @type {WeakMap<ConfigArrayFactory, ConfigArrayFactoryInternalSlots>} */
const internalSlotsMap = new WeakMap();
/**
* Check if a given string is a file path.
* @param {string} nameOrPath A module name or file path.
* @returns {boolean} `true` if the `nameOrPath` is a file path.
*/
function isFilePath(nameOrPath) {
return (
/^\.{1,2}[/\\]/u.test(nameOrPath) ||
path.isAbsolute(nameOrPath)
);
}
/**
* Convenience wrapper for synchronously reading file contents.
* @param {string} filePath The filename to read.
* @returns {string} The file contents, with the BOM removed.
* @private
*/
function readFile(filePath) {
return fs.readFileSync(filePath, "utf8").replace(/^\ufeff/u, "");
}
/**
* Loads a YAML configuration from a file.
* @param {string} filePath The filename to load.
* @returns {ConfigData} The configuration object from the file.
* @throws {Error} If the file cannot be read.
* @private
*/
function loadYAMLConfigFile(filePath) {
debug(`Loading YAML config file: ${filePath}`);
// lazy load YAML to improve performance when not used
const yaml = require("js-yaml");
try {
// empty YAML file can be null, so always use
return yaml.safeLoad(readFile(filePath)) || {};
} catch (e) {
debug(`Error reading YAML file: ${filePath}`);
e.message = `Cannot read config file: ${filePath}\nError: ${e.message}`;
throw e;
}
}
/**
* Loads a JSON configuration from a file.
* @param {string} filePath The filename to load.
* @returns {ConfigData} The configuration object from the file.
* @throws {Error} If the file cannot be read.
* @private
*/
function loadJSONConfigFile(filePath) {
debug(`Loading JSON config file: ${filePath}`);
try {
return JSON.parse(stripComments(readFile(filePath)));
} catch (e) {
debug(`Error reading JSON file: ${filePath}`);
e.message = `Cannot read config file: ${filePath}\nError: ${e.message}`;
e.messageTemplate = "failed-to-read-json";
e.messageData = {
path: filePath,
message: e.message
};
throw e;
}
}
/**
* Loads a legacy (.eslintrc) configuration from a file.
* @param {string} filePath The filename to load.
* @returns {ConfigData} The configuration object from the file.
* @throws {Error} If the file cannot be read.
* @private
*/
function loadLegacyConfigFile(filePath) {
debug(`Loading legacy config file: ${filePath}`);
// lazy load YAML to improve performance when not used
const yaml = require("js-yaml");
try {
return yaml.safeLoad(stripComments(readFile(filePath))) || /* istanbul ignore next */ {};
} catch (e) {
debug("Error reading YAML file: %s\n%o", filePath, e);
e.message = `Cannot read config file: ${filePath}\nError: ${e.message}`;
throw e;
}
}
/**
* Loads a JavaScript configuration from a file.
* @param {string} filePath The filename to load.
* @returns {ConfigData} The configuration object from the file.
* @throws {Error} If the file cannot be read.
* @private
*/
function loadJSConfigFile(filePath) {
debug(`Loading JS config file: ${filePath}`);
try {
return importFresh(filePath);
} catch (e) {
debug(`Error reading JavaScript file: ${filePath}`);
e.message = `Cannot read config file: ${filePath}\nError: ${e.message}`;
throw e;
}
}
/**
* Loads a configuration from a package.json file.
* @param {string} filePath The filename to load.
* @returns {ConfigData} The configuration object from the file.
* @throws {Error} If the file cannot be read.
* @private
*/
function loadPackageJSONConfigFile(filePath) {
debug(`Loading package.json config file: ${filePath}`);
try {
const packageData = loadJSONConfigFile(filePath);
if (!Object.hasOwnProperty.call(packageData, "eslintConfig")) {
throw Object.assign(
new Error("package.json file doesn't have 'eslintConfig' field."),
{ code: "ESLINT_CONFIG_FIELD_NOT_FOUND" }
);
}
return packageData.eslintConfig;
} catch (e) {
debug(`Error reading package.json file: ${filePath}`);
e.message = `Cannot read config file: ${filePath}\nError: ${e.message}`;
throw e;
}
}
/**
* Loads a `.eslintignore` from a file.
* @param {string} filePath The filename to load.
* @returns {string[]} The ignore patterns from the file.
* @private
*/
function loadESLintIgnoreFile(filePath) {
debug(`Loading .eslintignore file: ${filePath}`);
try {
return readFile(filePath)
.split(/\r?\n/gu)
.filter(line => line.trim() !== "" && !line.startsWith("#"));
} catch (e) {
debug(`Error reading .eslintignore file: ${filePath}`);
e.message = `Cannot read .eslintignore file: ${filePath}\nError: ${e.message}`;
throw e;
}
}
/**
* Creates an error to notify about a missing config to extend from.
* @param {string} configName The name of the missing config.
* @param {string} importerName The name of the config that imported the missing config
* @param {string} messageTemplate The text template to source error strings from.
* @returns {Error} The error object to throw
* @private
*/
function configInvalidError(configName, importerName, messageTemplate) {
return Object.assign(
new Error(`Failed to load config "${configName}" to extend from.`),
{
messageTemplate,
messageData: { configName, importerName }
}
);
}
/**
* Loads a configuration file regardless of the source. Inspects the file path
* to determine the correctly way to load the config file.
* @param {string} filePath The path to the configuration.
* @returns {ConfigData|null} The configuration information.
* @private
*/
function loadConfigFile(filePath) {
switch (path.extname(filePath)) {
case ".js":
case ".cjs":
return loadJSConfigFile(filePath);
case ".json":
if (path.basename(filePath) === "package.json") {
return loadPackageJSONConfigFile(filePath);
}
return loadJSONConfigFile(filePath);
case ".yaml":
case ".yml":
return loadYAMLConfigFile(filePath);
default:
return loadLegacyConfigFile(filePath);
}
}
/**
* Write debug log.
* @param {string} request The requested module name.
* @param {string} relativeTo The file path to resolve the request relative to.
* @param {string} filePath The resolved file path.
* @returns {void}
*/
function writeDebugLogForLoading(request, relativeTo, filePath) {
/* istanbul ignore next */
if (debug.enabled) {
let nameAndVersion = null;
try {
const packageJsonPath = ModuleResolver.resolve(
`${request}/package.json`,
relativeTo
);
const { version = "unknown" } = require(packageJsonPath);
nameAndVersion = `${request}@${version}`;
} catch (error) {
debug("package.json was not found:", error.message);
nameAndVersion = request;
}
debug("Loaded: %s (%s)", nameAndVersion, filePath);
}
}
/**
* Create a new context with default values.
* @param {ConfigArrayFactoryInternalSlots} slots The internal slots.
* @param {"config" | "ignore" | "implicit-processor" | undefined} providedType The type of the current configuration. Default is `"config"`.
* @param {string | undefined} providedName The name of the current configuration. Default is the relative path from `cwd` to `filePath`.
* @param {string | undefined} providedFilePath The path to the current configuration. Default is empty string.
* @param {string | undefined} providedMatchBasePath The type of the current configuration. Default is the directory of `filePath` or `cwd`.
* @returns {ConfigArrayFactoryLoadingContext} The created context.
*/
function createContext(
{ cwd, resolvePluginsRelativeTo },
providedType,
providedName,
providedFilePath,
providedMatchBasePath
) {
const filePath = providedFilePath
? path.resolve(cwd, providedFilePath)
: "";
const matchBasePath =
(providedMatchBasePath && path.resolve(cwd, providedMatchBasePath)) ||
(filePath && path.dirname(filePath)) ||
cwd;
const name =
providedName ||
(filePath && path.relative(cwd, filePath)) ||
"";
const pluginBasePath =
resolvePluginsRelativeTo ||
(filePath && path.dirname(filePath)) ||
cwd;
const type = providedType || "config";
return { filePath, matchBasePath, name, pluginBasePath, type };
}
/**
* Normalize a given plugin.
* - Ensure the object to have four properties: configs, environments, processors, and rules.
* - Ensure the object to not have other properties.
* @param {Plugin} plugin The plugin to normalize.
* @returns {Plugin} The normalized plugin.
*/
function normalizePlugin(plugin) {
return {
configs: plugin.configs || {},
environments: plugin.environments || {},
processors: plugin.processors || {},
rules: plugin.rules || {}
};
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
/**
* The factory of `ConfigArray` objects.
*/
class ConfigArrayFactory {
/**
* Initialize this instance.
* @param {ConfigArrayFactoryOptions} [options] The map for additional plugins.
*/
constructor({
additionalPluginPool = new Map(),
cwd = process.cwd(),
resolvePluginsRelativeTo,
builtInRules,
resolver = ModuleResolver,
eslintAllPath,
eslintRecommendedPath
} = {}) {
internalSlotsMap.set(this, {
additionalPluginPool,
cwd,
resolvePluginsRelativeTo:
resolvePluginsRelativeTo &&
path.resolve(cwd, resolvePluginsRelativeTo),
builtInRules,
resolver,
eslintAllPath,
eslintRecommendedPath
});
}
/**
* Create `ConfigArray` instance from a config data.
* @param {ConfigData|null} configData The config data to create.
* @param {Object} [options] The options.
* @param {string} [options.basePath] The base path to resolve relative paths in `overrides[].files`, `overrides[].excludedFiles`, and `ignorePatterns`.
* @param {string} [options.filePath] The path to this config data.
* @param {string} [options.name] The config name.
* @returns {ConfigArray} Loaded config.
*/
create(configData, { basePath, filePath, name } = {}) {
if (!configData) {
return new ConfigArray();
}
const slots = internalSlotsMap.get(this);
const ctx = createContext(slots, "config", name, filePath, basePath);
const elements = this._normalizeConfigData(configData, ctx);
return new ConfigArray(...elements);
}
/**
* Load a config file.
* @param {string} filePath The path to a config file.
* @param {Object} [options] The options.
* @param {string} [options.basePath] The base path to resolve relative paths in `overrides[].files`, `overrides[].excludedFiles`, and `ignorePatterns`.
* @param {string} [options.name] The config name.
* @returns {ConfigArray} Loaded config.
*/
loadFile(filePath, { basePath, name } = {}) {
const slots = internalSlotsMap.get(this);
const ctx = createContext(slots, "config", name, filePath, basePath);
return new ConfigArray(...this._loadConfigData(ctx));
}
/**
* Load the config file on a given directory if exists.
* @param {string} directoryPath The path to a directory.
* @param {Object} [options] The options.
* @param {string} [options.basePath] The base path to resolve relative paths in `overrides[].files`, `overrides[].excludedFiles`, and `ignorePatterns`.
* @param {string} [options.name] The config name.
* @returns {ConfigArray} Loaded config. An empty `ConfigArray` if any config doesn't exist.
*/
loadInDirectory(directoryPath, { basePath, name } = {}) {
const slots = internalSlotsMap.get(this);
for (const filename of configFilenames) {
const ctx = createContext(
slots,
"config",
name,
path.join(directoryPath, filename),
basePath
);
if (fs.existsSync(ctx.filePath) && fs.statSync(ctx.filePath).isFile()) {
let configData;
try {
configData = loadConfigFile(ctx.filePath);
} catch (error) {
if (!error || error.code !== "ESLINT_CONFIG_FIELD_NOT_FOUND") {
throw error;
}
}
if (configData) {
debug(`Config file found: ${ctx.filePath}`);
return new ConfigArray(
...this._normalizeConfigData(configData, ctx)
);
}
}
}
debug(`Config file not found on ${directoryPath}`);
return new ConfigArray();
}
/**
* Check if a config file on a given directory exists or not.
* @param {string} directoryPath The path to a directory.
* @returns {string | null} The path to the found config file. If not found then null.
*/
static getPathToConfigFileInDirectory(directoryPath) {
for (const filename of configFilenames) {
const filePath = path.join(directoryPath, filename);
if (fs.existsSync(filePath)) {
if (filename === "package.json") {
try {
loadPackageJSONConfigFile(filePath);
return filePath;
} catch { /* ignore */ }
} else {
return filePath;
}
}
}
return null;
}
/**
* Load `.eslintignore` file.
* @param {string} filePath The path to a `.eslintignore` file to load.
* @returns {ConfigArray} Loaded config. An empty `ConfigArray` if any config doesn't exist.
*/
loadESLintIgnore(filePath) {
const slots = internalSlotsMap.get(this);
const ctx = createContext(
slots,
"ignore",
void 0,
filePath,
slots.cwd
);
const ignorePatterns = loadESLintIgnoreFile(ctx.filePath);
return new ConfigArray(
...this._normalizeESLintIgnoreData(ignorePatterns, ctx)
);
}
/**
* Load `.eslintignore` file in the current working directory.
* @returns {ConfigArray} Loaded config. An empty `ConfigArray` if any config doesn't exist.
*/
loadDefaultESLintIgnore() {
const slots = internalSlotsMap.get(this);
const eslintIgnorePath = path.resolve(slots.cwd, ".eslintignore");
const packageJsonPath = path.resolve(slots.cwd, "package.json");
if (fs.existsSync(eslintIgnorePath)) {
return this.loadESLintIgnore(eslintIgnorePath);
}
if (fs.existsSync(packageJsonPath)) {
const data = loadJSONConfigFile(packageJsonPath);
if (Object.hasOwnProperty.call(data, "eslintIgnore")) {
if (!Array.isArray(data.eslintIgnore)) {
throw new Error("Package.json eslintIgnore property requires an array of paths");
}
const ctx = createContext(
slots,
"ignore",
"eslintIgnore in package.json",
packageJsonPath,
slots.cwd
);
return new ConfigArray(
...this._normalizeESLintIgnoreData(data.eslintIgnore, ctx)
);
}
}
return new ConfigArray();
}
/**
* Load a given config file.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {IterableIterator<ConfigArrayElement>} Loaded config.
* @private
*/
_loadConfigData(ctx) {
return this._normalizeConfigData(loadConfigFile(ctx.filePath), ctx);
}
/**
* Normalize a given `.eslintignore` data to config array elements.
* @param {string[]} ignorePatterns The patterns to ignore files.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {IterableIterator<ConfigArrayElement>} The normalized config.
* @private
*/
*_normalizeESLintIgnoreData(ignorePatterns, ctx) {
const elements = this._normalizeObjectConfigData(
{ ignorePatterns },
ctx
);
// Set `ignorePattern.loose` flag for backward compatibility.
for (const element of elements) {
if (element.ignorePattern) {
element.ignorePattern.loose = true;
}
yield element;
}
}
/**
* Normalize a given config to an array.
* @param {ConfigData} configData The config data to normalize.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {IterableIterator<ConfigArrayElement>} The normalized config.
* @private
*/
_normalizeConfigData(configData, ctx) {
const validator = new ConfigValidator();
validator.validateConfigSchema(configData, ctx.name || ctx.filePath);
return this._normalizeObjectConfigData(configData, ctx);
}
/**
* Normalize a given config to an array.
* @param {ConfigData|OverrideConfigData} configData The config data to normalize.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {IterableIterator<ConfigArrayElement>} The normalized config.
* @private
*/
*_normalizeObjectConfigData(configData, ctx) {
const { files, excludedFiles, ...configBody } = configData;
const criteria = OverrideTester.create(
files,
excludedFiles,
ctx.matchBasePath
);
const elements = this._normalizeObjectConfigDataBody(configBody, ctx);
// Apply the criteria to every element.
for (const element of elements) {
/*
* Merge the criteria.
* This is for the `overrides` entries that came from the
* configurations of `overrides[].extends`.
*/
element.criteria = OverrideTester.and(criteria, element.criteria);
/*
* Remove `root` property to ignore `root` settings which came from
* `extends` in `overrides`.
*/
if (element.criteria) {
element.root = void 0;
}
yield element;
}
}
/**
* Normalize a given config to an array.
* @param {ConfigData} configData The config data to normalize.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {IterableIterator<ConfigArrayElement>} The normalized config.
* @private
*/
*_normalizeObjectConfigDataBody(
{
env,
extends: extend,
globals,
ignorePatterns,
noInlineConfig,
parser: parserName,
parserOptions,
plugins: pluginList,
processor,
reportUnusedDisableDirectives,
root,
rules,
settings,
overrides: overrideList = []
},
ctx
) {
const extendList = Array.isArray(extend) ? extend : [extend];
const ignorePattern = ignorePatterns && new IgnorePattern(
Array.isArray(ignorePatterns) ? ignorePatterns : [ignorePatterns],
ctx.matchBasePath
);
// Flatten `extends`.
for (const extendName of extendList.filter(Boolean)) {
yield* this._loadExtends(extendName, ctx);
}
// Load parser & plugins.
const parser = parserName && this._loadParser(parserName, ctx);
const plugins = pluginList && this._loadPlugins(pluginList, ctx);
// Yield pseudo config data for file extension processors.
if (plugins) {
yield* this._takeFileExtensionProcessors(plugins, ctx);
}
// Yield the config data except `extends` and `overrides`.
yield {
// Debug information.
type: ctx.type,
name: ctx.name,
filePath: ctx.filePath,
// Config data.
criteria: null,
env,
globals,
ignorePattern,
noInlineConfig,
parser,
parserOptions,
plugins,
processor,
reportUnusedDisableDirectives,
root,
rules,
settings
};
// Flatten `overries`.
for (let i = 0; i < overrideList.length; ++i) {
yield* this._normalizeObjectConfigData(
overrideList[i],
{ ...ctx, name: `${ctx.name}#overrides[${i}]` }
);
}
}
/**
* Load configs of an element in `extends`.
* @param {string} extendName The name of a base config.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {IterableIterator<ConfigArrayElement>} The normalized config.
* @private
*/
_loadExtends(extendName, ctx) {
debug("Loading {extends:%j} relative to %s", extendName, ctx.filePath);
try {
if (extendName.startsWith("eslint:")) {
return this._loadExtendedBuiltInConfig(extendName, ctx);
}
if (extendName.startsWith("plugin:")) {
return this._loadExtendedPluginConfig(extendName, ctx);
}
return this._loadExtendedShareableConfig(extendName, ctx);
} catch (error) {
error.message += `\nReferenced from: ${ctx.filePath || ctx.name}`;
throw error;
}
}
/**
* Load configs of an element in `extends`.
* @param {string} extendName The name of a base config.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {IterableIterator<ConfigArrayElement>} The normalized config.
* @private
*/
_loadExtendedBuiltInConfig(extendName, ctx) {
const { eslintAllPath, eslintRecommendedPath } = internalSlotsMap.get(this);
if (extendName === "eslint:recommended") {
return this._loadConfigData({
...ctx,
filePath: eslintRecommendedPath,
name: `${ctx.name} » ${extendName}`
});
}
if (extendName === "eslint:all") {
return this._loadConfigData({
...ctx,
filePath: eslintAllPath,
name: `${ctx.name} » ${extendName}`
});
}
throw configInvalidError(extendName, ctx.name, "extend-config-missing");
}
/**
* Load configs of an element in `extends`.
* @param {string} extendName The name of a base config.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {IterableIterator<ConfigArrayElement>} The normalized config.
* @private
*/
_loadExtendedPluginConfig(extendName, ctx) {
const slashIndex = extendName.lastIndexOf("/");
if (slashIndex === -1) {
throw configInvalidError(extendName, ctx.filePath, "plugin-invalid");
}
const pluginName = extendName.slice("plugin:".length, slashIndex);
const configName = extendName.slice(slashIndex + 1);
if (isFilePath(pluginName)) {
throw new Error("'extends' cannot use a file path for plugins.");
}
const plugin = this._loadPlugin(pluginName, ctx);
const configData =
plugin.definition &&
plugin.definition.configs[configName];
if (configData) {
return this._normalizeConfigData(configData, {
...ctx,
filePath: plugin.filePath || ctx.filePath,
name: `${ctx.name} » plugin:${plugin.id}/${configName}`
});
}
throw plugin.error || configInvalidError(extendName, ctx.filePath, "extend-config-missing");
}
/**
* Load configs of an element in `extends`.
* @param {string} extendName The name of a base config.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {IterableIterator<ConfigArrayElement>} The normalized config.
* @private
*/
_loadExtendedShareableConfig(extendName, ctx) {
const { cwd, resolver } = internalSlotsMap.get(this);
const relativeTo = ctx.filePath || path.join(cwd, "__placeholder__.js");
let request;
if (isFilePath(extendName)) {
request = extendName;
} else if (extendName.startsWith(".")) {
request = `./${extendName}`; // For backward compatibility. A ton of tests depended on this behavior.
} else {
request = naming.normalizePackageName(
extendName,
"eslint-config"
);
}
let filePath;
try {
filePath = resolver.resolve(request, relativeTo);
} catch (error) {
/* istanbul ignore else */
if (error && error.code === "MODULE_NOT_FOUND") {
throw configInvalidError(extendName, ctx.filePath, "extend-config-missing");
}
throw error;
}
writeDebugLogForLoading(request, relativeTo, filePath);
return this._loadConfigData({
...ctx,
filePath,
name: `${ctx.name} » ${request}`
});
}
/**
* Load given plugins.
* @param {string[]} names The plugin names to load.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {Record<string,DependentPlugin>} The loaded parser.
* @private
*/
_loadPlugins(names, ctx) {
return names.reduce((map, name) => {
if (isFilePath(name)) {
throw new Error("Plugins array cannot includes file paths.");
}
const plugin = this._loadPlugin(name, ctx);
map[plugin.id] = plugin;
return map;
}, {});
}
/**
* Load a given parser.
* @param {string} nameOrPath The package name or the path to a parser file.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {DependentParser} The loaded parser.
*/
_loadParser(nameOrPath, ctx) {
debug("Loading parser %j from %s", nameOrPath, ctx.filePath);
const { cwd } = internalSlotsMap.get(this);
const relativeTo = ctx.filePath || path.join(cwd, "__placeholder__.js");
try {
const filePath = ModuleResolver.resolve(nameOrPath, relativeTo);
writeDebugLogForLoading(nameOrPath, relativeTo, filePath);
return new ConfigDependency({
definition: require(filePath),
filePath,
id: nameOrPath,
importerName: ctx.name,
importerPath: ctx.filePath
});
} catch (error) {
// If the parser name is "espree", load the espree of ESLint.
if (nameOrPath === "espree") {
debug("Fallback espree.");
return new ConfigDependency({
definition: require("espree"),
filePath: require.resolve("espree"),
id: nameOrPath,
importerName: ctx.name,
importerPath: ctx.filePath
});
}
debug("Failed to load parser '%s' declared in '%s'.", nameOrPath, ctx.name);
error.message = `Failed to load parser '${nameOrPath}' declared in '${ctx.name}': ${error.message}`;
return new ConfigDependency({
error,
id: nameOrPath,
importerName: ctx.name,
importerPath: ctx.filePath
});
}
}
/**
* Load a given plugin.
* @param {string} name The plugin name to load.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {DependentPlugin} The loaded plugin.
* @private
*/
_loadPlugin(name, ctx) {
debug("Loading plugin %j from %s", name, ctx.filePath);
const { additionalPluginPool } = internalSlotsMap.get(this);
const request = naming.normalizePackageName(name, "eslint-plugin");
const id = naming.getShorthandName(request, "eslint-plugin");
const relativeTo = path.join(ctx.pluginBasePath, "__placeholder__.js");
if (name.match(/\s+/u)) {
const error = Object.assign(
new Error(`Whitespace found in plugin name '${name}'`),
{
messageTemplate: "whitespace-found",
messageData: { pluginName: request }
}
);
return new ConfigDependency({
error,
id,
importerName: ctx.name,
importerPath: ctx.filePath
});
}
// Check for additional pool.
const plugin =
additionalPluginPool.get(request) ||
additionalPluginPool.get(id);
if (plugin) {
return new ConfigDependency({
definition: normalizePlugin(plugin),
filePath: "", // It's unknown where the plugin came from.
id,
importerName: ctx.name,
importerPath: ctx.filePath
});
}
let filePath;
let error;
try {
filePath = ModuleResolver.resolve(request, relativeTo);
} catch (resolveError) {
error = resolveError;
/* istanbul ignore else */
if (error && error.code === "MODULE_NOT_FOUND") {
error.messageTemplate = "plugin-missing";
error.messageData = {
pluginName: request,
resolvePluginsRelativeTo: ctx.pluginBasePath,
importerName: ctx.name
};
}
}
if (filePath) {
try {
writeDebugLogForLoading(request, relativeTo, filePath);
const startTime = Date.now();
const pluginDefinition = require(filePath);
debug(`Plugin ${filePath} loaded in: ${Date.now() - startTime}ms`);
return new ConfigDependency({
definition: normalizePlugin(pluginDefinition),
filePath,
id,
importerName: ctx.name,
importerPath: ctx.filePath
});
} catch (loadError) {
error = loadError;
}
}
debug("Failed to load plugin '%s' declared in '%s'.", name, ctx.name);
error.message = `Failed to load plugin '${name}' declared in '${ctx.name}': ${error.message}`;
return new ConfigDependency({
error,
id,
importerName: ctx.name,
importerPath: ctx.filePath
});
}
/**
* Take file expression processors as config array elements.
* @param {Record<string,DependentPlugin>} plugins The plugin definitions.
* @param {ConfigArrayFactoryLoadingContext} ctx The loading context.
* @returns {IterableIterator<ConfigArrayElement>} The config array elements of file expression processors.
* @private
*/
*_takeFileExtensionProcessors(plugins, ctx) {
for (const pluginId of Object.keys(plugins)) {
const processors =
plugins[pluginId] &&
plugins[pluginId].definition &&
plugins[pluginId].definition.processors;
if (!processors) {
continue;
}
for (const processorId of Object.keys(processors)) {
if (processorId.startsWith(".")) {
yield* this._normalizeObjectConfigData(
{
files: [`*${processorId}`],
processor: `${pluginId}/${processorId}`
},
{
...ctx,
type: "implicit-processor",
name: `${ctx.name}#processors["${pluginId}/${processorId}"]`
}
);
}
}
}
}
}
module.exports = { ConfigArrayFactory, createContext };
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/**
* @fileoverview `ConfigArray` class.
*
* `ConfigArray` class expresses the full of a configuration. It has the entry
* config file, base config files that were extended, loaded parsers, and loaded
* plugins.
*
* `ConfigArray` class provides three properties and two methods.
*
* - `pluginEnvironments`
* - `pluginProcessors`
* - `pluginRules`
* The `Map` objects that contain the members of all plugins that this
* config array contains. Those map objects don't have mutation methods.
* Those keys are the member ID such as `pluginId/memberName`.
* - `isRoot()`
* If `true` then this configuration has `root:true` property.
* - `extractConfig(filePath)`
* Extract the final configuration for a given file. This means merging
* every config array element which that `criteria` property matched. The
* `filePath` argument must be an absolute path.
*
* `ConfigArrayFactory` provides the loading logic of config files.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const { ExtractedConfig } = require("./extracted-config");
const { IgnorePattern } = require("./ignore-pattern");
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
// Define types for VSCode IntelliSense.
/** @typedef {import("../../shared/types").Environment} Environment */
/** @typedef {import("../../shared/types").GlobalConf} GlobalConf */
/** @typedef {import("../../shared/types").RuleConf} RuleConf */
/** @typedef {import("../../shared/types").Rule} Rule */
/** @typedef {import("../../shared/types").Plugin} Plugin */
/** @typedef {import("../../shared/types").Processor} Processor */
/** @typedef {import("./config-dependency").DependentParser} DependentParser */
/** @typedef {import("./config-dependency").DependentPlugin} DependentPlugin */
/** @typedef {import("./override-tester")["OverrideTester"]} OverrideTester */
/**
* @typedef {Object} ConfigArrayElement
* @property {string} name The name of this config element.
* @property {string} filePath The path to the source file of this config element.
* @property {InstanceType<OverrideTester>|null} criteria The tester for the `files` and `excludedFiles` of this config element.
* @property {Record<string, boolean>|undefined} env The environment settings.
* @property {Record<string, GlobalConf>|undefined} globals The global variable settings.
* @property {IgnorePattern|undefined} ignorePattern The ignore patterns.
* @property {boolean|undefined} noInlineConfig The flag that disables directive comments.
* @property {DependentParser|undefined} parser The parser loader.
* @property {Object|undefined} parserOptions The parser options.
* @property {Record<string, DependentPlugin>|undefined} plugins The plugin loaders.
* @property {string|undefined} processor The processor name to refer plugin's processor.
* @property {boolean|undefined} reportUnusedDisableDirectives The flag to report unused `eslint-disable` comments.
* @property {boolean|undefined} root The flag to express root.
* @property {Record<string, RuleConf>|undefined} rules The rule settings
* @property {Object|undefined} settings The shared settings.
* @property {"config" | "ignore" | "implicit-processor"} type The element type.
*/
/**
* @typedef {Object} ConfigArrayInternalSlots
* @property {Map<string, ExtractedConfig>} cache The cache to extract configs.
* @property {ReadonlyMap<string, Environment>|null} envMap The map from environment ID to environment definition.
* @property {ReadonlyMap<string, Processor>|null} processorMap The map from processor ID to environment definition.
* @property {ReadonlyMap<string, Rule>|null} ruleMap The map from rule ID to rule definition.
*/
/** @type {WeakMap<ConfigArray, ConfigArrayInternalSlots>} */
const internalSlotsMap = new class extends WeakMap {
get(key) {
let value = super.get(key);
if (!value) {
value = {
cache: new Map(),
envMap: null,
processorMap: null,
ruleMap: null
};
super.set(key, value);
}
return value;
}
}();
/**
* Get the indices which are matched to a given file.
* @param {ConfigArrayElement[]} elements The elements.
* @param {string} filePath The path to a target file.
* @returns {number[]} The indices.
*/
function getMatchedIndices(elements, filePath) {
const indices = [];
for (let i = elements.length - 1; i >= 0; --i) {
const element = elements[i];
if (!element.criteria || (filePath && element.criteria.test(filePath))) {
indices.push(i);
}
}
return indices;
}
/**
* Check if a value is a non-null object.
* @param {any} x The value to check.
* @returns {boolean} `true` if the value is a non-null object.
*/
function isNonNullObject(x) {
return typeof x === "object" && x !== null;
}
/**
* Merge two objects.
*
* Assign every property values of `y` to `x` if `x` doesn't have the property.
* If `x`'s property value is an object, it does recursive.
* @param {Object} target The destination to merge
* @param {Object|undefined} source The source to merge.
* @returns {void}
*/
function mergeWithoutOverwrite(target, source) {
if (!isNonNullObject(source)) {
return;
}
for (const key of Object.keys(source)) {
if (key === "__proto__") {
continue;
}
if (isNonNullObject(target[key])) {
mergeWithoutOverwrite(target[key], source[key]);
} else if (target[key] === void 0) {
if (isNonNullObject(source[key])) {
target[key] = Array.isArray(source[key]) ? [] : {};
mergeWithoutOverwrite(target[key], source[key]);
} else if (source[key] !== void 0) {
target[key] = source[key];
}
}
}
}
/**
* The error for plugin conflicts.
*/
class PluginConflictError extends Error {
/**
* Initialize this error object.
* @param {string} pluginId The plugin ID.
* @param {{filePath:string, importerName:string}[]} plugins The resolved plugins.
*/
constructor(pluginId, plugins) {
super(`Plugin "${pluginId}" was conflicted between ${plugins.map(p => `"${p.importerName}"`).join(" and ")}.`);
this.messageTemplate = "plugin-conflict";
this.messageData = { pluginId, plugins };
}
}
/**
* Merge plugins.
* `target`'s definition is prior to `source`'s.
* @param {Record<string, DependentPlugin>} target The destination to merge
* @param {Record<string, DependentPlugin>|undefined} source The source to merge.
* @returns {void}
*/
function mergePlugins(target, source) {
if (!isNonNullObject(source)) {
return;
}
for (const key of Object.keys(source)) {
if (key === "__proto__") {
continue;
}
const targetValue = target[key];
const sourceValue = source[key];
// Adopt the plugin which was found at first.
if (targetValue === void 0) {
if (sourceValue.error) {
throw sourceValue.error;
}
target[key] = sourceValue;
} else if (sourceValue.filePath !== targetValue.filePath) {
throw new PluginConflictError(key, [
{
filePath: targetValue.filePath,
importerName: targetValue.importerName
},
{
filePath: sourceValue.filePath,
importerName: sourceValue.importerName
}
]);
}
}
}
/**
* Merge rule configs.
* `target`'s definition is prior to `source`'s.
* @param {Record<string, Array>} target The destination to merge
* @param {Record<string, RuleConf>|undefined} source The source to merge.
* @returns {void}
*/
function mergeRuleConfigs(target, source) {
if (!isNonNullObject(source)) {
return;
}
for (const key of Object.keys(source)) {
if (key === "__proto__") {
continue;
}
const targetDef = target[key];
const sourceDef = source[key];
// Adopt the rule config which was found at first.
if (targetDef === void 0) {
if (Array.isArray(sourceDef)) {
target[key] = [...sourceDef];
} else {
target[key] = [sourceDef];
}
/*
* If the first found rule config is severity only and the current rule
* config has options, merge the severity and the options.
*/
} else if (
targetDef.length === 1 &&
Array.isArray(sourceDef) &&
sourceDef.length >= 2
) {
targetDef.push(...sourceDef.slice(1));
}
}
}
/**
* Create the extracted config.
* @param {ConfigArray} instance The config elements.
* @param {number[]} indices The indices to use.
* @returns {ExtractedConfig} The extracted config.
*/
function createConfig(instance, indices) {
const config = new ExtractedConfig();
const ignorePatterns = [];
// Merge elements.
for (const index of indices) {
const element = instance[index];
// Adopt the parser which was found at first.
if (!config.parser && element.parser) {
if (element.parser.error) {
throw element.parser.error;
}
config.parser = element.parser;
}
// Adopt the processor which was found at first.
if (!config.processor && element.processor) {
config.processor = element.processor;
}
// Adopt the noInlineConfig which was found at first.
if (config.noInlineConfig === void 0 && element.noInlineConfig !== void 0) {
config.noInlineConfig = element.noInlineConfig;
config.configNameOfNoInlineConfig = element.name;
}
// Adopt the reportUnusedDisableDirectives which was found at first.
if (config.reportUnusedDisableDirectives === void 0 && element.reportUnusedDisableDirectives !== void 0) {
config.reportUnusedDisableDirectives = element.reportUnusedDisableDirectives;
}
// Collect ignorePatterns
if (element.ignorePattern) {
ignorePatterns.push(element.ignorePattern);
}
// Merge others.
mergeWithoutOverwrite(config.env, element.env);
mergeWithoutOverwrite(config.globals, element.globals);
mergeWithoutOverwrite(config.parserOptions, element.parserOptions);
mergeWithoutOverwrite(config.settings, element.settings);
mergePlugins(config.plugins, element.plugins);
mergeRuleConfigs(config.rules, element.rules);
}
// Create the predicate function for ignore patterns.
if (ignorePatterns.length > 0) {
config.ignores = IgnorePattern.createIgnore(ignorePatterns.reverse());
}
return config;
}
/**
* Collect definitions.
* @template T, U
* @param {string} pluginId The plugin ID for prefix.
* @param {Record<string,T>} defs The definitions to collect.
* @param {Map<string, U>} map The map to output.
* @param {function(T): U} [normalize] The normalize function for each value.
* @returns {void}
*/
function collect(pluginId, defs, map, normalize) {
if (defs) {
const prefix = pluginId && `${pluginId}/`;
for (const [key, value] of Object.entries(defs)) {
map.set(
`${prefix}${key}`,
normalize ? normalize(value) : value
);
}
}
}
/**
* Normalize a rule definition.
* @param {Function|Rule} rule The rule definition to normalize.
* @returns {Rule} The normalized rule definition.
*/
function normalizePluginRule(rule) {
return typeof rule === "function" ? { create: rule } : rule;
}
/**
* Delete the mutation methods from a given map.
* @param {Map<any, any>} map The map object to delete.
* @returns {void}
*/
function deleteMutationMethods(map) {
Object.defineProperties(map, {
clear: { configurable: true, value: void 0 },
delete: { configurable: true, value: void 0 },
set: { configurable: true, value: void 0 }
});
}
/**
* Create `envMap`, `processorMap`, `ruleMap` with the plugins in the config array.
* @param {ConfigArrayElement[]} elements The config elements.
* @param {ConfigArrayInternalSlots} slots The internal slots.
* @returns {void}
*/
function initPluginMemberMaps(elements, slots) {
const processed = new Set();
slots.envMap = new Map();
slots.processorMap = new Map();
slots.ruleMap = new Map();
for (const element of elements) {
if (!element.plugins) {
continue;
}
for (const [pluginId, value] of Object.entries(element.plugins)) {
const plugin = value.definition;
if (!plugin || processed.has(pluginId)) {
continue;
}
processed.add(pluginId);
collect(pluginId, plugin.environments, slots.envMap);
collect(pluginId, plugin.processors, slots.processorMap);
collect(pluginId, plugin.rules, slots.ruleMap, normalizePluginRule);
}
}
deleteMutationMethods(slots.envMap);
deleteMutationMethods(slots.processorMap);
deleteMutationMethods(slots.ruleMap);
}
/**
* Create `envMap`, `processorMap`, `ruleMap` with the plugins in the config array.
* @param {ConfigArray} instance The config elements.
* @returns {ConfigArrayInternalSlots} The extracted config.
*/
function ensurePluginMemberMaps(instance) {
const slots = internalSlotsMap.get(instance);
if (!slots.ruleMap) {
initPluginMemberMaps(instance, slots);
}
return slots;
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
/**
* The Config Array.
*
* `ConfigArray` instance contains all settings, parsers, and plugins.
* You need to call `ConfigArray#extractConfig(filePath)` method in order to
* extract, merge and get only the config data which is related to an arbitrary
* file.
* @extends {Array<ConfigArrayElement>}
*/
class ConfigArray extends Array {
/**
* Get the plugin environments.
* The returned map cannot be mutated.
* @type {ReadonlyMap<string, Environment>} The plugin environments.
*/
get pluginEnvironments() {
return ensurePluginMemberMaps(this).envMap;
}
/**
* Get the plugin processors.
* The returned map cannot be mutated.
* @type {ReadonlyMap<string, Processor>} The plugin processors.
*/
get pluginProcessors() {
return ensurePluginMemberMaps(this).processorMap;
}
/**
* Get the plugin rules.
* The returned map cannot be mutated.
* @returns {ReadonlyMap<string, Rule>} The plugin rules.
*/
get pluginRules() {
return ensurePluginMemberMaps(this).ruleMap;
}
/**
* Check if this config has `root` flag.
* @returns {boolean} `true` if this config array is root.
*/
isRoot() {
for (let i = this.length - 1; i >= 0; --i) {
const root = this[i].root;
if (typeof root === "boolean") {
return root;
}
}
return false;
}
/**
* Extract the config data which is related to a given file.
* @param {string} filePath The absolute path to the target file.
* @returns {ExtractedConfig} The extracted config data.
*/
extractConfig(filePath) {
const { cache } = internalSlotsMap.get(this);
const indices = getMatchedIndices(this, filePath);
const cacheKey = indices.join(",");
if (!cache.has(cacheKey)) {
cache.set(cacheKey, createConfig(this, indices));
}
return cache.get(cacheKey);
}
/**
* Check if a given path is an additional lint target.
* @param {string} filePath The absolute path to the target file.
* @returns {boolean} `true` if the file is an additional lint target.
*/
isAdditionalTargetPath(filePath) {
for (const { criteria, type } of this) {
if (
type === "config" &&
criteria &&
!criteria.endsWithWildcard &&
criteria.test(filePath)
) {
return true;
}
}
return false;
}
}
const exportObject = {
ConfigArray,
/**
* Get the used extracted configs.
* CLIEngine will use this method to collect used deprecated rules.
* @param {ConfigArray} instance The config array object to get.
* @returns {ExtractedConfig[]} The used extracted configs.
* @private
*/
getUsedExtractedConfigs(instance) {
const { cache } = internalSlotsMap.get(instance);
return Array.from(cache.values());
}
};
module.exports = exportObject;
node_modules/@eslint/eslintrc/lib/config-array/config-dependency.js deleted 100644 → 0
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/**
* @fileoverview `ConfigDependency` class.
*
* `ConfigDependency` class expresses a loaded parser or plugin.
*
* If the parser or plugin was loaded successfully, it has `definition` property
* and `filePath` property. Otherwise, it has `error` property.
*
* When `JSON.stringify()` converted a `ConfigDependency` object to a JSON, it
* omits `definition` property.
*
* `ConfigArrayFactory` creates `ConfigDependency` objects when it loads parsers
* or plugins.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
"use strict";
const util = require("util");
/**
* The class is to store parsers or plugins.
* This class hides the loaded object from `JSON.stringify()` and `console.log`.
* @template T
*/
class ConfigDependency {
/**
* Initialize this instance.
* @param {Object} data The dependency data.
* @param {T} [data.definition] The dependency if the loading succeeded.
* @param {Error} [data.error] The error object if the loading failed.
* @param {string} [data.filePath] The actual path to the dependency if the loading succeeded.
* @param {string} data.id The ID of this dependency.
* @param {string} data.importerName The name of the config file which loads this dependency.
* @param {string} data.importerPath The path to the config file which loads this dependency.
*/
constructor({
definition = null,
error = null,
filePath = null,
id,
importerName,
importerPath
}) {
/**
* The loaded dependency if the loading succeeded.
* @type {T|null}
*/
this.definition = definition;
/**
* The error object if the loading failed.
* @type {Error|null}
*/
this.error = error;
/**
* The loaded dependency if the loading succeeded.
* @type {string|null}
*/
this.filePath = filePath;
/**
* The ID of this dependency.
* @type {string}
*/
this.id = id;
/**
* The name of the config file which loads this dependency.
* @type {string}
*/
this.importerName = importerName;
/**
* The path to the config file which loads this dependency.
* @type {string}
*/
this.importerPath = importerPath;
}
// eslint-disable-next-line jsdoc/require-description
/**
* @returns {Object} a JSON compatible object.
*/
toJSON() {
const obj = this[util.inspect.custom]();
// Display `error.message` (`Error#message` is unenumerable).
if (obj.error instanceof Error) {
obj.error = { ...obj.error, message: obj.error.message };
}
return obj;
}
// eslint-disable-next-line jsdoc/require-description
/**
* @returns {Object} an object to display by `console.log()`.
*/
[util.inspect.custom]() {
const {
definition: _ignore, // eslint-disable-line no-unused-vars
...obj
} = this;
return obj;
}
}
/** @typedef {ConfigDependency<import("../../shared/types").Parser>} DependentParser */
/** @typedef {ConfigDependency<import("../../shared/types").Plugin>} DependentPlugin */
module.exports = { ConfigDependency };
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/**
* @fileoverview `ExtractedConfig` class.
*
* `ExtractedConfig` class expresses a final configuration for a specific file.
*
* It provides one method.
*
* - `toCompatibleObjectAsConfigFileContent()`
* Convert this configuration to the compatible object as the content of
* config files. It converts the loaded parser and plugins to strings.
* `CLIEngine#getConfigForFile(filePath)` method uses this method.
*
* `ConfigArray#extractConfig(filePath)` creates a `ExtractedConfig` instance.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
"use strict";
const { IgnorePattern } = require("./ignore-pattern");
// For VSCode intellisense
/** @typedef {import("../../shared/types").ConfigData} ConfigData */
/** @typedef {import("../../shared/types").GlobalConf} GlobalConf */
/** @typedef {import("../../shared/types").SeverityConf} SeverityConf */
/** @typedef {import("./config-dependency").DependentParser} DependentParser */
/** @typedef {import("./config-dependency").DependentPlugin} DependentPlugin */
/**
* Check if `xs` starts with `ys`.
* @template T
* @param {T[]} xs The array to check.
* @param {T[]} ys The array that may be the first part of `xs`.
* @returns {boolean} `true` if `xs` starts with `ys`.
*/
function startsWith(xs, ys) {
return xs.length >= ys.length && ys.every((y, i) => y === xs[i]);
}
/**
* The class for extracted config data.
*/
class ExtractedConfig {
constructor() {
/**
* The config name what `noInlineConfig` setting came from.
* @type {string}
*/
this.configNameOfNoInlineConfig = "";
/**
* Environments.
* @type {Record<string, boolean>}
*/
this.env = {};
/**
* Global variables.
* @type {Record<string, GlobalConf>}
*/
this.globals = {};
/**
* The glob patterns that ignore to lint.
* @type {(((filePath:string, dot?:boolean) => boolean) & { basePath:string; patterns:string[] }) | undefined}
*/
this.ignores = void 0;
/**
* The flag that disables directive comments.
* @type {boolean|undefined}
*/
this.noInlineConfig = void 0;
/**
* Parser definition.
* @type {DependentParser|null}
*/
this.parser = null;
/**
* Options for the parser.
* @type {Object}
*/
this.parserOptions = {};
/**
* Plugin definitions.
* @type {Record<string, DependentPlugin>}
*/
this.plugins = {};
/**
* Processor ID.
* @type {string|null}
*/
this.processor = null;
/**
* The flag that reports unused `eslint-disable` directive comments.
* @type {boolean|undefined}
*/
this.reportUnusedDisableDirectives = void 0;
/**
* Rule settings.
* @type {Record<string, [SeverityConf, ...any[]]>}
*/
this.rules = {};
/**
* Shared settings.
* @type {Object}
*/
this.settings = {};
}
/**
* Convert this config to the compatible object as a config file content.
* @returns {ConfigData} The converted object.
*/
toCompatibleObjectAsConfigFileContent() {
const {
/* eslint-disable no-unused-vars */
configNameOfNoInlineConfig: _ignore1,
processor: _ignore2,
/* eslint-enable no-unused-vars */
ignores,
...config
} = this;
config.parser = config.parser && config.parser.filePath;
config.plugins = Object.keys(config.plugins).filter(Boolean).reverse();
config.ignorePatterns = ignores ? ignores.patterns : [];
// Strip the default patterns from `ignorePatterns`.
if (startsWith(config.ignorePatterns, IgnorePattern.DefaultPatterns)) {
config.ignorePatterns =
config.ignorePatterns.slice(IgnorePattern.DefaultPatterns.length);
}
return config;
}
}
module.exports = { ExtractedConfig };
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/**
* @fileoverview `IgnorePattern` class.
*
* `IgnorePattern` class has the set of glob patterns and the base path.
*
* It provides two static methods.
*
* - `IgnorePattern.createDefaultIgnore(cwd)`
* Create the default predicate function.
* - `IgnorePattern.createIgnore(ignorePatterns)`
* Create the predicate function from multiple `IgnorePattern` objects.
*
* It provides two properties and a method.
*
* - `patterns`
* The glob patterns that ignore to lint.
* - `basePath`
* The base path of the glob patterns. If absolute paths existed in the
* glob patterns, those are handled as relative paths to the base path.
* - `getPatternsRelativeTo(basePath)`
* Get `patterns` as modified for a given base path. It modifies the
* absolute paths in the patterns as prepending the difference of two base
* paths.
*
* `ConfigArrayFactory` creates `IgnorePattern` objects when it processes
* `ignorePatterns` properties.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const assert = require("assert");
const path = require("path");
const ignore = require("ignore");
const debug = require("debug")("eslintrc:ignore-pattern");
/** @typedef {ReturnType<import("ignore").default>} Ignore */
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
/**
* Get the path to the common ancestor directory of given paths.
* @param {string[]} sourcePaths The paths to calculate the common ancestor.
* @returns {string} The path to the common ancestor directory.
*/
function getCommonAncestorPath(sourcePaths) {
let result = sourcePaths[0];
for (let i = 1; i < sourcePaths.length; ++i) {
const a = result;
const b = sourcePaths[i];
// Set the shorter one (it's the common ancestor if one includes the other).
result = a.length < b.length ? a : b;
// Set the common ancestor.
for (let j = 0, lastSepPos = 0; j < a.length && j < b.length; ++j) {
if (a[j] !== b[j]) {
result = a.slice(0, lastSepPos);
break;
}
if (a[j] === path.sep) {
lastSepPos = j;
}
}
}
let resolvedResult = result || path.sep;
// if Windows common ancestor is root of drive must have trailing slash to be absolute.
if (resolvedResult && resolvedResult.endsWith(":") && process.platform === "win32") {
resolvedResult += path.sep;
}
return resolvedResult;
}
/**
* Make relative path.
* @param {string} from The source path to get relative path.
* @param {string} to The destination path to get relative path.
* @returns {string} The relative path.
*/
function relative(from, to) {
const relPath = path.relative(from, to);
if (path.sep === "/") {
return relPath;
}
return relPath.split(path.sep).join("/");
}
/**
* Get the trailing slash if existed.
* @param {string} filePath The path to check.
* @returns {string} The trailing slash if existed.
*/
function dirSuffix(filePath) {
const isDir = (
filePath.endsWith(path.sep) ||
(process.platform === "win32" && filePath.endsWith("/"))
);
return isDir ? "/" : "";
}
const DefaultPatterns = Object.freeze(["/**/node_modules/*"]);
const DotPatterns = Object.freeze([".*", "!.eslintrc.*", "!../"]);
//------------------------------------------------------------------------------
// Public
//------------------------------------------------------------------------------
class IgnorePattern {
/**
* The default patterns.
* @type {string[]}
*/
static get DefaultPatterns() {
return DefaultPatterns;
}
/**
* Create the default predicate function.
* @param {string} cwd The current working directory.
* @returns {((filePath:string, dot:boolean) => boolean) & {basePath:string; patterns:string[]}}
* The preficate function.
* The first argument is an absolute path that is checked.
* The second argument is the flag to not ignore dotfiles.
* If the predicate function returned `true`, it means the path should be ignored.
*/
static createDefaultIgnore(cwd) {
return this.createIgnore([new IgnorePattern(DefaultPatterns, cwd)]);
}
/**
* Create the predicate function from multiple `IgnorePattern` objects.
* @param {IgnorePattern[]} ignorePatterns The list of ignore patterns.
* @returns {((filePath:string, dot?:boolean) => boolean) & {basePath:string; patterns:string[]}}
* The preficate function.
* The first argument is an absolute path that is checked.
* The second argument is the flag to not ignore dotfiles.
* If the predicate function returned `true`, it means the path should be ignored.
*/
static createIgnore(ignorePatterns) {
debug("Create with: %o", ignorePatterns);
const basePath = getCommonAncestorPath(ignorePatterns.map(p => p.basePath));
const patterns = [].concat(
...ignorePatterns.map(p => p.getPatternsRelativeTo(basePath))
);
const ig = ignore().add([...DotPatterns, ...patterns]);
const dotIg = ignore().add(patterns);
debug(" processed: %o", { basePath, patterns });
return Object.assign(
(filePath, dot = false) => {
assert(path.isAbsolute(filePath), "'filePath' should be an absolute path.");
const relPathRaw = relative(basePath, filePath);
const relPath = relPathRaw && (relPathRaw + dirSuffix(filePath));
const adoptedIg = dot ? dotIg : ig;
const result = relPath !== "" && adoptedIg.ignores(relPath);
debug("Check", { filePath, dot, relativePath: relPath, result });
return result;
},
{ basePath, patterns }
);
}
/**
* Initialize a new `IgnorePattern` instance.
* @param {string[]} patterns The glob patterns that ignore to lint.
* @param {string} basePath The base path of `patterns`.
*/
constructor(patterns, basePath) {
assert(path.isAbsolute(basePath), "'basePath' should be an absolute path.");
/**
* The glob patterns that ignore to lint.
* @type {string[]}
*/
this.patterns = patterns;
/**
* The base path of `patterns`.
* @type {string}
*/
this.basePath = basePath;
/**
* If `true` then patterns which don't start with `/` will match the paths to the outside of `basePath`. Defaults to `false`.
*
* It's set `true` for `.eslintignore`, `package.json`, and `--ignore-path` for backward compatibility.
* It's `false` as-is for `ignorePatterns` property in config files.
* @type {boolean}
*/
this.loose = false;
}
/**
* Get `patterns` as modified for a given base path. It modifies the
* absolute paths in the patterns as prepending the difference of two base
* paths.
* @param {string} newBasePath The base path.
* @returns {string[]} Modifired patterns.
*/
getPatternsRelativeTo(newBasePath) {
assert(path.isAbsolute(newBasePath), "'newBasePath' should be an absolute path.");
const { basePath, loose, patterns } = this;
if (newBasePath === basePath) {
return patterns;
}
const prefix = `/${relative(newBasePath, basePath)}`;
return patterns.map(pattern => {
const negative = pattern.startsWith("!");
const head = negative ? "!" : "";
const body = negative ? pattern.slice(1) : pattern;
if (body.startsWith("/") || body.startsWith("../")) {
return `${head}${prefix}${body}`;
}
return loose ? pattern : `${head}${prefix}/**/${body}`;
});
}
}
module.exports = { IgnorePattern };
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/**
* @fileoverview `ConfigArray` class.
* @author Toru Nagashima <https://github.com/mysticatea>
*/
"use strict";
const { ConfigArray, getUsedExtractedConfigs } = require("./config-array");
const { ConfigDependency } = require("./config-dependency");
const { ExtractedConfig } = require("./extracted-config");
const { IgnorePattern } = require("./ignore-pattern");
const { OverrideTester } = require("./override-tester");
module.exports = {
ConfigArray,
ConfigDependency,
ExtractedConfig,
IgnorePattern,
OverrideTester,
getUsedExtractedConfigs
};
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/**
* @fileoverview `OverrideTester` class.
*
* `OverrideTester` class handles `files` property and `excludedFiles` property
* of `overrides` config.
*
* It provides one method.
*
* - `test(filePath)`
* Test if a file path matches the pair of `files` property and
* `excludedFiles` property. The `filePath` argument must be an absolute
* path.
*
* `ConfigArrayFactory` creates `OverrideTester` objects when it processes
* `overrides` properties.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
"use strict";
const assert = require("assert");
const path = require("path");
const util = require("util");
const { Minimatch } = require("minimatch");
const minimatchOpts = { dot: true, matchBase: true };
/**
* @typedef {Object} Pattern
* @property {InstanceType<Minimatch>[] | null} includes The positive matchers.
* @property {InstanceType<Minimatch>[] | null} excludes The negative matchers.
*/
/**
* Normalize a given pattern to an array.
* @param {string|string[]|undefined} patterns A glob pattern or an array of glob patterns.
* @returns {string[]|null} Normalized patterns.
* @private
*/
function normalizePatterns(patterns) {
if (Array.isArray(patterns)) {
return patterns.filter(Boolean);
}
if (typeof patterns === "string" && patterns) {
return [patterns];
}
return [];
}
/**
* Create the matchers of given patterns.
* @param {string[]} patterns The patterns.
* @returns {InstanceType<Minimatch>[] | null} The matchers.
*/
function toMatcher(patterns) {
if (patterns.length === 0) {
return null;
}
return patterns.map(pattern => {
if (/^\.[/\\]/u.test(pattern)) {
return new Minimatch(
pattern.slice(2),
// `./*.js` should not match with `subdir/foo.js`
{ ...minimatchOpts, matchBase: false }
);
}
return new Minimatch(pattern, minimatchOpts);
});
}
/**
* Convert a given matcher to string.
* @param {Pattern} matchers The matchers.
* @returns {string} The string expression of the matcher.
*/
function patternToJson({ includes, excludes }) {
return {
includes: includes && includes.map(m => m.pattern),
excludes: excludes && excludes.map(m => m.pattern)
};
}
/**
* The class to test given paths are matched by the patterns.
*/
class OverrideTester {
/**
* Create a tester with given criteria.
* If there are no criteria, returns `null`.
* @param {string|string[]} files The glob patterns for included files.
* @param {string|string[]} excludedFiles The glob patterns for excluded files.
* @param {string} basePath The path to the base directory to test paths.
* @returns {OverrideTester|null} The created instance or `null`.
*/
static create(files, excludedFiles, basePath) {
const includePatterns = normalizePatterns(files);
const excludePatterns = normalizePatterns(excludedFiles);
let endsWithWildcard = false;
if (includePatterns.length === 0) {
return null;
}
// Rejects absolute paths or relative paths to parents.
for (const pattern of includePatterns) {
if (path.isAbsolute(pattern) || pattern.includes("..")) {
throw new Error(`Invalid override pattern (expected relative path not containing '..'): ${pattern}`);
}
if (pattern.endsWith("*")) {
endsWithWildcard = true;
}
}
for (const pattern of excludePatterns) {
if (path.isAbsolute(pattern) || pattern.includes("..")) {
throw new Error(`Invalid override pattern (expected relative path not containing '..'): ${pattern}`);
}
}
const includes = toMatcher(includePatterns);
const excludes = toMatcher(excludePatterns);
return new OverrideTester(
[{ includes, excludes }],
basePath,
endsWithWildcard
);
}
/**
* Combine two testers by logical and.
* If either of the testers was `null`, returns the other tester.
* The `basePath` property of the two must be the same value.
* @param {OverrideTester|null} a A tester.
* @param {OverrideTester|null} b Another tester.
* @returns {OverrideTester|null} Combined tester.
*/
static and(a, b) {
if (!b) {
return a && new OverrideTester(
a.patterns,
a.basePath,
a.endsWithWildcard
);
}
if (!a) {
return new OverrideTester(
b.patterns,
b.basePath,
b.endsWithWildcard
);
}
assert.strictEqual(a.basePath, b.basePath);
return new OverrideTester(
a.patterns.concat(b.patterns),
a.basePath,
a.endsWithWildcard || b.endsWithWildcard
);
}
/**
* Initialize this instance.
* @param {Pattern[]} patterns The matchers.
* @param {string} basePath The base path.
* @param {boolean} endsWithWildcard If `true` then a pattern ends with `*`.
*/
constructor(patterns, basePath, endsWithWildcard = false) {
/** @type {Pattern[]} */
this.patterns = patterns;
/** @type {string} */
this.basePath = basePath;
/** @type {boolean} */
this.endsWithWildcard = endsWithWildcard;
}
/**
* Test if a given path is matched or not.
* @param {string} filePath The absolute path to the target file.
* @returns {boolean} `true` if the path was matched.
*/
test(filePath) {
if (typeof filePath !== "string" || !path.isAbsolute(filePath)) {
throw new Error(`'filePath' should be an absolute path, but got ${filePath}.`);
}
const relativePath = path.relative(this.basePath, filePath);
return this.patterns.every(({ includes, excludes }) => (
(!includes || includes.some(m => m.match(relativePath))) &&
(!excludes || !excludes.some(m => m.match(relativePath)))
));
}
// eslint-disable-next-line jsdoc/require-description
/**
* @returns {Object} a JSON compatible object.
*/
toJSON() {
if (this.patterns.length === 1) {
return {
...patternToJson(this.patterns[0]),
basePath: this.basePath
};
}
return {
AND: this.patterns.map(patternToJson),
basePath: this.basePath
};
}
// eslint-disable-next-line jsdoc/require-description
/**
* @returns {Object} an object to display by `console.log()`.
*/
[util.inspect.custom]() {
return this.toJSON();
}
}
module.exports = { OverrideTester };
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/**
* @fileoverview Compatibility class for flat config.
* @author Nicholas C. Zakas
*/
"use strict";
//-----------------------------------------------------------------------------
// Requirements
//-----------------------------------------------------------------------------
const path = require("path");
const environments = require("../conf/environments");
const createDebug = require("debug");
const { ConfigArrayFactory } = require("./config-array-factory");
//-----------------------------------------------------------------------------
// Helpers
//-----------------------------------------------------------------------------
/** @typedef {import("../../shared/types").Environment} Environment */
/** @typedef {import("../../shared/types").Processor} Processor */
const debug = createDebug("eslintrc:flat-compat");
const cafactory = Symbol("cafactory");
/**
* Translates an ESLintRC-style config object into a flag-config-style config
* object.
* @param {Object} eslintrcConfig An ESLintRC-style config object.
* @param {Object} options Options to help translate the config.
* @param {string} options.resolveConfigRelativeTo To the directory to resolve
* configs from.
* @param {string} options.resolvePluginsRelativeTo The directory to resolve
* plugins from.
* @param {ReadOnlyMap<string,Environment>} options.pluginEnvironments A map of plugin environment
* names to objects.
* @param {ReadOnlyMap<string,Processor>} options.pluginProcessors A map of plugin processor
* names to objects.
* @returns {Object} A flag-config-style config object.
*/
function translateESLintRC(eslintrcConfig, {
resolveConfigRelativeTo,
resolvePluginsRelativeTo,
pluginEnvironments,
pluginProcessors
}) {
const flatConfig = {};
const configs = [];
const languageOptions = {};
const linterOptions = {};
const keysToCopy = ["settings", "rules", "processor"];
const languageOptionsKeysToCopy = ["globals", "parser", "parserOptions"];
const linterOptionsKeysToCopy = ["noInlineConfig", "reportUnusedDisableDirectives"];
// check for special settings for eslint:all and eslint:recommended:
if (eslintrcConfig.settings) {
if (eslintrcConfig.settings["eslint:all"] === true) {
return ["eslint:all"];
}
if (eslintrcConfig.settings["eslint:recommended"] === true) {
return ["eslint:recommended"];
}
}
// copy over simple translations
for (const key of keysToCopy) {
if (key in eslintrcConfig && typeof eslintrcConfig[key] !== "undefined") {
flatConfig[key] = eslintrcConfig[key];
}
}
// copy over languageOptions
for (const key of languageOptionsKeysToCopy) {
if (key in eslintrcConfig && typeof eslintrcConfig[key] !== "undefined") {
// create the languageOptions key in the flat config
flatConfig.languageOptions = languageOptions;
if (key === "parser") {
debug(`Resolving parser '${languageOptions[key]}' relative to ${resolveConfigRelativeTo}`);
if (eslintrcConfig[key].error) {
throw eslintrcConfig[key].error;
}
languageOptions[key] = eslintrcConfig[key].definition;
continue;
}
// clone any object values that are in the eslintrc config
if (eslintrcConfig[key] && typeof eslintrcConfig[key] === "object") {
languageOptions[key] = {
...eslintrcConfig[key]
};
} else {
languageOptions[key] = eslintrcConfig[key];
}
}
}
// copy over linterOptions
for (const key of linterOptionsKeysToCopy) {
if (key in eslintrcConfig && typeof eslintrcConfig[key] !== "undefined") {
flatConfig.linterOptions = linterOptions;
linterOptions[key] = eslintrcConfig[key];
}
}
// move ecmaVersion a level up
if (languageOptions.parserOptions) {
if ("ecmaVersion" in languageOptions.parserOptions) {
languageOptions.ecmaVersion = languageOptions.parserOptions.ecmaVersion;
delete languageOptions.parserOptions.ecmaVersion;
}
if ("sourceType" in languageOptions.parserOptions) {
languageOptions.sourceType = languageOptions.parserOptions.sourceType;
delete languageOptions.parserOptions.sourceType;
}
// check to see if we even need parserOptions anymore and remove it if not
if (Object.keys(languageOptions.parserOptions).length === 0) {
delete languageOptions.parserOptions;
}
}
// overrides
if (eslintrcConfig.criteria) {
flatConfig.files = [absoluteFilePath => eslintrcConfig.criteria.test(absoluteFilePath)];
}
// translate plugins
if (eslintrcConfig.plugins && typeof eslintrcConfig.plugins === "object") {
debug(`Translating plugins: ${eslintrcConfig.plugins}`);
flatConfig.plugins = {};
for (const pluginName of Object.keys(eslintrcConfig.plugins)) {
debug(`Translating plugin: ${pluginName}`);
debug(`Resolving plugin '${pluginName} relative to ${resolvePluginsRelativeTo}`);
const { definition: plugin, error } = eslintrcConfig.plugins[pluginName];
if (error) {
throw error;
}
flatConfig.plugins[pluginName] = plugin;
// create a config for any processors
if (plugin.processors) {
for (const processorName of Object.keys(plugin.processors)) {
if (processorName.startsWith(".")) {
debug(`Assigning processor: ${pluginName}/${processorName}`);
configs.unshift({
files: [`**/*${processorName}`],
processor: pluginProcessors.get(`${pluginName}/${processorName}`)
});
}
}
}
}
}
// translate env - must come after plugins
if (eslintrcConfig.env && typeof eslintrcConfig.env === "object") {
for (const envName of Object.keys(eslintrcConfig.env)) {
// only add environments that are true
if (eslintrcConfig.env[envName]) {
debug(`Translating environment: ${envName}`);
if (environments.has(envName)) {
// built-in environments should be defined first
configs.unshift(...translateESLintRC(environments.get(envName), {
resolveConfigRelativeTo,
resolvePluginsRelativeTo
}));
} else if (pluginEnvironments.has(envName)) {
// if the environment comes from a plugin, it should come after the plugin config
configs.push(...translateESLintRC(pluginEnvironments.get(envName), {
resolveConfigRelativeTo,
resolvePluginsRelativeTo
}));
}
}
}
}
// only add if there are actually keys in the config
if (Object.keys(flatConfig).length > 0) {
configs.push(flatConfig);
}
return configs;
}
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
/**
* A compatibility class for working with configs.
*/
class FlatCompat {
constructor({
baseDirectory = process.cwd(),
resolvePluginsRelativeTo = baseDirectory
} = {}) {
this.baseDirectory = baseDirectory;
this.resolvePluginsRelativeTo = resolvePluginsRelativeTo;
this[cafactory] = new ConfigArrayFactory({
cwd: baseDirectory,
resolvePluginsRelativeTo,
eslintAllPath: path.resolve(__dirname, "../conf/eslint-all.js"),
eslintRecommendedPath: path.resolve(__dirname, "../conf/eslint-recommended.js")
});
}
/**
* Translates an ESLintRC-style config into a flag-config-style config.
* @param {Object} eslintrcConfig The ESLintRC-style config object.
* @returns {Object} A flag-config-style config object.
*/
config(eslintrcConfig) {
const eslintrcArray = this[cafactory].create(eslintrcConfig, {
basePath: this.baseDirectory
});
const flatArray = [];
let hasIgnorePatterns = false;
eslintrcArray.forEach(configData => {
if (configData.type === "config") {
hasIgnorePatterns = hasIgnorePatterns || configData.ignorePattern;
flatArray.push(...translateESLintRC(configData, {
resolveConfigRelativeTo: path.join(this.baseDirectory, "__placeholder.js"),
resolvePluginsRelativeTo: path.join(this.resolvePluginsRelativeTo, "__placeholder.js"),
pluginEnvironments: eslintrcArray.pluginEnvironments,
pluginProcessors: eslintrcArray.pluginProcessors
}));
}
});
// combine ignorePatterns to emulate ESLintRC behavior better
if (hasIgnorePatterns) {
flatArray.unshift({
ignores: [filePath => {
// Compute the final config for this file.
// This filters config array elements by `files`/`excludedFiles` then merges the elements.
const finalConfig = eslintrcArray.extractConfig(filePath);
// Test the `ignorePattern` properties of the final config.
return Boolean(finalConfig.ignores) && finalConfig.ignores(filePath);
}]
});
}
return flatArray;
}
/**
* Translates the `env` section of an ESLintRC-style config.
* @param {Object} envConfig The `env` section of an ESLintRC config.
* @returns {Object} A flag-config object representing the environments.
*/
env(envConfig) {
return this.config({
env: envConfig
});
}
/**
* Translates the `extends` section of an ESLintRC-style config.
* @param {...string} configsToExtend The names of the configs to load.
* @returns {Object} A flag-config object representing the config.
*/
extends(...configsToExtend) {
return this.config({
extends: configsToExtend
});
}
/**
* Translates the `plugins` section of an ESLintRC-style config.
* @param {...string} plugins The names of the plugins to load.
* @returns {Object} A flag-config object representing the plugins.
*/
plugins(...plugins) {
return this.config({
plugins
});
}
}
exports.FlatCompat = FlatCompat;
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/**
* @fileoverview Package exports for @eslint/eslintrc
* @author Nicholas C. Zakas
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const {
ConfigArrayFactory,
createContext: createConfigArrayFactoryContext
} = require("./config-array-factory");
const { CascadingConfigArrayFactory } = require("./cascading-config-array-factory");
const ModuleResolver = require("./shared/relative-module-resolver");
const { ConfigArray, getUsedExtractedConfigs } = require("./config-array");
const { ConfigDependency } = require("./config-array/config-dependency");
const { ExtractedConfig } = require("./config-array/extracted-config");
const { IgnorePattern } = require("./config-array/ignore-pattern");
const { OverrideTester } = require("./config-array/override-tester");
const ConfigOps = require("./shared/config-ops");
const ConfigValidator = require("./shared/config-validator");
const naming = require("./shared/naming");
const { FlatCompat } = require("./flat-compat");
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
module.exports = {
Legacy: {
ConfigArray,
createConfigArrayFactoryContext,
CascadingConfigArrayFactory,
ConfigArrayFactory,
ConfigDependency,
ExtractedConfig,
IgnorePattern,
OverrideTester,
getUsedExtractedConfigs,
// shared
ConfigOps,
ConfigValidator,
ModuleResolver,
naming
},
FlatCompat
};
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/**
* @fileoverview The instance of Ajv validator.
* @author Evgeny Poberezkin
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const Ajv = require("ajv"),
metaSchema = require("ajv/lib/refs/json-schema-draft-04.json");
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
module.exports = (additionalOptions = {}) => {
const ajv = new Ajv({
meta: false,
useDefaults: true,
validateSchema: false,
missingRefs: "ignore",
verbose: true,
schemaId: "auto",
...additionalOptions
});
ajv.addMetaSchema(metaSchema);
// eslint-disable-next-line no-underscore-dangle
ajv._opts.defaultMeta = metaSchema.id;
return ajv;
};
node_modules/@eslint/eslintrc/lib/shared/config-ops.js deleted 100644 → 0
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/**
* @fileoverview Config file operations. This file must be usable in the browser,
* so no Node-specific code can be here.
* @author Nicholas C. Zakas
*/
"use strict";
//------------------------------------------------------------------------------
// Private
//------------------------------------------------------------------------------
const RULE_SEVERITY_STRINGS = ["off", "warn", "error"],
RULE_SEVERITY = RULE_SEVERITY_STRINGS.reduce((map, value, index) => {
map[value] = index;
return map;
}, {}),
VALID_SEVERITIES = [0, 1, 2, "off", "warn", "error"];
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
module.exports = {
/**
* Normalizes the severity value of a rule's configuration to a number
* @param {(number|string|[number, ...*]|[string, ...*])} ruleConfig A rule's configuration value, generally
* received from the user. A valid config value is either 0, 1, 2, the string "off" (treated the same as 0),
* the string "warn" (treated the same as 1), the string "error" (treated the same as 2), or an array
* whose first element is one of the above values. Strings are matched case-insensitively.
* @returns {(0|1|2)} The numeric severity value if the config value was valid, otherwise 0.
*/
getRuleSeverity(ruleConfig) {
const severityValue = Array.isArray(ruleConfig) ? ruleConfig[0] : ruleConfig;
if (severityValue === 0 || severityValue === 1 || severityValue === 2) {
return severityValue;
}
if (typeof severityValue === "string") {
return RULE_SEVERITY[severityValue.toLowerCase()] || 0;
}
return 0;
},
/**
* Converts old-style severity settings (0, 1, 2) into new-style
* severity settings (off, warn, error) for all rules. Assumption is that severity
* values have already been validated as correct.
* @param {Object} config The config object to normalize.
* @returns {void}
*/
normalizeToStrings(config) {
if (config.rules) {
Object.keys(config.rules).forEach(ruleId => {
const ruleConfig = config.rules[ruleId];
if (typeof ruleConfig === "number") {
config.rules[ruleId] = RULE_SEVERITY_STRINGS[ruleConfig] || RULE_SEVERITY_STRINGS[0];
} else if (Array.isArray(ruleConfig) && typeof ruleConfig[0] === "number") {
ruleConfig[0] = RULE_SEVERITY_STRINGS[ruleConfig[0]] || RULE_SEVERITY_STRINGS[0];
}
});
}
},
/**
* Determines if the severity for the given rule configuration represents an error.
* @param {int|string|Array} ruleConfig The configuration for an individual rule.
* @returns {boolean} True if the rule represents an error, false if not.
*/
isErrorSeverity(ruleConfig) {
return module.exports.getRuleSeverity(ruleConfig) === 2;
},
/**
* Checks whether a given config has valid severity or not.
* @param {number|string|Array} ruleConfig The configuration for an individual rule.
* @returns {boolean} `true` if the configuration has valid severity.
*/
isValidSeverity(ruleConfig) {
let severity = Array.isArray(ruleConfig) ? ruleConfig[0] : ruleConfig;
if (typeof severity === "string") {
severity = severity.toLowerCase();
}
return VALID_SEVERITIES.indexOf(severity) !== -1;
},
/**
* Checks whether every rule of a given config has valid severity or not.
* @param {Object} config The configuration for rules.
* @returns {boolean} `true` if the configuration has valid severity.
*/
isEverySeverityValid(config) {
return Object.keys(config).every(ruleId => this.isValidSeverity(config[ruleId]));
},
/**
* Normalizes a value for a global in a config
* @param {(boolean|string|null)} configuredValue The value given for a global in configuration or in
* a global directive comment
* @returns {("readable"|"writeable"|"off")} The value normalized as a string
* @throws Error if global value is invalid
*/
normalizeConfigGlobal(configuredValue) {
switch (configuredValue) {
case "off":
return "off";
case true:
case "true":
case "writeable":
case "writable":
return "writable";
case null:
case false:
case "false":
case "readable":
case "readonly":
return "readonly";
default:
throw new Error(`'${configuredValue}' is not a valid configuration for a global (use 'readonly', 'writable', or 'off')`);
}
}
};
node_modules/@eslint/eslintrc/lib/shared/config-validator.js deleted 100644 → 0
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/**
* @fileoverview Validates configs.
* @author Brandon Mills
*/
"use strict";
/* eslint class-methods-use-this: "off" */
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const
util = require("util"),
configSchema = require("../../conf/config-schema"),
BuiltInEnvironments = require("../../conf/environments"),
ConfigOps = require("./config-ops"),
{ emitDeprecationWarning } = require("./deprecation-warnings");
const ajv = require("./ajv")();
const ruleValidators = new WeakMap();
const noop = Function.prototype;
//------------------------------------------------------------------------------
// Private
//------------------------------------------------------------------------------
let validateSchema;
const severityMap = {
error: 2,
warn: 1,
off: 0
};
const validated = new WeakSet();
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
module.exports = class ConfigValidator {
constructor({ builtInRules = new Map() } = {}) {
this.builtInRules = builtInRules;
}
/**
* Gets a complete options schema for a rule.
* @param {{create: Function, schema: (Array|null)}} rule A new-style rule object
* @returns {Object} JSON Schema for the rule's options.
*/
getRuleOptionsSchema(rule) {
if (!rule) {
return null;
}
const schema = rule.schema || rule.meta && rule.meta.schema;
// Given a tuple of schemas, insert warning level at the beginning
if (Array.isArray(schema)) {
if (schema.length) {
return {
type: "array",
items: schema,
minItems: 0,
maxItems: schema.length
};
}
return {
type: "array",
minItems: 0,
maxItems: 0
};
}
// Given a full schema, leave it alone
return schema || null;
}
/**
* Validates a rule's severity and returns the severity value. Throws an error if the severity is invalid.
* @param {options} options The given options for the rule.
* @returns {number|string} The rule's severity value
*/
validateRuleSeverity(options) {
const severity = Array.isArray(options) ? options[0] : options;
const normSeverity = typeof severity === "string" ? severityMap[severity.toLowerCase()] : severity;
if (normSeverity === 0 || normSeverity === 1 || normSeverity === 2) {
return normSeverity;
}
throw new Error(`\tSeverity should be one of the following: 0 = off, 1 = warn, 2 = error (you passed '${util.inspect(severity).replace(/'/gu, "\"").replace(/\n/gu, "")}').\n`);
}
/**
* Validates the non-severity options passed to a rule, based on its schema.
* @param {{create: Function}} rule The rule to validate
* @param {Array} localOptions The options for the rule, excluding severity
* @returns {void}
*/
validateRuleSchema(rule, localOptions) {
if (!ruleValidators.has(rule)) {
const schema = this.getRuleOptionsSchema(rule);
if (schema) {
ruleValidators.set(rule, ajv.compile(schema));
}
}
const validateRule = ruleValidators.get(rule);
if (validateRule) {
validateRule(localOptions);
if (validateRule.errors) {
throw new Error(validateRule.errors.map(
error => `\tValue ${JSON.stringify(error.data)} ${error.message}.\n`
).join(""));
}
}
}
/**
* Validates a rule's options against its schema.
* @param {{create: Function}|null} rule The rule that the config is being validated for
* @param {string} ruleId The rule's unique name.
* @param {Array|number} options The given options for the rule.
* @param {string|null} source The name of the configuration source to report in any errors. If null or undefined,
* no source is prepended to the message.
* @returns {void}
*/
validateRuleOptions(rule, ruleId, options, source = null) {
try {
const severity = this.validateRuleSeverity(options);
if (severity !== 0) {
this.validateRuleSchema(rule, Array.isArray(options) ? options.slice(1) : []);
}
} catch (err) {
const enhancedMessage = `Configuration for rule "${ruleId}" is invalid:\n${err.message}`;
if (typeof source === "string") {
throw new Error(`${source}:\n\t${enhancedMessage}`);
} else {
throw new Error(enhancedMessage);
}
}
}
/**
* Validates an environment object
* @param {Object} environment The environment config object to validate.
* @param {string} source The name of the configuration source to report in any errors.
* @param {function(envId:string): Object} [getAdditionalEnv] A map from strings to loaded environments.
* @returns {void}
*/
validateEnvironment(
environment,
source,
getAdditionalEnv = noop
) {
// not having an environment is ok
if (!environment) {
return;
}
Object.keys(environment).forEach(id => {
const env = getAdditionalEnv(id) || BuiltInEnvironments.get(id) || null;
if (!env) {
const message = `${source}:\n\tEnvironment key "${id}" is unknown\n`;
throw new Error(message);
}
});
}
/**
* Validates a rules config object
* @param {Object} rulesConfig The rules config object to validate.
* @param {string} source The name of the configuration source to report in any errors.
* @param {function(ruleId:string): Object} getAdditionalRule A map from strings to loaded rules
* @returns {void}
*/
validateRules(
rulesConfig,
source,
getAdditionalRule = noop
) {
if (!rulesConfig) {
return;
}
Object.keys(rulesConfig).forEach(id => {
const rule = getAdditionalRule(id) || this.builtInRules.get(id) || null;
this.validateRuleOptions(rule, id, rulesConfig[id], source);
});
}
/**
* Validates a `globals` section of a config file
* @param {Object} globalsConfig The `globals` section
* @param {string|null} source The name of the configuration source to report in the event of an error.
* @returns {void}
*/
validateGlobals(globalsConfig, source = null) {
if (!globalsConfig) {
return;
}
Object.entries(globalsConfig)
.forEach(([configuredGlobal, configuredValue]) => {
try {
ConfigOps.normalizeConfigGlobal(configuredValue);
} catch (err) {
throw new Error(`ESLint configuration of global '${configuredGlobal}' in ${source} is invalid:\n${err.message}`);
}
});
}
/**
* Validate `processor` configuration.
* @param {string|undefined} processorName The processor name.
* @param {string} source The name of config file.
* @param {function(id:string): Processor} getProcessor The getter of defined processors.
* @returns {void}
*/
validateProcessor(processorName, source, getProcessor) {
if (processorName && !getProcessor(processorName)) {
throw new Error(`ESLint configuration of processor in '${source}' is invalid: '${processorName}' was not found.`);
}
}
/**
* Formats an array of schema validation errors.
* @param {Array} errors An array of error messages to format.
* @returns {string} Formatted error message
*/
formatErrors(errors) {
return errors.map(error => {
if (error.keyword === "additionalProperties") {
const formattedPropertyPath = error.dataPath.length ? `${error.dataPath.slice(1)}.${error.params.additionalProperty}` : error.params.additionalProperty;
return `Unexpected top-level property "${formattedPropertyPath}"`;
}
if (error.keyword === "type") {
const formattedField = error.dataPath.slice(1);
const formattedExpectedType = Array.isArray(error.schema) ? error.schema.join("/") : error.schema;
const formattedValue = JSON.stringify(error.data);
return `Property "${formattedField}" is the wrong type (expected ${formattedExpectedType} but got \`${formattedValue}\`)`;
}
const field = error.dataPath[0] === "." ? error.dataPath.slice(1) : error.dataPath;
return `"${field}" ${error.message}. Value: ${JSON.stringify(error.data)}`;
}).map(message => `\t- ${message}.\n`).join("");
}
/**
* Validates the top level properties of the config object.
* @param {Object} config The config object to validate.
* @param {string} source The name of the configuration source to report in any errors.
* @returns {void}
*/
validateConfigSchema(config, source = null) {
validateSchema = validateSchema || ajv.compile(configSchema);
if (!validateSchema(config)) {
throw new Error(`ESLint configuration in ${source} is invalid:\n${this.formatErrors(validateSchema.errors)}`);
}
if (Object.hasOwnProperty.call(config, "ecmaFeatures")) {
emitDeprecationWarning(source, "ESLINT_LEGACY_ECMAFEATURES");
}
}
/**
* Validates an entire config object.
* @param {Object} config The config object to validate.
* @param {string} source The name of the configuration source to report in any errors.
* @param {function(ruleId:string): Object} [getAdditionalRule] A map from strings to loaded rules.
* @param {function(envId:string): Object} [getAdditionalEnv] A map from strings to loaded envs.
* @returns {void}
*/
validate(config, source, getAdditionalRule, getAdditionalEnv) {
this.validateConfigSchema(config, source);
this.validateRules(config.rules, source, getAdditionalRule);
this.validateEnvironment(config.env, source, getAdditionalEnv);
this.validateGlobals(config.globals, source);
for (const override of config.overrides || []) {
this.validateRules(override.rules, source, getAdditionalRule);
this.validateEnvironment(override.env, source, getAdditionalEnv);
this.validateGlobals(config.globals, source);
}
}
/**
* Validate config array object.
* @param {ConfigArray} configArray The config array to validate.
* @returns {void}
*/
validateConfigArray(configArray) {
const getPluginEnv = Map.prototype.get.bind(configArray.pluginEnvironments);
const getPluginProcessor = Map.prototype.get.bind(configArray.pluginProcessors);
const getPluginRule = Map.prototype.get.bind(configArray.pluginRules);
// Validate.
for (const element of configArray) {
if (validated.has(element)) {
continue;
}
validated.add(element);
this.validateEnvironment(element.env, element.name, getPluginEnv);
this.validateGlobals(element.globals, element.name);
this.validateProcessor(element.processor, element.name, getPluginProcessor);
this.validateRules(element.rules, element.name, getPluginRule);
}
}
};
node_modules/@eslint/eslintrc/lib/shared/deprecation-warnings.js deleted 100644 → 0
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/**
* @fileoverview Provide the function that emits deprecation warnings.
* @author Toru Nagashima <http://github.com/mysticatea>
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const path = require("path");
//------------------------------------------------------------------------------
// Private
//------------------------------------------------------------------------------
// Defitions for deprecation warnings.
const deprecationWarningMessages = {
ESLINT_LEGACY_ECMAFEATURES:
"The 'ecmaFeatures' config file property is deprecated and has no effect.",
ESLINT_PERSONAL_CONFIG_LOAD:
"'~/.eslintrc.*' config files have been deprecated. " +
"Please use a config file per project or the '--config' option.",
ESLINT_PERSONAL_CONFIG_SUPPRESS:
"'~/.eslintrc.*' config files have been deprecated. " +
"Please remove it or add 'root:true' to the config files in your " +
"projects in order to avoid loading '~/.eslintrc.*' accidentally."
};
const sourceFileErrorCache = new Set();
/**
* Emits a deprecation warning containing a given filepath. A new deprecation warning is emitted
* for each unique file path, but repeated invocations with the same file path have no effect.
* No warnings are emitted if the `--no-deprecation` or `--no-warnings` Node runtime flags are active.
* @param {string} source The name of the configuration source to report the warning for.
* @param {string} errorCode The warning message to show.
* @returns {void}
*/
function emitDeprecationWarning(source, errorCode) {
const cacheKey = JSON.stringify({ source, errorCode });
if (sourceFileErrorCache.has(cacheKey)) {
return;
}
sourceFileErrorCache.add(cacheKey);
const rel = path.relative(process.cwd(), source);
const message = deprecationWarningMessages[errorCode];
process.emitWarning(
`${message} (found in "${rel}")`,
"DeprecationWarning",
errorCode
);
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
module.exports = {
emitDeprecationWarning
};
node_modules/@eslint/eslintrc/lib/shared/naming.js deleted 100644 → 0
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/**
* @fileoverview Common helpers for naming of plugins, formatters and configs
*/
"use strict";
const NAMESPACE_REGEX = /^@.*\//iu;
/**
* Brings package name to correct format based on prefix
* @param {string} name The name of the package.
* @param {string} prefix Can be either "eslint-plugin", "eslint-config" or "eslint-formatter"
* @returns {string} Normalized name of the package
* @private
*/
function normalizePackageName(name, prefix) {
let normalizedName = name;
/**
* On Windows, name can come in with Windows slashes instead of Unix slashes.
* Normalize to Unix first to avoid errors later on.
* https://github.com/eslint/eslint/issues/5644
*/
if (normalizedName.includes("\\")) {
normalizedName = normalizedName.replace(/\\/gu, "/");
}
if (normalizedName.charAt(0) === "@") {
/**
* it's a scoped package
* package name is the prefix, or just a username
*/
const scopedPackageShortcutRegex = new RegExp(`^(@[^/]+)(?:/(?:${prefix})?)?$`, "u"),
scopedPackageNameRegex = new RegExp(`^${prefix}(-|$)`, "u");
if (scopedPackageShortcutRegex.test(normalizedName)) {
normalizedName = normalizedName.replace(scopedPackageShortcutRegex, `$1/${prefix}`);
} else if (!scopedPackageNameRegex.test(normalizedName.split("/")[1])) {
/**
* for scoped packages, insert the prefix after the first / unless
* the path is already @scope/eslint or @scope/eslint-xxx-yyy
*/
normalizedName = normalizedName.replace(/^@([^/]+)\/(.*)$/u, `@$1/${prefix}-$2`);
}
} else if (!normalizedName.startsWith(`${prefix}-`)) {
normalizedName = `${prefix}-${normalizedName}`;
}
return normalizedName;
}
/**
* Removes the prefix from a fullname.
* @param {string} fullname The term which may have the prefix.
* @param {string} prefix The prefix to remove.
* @returns {string} The term without prefix.
*/
function getShorthandName(fullname, prefix) {
if (fullname[0] === "@") {
let matchResult = new RegExp(`^(@[^/]+)/${prefix}$`, "u").exec(fullname);
if (matchResult) {
return matchResult[1];
}
matchResult = new RegExp(`^(@[^/]+)/${prefix}-(.+)$`, "u").exec(fullname);
if (matchResult) {
return `${matchResult[1]}/${matchResult[2]}`;
}
} else if (fullname.startsWith(`${prefix}-`)) {
return fullname.slice(prefix.length + 1);
}
return fullname;
}
/**
* Gets the scope (namespace) of a term.
* @param {string} term The term which may have the namespace.
* @returns {string} The namespace of the term if it has one.
*/
function getNamespaceFromTerm(term) {
const match = term.match(NAMESPACE_REGEX);
return match ? match[0] : "";
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
module.exports = {
normalizePackageName,
getShorthandName,
getNamespaceFromTerm
};
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