mirror of
https://github.com/joelwmale/webhook-action.git
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472 lines
15 KiB
JavaScript
472 lines
15 KiB
JavaScript
/**
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* @fileoverview Main CLI object.
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* @author Nicholas C. Zakas
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*/
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"use strict";
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/*
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* NOTE: 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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path = require("path"),
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{ promisify } = require("util"),
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{ ESLint } = require("./eslint"),
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{ FlatESLint, shouldUseFlatConfig } = require("./eslint/flat-eslint"),
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createCLIOptions = require("./options"),
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log = require("./shared/logging"),
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RuntimeInfo = require("./shared/runtime-info"),
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{ normalizeSeverityToString } = require("./shared/severity");
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const { Legacy: { naming } } = require("@eslint/eslintrc");
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const { ModuleImporter } = require("@humanwhocodes/module-importer");
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const debug = require("debug")("eslint:cli");
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//------------------------------------------------------------------------------
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// Types
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//------------------------------------------------------------------------------
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/** @typedef {import("./eslint/eslint").ESLintOptions} ESLintOptions */
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/** @typedef {import("./eslint/eslint").LintMessage} LintMessage */
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/** @typedef {import("./eslint/eslint").LintResult} LintResult */
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/** @typedef {import("./options").ParsedCLIOptions} ParsedCLIOptions */
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/** @typedef {import("./shared/types").ResultsMeta} ResultsMeta */
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//------------------------------------------------------------------------------
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// Helpers
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//------------------------------------------------------------------------------
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const mkdir = promisify(fs.mkdir);
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const stat = promisify(fs.stat);
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const writeFile = promisify(fs.writeFile);
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/**
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* Predicate function for whether or not to apply fixes in quiet mode.
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* If a message is a warning, do not apply a fix.
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* @param {LintMessage} message The lint result.
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* @returns {boolean} True if the lint message is an error (and thus should be
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* autofixed), false otherwise.
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*/
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function quietFixPredicate(message) {
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return message.severity === 2;
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}
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/**
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* Translates the CLI options into the options expected by the ESLint constructor.
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* @param {ParsedCLIOptions} cliOptions The CLI options to translate.
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* @param {"flat"|"eslintrc"} [configType="eslintrc"] The format of the
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* config to generate.
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* @returns {Promise<ESLintOptions>} The options object for the ESLint constructor.
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* @private
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*/
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async function translateOptions({
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cache,
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cacheFile,
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cacheLocation,
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cacheStrategy,
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config,
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configLookup,
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env,
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errorOnUnmatchedPattern,
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eslintrc,
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ext,
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fix,
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fixDryRun,
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fixType,
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global,
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ignore,
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ignorePath,
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ignorePattern,
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inlineConfig,
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parser,
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parserOptions,
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plugin,
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quiet,
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reportUnusedDisableDirectives,
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reportUnusedDisableDirectivesSeverity,
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resolvePluginsRelativeTo,
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rule,
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rulesdir,
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warnIgnored
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}, configType) {
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let overrideConfig, overrideConfigFile;
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const importer = new ModuleImporter();
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if (configType === "flat") {
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overrideConfigFile = (typeof config === "string") ? config : !configLookup;
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if (overrideConfigFile === false) {
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overrideConfigFile = void 0;
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}
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let globals = {};
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if (global) {
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globals = global.reduce((obj, name) => {
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if (name.endsWith(":true")) {
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obj[name.slice(0, -5)] = "writable";
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} else {
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obj[name] = "readonly";
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}
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return obj;
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}, globals);
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}
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overrideConfig = [{
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languageOptions: {
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globals,
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parserOptions: parserOptions || {}
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},
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rules: rule ? rule : {}
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}];
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if (reportUnusedDisableDirectives || reportUnusedDisableDirectivesSeverity !== void 0) {
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overrideConfig[0].linterOptions = {
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reportUnusedDisableDirectives: reportUnusedDisableDirectives
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? "error"
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: normalizeSeverityToString(reportUnusedDisableDirectivesSeverity)
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};
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}
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if (parser) {
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overrideConfig[0].languageOptions.parser = await importer.import(parser);
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}
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if (plugin) {
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const plugins = {};
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for (const pluginName of plugin) {
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const shortName = naming.getShorthandName(pluginName, "eslint-plugin");
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const longName = naming.normalizePackageName(pluginName, "eslint-plugin");
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plugins[shortName] = await importer.import(longName);
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}
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overrideConfig[0].plugins = plugins;
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}
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} else {
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overrideConfigFile = config;
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overrideConfig = {
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env: env && env.reduce((obj, name) => {
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obj[name] = true;
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return obj;
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}, {}),
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globals: global && global.reduce((obj, name) => {
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if (name.endsWith(":true")) {
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obj[name.slice(0, -5)] = "writable";
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} else {
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obj[name] = "readonly";
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}
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return obj;
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}, {}),
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ignorePatterns: ignorePattern,
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parser,
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parserOptions,
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plugins: plugin,
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rules: rule
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};
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}
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const options = {
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allowInlineConfig: inlineConfig,
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cache,
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cacheLocation: cacheLocation || cacheFile,
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cacheStrategy,
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errorOnUnmatchedPattern,
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fix: (fix || fixDryRun) && (quiet ? quietFixPredicate : true),
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fixTypes: fixType,
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ignore,
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overrideConfig,
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overrideConfigFile
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};
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if (configType === "flat") {
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options.ignorePatterns = ignorePattern;
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options.warnIgnored = warnIgnored;
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} else {
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options.resolvePluginsRelativeTo = resolvePluginsRelativeTo;
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options.rulePaths = rulesdir;
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options.useEslintrc = eslintrc;
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options.extensions = ext;
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options.ignorePath = ignorePath;
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if (reportUnusedDisableDirectives || reportUnusedDisableDirectivesSeverity !== void 0) {
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options.reportUnusedDisableDirectives = reportUnusedDisableDirectives
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? "error"
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: normalizeSeverityToString(reportUnusedDisableDirectivesSeverity);
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}
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}
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return options;
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}
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/**
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* Count error messages.
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* @param {LintResult[]} results The lint results.
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* @returns {{errorCount:number;fatalErrorCount:number,warningCount:number}} The number of error messages.
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*/
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function countErrors(results) {
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let errorCount = 0;
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let fatalErrorCount = 0;
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let warningCount = 0;
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for (const result of results) {
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errorCount += result.errorCount;
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fatalErrorCount += result.fatalErrorCount;
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warningCount += result.warningCount;
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}
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return { errorCount, fatalErrorCount, warningCount };
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}
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/**
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* Check if a given file path is a directory or not.
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* @param {string} filePath The path to a file to check.
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* @returns {Promise<boolean>} `true` if the given path is a directory.
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*/
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async function isDirectory(filePath) {
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try {
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return (await stat(filePath)).isDirectory();
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} catch (error) {
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if (error.code === "ENOENT" || error.code === "ENOTDIR") {
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return false;
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}
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throw error;
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}
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}
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/**
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* Outputs the results of the linting.
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* @param {ESLint} engine The ESLint instance to use.
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* @param {LintResult[]} results The results to print.
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* @param {string} format The name of the formatter to use or the path to the formatter.
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* @param {string} outputFile The path for the output file.
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* @param {ResultsMeta} resultsMeta Warning count and max threshold.
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* @returns {Promise<boolean>} True if the printing succeeds, false if not.
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* @private
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*/
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async function printResults(engine, results, format, outputFile, resultsMeta) {
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let formatter;
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try {
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formatter = await engine.loadFormatter(format);
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} catch (e) {
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log.error(e.message);
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return false;
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}
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const output = await formatter.format(results, resultsMeta);
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if (output) {
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if (outputFile) {
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const filePath = path.resolve(process.cwd(), outputFile);
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if (await isDirectory(filePath)) {
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log.error("Cannot write to output file path, it is a directory: %s", outputFile);
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return false;
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}
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try {
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await mkdir(path.dirname(filePath), { recursive: true });
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await writeFile(filePath, output);
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} catch (ex) {
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log.error("There was a problem writing the output file:\n%s", ex);
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return false;
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}
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} else {
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log.info(output);
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}
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}
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return true;
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}
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//------------------------------------------------------------------------------
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// Public Interface
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//------------------------------------------------------------------------------
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/**
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* Encapsulates all CLI behavior for eslint. Makes it easier to test as well as
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* for other Node.js programs to effectively run the CLI.
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*/
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const cli = {
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/**
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* Executes the CLI based on an array of arguments that is passed in.
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* @param {string|Array|Object} args The arguments to process.
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* @param {string} [text] The text to lint (used for TTY).
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* @param {boolean} [allowFlatConfig] Whether or not to allow flat config.
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* @returns {Promise<number>} The exit code for the operation.
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*/
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async execute(args, text, allowFlatConfig) {
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if (Array.isArray(args)) {
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debug("CLI args: %o", args.slice(2));
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}
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/*
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* Before doing anything, we need to see if we are using a
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* flat config file. If so, then we need to change the way command
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* line args are parsed. This is temporary, and when we fully
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* switch to flat config we can remove this logic.
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*/
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const usingFlatConfig = allowFlatConfig && await shouldUseFlatConfig();
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debug("Using flat config?", usingFlatConfig);
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const CLIOptions = createCLIOptions(usingFlatConfig);
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/** @type {ParsedCLIOptions} */
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let options;
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try {
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options = CLIOptions.parse(args);
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} catch (error) {
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debug("Error parsing CLI options:", error.message);
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let errorMessage = error.message;
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if (usingFlatConfig) {
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errorMessage += "\nYou're using eslint.config.js, some command line flags are no longer available. Please see https://eslint.org/docs/latest/use/command-line-interface for details.";
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}
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log.error(errorMessage);
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return 2;
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}
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const files = options._;
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const useStdin = typeof text === "string";
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if (options.help) {
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log.info(CLIOptions.generateHelp());
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return 0;
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}
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if (options.version) {
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log.info(RuntimeInfo.version());
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return 0;
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}
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if (options.envInfo) {
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try {
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log.info(RuntimeInfo.environment());
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return 0;
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} catch (err) {
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debug("Error retrieving environment info");
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log.error(err.message);
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return 2;
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}
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}
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if (options.printConfig) {
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if (files.length) {
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log.error("The --print-config option must be used with exactly one file name.");
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return 2;
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}
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if (useStdin) {
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log.error("The --print-config option is not available for piped-in code.");
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return 2;
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}
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const engine = usingFlatConfig
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? new FlatESLint(await translateOptions(options, "flat"))
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: new ESLint(await translateOptions(options));
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const fileConfig =
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await engine.calculateConfigForFile(options.printConfig);
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log.info(JSON.stringify(fileConfig, null, " "));
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return 0;
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}
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debug(`Running on ${useStdin ? "text" : "files"}`);
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if (options.fix && options.fixDryRun) {
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log.error("The --fix option and the --fix-dry-run option cannot be used together.");
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return 2;
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}
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if (useStdin && options.fix) {
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log.error("The --fix option is not available for piped-in code; use --fix-dry-run instead.");
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return 2;
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}
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if (options.fixType && !options.fix && !options.fixDryRun) {
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log.error("The --fix-type option requires either --fix or --fix-dry-run.");
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return 2;
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}
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if (options.reportUnusedDisableDirectives && options.reportUnusedDisableDirectivesSeverity !== void 0) {
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log.error("The --report-unused-disable-directives option and the --report-unused-disable-directives-severity option cannot be used together.");
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return 2;
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}
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const ActiveESLint = usingFlatConfig ? FlatESLint : ESLint;
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const engine = new ActiveESLint(await translateOptions(options, usingFlatConfig ? "flat" : "eslintrc"));
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let results;
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if (useStdin) {
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results = await engine.lintText(text, {
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filePath: options.stdinFilename,
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// flatConfig respects CLI flag and constructor warnIgnored, eslintrc forces true for backwards compatibility
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warnIgnored: usingFlatConfig ? void 0 : true
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});
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} else {
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results = await engine.lintFiles(files);
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}
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if (options.fix) {
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debug("Fix mode enabled - applying fixes");
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await ActiveESLint.outputFixes(results);
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}
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let resultsToPrint = results;
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if (options.quiet) {
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debug("Quiet mode enabled - filtering out warnings");
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resultsToPrint = ActiveESLint.getErrorResults(resultsToPrint);
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}
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const resultCounts = countErrors(results);
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const tooManyWarnings = options.maxWarnings >= 0 && resultCounts.warningCount > options.maxWarnings;
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const resultsMeta = tooManyWarnings
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? {
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maxWarningsExceeded: {
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maxWarnings: options.maxWarnings,
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foundWarnings: resultCounts.warningCount
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}
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}
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: {};
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if (await printResults(engine, resultsToPrint, options.format, options.outputFile, resultsMeta)) {
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// Errors and warnings from the original unfiltered results should determine the exit code
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const shouldExitForFatalErrors =
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options.exitOnFatalError && resultCounts.fatalErrorCount > 0;
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if (!resultCounts.errorCount && tooManyWarnings) {
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log.error(
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"ESLint found too many warnings (maximum: %s).",
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options.maxWarnings
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);
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}
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if (shouldExitForFatalErrors) {
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return 2;
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}
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return (resultCounts.errorCount || tooManyWarnings) ? 1 : 0;
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}
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return 2;
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}
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};
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module.exports = cli;
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