533 lines
18 KiB
JavaScript
533 lines
18 KiB
JavaScript
/**
|
|
* @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>
|
|
*/
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Requirements
|
|
//------------------------------------------------------------------------------
|
|
|
|
import debugOrig from "debug";
|
|
import os from "os";
|
|
import path from "path";
|
|
|
|
import { ConfigArrayFactory } from "./config-array-factory.js";
|
|
import {
|
|
ConfigArray,
|
|
ConfigDependency,
|
|
IgnorePattern
|
|
} from "./config-array/index.js";
|
|
import ConfigValidator from "./shared/config-validator.js";
|
|
import { emitDeprecationWarning } from "./shared/deprecation-warnings.js";
|
|
|
|
const debug = debugOrig("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 {Function} getEslintAllConfig Returns the config data for eslint:all.
|
|
* @property {string} eslintRecommendedPath The path to the definitions for eslint:recommended.
|
|
* @property {Function} getEslintRecommendedConfig Returns the config data 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 {Function} getEslintAllConfig Returns the config data for eslint:all.
|
|
* @property {string} eslintRecommendedPath The path to the definitions for eslint:recommended.
|
|
* @property {Function} getEslintRecommendedConfig Returns the config data 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,
|
|
getEslintRecommendedConfig,
|
|
eslintAllPath,
|
|
getEslintAllConfig
|
|
} = {}) {
|
|
const configArrayFactory = new ConfigArrayFactory({
|
|
additionalPluginPool,
|
|
cwd,
|
|
resolvePluginsRelativeTo,
|
|
builtInRules,
|
|
resolver,
|
|
eslintRecommendedPath,
|
|
getEslintRecommendedConfig,
|
|
eslintAllPath,
|
|
getEslintAllConfig
|
|
});
|
|
|
|
internalSlotsMap.set(this, {
|
|
baseConfigArray: createBaseConfigArray({
|
|
baseConfigData,
|
|
configArrayFactory,
|
|
cwd,
|
|
rulePaths,
|
|
loadRules
|
|
}),
|
|
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
|
|
//------------------------------------------------------------------------------
|
|
|
|
export { CascadingConfigArrayFactory };
|