/**
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* @fileoverview Main CLI object.
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* @author Nicholas C. Zakas
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*/
|
|
"use strict";
|
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/*
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* The CLI object should *not* call process.exit() directly. It should only return
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* exit codes. This allows other programs to use the CLI object and still control
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* when the program exits.
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*/
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//------------------------------------------------------------------------------
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// Requirements
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//------------------------------------------------------------------------------
|
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const fs = require("fs");
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const path = require("path");
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const defaultOptions = require("../../conf/default-cli-options");
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const pkg = require("../../package.json");
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|
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const {
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Legacy: {
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ConfigOps,
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naming,
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CascadingConfigArrayFactory,
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IgnorePattern,
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getUsedExtractedConfigs
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}
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} = require("@eslint/eslintrc");
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/*
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* For some reason, ModuleResolver must be included via filepath instead of by
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* API exports in order to work properly. That's why this is separated out onto
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* its own require() statement.
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*/
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const ModuleResolver = require("@eslint/eslintrc/lib/shared/relative-module-resolver");
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const { FileEnumerator } = require("./file-enumerator");
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const { Linter } = require("../linter");
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const builtInRules = require("../rules");
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const loadRules = require("./load-rules");
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const hash = require("./hash");
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const LintResultCache = require("./lint-result-cache");
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const debug = require("debug")("eslint:cli-engine");
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const validFixTypes = new Set(["problem", "suggestion", "layout"]);
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//------------------------------------------------------------------------------
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// Typedefs
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//------------------------------------------------------------------------------
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// For VSCode IntelliSense
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/** @typedef {import("../shared/types").ConfigData} ConfigData */
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/** @typedef {import("../shared/types").DeprecatedRuleInfo} DeprecatedRuleInfo */
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/** @typedef {import("../shared/types").LintMessage} LintMessage */
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/** @typedef {import("../shared/types").ParserOptions} ParserOptions */
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/** @typedef {import("../shared/types").Plugin} Plugin */
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/** @typedef {import("../shared/types").RuleConf} RuleConf */
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/** @typedef {import("../shared/types").Rule} Rule */
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/** @typedef {ReturnType<CascadingConfigArrayFactory["getConfigArrayForFile"]>} ConfigArray */
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/** @typedef {ReturnType<ConfigArray["extractConfig"]>} ExtractedConfig */
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/**
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* The options to configure a CLI engine with.
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* @typedef {Object} CLIEngineOptions
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* @property {boolean} [allowInlineConfig] Enable or disable inline configuration comments.
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* @property {ConfigData} [baseConfig] Base config object, extended by all configs used with this CLIEngine instance
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* @property {boolean} [cache] Enable result caching.
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* @property {string} [cacheLocation] The cache file to use instead of .eslintcache.
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* @property {string} [configFile] The configuration file to use.
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* @property {string} [cwd] The value to use for the current working directory.
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* @property {string[]} [envs] An array of environments to load.
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* @property {string[]|null} [extensions] An array of file extensions to check.
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* @property {boolean|Function} [fix] Execute in autofix mode. If a function, should return a boolean.
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* @property {string[]} [fixTypes] Array of rule types to apply fixes for.
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* @property {string[]} [globals] An array of global variables to declare.
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* @property {boolean} [ignore] False disables use of .eslintignore.
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* @property {string} [ignorePath] The ignore file to use instead of .eslintignore.
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* @property {string|string[]} [ignorePattern] One or more glob patterns to ignore.
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* @property {boolean} [useEslintrc] False disables looking for .eslintrc
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* @property {string} [parser] The name of the parser to use.
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* @property {ParserOptions} [parserOptions] An object of parserOption settings to use.
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* @property {string[]} [plugins] An array of plugins to load.
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* @property {Record<string,RuleConf>} [rules] An object of rules to use.
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* @property {string[]} [rulePaths] An array of directories to load custom rules from.
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* @property {boolean} [reportUnusedDisableDirectives] `true` adds reports for unused eslint-disable directives
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* @property {boolean} [globInputPaths] Set to false to skip glob resolution of input file paths to lint (default: true). If false, each input file paths is assumed to be a non-glob path to an existing file.
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* @property {string} [resolvePluginsRelativeTo] The folder where plugins should be resolved from, defaulting to the CWD
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*/
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/**
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* A linting result.
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* @typedef {Object} LintResult
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* @property {string} filePath The path to the file that was linted.
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* @property {LintMessage[]} messages All of the messages for the result.
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* @property {number} errorCount Number of errors for the result.
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* @property {number} warningCount Number of warnings for the result.
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* @property {number} fixableErrorCount Number of fixable errors for the result.
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* @property {number} fixableWarningCount Number of fixable warnings for the result.
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* @property {string} [source] The source code of the file that was linted.
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* @property {string} [output] The source code of the file that was linted, with as many fixes applied as possible.
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*/
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/**
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* Linting results.
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* @typedef {Object} LintReport
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* @property {LintResult[]} results All of the result.
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* @property {number} errorCount Number of errors for the result.
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* @property {number} warningCount Number of warnings for the result.
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* @property {number} fixableErrorCount Number of fixable errors for the result.
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* @property {number} fixableWarningCount Number of fixable warnings for the result.
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* @property {DeprecatedRuleInfo[]} usedDeprecatedRules The list of used deprecated rules.
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*/
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/**
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* Private data for CLIEngine.
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* @typedef {Object} CLIEngineInternalSlots
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* @property {Map<string, Plugin>} additionalPluginPool The map for additional plugins.
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* @property {string} cacheFilePath The path to the cache of lint results.
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* @property {CascadingConfigArrayFactory} configArrayFactory The factory of configs.
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* @property {(filePath: string) => boolean} defaultIgnores The default predicate function to check if a file ignored or not.
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* @property {FileEnumerator} fileEnumerator The file enumerator.
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* @property {ConfigArray[]} lastConfigArrays The list of config arrays that the last `executeOnFiles` or `executeOnText` used.
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* @property {LintResultCache|null} lintResultCache The cache of lint results.
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* @property {Linter} linter The linter instance which has loaded rules.
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* @property {CLIEngineOptions} options The normalized options of this instance.
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*/
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//------------------------------------------------------------------------------
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// Helpers
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//------------------------------------------------------------------------------
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/** @type {WeakMap<CLIEngine, CLIEngineInternalSlots>} */
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const internalSlotsMap = new WeakMap();
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/**
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* Determines if each fix type in an array is supported by ESLint and throws
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* an error if not.
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* @param {string[]} fixTypes An array of fix types to check.
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* @returns {void}
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* @throws {Error} If an invalid fix type is found.
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*/
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function validateFixTypes(fixTypes) {
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for (const fixType of fixTypes) {
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if (!validFixTypes.has(fixType)) {
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throw new Error(`Invalid fix type "${fixType}" found.`);
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}
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}
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}
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/**
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* It will calculate the error and warning count for collection of messages per file
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* @param {LintMessage[]} messages Collection of messages
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* @returns {Object} Contains the stats
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* @private
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*/
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function calculateStatsPerFile(messages) {
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return messages.reduce((stat, message) => {
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if (message.fatal || message.severity === 2) {
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stat.errorCount++;
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if (message.fix) {
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stat.fixableErrorCount++;
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}
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} else {
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stat.warningCount++;
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if (message.fix) {
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stat.fixableWarningCount++;
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}
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}
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return stat;
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}, {
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errorCount: 0,
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warningCount: 0,
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fixableErrorCount: 0,
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fixableWarningCount: 0
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});
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}
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/**
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* It will calculate the error and warning count for collection of results from all files
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* @param {LintResult[]} results Collection of messages from all the files
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* @returns {Object} Contains the stats
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* @private
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*/
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function calculateStatsPerRun(results) {
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return results.reduce((stat, result) => {
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stat.errorCount += result.errorCount;
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stat.warningCount += result.warningCount;
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stat.fixableErrorCount += result.fixableErrorCount;
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stat.fixableWarningCount += result.fixableWarningCount;
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return stat;
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}, {
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errorCount: 0,
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warningCount: 0,
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fixableErrorCount: 0,
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fixableWarningCount: 0
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});
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}
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/**
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* Processes an source code using ESLint.
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* @param {Object} config The config object.
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* @param {string} config.text The source code to verify.
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* @param {string} config.cwd The path to the current working directory.
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* @param {string|undefined} config.filePath The path to the file of `text`. If this is undefined, it uses `<text>`.
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* @param {ConfigArray} config.config The config.
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* @param {boolean} config.fix If `true` then it does fix.
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* @param {boolean} config.allowInlineConfig If `true` then it uses directive comments.
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* @param {boolean} config.reportUnusedDisableDirectives If `true` then it reports unused `eslint-disable` comments.
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* @param {FileEnumerator} config.fileEnumerator The file enumerator to check if a path is a target or not.
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* @param {Linter} config.linter The linter instance to verify.
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* @returns {LintResult} The result of linting.
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* @private
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*/
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function verifyText({
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text,
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cwd,
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filePath: providedFilePath,
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config,
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fix,
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allowInlineConfig,
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reportUnusedDisableDirectives,
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fileEnumerator,
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linter
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}) {
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const filePath = providedFilePath || "<text>";
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debug(`Lint ${filePath}`);
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/*
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* Verify.
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* `config.extractConfig(filePath)` requires an absolute path, but `linter`
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* doesn't know CWD, so it gives `linter` an absolute path always.
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*/
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const filePathToVerify = filePath === "<text>" ? path.join(cwd, filePath) : filePath;
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const { fixed, messages, output } = linter.verifyAndFix(
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text,
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config,
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{
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allowInlineConfig,
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filename: filePathToVerify,
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fix,
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reportUnusedDisableDirectives,
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/**
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* Check if the linter should adopt a given code block or not.
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* @param {string} blockFilename The virtual filename of a code block.
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* @returns {boolean} `true` if the linter should adopt the code block.
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*/
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filterCodeBlock(blockFilename) {
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return fileEnumerator.isTargetPath(blockFilename);
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}
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}
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);
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// Tweak and return.
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const result = {
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filePath,
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messages,
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...calculateStatsPerFile(messages)
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};
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if (fixed) {
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result.output = output;
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}
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if (
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result.errorCount + result.warningCount > 0 &&
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typeof result.output === "undefined"
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) {
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result.source = text;
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}
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return result;
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}
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/**
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* Returns result with warning by ignore settings
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* @param {string} filePath File path of checked code
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* @param {string} baseDir Absolute path of base directory
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* @returns {LintResult} Result with single warning
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* @private
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*/
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function createIgnoreResult(filePath, baseDir) {
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let message;
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const isHidden = filePath.split(path.sep)
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.find(segment => /^\./u.test(segment));
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const isInNodeModules = baseDir && path.relative(baseDir, filePath).startsWith("node_modules");
|
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if (isHidden) {
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message = "File ignored by default. Use a negated ignore pattern (like \"--ignore-pattern '!<relative/path/to/filename>'\") to override.";
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} else if (isInNodeModules) {
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message = "File ignored by default. Use \"--ignore-pattern '!node_modules/*'\" to override.";
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} else {
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message = "File ignored because of a matching ignore pattern. Use \"--no-ignore\" to override.";
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}
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return {
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filePath: path.resolve(filePath),
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messages: [
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{
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fatal: false,
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severity: 1,
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message
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}
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],
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errorCount: 0,
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warningCount: 1,
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fixableErrorCount: 0,
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fixableWarningCount: 0
|
};
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}
|
|
/**
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* Get a rule.
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* @param {string} ruleId The rule ID to get.
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* @param {ConfigArray[]} configArrays The config arrays that have plugin rules.
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* @returns {Rule|null} The rule or null.
|
*/
|
function getRule(ruleId, configArrays) {
|
for (const configArray of configArrays) {
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const rule = configArray.pluginRules.get(ruleId);
|
|
if (rule) {
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return rule;
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}
|
}
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return builtInRules.get(ruleId) || null;
|
}
|
|
/**
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* Collect used deprecated rules.
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* @param {ConfigArray[]} usedConfigArrays The config arrays which were used.
|
* @returns {IterableIterator<DeprecatedRuleInfo>} Used deprecated rules.
|
*/
|
function *iterateRuleDeprecationWarnings(usedConfigArrays) {
|
const processedRuleIds = new Set();
|
|
// Flatten used configs.
|
/** @type {ExtractedConfig[]} */
|
const configs = [].concat(
|
...usedConfigArrays.map(getUsedExtractedConfigs)
|
);
|
|
// Traverse rule configs.
|
for (const config of configs) {
|
for (const [ruleId, ruleConfig] of Object.entries(config.rules)) {
|
|
// Skip if it was processed.
|
if (processedRuleIds.has(ruleId)) {
|
continue;
|
}
|
processedRuleIds.add(ruleId);
|
|
// Skip if it's not used.
|
if (!ConfigOps.getRuleSeverity(ruleConfig)) {
|
continue;
|
}
|
const rule = getRule(ruleId, usedConfigArrays);
|
|
// Skip if it's not deprecated.
|
if (!(rule && rule.meta && rule.meta.deprecated)) {
|
continue;
|
}
|
|
// This rule was used and deprecated.
|
yield {
|
ruleId,
|
replacedBy: rule.meta.replacedBy || []
|
};
|
}
|
}
|
}
|
|
/**
|
* Checks if the given message is an error message.
|
* @param {LintMessage} message The message to check.
|
* @returns {boolean} Whether or not the message is an error message.
|
* @private
|
*/
|
function isErrorMessage(message) {
|
return message.severity === 2;
|
}
|
|
|
/**
|
* return the cacheFile to be used by eslint, based on whether the provided parameter is
|
* a directory or looks like a directory (ends in `path.sep`), in which case the file
|
* name will be the `cacheFile/.cache_hashOfCWD`
|
*
|
* if cacheFile points to a file or looks like a file then in will just use that file
|
* @param {string} cacheFile The name of file to be used to store the cache
|
* @param {string} cwd Current working directory
|
* @returns {string} the resolved path to the cache file
|
*/
|
function getCacheFile(cacheFile, cwd) {
|
|
/*
|
* make sure the path separators are normalized for the environment/os
|
* keeping the trailing path separator if present
|
*/
|
const normalizedCacheFile = path.normalize(cacheFile);
|
|
const resolvedCacheFile = path.resolve(cwd, normalizedCacheFile);
|
const looksLikeADirectory = normalizedCacheFile.slice(-1) === path.sep;
|
|
/**
|
* return the name for the cache file in case the provided parameter is a directory
|
* @returns {string} the resolved path to the cacheFile
|
*/
|
function getCacheFileForDirectory() {
|
return path.join(resolvedCacheFile, `.cache_${hash(cwd)}`);
|
}
|
|
let fileStats;
|
|
try {
|
fileStats = fs.lstatSync(resolvedCacheFile);
|
} catch {
|
fileStats = null;
|
}
|
|
|
/*
|
* in case the file exists we need to verify if the provided path
|
* is a directory or a file. If it is a directory we want to create a file
|
* inside that directory
|
*/
|
if (fileStats) {
|
|
/*
|
* is a directory or is a file, but the original file the user provided
|
* looks like a directory but `path.resolve` removed the `last path.sep`
|
* so we need to still treat this like a directory
|
*/
|
if (fileStats.isDirectory() || looksLikeADirectory) {
|
return getCacheFileForDirectory();
|
}
|
|
// is file so just use that file
|
return resolvedCacheFile;
|
}
|
|
/*
|
* here we known the file or directory doesn't exist,
|
* so we will try to infer if its a directory if it looks like a directory
|
* for the current operating system.
|
*/
|
|
// if the last character passed is a path separator we assume is a directory
|
if (looksLikeADirectory) {
|
return getCacheFileForDirectory();
|
}
|
|
return resolvedCacheFile;
|
}
|
|
/**
|
* Convert a string array to a boolean map.
|
* @param {string[]|null} keys The keys to assign true.
|
* @param {boolean} defaultValue The default value for each property.
|
* @param {string} displayName The property name which is used in error message.
|
* @returns {Record<string,boolean>} The boolean map.
|
*/
|
function toBooleanMap(keys, defaultValue, displayName) {
|
if (keys && !Array.isArray(keys)) {
|
throw new Error(`${displayName} must be an array.`);
|
}
|
if (keys && keys.length > 0) {
|
return keys.reduce((map, def) => {
|
const [key, value] = def.split(":");
|
|
if (key !== "__proto__") {
|
map[key] = value === void 0
|
? defaultValue
|
: value === "true";
|
}
|
|
return map;
|
}, {});
|
}
|
return void 0;
|
}
|
|
/**
|
* Create a config data from CLI options.
|
* @param {CLIEngineOptions} options The options
|
* @returns {ConfigData|null} The created config data.
|
*/
|
function createConfigDataFromOptions(options) {
|
const {
|
ignorePattern,
|
parser,
|
parserOptions,
|
plugins,
|
rules
|
} = options;
|
const env = toBooleanMap(options.envs, true, "envs");
|
const globals = toBooleanMap(options.globals, false, "globals");
|
|
if (
|
env === void 0 &&
|
globals === void 0 &&
|
(ignorePattern === void 0 || ignorePattern.length === 0) &&
|
parser === void 0 &&
|
parserOptions === void 0 &&
|
plugins === void 0 &&
|
rules === void 0
|
) {
|
return null;
|
}
|
return {
|
env,
|
globals,
|
ignorePatterns: ignorePattern,
|
parser,
|
parserOptions,
|
plugins,
|
rules
|
};
|
}
|
|
/**
|
* Checks whether a directory exists at the given location
|
* @param {string} resolvedPath A path from the CWD
|
* @returns {boolean} `true` if a directory exists
|
*/
|
function directoryExists(resolvedPath) {
|
try {
|
return fs.statSync(resolvedPath).isDirectory();
|
} catch (error) {
|
if (error && error.code === "ENOENT") {
|
return false;
|
}
|
throw error;
|
}
|
}
|
|
//------------------------------------------------------------------------------
|
// Public Interface
|
//------------------------------------------------------------------------------
|
|
class CLIEngine {
|
|
/**
|
* Creates a new instance of the core CLI engine.
|
* @param {CLIEngineOptions} providedOptions The options for this instance.
|
*/
|
constructor(providedOptions) {
|
const options = Object.assign(
|
Object.create(null),
|
defaultOptions,
|
{ cwd: process.cwd() },
|
providedOptions
|
);
|
|
if (options.fix === void 0) {
|
options.fix = false;
|
}
|
|
const additionalPluginPool = new Map();
|
const cacheFilePath = getCacheFile(
|
options.cacheLocation || options.cacheFile,
|
options.cwd
|
);
|
const configArrayFactory = new CascadingConfigArrayFactory({
|
additionalPluginPool,
|
baseConfig: options.baseConfig || null,
|
cliConfig: createConfigDataFromOptions(options),
|
cwd: options.cwd,
|
ignorePath: options.ignorePath,
|
resolvePluginsRelativeTo: options.resolvePluginsRelativeTo,
|
rulePaths: options.rulePaths,
|
specificConfigPath: options.configFile,
|
useEslintrc: options.useEslintrc,
|
builtInRules,
|
loadRules,
|
eslintRecommendedPath: path.resolve(__dirname, "../../conf/eslint-recommended.js"),
|
eslintAllPath: path.resolve(__dirname, "../../conf/eslint-all.js")
|
});
|
const fileEnumerator = new FileEnumerator({
|
configArrayFactory,
|
cwd: options.cwd,
|
extensions: options.extensions,
|
globInputPaths: options.globInputPaths,
|
errorOnUnmatchedPattern: options.errorOnUnmatchedPattern,
|
ignore: options.ignore
|
});
|
const lintResultCache =
|
options.cache ? new LintResultCache(cacheFilePath) : null;
|
const linter = new Linter({ cwd: options.cwd });
|
|
/** @type {ConfigArray[]} */
|
const lastConfigArrays = [configArrayFactory.getConfigArrayForFile()];
|
|
// Store private data.
|
internalSlotsMap.set(this, {
|
additionalPluginPool,
|
cacheFilePath,
|
configArrayFactory,
|
defaultIgnores: IgnorePattern.createDefaultIgnore(options.cwd),
|
fileEnumerator,
|
lastConfigArrays,
|
lintResultCache,
|
linter,
|
options
|
});
|
|
// setup special filter for fixes
|
if (options.fix && options.fixTypes && options.fixTypes.length > 0) {
|
debug(`Using fix types ${options.fixTypes}`);
|
|
// throw an error if any invalid fix types are found
|
validateFixTypes(options.fixTypes);
|
|
// convert to Set for faster lookup
|
const fixTypes = new Set(options.fixTypes);
|
|
// save original value of options.fix in case it's a function
|
const originalFix = (typeof options.fix === "function")
|
? options.fix : () => true;
|
|
options.fix = message => {
|
const rule = message.ruleId && getRule(message.ruleId, lastConfigArrays);
|
const matches = rule && rule.meta && fixTypes.has(rule.meta.type);
|
|
return matches && originalFix(message);
|
};
|
}
|
}
|
|
getRules() {
|
const { lastConfigArrays } = internalSlotsMap.get(this);
|
|
return new Map(function *() {
|
yield* builtInRules;
|
|
for (const configArray of lastConfigArrays) {
|
yield* configArray.pluginRules;
|
}
|
}());
|
}
|
|
/**
|
* Returns results that only contains errors.
|
* @param {LintResult[]} results The results to filter.
|
* @returns {LintResult[]} The filtered results.
|
*/
|
static getErrorResults(results) {
|
const filtered = [];
|
|
results.forEach(result => {
|
const filteredMessages = result.messages.filter(isErrorMessage);
|
|
if (filteredMessages.length > 0) {
|
filtered.push({
|
...result,
|
messages: filteredMessages,
|
errorCount: filteredMessages.length,
|
warningCount: 0,
|
fixableErrorCount: result.fixableErrorCount,
|
fixableWarningCount: 0
|
});
|
}
|
});
|
|
return filtered;
|
}
|
|
/**
|
* Outputs fixes from the given results to files.
|
* @param {LintReport} report The report object created by CLIEngine.
|
* @returns {void}
|
*/
|
static outputFixes(report) {
|
report.results.filter(result => Object.prototype.hasOwnProperty.call(result, "output")).forEach(result => {
|
fs.writeFileSync(result.filePath, result.output);
|
});
|
}
|
|
|
/**
|
* Add a plugin by passing its configuration
|
* @param {string} name Name of the plugin.
|
* @param {Plugin} pluginObject Plugin configuration object.
|
* @returns {void}
|
*/
|
addPlugin(name, pluginObject) {
|
const {
|
additionalPluginPool,
|
configArrayFactory,
|
lastConfigArrays
|
} = internalSlotsMap.get(this);
|
|
additionalPluginPool.set(name, pluginObject);
|
configArrayFactory.clearCache();
|
lastConfigArrays.length = 1;
|
lastConfigArrays[0] = configArrayFactory.getConfigArrayForFile();
|
}
|
|
/**
|
* Resolves the patterns passed into executeOnFiles() into glob-based patterns
|
* for easier handling.
|
* @param {string[]} patterns The file patterns passed on the command line.
|
* @returns {string[]} The equivalent glob patterns.
|
*/
|
resolveFileGlobPatterns(patterns) {
|
const { options } = internalSlotsMap.get(this);
|
|
if (options.globInputPaths === false) {
|
return patterns.filter(Boolean);
|
}
|
|
const extensions = (options.extensions || [".js"]).map(ext => ext.replace(/^\./u, ""));
|
const dirSuffix = `/**/*.{${extensions.join(",")}}`;
|
|
return patterns.filter(Boolean).map(pathname => {
|
const resolvedPath = path.resolve(options.cwd, pathname);
|
const newPath = directoryExists(resolvedPath)
|
? pathname.replace(/[/\\]$/u, "") + dirSuffix
|
: pathname;
|
|
return path.normalize(newPath).replace(/\\/gu, "/");
|
});
|
}
|
|
/**
|
* Executes the current configuration on an array of file and directory names.
|
* @param {string[]} patterns An array of file and directory names.
|
* @returns {LintReport} The results for all files that were linted.
|
*/
|
executeOnFiles(patterns) {
|
const {
|
cacheFilePath,
|
fileEnumerator,
|
lastConfigArrays,
|
lintResultCache,
|
linter,
|
options: {
|
allowInlineConfig,
|
cache,
|
cwd,
|
fix,
|
reportUnusedDisableDirectives
|
}
|
} = internalSlotsMap.get(this);
|
const results = [];
|
const startTime = Date.now();
|
|
// Clear the last used config arrays.
|
lastConfigArrays.length = 0;
|
|
// Delete cache file; should this do here?
|
if (!cache) {
|
try {
|
fs.unlinkSync(cacheFilePath);
|
} catch (error) {
|
const errorCode = error && error.code;
|
|
// Ignore errors when no such file exists or file system is read only (and cache file does not exist)
|
if (errorCode !== "ENOENT" && !(errorCode === "EROFS" && !fs.existsSync(cacheFilePath))) {
|
throw error;
|
}
|
}
|
}
|
|
// Iterate source code files.
|
for (const { config, filePath, ignored } of fileEnumerator.iterateFiles(patterns)) {
|
if (ignored) {
|
results.push(createIgnoreResult(filePath, cwd));
|
continue;
|
}
|
|
/*
|
* Store used configs for:
|
* - this method uses to collect used deprecated rules.
|
* - `getRules()` method uses to collect all loaded rules.
|
* - `--fix-type` option uses to get the loaded rule's meta data.
|
*/
|
if (!lastConfigArrays.includes(config)) {
|
lastConfigArrays.push(config);
|
}
|
|
// Skip if there is cached result.
|
if (lintResultCache) {
|
const cachedResult =
|
lintResultCache.getCachedLintResults(filePath, config);
|
|
if (cachedResult) {
|
const hadMessages =
|
cachedResult.messages &&
|
cachedResult.messages.length > 0;
|
|
if (hadMessages && fix) {
|
debug(`Reprocessing cached file to allow autofix: ${filePath}`);
|
} else {
|
debug(`Skipping file since it hasn't changed: ${filePath}`);
|
results.push(cachedResult);
|
continue;
|
}
|
}
|
}
|
|
// Do lint.
|
const result = verifyText({
|
text: fs.readFileSync(filePath, "utf8"),
|
filePath,
|
config,
|
cwd,
|
fix,
|
allowInlineConfig,
|
reportUnusedDisableDirectives,
|
fileEnumerator,
|
linter
|
});
|
|
results.push(result);
|
|
/*
|
* Store the lint result in the LintResultCache.
|
* NOTE: The LintResultCache will remove the file source and any
|
* other properties that are difficult to serialize, and will
|
* hydrate those properties back in on future lint runs.
|
*/
|
if (lintResultCache) {
|
lintResultCache.setCachedLintResults(filePath, config, result);
|
}
|
}
|
|
// Persist the cache to disk.
|
if (lintResultCache) {
|
lintResultCache.reconcile();
|
}
|
|
debug(`Linting complete in: ${Date.now() - startTime}ms`);
|
let usedDeprecatedRules;
|
|
return {
|
results,
|
...calculateStatsPerRun(results),
|
|
// Initialize it lazily because CLI and `ESLint` API don't use it.
|
get usedDeprecatedRules() {
|
if (!usedDeprecatedRules) {
|
usedDeprecatedRules = Array.from(
|
iterateRuleDeprecationWarnings(lastConfigArrays)
|
);
|
}
|
return usedDeprecatedRules;
|
}
|
};
|
}
|
|
/**
|
* Executes the current configuration on text.
|
* @param {string} text A string of JavaScript code to lint.
|
* @param {string} [filename] An optional string representing the texts filename.
|
* @param {boolean} [warnIgnored] Always warn when a file is ignored
|
* @returns {LintReport} The results for the linting.
|
*/
|
executeOnText(text, filename, warnIgnored) {
|
const {
|
configArrayFactory,
|
fileEnumerator,
|
lastConfigArrays,
|
linter,
|
options: {
|
allowInlineConfig,
|
cwd,
|
fix,
|
reportUnusedDisableDirectives
|
}
|
} = internalSlotsMap.get(this);
|
const results = [];
|
const startTime = Date.now();
|
const resolvedFilename = filename && path.resolve(cwd, filename);
|
|
|
// Clear the last used config arrays.
|
lastConfigArrays.length = 0;
|
if (resolvedFilename && this.isPathIgnored(resolvedFilename)) {
|
if (warnIgnored) {
|
results.push(createIgnoreResult(resolvedFilename, cwd));
|
}
|
} else {
|
const config = configArrayFactory.getConfigArrayForFile(
|
resolvedFilename || "__placeholder__.js"
|
);
|
|
/*
|
* Store used configs for:
|
* - this method uses to collect used deprecated rules.
|
* - `getRules()` method uses to collect all loaded rules.
|
* - `--fix-type` option uses to get the loaded rule's meta data.
|
*/
|
lastConfigArrays.push(config);
|
|
// Do lint.
|
results.push(verifyText({
|
text,
|
filePath: resolvedFilename,
|
config,
|
cwd,
|
fix,
|
allowInlineConfig,
|
reportUnusedDisableDirectives,
|
fileEnumerator,
|
linter
|
}));
|
}
|
|
debug(`Linting complete in: ${Date.now() - startTime}ms`);
|
let usedDeprecatedRules;
|
|
return {
|
results,
|
...calculateStatsPerRun(results),
|
|
// Initialize it lazily because CLI and `ESLint` API don't use it.
|
get usedDeprecatedRules() {
|
if (!usedDeprecatedRules) {
|
usedDeprecatedRules = Array.from(
|
iterateRuleDeprecationWarnings(lastConfigArrays)
|
);
|
}
|
return usedDeprecatedRules;
|
}
|
};
|
}
|
|
/**
|
* Returns a configuration object for the given file based on the CLI options.
|
* This is the same logic used by the ESLint CLI executable to determine
|
* configuration for each file it processes.
|
* @param {string} filePath The path of the file to retrieve a config object for.
|
* @returns {ConfigData} A configuration object for the file.
|
*/
|
getConfigForFile(filePath) {
|
const { configArrayFactory, options } = internalSlotsMap.get(this);
|
const absolutePath = path.resolve(options.cwd, filePath);
|
|
if (directoryExists(absolutePath)) {
|
throw Object.assign(
|
new Error("'filePath' should not be a directory path."),
|
{ messageTemplate: "print-config-with-directory-path" }
|
);
|
}
|
|
return configArrayFactory
|
.getConfigArrayForFile(absolutePath)
|
.extractConfig(absolutePath)
|
.toCompatibleObjectAsConfigFileContent();
|
}
|
|
/**
|
* Checks if a given path is ignored by ESLint.
|
* @param {string} filePath The path of the file to check.
|
* @returns {boolean} Whether or not the given path is ignored.
|
*/
|
isPathIgnored(filePath) {
|
const {
|
configArrayFactory,
|
defaultIgnores,
|
options: { cwd, ignore }
|
} = internalSlotsMap.get(this);
|
const absolutePath = path.resolve(cwd, filePath);
|
|
if (ignore) {
|
const config = configArrayFactory
|
.getConfigArrayForFile(absolutePath)
|
.extractConfig(absolutePath);
|
const ignores = config.ignores || defaultIgnores;
|
|
return ignores(absolutePath);
|
}
|
|
return defaultIgnores(absolutePath);
|
}
|
|
/**
|
* Returns the formatter representing the given format or null if the `format` is not a string.
|
* @param {string} [format] The name of the format to load or the path to a
|
* custom formatter.
|
* @returns {(Function|null)} The formatter function or null if the `format` is not a string.
|
*/
|
getFormatter(format) {
|
|
// default is stylish
|
const resolvedFormatName = format || "stylish";
|
|
// only strings are valid formatters
|
if (typeof resolvedFormatName === "string") {
|
|
// replace \ with / for Windows compatibility
|
const normalizedFormatName = resolvedFormatName.replace(/\\/gu, "/");
|
|
const slots = internalSlotsMap.get(this);
|
const cwd = slots ? slots.options.cwd : process.cwd();
|
const namespace = naming.getNamespaceFromTerm(normalizedFormatName);
|
|
let formatterPath;
|
|
// if there's a slash, then it's a file (TODO: this check seems dubious for scoped npm packages)
|
if (!namespace && normalizedFormatName.indexOf("/") > -1) {
|
formatterPath = path.resolve(cwd, normalizedFormatName);
|
} else {
|
try {
|
const npmFormat = naming.normalizePackageName(normalizedFormatName, "eslint-formatter");
|
|
formatterPath = ModuleResolver.resolve(npmFormat, path.join(cwd, "__placeholder__.js"));
|
} catch {
|
formatterPath = path.resolve(__dirname, "formatters", normalizedFormatName);
|
}
|
}
|
|
try {
|
return require(formatterPath);
|
} catch (ex) {
|
ex.message = `There was a problem loading formatter: ${formatterPath}\nError: ${ex.message}`;
|
throw ex;
|
}
|
|
} else {
|
return null;
|
}
|
}
|
}
|
|
CLIEngine.version = pkg.version;
|
CLIEngine.getFormatter = CLIEngine.prototype.getFormatter;
|
|
module.exports = {
|
CLIEngine,
|
|
/**
|
* Get the internal slots of a given CLIEngine instance for tests.
|
* @param {CLIEngine} instance The CLIEngine instance to get.
|
* @returns {CLIEngineInternalSlots} The internal slots.
|
*/
|
getCLIEngineInternalSlots(instance) {
|
return internalSlotsMap.get(instance);
|
}
|
};
|
