736 lines
21 KiB
JavaScript
736 lines
21 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const parseJson = require("json-parse-better-errors");
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const asyncLib = require("neo-async");
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const path = require("path");
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const { Source } = require("webpack-sources");
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const util = require("util");
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const {
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Tapable,
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SyncHook,
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SyncBailHook,
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AsyncParallelHook,
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AsyncSeriesHook
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} = require("tapable");
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const Compilation = require("./Compilation");
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const Stats = require("./Stats");
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const Watching = require("./Watching");
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const NormalModuleFactory = require("./NormalModuleFactory");
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const ContextModuleFactory = require("./ContextModuleFactory");
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const ResolverFactory = require("./ResolverFactory");
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const RequestShortener = require("./RequestShortener");
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const { makePathsRelative } = require("./util/identifier");
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const ConcurrentCompilationError = require("./ConcurrentCompilationError");
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const { Logger } = require("./logging/Logger");
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/** @typedef {import("../declarations/WebpackOptions").Entry} Entry */
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/** @typedef {import("../declarations/WebpackOptions").WebpackOptions} WebpackOptions */
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/**
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* @typedef {Object} CompilationParams
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* @property {NormalModuleFactory} normalModuleFactory
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* @property {ContextModuleFactory} contextModuleFactory
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* @property {Set<string>} compilationDependencies
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*/
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class Compiler extends Tapable {
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constructor(context) {
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super();
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this.hooks = {
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/** @type {SyncBailHook<Compilation>} */
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shouldEmit: new SyncBailHook(["compilation"]),
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/** @type {AsyncSeriesHook<Stats>} */
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done: new AsyncSeriesHook(["stats"]),
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/** @type {AsyncSeriesHook<>} */
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additionalPass: new AsyncSeriesHook([]),
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/** @type {AsyncSeriesHook<Compiler>} */
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beforeRun: new AsyncSeriesHook(["compiler"]),
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/** @type {AsyncSeriesHook<Compiler>} */
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run: new AsyncSeriesHook(["compiler"]),
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/** @type {AsyncSeriesHook<Compilation>} */
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emit: new AsyncSeriesHook(["compilation"]),
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/** @type {AsyncSeriesHook<string, Buffer>} */
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assetEmitted: new AsyncSeriesHook(["file", "content"]),
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/** @type {AsyncSeriesHook<Compilation>} */
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afterEmit: new AsyncSeriesHook(["compilation"]),
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/** @type {SyncHook<Compilation, CompilationParams>} */
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thisCompilation: new SyncHook(["compilation", "params"]),
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/** @type {SyncHook<Compilation, CompilationParams>} */
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compilation: new SyncHook(["compilation", "params"]),
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/** @type {SyncHook<NormalModuleFactory>} */
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normalModuleFactory: new SyncHook(["normalModuleFactory"]),
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/** @type {SyncHook<ContextModuleFactory>} */
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contextModuleFactory: new SyncHook(["contextModulefactory"]),
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/** @type {AsyncSeriesHook<CompilationParams>} */
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beforeCompile: new AsyncSeriesHook(["params"]),
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/** @type {SyncHook<CompilationParams>} */
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compile: new SyncHook(["params"]),
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/** @type {AsyncParallelHook<Compilation>} */
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make: new AsyncParallelHook(["compilation"]),
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/** @type {AsyncSeriesHook<Compilation>} */
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afterCompile: new AsyncSeriesHook(["compilation"]),
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/** @type {AsyncSeriesHook<Compiler>} */
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watchRun: new AsyncSeriesHook(["compiler"]),
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/** @type {SyncHook<Error>} */
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failed: new SyncHook(["error"]),
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/** @type {SyncHook<string, string>} */
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invalid: new SyncHook(["filename", "changeTime"]),
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/** @type {SyncHook} */
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watchClose: new SyncHook([]),
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/** @type {SyncBailHook<string, string, any[]>} */
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infrastructureLog: new SyncBailHook(["origin", "type", "args"]),
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// TODO the following hooks are weirdly located here
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// TODO move them for webpack 5
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/** @type {SyncHook} */
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environment: new SyncHook([]),
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/** @type {SyncHook} */
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afterEnvironment: new SyncHook([]),
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/** @type {SyncHook<Compiler>} */
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afterPlugins: new SyncHook(["compiler"]),
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/** @type {SyncHook<Compiler>} */
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afterResolvers: new SyncHook(["compiler"]),
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/** @type {SyncBailHook<string, Entry>} */
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entryOption: new SyncBailHook(["context", "entry"])
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};
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// TODO webpack 5 remove this
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this.hooks.infrastructurelog = this.hooks.infrastructureLog;
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this._pluginCompat.tap("Compiler", options => {
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switch (options.name) {
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case "additional-pass":
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case "before-run":
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case "run":
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case "emit":
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case "after-emit":
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case "before-compile":
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case "make":
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case "after-compile":
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case "watch-run":
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options.async = true;
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break;
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}
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});
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/** @type {string=} */
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this.name = undefined;
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/** @type {Compilation=} */
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this.parentCompilation = undefined;
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/** @type {string} */
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this.outputPath = "";
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this.outputFileSystem = null;
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this.inputFileSystem = null;
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/** @type {string|null} */
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this.recordsInputPath = null;
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/** @type {string|null} */
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this.recordsOutputPath = null;
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this.records = {};
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this.removedFiles = new Set();
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/** @type {Map<string, number>} */
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this.fileTimestamps = new Map();
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/** @type {Map<string, number>} */
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this.contextTimestamps = new Map();
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/** @type {ResolverFactory} */
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this.resolverFactory = new ResolverFactory();
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this.infrastructureLogger = undefined;
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// TODO remove in webpack 5
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this.resolvers = {
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normal: {
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plugins: util.deprecate((hook, fn) => {
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this.resolverFactory.plugin("resolver normal", resolver => {
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resolver.plugin(hook, fn);
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});
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}, "webpack: Using compiler.resolvers.normal is deprecated.\n" + 'Use compiler.resolverFactory.plugin("resolver normal", resolver => {\n resolver.plugin(/* … */);\n}); instead.'),
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apply: util.deprecate((...args) => {
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this.resolverFactory.plugin("resolver normal", resolver => {
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resolver.apply(...args);
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});
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}, "webpack: Using compiler.resolvers.normal is deprecated.\n" + 'Use compiler.resolverFactory.plugin("resolver normal", resolver => {\n resolver.apply(/* … */);\n}); instead.')
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},
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loader: {
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plugins: util.deprecate((hook, fn) => {
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this.resolverFactory.plugin("resolver loader", resolver => {
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resolver.plugin(hook, fn);
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});
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}, "webpack: Using compiler.resolvers.loader is deprecated.\n" + 'Use compiler.resolverFactory.plugin("resolver loader", resolver => {\n resolver.plugin(/* … */);\n}); instead.'),
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apply: util.deprecate((...args) => {
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this.resolverFactory.plugin("resolver loader", resolver => {
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resolver.apply(...args);
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});
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}, "webpack: Using compiler.resolvers.loader is deprecated.\n" + 'Use compiler.resolverFactory.plugin("resolver loader", resolver => {\n resolver.apply(/* … */);\n}); instead.')
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},
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context: {
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plugins: util.deprecate((hook, fn) => {
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this.resolverFactory.plugin("resolver context", resolver => {
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resolver.plugin(hook, fn);
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});
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}, "webpack: Using compiler.resolvers.context is deprecated.\n" + 'Use compiler.resolverFactory.plugin("resolver context", resolver => {\n resolver.plugin(/* … */);\n}); instead.'),
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apply: util.deprecate((...args) => {
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this.resolverFactory.plugin("resolver context", resolver => {
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resolver.apply(...args);
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});
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}, "webpack: Using compiler.resolvers.context is deprecated.\n" + 'Use compiler.resolverFactory.plugin("resolver context", resolver => {\n resolver.apply(/* … */);\n}); instead.')
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}
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};
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/** @type {WebpackOptions} */
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this.options = /** @type {WebpackOptions} */ ({});
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this.context = context;
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this.requestShortener = new RequestShortener(context);
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/** @type {boolean} */
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this.running = false;
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/** @type {boolean} */
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this.watchMode = false;
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/** @private @type {WeakMap<Source, { sizeOnlySource: SizeOnlySource, writtenTo: Map<string, number> }>} */
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this._assetEmittingSourceCache = new WeakMap();
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/** @private @type {Map<string, number>} */
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this._assetEmittingWrittenFiles = new Map();
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}
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/**
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* @param {string | (function(): string)} name name of the logger, or function called once to get the logger name
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* @returns {Logger} a logger with that name
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*/
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getInfrastructureLogger(name) {
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if (!name) {
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throw new TypeError(
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"Compiler.getInfrastructureLogger(name) called without a name"
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);
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}
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return new Logger((type, args) => {
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if (typeof name === "function") {
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name = name();
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if (!name) {
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throw new TypeError(
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"Compiler.getInfrastructureLogger(name) called with a function not returning a name"
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);
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}
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}
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if (this.hooks.infrastructureLog.call(name, type, args) === undefined) {
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if (this.infrastructureLogger !== undefined) {
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this.infrastructureLogger(name, type, args);
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}
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}
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});
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}
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watch(watchOptions, handler) {
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if (this.running) return handler(new ConcurrentCompilationError());
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this.running = true;
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this.watchMode = true;
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this.fileTimestamps = new Map();
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this.contextTimestamps = new Map();
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this.removedFiles = new Set();
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return new Watching(this, watchOptions, handler);
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}
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run(callback) {
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if (this.running) return callback(new ConcurrentCompilationError());
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const finalCallback = (err, stats) => {
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this.running = false;
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if (err) {
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this.hooks.failed.call(err);
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}
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if (callback !== undefined) return callback(err, stats);
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};
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const startTime = Date.now();
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this.running = true;
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const onCompiled = (err, compilation) => {
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if (err) return finalCallback(err);
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if (this.hooks.shouldEmit.call(compilation) === false) {
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const stats = new Stats(compilation);
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stats.startTime = startTime;
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stats.endTime = Date.now();
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this.hooks.done.callAsync(stats, err => {
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if (err) return finalCallback(err);
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return finalCallback(null, stats);
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});
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return;
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}
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this.emitAssets(compilation, err => {
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if (err) return finalCallback(err);
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if (compilation.hooks.needAdditionalPass.call()) {
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compilation.needAdditionalPass = true;
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const stats = new Stats(compilation);
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stats.startTime = startTime;
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stats.endTime = Date.now();
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this.hooks.done.callAsync(stats, err => {
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if (err) return finalCallback(err);
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this.hooks.additionalPass.callAsync(err => {
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if (err) return finalCallback(err);
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this.compile(onCompiled);
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});
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});
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return;
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}
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this.emitRecords(err => {
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if (err) return finalCallback(err);
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const stats = new Stats(compilation);
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stats.startTime = startTime;
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stats.endTime = Date.now();
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this.hooks.done.callAsync(stats, err => {
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if (err) return finalCallback(err);
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return finalCallback(null, stats);
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});
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});
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});
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};
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this.hooks.beforeRun.callAsync(this, err => {
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if (err) return finalCallback(err);
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this.hooks.run.callAsync(this, err => {
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if (err) return finalCallback(err);
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this.readRecords(err => {
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if (err) return finalCallback(err);
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this.compile(onCompiled);
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});
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});
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});
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}
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runAsChild(callback) {
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this.compile((err, compilation) => {
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if (err) return callback(err);
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this.parentCompilation.children.push(compilation);
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for (const { name, source, info } of compilation.getAssets()) {
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this.parentCompilation.emitAsset(name, source, info);
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}
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const entries = Array.from(
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compilation.entrypoints.values(),
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ep => ep.chunks
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).reduce((array, chunks) => {
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return array.concat(chunks);
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}, []);
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return callback(null, entries, compilation);
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});
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}
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purgeInputFileSystem() {
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if (this.inputFileSystem && this.inputFileSystem.purge) {
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this.inputFileSystem.purge();
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}
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}
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emitAssets(compilation, callback) {
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let outputPath;
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const emitFiles = err => {
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if (err) return callback(err);
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asyncLib.forEachLimit(
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compilation.getAssets(),
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15,
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({ name: file, source }, callback) => {
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let targetFile = file;
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const queryStringIdx = targetFile.indexOf("?");
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if (queryStringIdx >= 0) {
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targetFile = targetFile.substr(0, queryStringIdx);
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}
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const writeOut = err => {
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if (err) return callback(err);
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const targetPath = this.outputFileSystem.join(
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outputPath,
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targetFile
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);
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// TODO webpack 5 remove futureEmitAssets option and make it on by default
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if (this.options.output.futureEmitAssets) {
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// check if the target file has already been written by this Compiler
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const targetFileGeneration = this._assetEmittingWrittenFiles.get(
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targetPath
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);
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// create an cache entry for this Source if not already existing
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let cacheEntry = this._assetEmittingSourceCache.get(source);
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if (cacheEntry === undefined) {
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cacheEntry = {
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sizeOnlySource: undefined,
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writtenTo: new Map()
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};
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this._assetEmittingSourceCache.set(source, cacheEntry);
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}
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// if the target file has already been written
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if (targetFileGeneration !== undefined) {
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// check if the Source has been written to this target file
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const writtenGeneration = cacheEntry.writtenTo.get(targetPath);
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if (writtenGeneration === targetFileGeneration) {
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// if yes, we skip writing the file
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// as it's already there
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// (we assume one doesn't remove files while the Compiler is running)
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compilation.updateAsset(file, cacheEntry.sizeOnlySource, {
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size: cacheEntry.sizeOnlySource.size()
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});
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return callback();
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}
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}
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// TODO webpack 5: if info.immutable check if file already exists in output
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// skip emitting if it's already there
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// get the binary (Buffer) content from the Source
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/** @type {Buffer} */
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let content;
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if (typeof source.buffer === "function") {
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content = source.buffer();
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} else {
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const bufferOrString = source.source();
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if (Buffer.isBuffer(bufferOrString)) {
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content = bufferOrString;
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} else {
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content = Buffer.from(bufferOrString, "utf8");
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}
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}
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// Create a replacement resource which only allows to ask for size
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// This allows to GC all memory allocated by the Source
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// (expect when the Source is stored in any other cache)
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cacheEntry.sizeOnlySource = new SizeOnlySource(content.length);
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compilation.updateAsset(file, cacheEntry.sizeOnlySource, {
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size: content.length
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});
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// Write the file to output file system
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this.outputFileSystem.writeFile(targetPath, content, err => {
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if (err) return callback(err);
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// information marker that the asset has been emitted
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compilation.emittedAssets.add(file);
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// cache the information that the Source has been written to that location
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const newGeneration =
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targetFileGeneration === undefined
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? 1
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: targetFileGeneration + 1;
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cacheEntry.writtenTo.set(targetPath, newGeneration);
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this._assetEmittingWrittenFiles.set(targetPath, newGeneration);
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this.hooks.assetEmitted.callAsync(file, content, callback);
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});
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} else {
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if (source.existsAt === targetPath) {
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source.emitted = false;
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return callback();
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}
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let content = source.source();
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if (!Buffer.isBuffer(content)) {
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content = Buffer.from(content, "utf8");
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}
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source.existsAt = targetPath;
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source.emitted = true;
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this.outputFileSystem.writeFile(targetPath, content, err => {
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if (err) return callback(err);
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this.hooks.assetEmitted.callAsync(file, content, callback);
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});
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}
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};
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if (targetFile.match(/\/|\\/)) {
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const dir = path.dirname(targetFile);
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this.outputFileSystem.mkdirp(
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this.outputFileSystem.join(outputPath, dir),
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writeOut
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);
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} else {
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writeOut();
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}
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},
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err => {
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if (err) return callback(err);
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this.hooks.afterEmit.callAsync(compilation, err => {
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if (err) return callback(err);
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return callback();
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});
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}
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);
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};
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this.hooks.emit.callAsync(compilation, err => {
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if (err) return callback(err);
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outputPath = compilation.getPath(this.outputPath);
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this.outputFileSystem.mkdirp(outputPath, emitFiles);
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});
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}
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emitRecords(callback) {
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if (!this.recordsOutputPath) return callback();
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const idx1 = this.recordsOutputPath.lastIndexOf("/");
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const idx2 = this.recordsOutputPath.lastIndexOf("\\");
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let recordsOutputPathDirectory = null;
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if (idx1 > idx2) {
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recordsOutputPathDirectory = this.recordsOutputPath.substr(0, idx1);
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} else if (idx1 < idx2) {
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recordsOutputPathDirectory = this.recordsOutputPath.substr(0, idx2);
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}
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const writeFile = () => {
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this.outputFileSystem.writeFile(
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this.recordsOutputPath,
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JSON.stringify(this.records, undefined, 2),
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callback
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);
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};
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if (!recordsOutputPathDirectory) {
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return writeFile();
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}
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this.outputFileSystem.mkdirp(recordsOutputPathDirectory, err => {
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if (err) return callback(err);
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writeFile();
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});
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}
|
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|
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readRecords(callback) {
|
|
if (!this.recordsInputPath) {
|
|
this.records = {};
|
|
return callback();
|
|
}
|
|
this.inputFileSystem.stat(this.recordsInputPath, err => {
|
|
// It doesn't exist
|
|
// We can ignore this.
|
|
if (err) return callback();
|
|
|
|
this.inputFileSystem.readFile(this.recordsInputPath, (err, content) => {
|
|
if (err) return callback(err);
|
|
|
|
try {
|
|
this.records = parseJson(content.toString("utf-8"));
|
|
} catch (e) {
|
|
e.message = "Cannot parse records: " + e.message;
|
|
return callback(e);
|
|
}
|
|
|
|
return callback();
|
|
});
|
|
});
|
|
}
|
|
|
|
createChildCompiler(
|
|
compilation,
|
|
compilerName,
|
|
compilerIndex,
|
|
outputOptions,
|
|
plugins
|
|
) {
|
|
const childCompiler = new Compiler(this.context);
|
|
if (Array.isArray(plugins)) {
|
|
for (const plugin of plugins) {
|
|
plugin.apply(childCompiler);
|
|
}
|
|
}
|
|
for (const name in this.hooks) {
|
|
if (
|
|
![
|
|
"make",
|
|
"compile",
|
|
"emit",
|
|
"afterEmit",
|
|
"invalid",
|
|
"done",
|
|
"thisCompilation"
|
|
].includes(name)
|
|
) {
|
|
if (childCompiler.hooks[name]) {
|
|
childCompiler.hooks[name].taps = this.hooks[name].taps.slice();
|
|
}
|
|
}
|
|
}
|
|
childCompiler.name = compilerName;
|
|
childCompiler.outputPath = this.outputPath;
|
|
childCompiler.inputFileSystem = this.inputFileSystem;
|
|
childCompiler.outputFileSystem = null;
|
|
childCompiler.resolverFactory = this.resolverFactory;
|
|
childCompiler.fileTimestamps = this.fileTimestamps;
|
|
childCompiler.contextTimestamps = this.contextTimestamps;
|
|
|
|
const relativeCompilerName = makePathsRelative(this.context, compilerName);
|
|
if (!this.records[relativeCompilerName]) {
|
|
this.records[relativeCompilerName] = [];
|
|
}
|
|
if (this.records[relativeCompilerName][compilerIndex]) {
|
|
childCompiler.records = this.records[relativeCompilerName][compilerIndex];
|
|
} else {
|
|
this.records[relativeCompilerName].push((childCompiler.records = {}));
|
|
}
|
|
|
|
childCompiler.options = Object.create(this.options);
|
|
childCompiler.options.output = Object.create(childCompiler.options.output);
|
|
for (const name in outputOptions) {
|
|
childCompiler.options.output[name] = outputOptions[name];
|
|
}
|
|
childCompiler.parentCompilation = compilation;
|
|
|
|
compilation.hooks.childCompiler.call(
|
|
childCompiler,
|
|
compilerName,
|
|
compilerIndex
|
|
);
|
|
|
|
return childCompiler;
|
|
}
|
|
|
|
isChild() {
|
|
return !!this.parentCompilation;
|
|
}
|
|
|
|
createCompilation() {
|
|
return new Compilation(this);
|
|
}
|
|
|
|
newCompilation(params) {
|
|
const compilation = this.createCompilation();
|
|
compilation.fileTimestamps = this.fileTimestamps;
|
|
compilation.contextTimestamps = this.contextTimestamps;
|
|
compilation.name = this.name;
|
|
compilation.records = this.records;
|
|
compilation.compilationDependencies = params.compilationDependencies;
|
|
this.hooks.thisCompilation.call(compilation, params);
|
|
this.hooks.compilation.call(compilation, params);
|
|
return compilation;
|
|
}
|
|
|
|
createNormalModuleFactory() {
|
|
const normalModuleFactory = new NormalModuleFactory(
|
|
this.options.context,
|
|
this.resolverFactory,
|
|
this.options.module || {}
|
|
);
|
|
this.hooks.normalModuleFactory.call(normalModuleFactory);
|
|
return normalModuleFactory;
|
|
}
|
|
|
|
createContextModuleFactory() {
|
|
const contextModuleFactory = new ContextModuleFactory(this.resolverFactory);
|
|
this.hooks.contextModuleFactory.call(contextModuleFactory);
|
|
return contextModuleFactory;
|
|
}
|
|
|
|
newCompilationParams() {
|
|
const params = {
|
|
normalModuleFactory: this.createNormalModuleFactory(),
|
|
contextModuleFactory: this.createContextModuleFactory(),
|
|
compilationDependencies: new Set()
|
|
};
|
|
return params;
|
|
}
|
|
|
|
compile(callback) {
|
|
const params = this.newCompilationParams();
|
|
this.hooks.beforeCompile.callAsync(params, err => {
|
|
if (err) return callback(err);
|
|
|
|
this.hooks.compile.call(params);
|
|
|
|
const compilation = this.newCompilation(params);
|
|
|
|
this.hooks.make.callAsync(compilation, err => {
|
|
if (err) return callback(err);
|
|
|
|
compilation.finish(err => {
|
|
if (err) return callback(err);
|
|
|
|
compilation.seal(err => {
|
|
if (err) return callback(err);
|
|
|
|
this.hooks.afterCompile.callAsync(compilation, err => {
|
|
if (err) return callback(err);
|
|
|
|
return callback(null, compilation);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
}
|
|
}
|
|
|
|
module.exports = Compiler;
|
|
|
|
class SizeOnlySource extends Source {
|
|
constructor(size) {
|
|
super();
|
|
this._size = size;
|
|
}
|
|
|
|
_error() {
|
|
return new Error(
|
|
"Content and Map of this Source is no longer available (only size() is supported)"
|
|
);
|
|
}
|
|
|
|
size() {
|
|
return this._size;
|
|
}
|
|
|
|
/**
|
|
* @param {any} options options
|
|
* @returns {string} the source
|
|
*/
|
|
source(options) {
|
|
throw this._error();
|
|
}
|
|
|
|
node() {
|
|
throw this._error();
|
|
}
|
|
|
|
listMap() {
|
|
throw this._error();
|
|
}
|
|
|
|
map() {
|
|
throw this._error();
|
|
}
|
|
|
|
listNode() {
|
|
throw this._error();
|
|
}
|
|
|
|
updateHash() {
|
|
throw this._error();
|
|
}
|
|
}
|