| /** |
| * @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`. |
| * |
| * `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 { validateConfigSchema } = require("../shared/config-validator"); |
| const ModuleResolver = require("../shared/relative-module-resolver"); |
| const { ConfigArray, ConfigDependency, OverrideTester } = require("./config-array"); |
| const naming = require("./naming"); |
| const debug = require("debug")("eslint:config-array-factory"); |
| |
| //------------------------------------------------------------------------------ |
| // Helpers |
| //------------------------------------------------------------------------------ |
| |
| const eslintRecommendedPath = path.resolve(__dirname, "../../conf/eslint-recommended.js"); |
| const eslintAllPath = path.resolve(__dirname, "../../conf/eslint-all.js"); |
| const configFilenames = [ |
| ".eslintrc.js", |
| ".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("./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`. |
| */ |
| |
| /** |
| * @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} resolvePluginsRelativeTo An absolute path the the directory that plugins should be resolved from. |
| */ |
| |
| /** @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: ${e.message}`; |
| throw e; |
| } |
| } |
| |
| /** |
| * Creates an error to notify about a missing config to extend from. |
| * @param {string} configName The name of the missing config. |
| * @param {string} importerName The name of the config that imported the missing config |
| * @returns {Error} The error object to throw |
| * @private |
| */ |
| function configMissingError(configName, importerName) { |
| return Object.assign( |
| new Error(`Failed to load config "${configName}" to extend from.`), |
| { |
| messageTemplate: "extend-config-missing", |
| 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": |
| 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); |
| } |
| } |
| |
| /** |
| * Concatenate two config data. |
| * @param {IterableIterator<ConfigArrayElement>|null} elements The config elements. |
| * @param {ConfigArray|null} parentConfigArray The parent config array. |
| * @returns {ConfigArray} The concatenated config array. |
| */ |
| function createConfigArray(elements, parentConfigArray) { |
| if (!elements) { |
| return parentConfigArray || new ConfigArray(); |
| } |
| const configArray = new ConfigArray(...elements); |
| |
| if (parentConfigArray && !configArray.isRoot()) { |
| configArray.unshift(...parentConfigArray); |
| } |
| return configArray; |
| } |
| |
| /** |
| * 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 = cwd |
| } = {}) { |
| internalSlotsMap.set(this, { additionalPluginPool, cwd, resolvePluginsRelativeTo: path.resolve(cwd, resolvePluginsRelativeTo) }); |
| } |
| |
| /** |
| * Create `ConfigArray` instance from a config data. |
| * @param {ConfigData|null} configData The config data to create. |
| * @param {Object} [options] The options. |
| * @param {string} [options.filePath] The path to this config data. |
| * @param {string} [options.name] The config name. |
| * @param {ConfigArray} [options.parent] The parent config array. |
| * @returns {ConfigArray} Loaded config. |
| */ |
| create(configData, { filePath, name, parent } = {}) { |
| return createConfigArray( |
| configData |
| ? this._normalizeConfigData(configData, filePath, name) |
| : null, |
| parent |
| ); |
| } |
| |
| /** |
| * Load a config file. |
| * @param {string} filePath The path to a config file. |
| * @param {Object} [options] The options. |
| * @param {string} [options.name] The config name. |
| * @param {ConfigArray} [options.parent] The parent config array. |
| * @returns {ConfigArray} Loaded config. |
| */ |
| loadFile(filePath, { name, parent } = {}) { |
| const { cwd } = internalSlotsMap.get(this); |
| const absolutePath = path.resolve(cwd, filePath); |
| |
| return createConfigArray( |
| this._loadConfigData(absolutePath, name), |
| parent |
| ); |
| } |
| |
| /** |
| * 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.name] The config name. |
| * @param {ConfigArray} [options.parent] The parent config array. |
| * @returns {ConfigArray} Loaded config. An empty `ConfigArray` if any config doesn't exist. |
| */ |
| loadInDirectory(directoryPath, { name, parent } = {}) { |
| const { cwd } = internalSlotsMap.get(this); |
| const absolutePath = path.resolve(cwd, directoryPath); |
| |
| return createConfigArray( |
| this._loadConfigDataInDirectory(absolutePath, name), |
| parent |
| ); |
| } |
| |
| /** |
| * Load a given config file. |
| * @param {string} filePath The path to a config file. |
| * @param {string} name The config name. |
| * @returns {IterableIterator<ConfigArrayElement>} Loaded config. |
| * @private |
| */ |
| _loadConfigData(filePath, name) { |
| return this._normalizeConfigData( |
| loadConfigFile(filePath), |
| filePath, |
| name |
| ); |
| } |
| |
| /** |
| * Load the config file in a given directory if exists. |
| * @param {string} directoryPath The path to a directory. |
| * @param {string} name The config name. |
| * @returns {IterableIterator<ConfigArrayElement> | null} Loaded config. `null` if any config doesn't exist. |
| * @private |
| */ |
| _loadConfigDataInDirectory(directoryPath, name) { |
| for (const filename of configFilenames) { |
| const filePath = path.join(directoryPath, filename); |
| |
| if (fs.existsSync(filePath)) { |
| let configData; |
| |
| try { |
| configData = loadConfigFile(filePath); |
| } catch (error) { |
| if (!error || error.code !== "ESLINT_CONFIG_FIELD_NOT_FOUND") { |
| throw error; |
| } |
| } |
| |
| if (configData) { |
| debug(`Config file found: ${filePath}`); |
| return this._normalizeConfigData(configData, filePath, name); |
| } |
| } |
| } |
| |
| debug(`Config file not found on ${directoryPath}`); |
| return null; |
| } |
| |
| /** |
| * Normalize a given config to an array. |
| * @param {ConfigData} configData The config data to normalize. |
| * @param {string|undefined} providedFilePath The file path of this config. |
| * @param {string|undefined} providedName The name of this config. |
| * @returns {IterableIterator<ConfigArrayElement>} The normalized config. |
| * @private |
| */ |
| _normalizeConfigData(configData, providedFilePath, providedName) { |
| const { cwd } = internalSlotsMap.get(this); |
| const filePath = providedFilePath |
| ? path.resolve(cwd, providedFilePath) |
| : ""; |
| const name = providedName || (filePath && path.relative(cwd, filePath)); |
| |
| validateConfigSchema(configData, name || filePath); |
| |
| return this._normalizeObjectConfigData(configData, filePath, name); |
| } |
| |
| /** |
| * Normalize a given config to an array. |
| * @param {ConfigData|OverrideConfigData} configData The config data to normalize. |
| * @param {string} filePath The file path of this config. |
| * @param {string} name The name of this config. |
| * @returns {IterableIterator<ConfigArrayElement>} The normalized config. |
| * @private |
| */ |
| *_normalizeObjectConfigData(configData, filePath, name) { |
| const { cwd } = internalSlotsMap.get(this); |
| const { files, excludedFiles, ...configBody } = configData; |
| const basePath = filePath ? path.dirname(filePath) : cwd; |
| const criteria = OverrideTester.create(files, excludedFiles, basePath); |
| const elements = |
| this._normalizeObjectConfigDataBody(configBody, filePath, name); |
| |
| // Apply the criteria to every element. |
| for (const element of elements) { |
| |
| // Adopt the base path of the entry file (the outermost base path). |
| if (element.criteria) { |
| element.criteria.basePath = basePath; |
| } |
| |
| /* |
| * Merge the criteria; this is for only file extension processors in |
| * `overrides` section for now. |
| */ |
| 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 {string} filePath The file path of this config. |
| * @param {string} name The name of this config. |
| * @returns {IterableIterator<ConfigArrayElement>} The normalized config. |
| * @private |
| */ |
| *_normalizeObjectConfigDataBody( |
| { |
| env, |
| extends: extend, |
| globals, |
| parser: parserName, |
| parserOptions, |
| plugins: pluginList, |
| processor, |
| root, |
| rules, |
| settings, |
| overrides: overrideList = [] |
| }, |
| filePath, |
| name |
| ) { |
| const extendList = Array.isArray(extend) ? extend : [extend]; |
| |
| // Flatten `extends`. |
| for (const extendName of extendList.filter(Boolean)) { |
| yield* this._loadExtends(extendName, filePath, name); |
| } |
| |
| // Load parser & plugins. |
| const parser = |
| parserName && this._loadParser(parserName, filePath, name); |
| const plugins = |
| pluginList && this._loadPlugins(pluginList, filePath, name); |
| |
| // Yield pseudo config data for file extension processors. |
| if (plugins) { |
| yield* this._takeFileExtensionProcessors(plugins, filePath, name); |
| } |
| |
| // Yield the config data except `extends` and `overrides`. |
| yield { |
| |
| // Debug information. |
| name, |
| filePath, |
| |
| // Config data. |
| criteria: null, |
| env, |
| globals, |
| parser, |
| parserOptions, |
| plugins, |
| processor, |
| root, |
| rules, |
| settings |
| }; |
| |
| // Flatten `overries`. |
| for (let i = 0; i < overrideList.length; ++i) { |
| yield* this._normalizeObjectConfigData( |
| overrideList[i], |
| filePath, |
| `${name}#overrides[${i}]` |
| ); |
| } |
| } |
| |
| /** |
| * Load configs of an element in `extends`. |
| * @param {string} extendName The name of a base config. |
| * @param {string} importerPath The file path which has the `extends` property. |
| * @param {string} importerName The name of the config which has the `extends` property. |
| * @returns {IterableIterator<ConfigArrayElement>} The normalized config. |
| * @private |
| */ |
| _loadExtends(extendName, importerPath, importerName) { |
| debug("Loading {extends:%j} relative to %s", extendName, importerPath); |
| try { |
| if (extendName.startsWith("eslint:")) { |
| return this._loadExtendedBuiltInConfig( |
| extendName, |
| importerName |
| ); |
| } |
| if (extendName.startsWith("plugin:")) { |
| return this._loadExtendedPluginConfig( |
| extendName, |
| importerPath, |
| importerName |
| ); |
| } |
| return this._loadExtendedShareableConfig( |
| extendName, |
| importerPath, |
| importerName |
| ); |
| } catch (error) { |
| error.message += `\nReferenced from: ${importerPath || importerName}`; |
| throw error; |
| } |
| } |
| |
| /** |
| * Load configs of an element in `extends`. |
| * @param {string} extendName The name of a base config. |
| * @param {string} importerName The name of the config which has the `extends` property. |
| * @returns {IterableIterator<ConfigArrayElement>} The normalized config. |
| * @private |
| */ |
| _loadExtendedBuiltInConfig(extendName, importerName) { |
| const name = `${importerName} » ${extendName}`; |
| |
| if (extendName === "eslint:recommended") { |
| return this._loadConfigData(eslintRecommendedPath, name); |
| } |
| if (extendName === "eslint:all") { |
| return this._loadConfigData(eslintAllPath, name); |
| } |
| |
| throw configMissingError(extendName, importerName); |
| } |
| |
| /** |
| * Load configs of an element in `extends`. |
| * @param {string} extendName The name of a base config. |
| * @param {string} importerPath The file path which has the `extends` property. |
| * @param {string} importerName The name of the config which has the `extends` property. |
| * @returns {IterableIterator<ConfigArrayElement>} The normalized config. |
| * @private |
| */ |
| _loadExtendedPluginConfig(extendName, importerPath, importerName) { |
| const slashIndex = extendName.lastIndexOf("/"); |
| const pluginName = extendName.slice("plugin:".length, slashIndex); |
| const configName = extendName.slice(slashIndex + 1); |
| |
| if (isFilePath(pluginName)) { |
| throw new Error("'extends' cannot use a file path for plugins."); |
| } |
| |
| const plugin = this._loadPlugin(pluginName, importerPath, importerName); |
| const configData = |
| plugin.definition && |
| plugin.definition.configs[configName]; |
| |
| if (configData) { |
| return this._normalizeConfigData( |
| configData, |
| plugin.filePath, |
| `${importerName} » plugin:${plugin.id}/${configName}` |
| ); |
| } |
| |
| throw plugin.error || configMissingError(extendName, importerPath); |
| } |
| |
| /** |
| * Load configs of an element in `extends`. |
| * @param {string} extendName The name of a base config. |
| * @param {string} importerPath The file path which has the `extends` property. |
| * @param {string} importerName The name of the config which has the `extends` property. |
| * @returns {IterableIterator<ConfigArrayElement>} The normalized config. |
| * @private |
| */ |
| _loadExtendedShareableConfig(extendName, importerPath, importerName) { |
| const { cwd } = internalSlotsMap.get(this); |
| const relativeTo = importerPath || path.join(cwd, "__placeholder__.js"); |
| let request; |
| |
| if (isFilePath(extendName)) { |
| request = extendName; |
| } else if (extendName.startsWith(".")) { |
| request = `./${extendName}`; // For backward compatibility. A ton of tests depended on this behavior. |
| } else { |
| request = naming.normalizePackageName( |
| extendName, |
| "eslint-config" |
| ); |
| } |
| |
| let filePath; |
| |
| try { |
| filePath = ModuleResolver.resolve(request, relativeTo); |
| } catch (error) { |
| /* istanbul ignore else */ |
| if (error && error.code === "MODULE_NOT_FOUND") { |
| throw configMissingError(extendName, importerPath); |
| } |
| throw error; |
| } |
| |
| writeDebugLogForLoading(request, relativeTo, filePath); |
| return this._loadConfigData(filePath, `${importerName} » ${request}`); |
| } |
| |
| /** |
| * Load given plugins. |
| * @param {string[]} names The plugin names to load. |
| * @param {string} importerPath The path to a config file that imports it. This is just a debug info. |
| * @param {string} importerName The name of a config file that imports it. This is just a debug info. |
| * @returns {Record<string,DependentPlugin>} The loaded parser. |
| * @private |
| */ |
| _loadPlugins(names, importerPath, importerName) { |
| return names.reduce((map, name) => { |
| if (isFilePath(name)) { |
| throw new Error("Plugins array cannot includes file paths."); |
| } |
| const plugin = this._loadPlugin(name, importerPath, importerName); |
| |
| map[plugin.id] = plugin; |
| |
| return map; |
| }, {}); |
| } |
| |
| /** |
| * Load a given parser. |
| * @param {string} nameOrPath The package name or the path to a parser file. |
| * @param {string} importerPath The path to a config file that imports it. |
| * @param {string} importerName The name of a config file that imports it. This is just a debug info. |
| * @returns {DependentParser} The loaded parser. |
| */ |
| _loadParser(nameOrPath, importerPath, importerName) { |
| debug("Loading parser %j from %s", nameOrPath, importerPath); |
| |
| const { cwd } = internalSlotsMap.get(this); |
| const relativeTo = importerPath || 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, |
| importerPath |
| }); |
| } 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, |
| importerPath |
| }); |
| } |
| |
| debug("Failed to load parser '%s' declared in '%s'.", nameOrPath, importerName); |
| error.message = `Failed to load parser '${nameOrPath}' declared in '${importerName}': ${error.message}`; |
| |
| return new ConfigDependency({ |
| error, |
| id: nameOrPath, |
| importerName, |
| importerPath |
| }); |
| } |
| } |
| |
| /** |
| * Load a given plugin. |
| * @param {string} name The plugin name to load. |
| * @param {string} importerPath The path to a config file that imports it. This is just a debug info. |
| * @param {string} importerName The name of a config file that imports it. This is just a debug info. |
| * @returns {DependentPlugin} The loaded plugin. |
| * @private |
| */ |
| _loadPlugin(name, importerPath, importerName) { |
| debug("Loading plugin %j from %s", name, importerPath); |
| |
| const { additionalPluginPool, resolvePluginsRelativeTo } = internalSlotsMap.get(this); |
| const request = naming.normalizePackageName(name, "eslint-plugin"); |
| const id = naming.getShorthandName(request, "eslint-plugin"); |
| const relativeTo = path.join(resolvePluginsRelativeTo, "__placeholder__.js"); |
| |
| if (name.match(/\s+/u)) { |
| const error = Object.assign( |
| new Error(`Whitespace found in plugin name '${name}'`), |
| { |
| messageTemplate: "whitespace-found", |
| messageData: { pluginName: request } |
| } |
| ); |
| |
| return new ConfigDependency({ |
| error, |
| id, |
| importerName, |
| importerPath |
| }); |
| } |
| |
| // Check for additional pool. |
| const plugin = |
| additionalPluginPool.get(request) || |
| additionalPluginPool.get(id); |
| |
| if (plugin) { |
| return new ConfigDependency({ |
| definition: normalizePlugin(plugin), |
| filePath: importerPath, |
| id, |
| importerName, |
| importerPath |
| }); |
| } |
| |
| 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, |
| importerName |
| }; |
| } |
| } |
| |
| if (filePath) { |
| try { |
| writeDebugLogForLoading(request, relativeTo, filePath); |
| return new ConfigDependency({ |
| definition: normalizePlugin(require(filePath)), |
| filePath, |
| id, |
| importerName, |
| importerPath |
| }); |
| } catch (loadError) { |
| error = loadError; |
| } |
| } |
| |
| debug("Failed to load plugin '%s' declared in '%s'.", name, importerName); |
| error.message = `Failed to load plugin '${name}' declared in '${importerName}': ${error.message}`; |
| return new ConfigDependency({ |
| error, |
| id, |
| importerName, |
| importerPath |
| }); |
| } |
| |
| /** |
| * Take file expression processors as config array elements. |
| * @param {Record<string,DependentPlugin>} plugins The plugin definitions. |
| * @param {string} filePath The file path of this config. |
| * @param {string} name The name of this config. |
| * @returns {IterableIterator<ConfigArrayElement>} The config array elements of file expression processors. |
| * @private |
| */ |
| *_takeFileExtensionProcessors(plugins, filePath, name) { |
| for (const pluginId of Object.keys(plugins)) { |
| const processors = |
| plugins[pluginId] && |
| plugins[pluginId].definition && |
| plugins[pluginId].definition.processors; |
| |
| if (!processors) { |
| continue; |
| } |
| |
| for (const processorId of Object.keys(processors)) { |
| if (processorId.startsWith(".")) { |
| yield* this._normalizeObjectConfigData( |
| { |
| files: [`*${processorId}`], |
| processor: `${pluginId}/${processorId}` |
| }, |
| filePath, |
| `${name}#processors["${pluginId}/${processorId}"]` |
| ); |
| } |
| } |
| } |
| } |
| } |
| |
| module.exports = { ConfigArrayFactory }; |