608 lines
18 KiB
JavaScript
608 lines
18 KiB
JavaScript
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/*
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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 asyncLib = require("neo-async");
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const { ConcatSource, RawSource } = require("webpack-sources");
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const Compilation = require("./Compilation");
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const ModuleFilenameHelpers = require("./ModuleFilenameHelpers");
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const ProgressPlugin = require("./ProgressPlugin");
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const SourceMapDevToolModuleOptionsPlugin = require("./SourceMapDevToolModuleOptionsPlugin");
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const createSchemaValidation = require("./util/create-schema-validation");
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const createHash = require("./util/createHash");
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const { relative, dirname } = require("./util/fs");
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const { makePathsAbsolute } = require("./util/identifier");
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/** @typedef {import("webpack-sources").MapOptions} MapOptions */
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/** @typedef {import("webpack-sources").Source} Source */
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/** @typedef {import("../declarations/plugins/SourceMapDevToolPlugin").SourceMapDevToolPluginOptions} SourceMapDevToolPluginOptions */
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/** @typedef {import("./Cache").Etag} Etag */
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/** @typedef {import("./CacheFacade").ItemCacheFacade} ItemCacheFacade */
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/** @typedef {import("./Chunk")} Chunk */
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/** @typedef {import("./Compilation").Asset} Asset */
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/** @typedef {import("./Compilation").AssetInfo} AssetInfo */
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/** @typedef {import("./Compiler")} Compiler */
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/** @typedef {import("./Module")} Module */
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/** @typedef {import("./NormalModule").SourceMap} SourceMap */
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/** @typedef {import("./TemplatedPathPlugin").TemplatePath} TemplatePath */
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/** @typedef {import("./util/Hash")} Hash */
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/** @typedef {import("./util/createHash").Algorithm} Algorithm */
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/** @typedef {import("./util/fs").OutputFileSystem} OutputFileSystem */
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const validate = createSchemaValidation(
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require("../schemas/plugins/SourceMapDevToolPlugin.check.js"),
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() => require("../schemas/plugins/SourceMapDevToolPlugin.json"),
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{
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name: "SourceMap DevTool Plugin",
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baseDataPath: "options"
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}
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);
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/**
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* @typedef {object} SourceMapTask
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* @property {Source} asset
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* @property {AssetInfo} assetInfo
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* @property {(string | Module)[]} modules
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* @property {string} source
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* @property {string} file
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* @property {SourceMap} sourceMap
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* @property {ItemCacheFacade} cacheItem cache item
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*/
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const METACHARACTERS_REGEXP = /[-[\]\\/{}()*+?.^$|]/g;
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const CONTENT_HASH_DETECT_REGEXP = /\[contenthash(:\w+)?\]/;
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const CSS_AND_JS_MODULE_EXTENSIONS_REGEXP = /\.((c|m)?js|css)($|\?)/i;
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const CSS_EXTENSION_DETECT_REGEXP = /\.css($|\?)/i;
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const MAP_URL_COMMENT_REGEXP = /\[map\]/g;
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const URL_COMMENT_REGEXP = /\[url\]/g;
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const URL_FORMATTING_REGEXP = /^\n\/\/(.*)$/;
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/**
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* Reset's .lastIndex of stateful Regular Expressions
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* For when `test` or `exec` is called on them
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* @param {RegExp} regexp Stateful Regular Expression to be reset
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* @returns {void}
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*/
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const resetRegexpState = regexp => {
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regexp.lastIndex = -1;
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};
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/**
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* Escapes regular expression metacharacters
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* @param {string} str String to quote
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* @returns {string} Escaped string
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*/
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const quoteMeta = str => str.replace(METACHARACTERS_REGEXP, "\\$&");
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/**
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* Creating {@link SourceMapTask} for given file
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* @param {string} file current compiled file
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* @param {Source} asset the asset
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* @param {AssetInfo} assetInfo the asset info
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* @param {MapOptions} options source map options
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* @param {Compilation} compilation compilation instance
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* @param {ItemCacheFacade} cacheItem cache item
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* @returns {SourceMapTask | undefined} created task instance or `undefined`
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*/
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const getTaskForFile = (
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file,
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asset,
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assetInfo,
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options,
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compilation,
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cacheItem
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) => {
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let source;
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/** @type {SourceMap} */
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let sourceMap;
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/**
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* Check if asset can build source map
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*/
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if (asset.sourceAndMap) {
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const sourceAndMap = asset.sourceAndMap(options);
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sourceMap = /** @type {SourceMap} */ (sourceAndMap.map);
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source = sourceAndMap.source;
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} else {
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sourceMap = /** @type {SourceMap} */ (asset.map(options));
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source = asset.source();
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}
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if (!sourceMap || typeof source !== "string") return;
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const context = /** @type {string} */ (compilation.options.context);
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const root = compilation.compiler.root;
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const cachedAbsolutify = makePathsAbsolute.bindContextCache(context, root);
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const modules = sourceMap.sources.map(source => {
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if (!source.startsWith("webpack://")) return source;
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source = cachedAbsolutify(source.slice(10));
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const module = compilation.findModule(source);
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return module || source;
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});
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return {
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file,
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asset,
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source,
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assetInfo,
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sourceMap,
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modules,
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cacheItem
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};
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};
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class SourceMapDevToolPlugin {
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/**
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* @param {SourceMapDevToolPluginOptions} [options] options object
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* @throws {Error} throws error, if got more than 1 arguments
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*/
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constructor(options = {}) {
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validate(options);
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this.sourceMapFilename = /** @type {string | false} */ (options.filename);
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/** @type {false | TemplatePath}} */
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this.sourceMappingURLComment =
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options.append === false
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? false
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: // eslint-disable-next-line no-useless-concat
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options.append || "\n//# source" + "MappingURL=[url]";
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/** @type {string | Function} */
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this.moduleFilenameTemplate =
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options.moduleFilenameTemplate || "webpack://[namespace]/[resourcePath]";
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/** @type {string | Function} */
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this.fallbackModuleFilenameTemplate =
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options.fallbackModuleFilenameTemplate ||
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"webpack://[namespace]/[resourcePath]?[hash]";
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/** @type {string} */
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this.namespace = options.namespace || "";
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/** @type {SourceMapDevToolPluginOptions} */
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this.options = options;
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}
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/**
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* Apply the plugin
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* @param {Compiler} compiler compiler instance
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* @returns {void}
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*/
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apply(compiler) {
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const outputFs = /** @type {OutputFileSystem} */ (
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compiler.outputFileSystem
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);
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const sourceMapFilename = this.sourceMapFilename;
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const sourceMappingURLComment = this.sourceMappingURLComment;
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const moduleFilenameTemplate = this.moduleFilenameTemplate;
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const namespace = this.namespace;
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const fallbackModuleFilenameTemplate = this.fallbackModuleFilenameTemplate;
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const requestShortener = compiler.requestShortener;
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const options = this.options;
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options.test = options.test || CSS_AND_JS_MODULE_EXTENSIONS_REGEXP;
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const matchObject = ModuleFilenameHelpers.matchObject.bind(
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undefined,
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options
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);
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compiler.hooks.compilation.tap("SourceMapDevToolPlugin", compilation => {
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new SourceMapDevToolModuleOptionsPlugin(options).apply(compilation);
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compilation.hooks.processAssets.tapAsync(
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{
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name: "SourceMapDevToolPlugin",
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stage: Compilation.PROCESS_ASSETS_STAGE_DEV_TOOLING,
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additionalAssets: true
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},
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(assets, callback) => {
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const chunkGraph = compilation.chunkGraph;
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const cache = compilation.getCache("SourceMapDevToolPlugin");
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/** @type {Map<string | Module, string>} */
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const moduleToSourceNameMapping = new Map();
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/**
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* @type {Function}
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* @returns {void}
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*/
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const reportProgress =
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ProgressPlugin.getReporter(compilation.compiler) || (() => {});
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/** @type {Map<string, Chunk>} */
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const fileToChunk = new Map();
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for (const chunk of compilation.chunks) {
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for (const file of chunk.files) {
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fileToChunk.set(file, chunk);
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}
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for (const file of chunk.auxiliaryFiles) {
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fileToChunk.set(file, chunk);
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}
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}
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/** @type {string[]} */
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const files = [];
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for (const file of Object.keys(assets)) {
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if (matchObject(file)) {
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files.push(file);
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}
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}
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reportProgress(0);
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/** @type {SourceMapTask[]} */
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const tasks = [];
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let fileIndex = 0;
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asyncLib.each(
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files,
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(file, callback) => {
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const asset =
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/** @type {Readonly<Asset>} */
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(compilation.getAsset(file));
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if (asset.info.related && asset.info.related.sourceMap) {
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fileIndex++;
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return callback();
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}
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const cacheItem = cache.getItemCache(
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file,
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cache.mergeEtags(
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cache.getLazyHashedEtag(asset.source),
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namespace
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)
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);
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cacheItem.get((err, cacheEntry) => {
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if (err) {
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return callback(err);
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}
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/**
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* If presented in cache, reassigns assets. Cache assets already have source maps.
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*/
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if (cacheEntry) {
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const { assets, assetsInfo } = cacheEntry;
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for (const cachedFile of Object.keys(assets)) {
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if (cachedFile === file) {
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compilation.updateAsset(
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cachedFile,
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assets[cachedFile],
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assetsInfo[cachedFile]
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);
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} else {
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compilation.emitAsset(
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cachedFile,
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assets[cachedFile],
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assetsInfo[cachedFile]
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);
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}
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/**
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* Add file to chunk, if not presented there
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*/
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if (cachedFile !== file) {
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const chunk = fileToChunk.get(file);
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if (chunk !== undefined)
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chunk.auxiliaryFiles.add(cachedFile);
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}
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}
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reportProgress(
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(0.5 * ++fileIndex) / files.length,
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file,
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"restored cached SourceMap"
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);
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return callback();
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}
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reportProgress(
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(0.5 * fileIndex) / files.length,
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file,
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"generate SourceMap"
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);
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/** @type {SourceMapTask | undefined} */
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const task = getTaskForFile(
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file,
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asset.source,
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asset.info,
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{
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module: options.module,
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columns: options.columns
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},
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compilation,
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cacheItem
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);
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if (task) {
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const modules = task.modules;
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for (let idx = 0; idx < modules.length; idx++) {
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const module = modules[idx];
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if (
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typeof module === "string" &&
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/^(data|https?):/.test(module)
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) {
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moduleToSourceNameMapping.set(module, module);
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continue;
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}
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if (!moduleToSourceNameMapping.get(module)) {
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moduleToSourceNameMapping.set(
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module,
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ModuleFilenameHelpers.createFilename(
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module,
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{
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moduleFilenameTemplate,
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namespace
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},
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{
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requestShortener,
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chunkGraph,
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hashFunction: compilation.outputOptions.hashFunction
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}
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)
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);
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}
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}
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tasks.push(task);
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}
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reportProgress(
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(0.5 * ++fileIndex) / files.length,
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file,
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"generated SourceMap"
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);
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callback();
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});
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},
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err => {
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if (err) {
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return callback(err);
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}
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reportProgress(0.5, "resolve sources");
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/** @type {Set<string>} */
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const usedNamesSet = new Set(moduleToSourceNameMapping.values());
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/** @type {Set<string>} */
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const conflictDetectionSet = new Set();
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/**
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* all modules in defined order (longest identifier first)
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* @type {Array<string | Module>}
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*/
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const allModules = Array.from(
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moduleToSourceNameMapping.keys()
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).sort((a, b) => {
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const ai = typeof a === "string" ? a : a.identifier();
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const bi = typeof b === "string" ? b : b.identifier();
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return ai.length - bi.length;
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});
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// find modules with conflicting source names
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for (let idx = 0; idx < allModules.length; idx++) {
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const module = allModules[idx];
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let sourceName =
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/** @type {string} */
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(moduleToSourceNameMapping.get(module));
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let hasName = conflictDetectionSet.has(sourceName);
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if (!hasName) {
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conflictDetectionSet.add(sourceName);
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continue;
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}
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// try the fallback name first
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sourceName = ModuleFilenameHelpers.createFilename(
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module,
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{
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moduleFilenameTemplate: fallbackModuleFilenameTemplate,
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|
namespace
|
||
|
|
},
|
||
|
|
{
|
||
|
|
requestShortener,
|
||
|
|
chunkGraph,
|
||
|
|
hashFunction: compilation.outputOptions.hashFunction
|
||
|
|
}
|
||
|
|
);
|
||
|
|
hasName = usedNamesSet.has(sourceName);
|
||
|
|
if (!hasName) {
|
||
|
|
moduleToSourceNameMapping.set(module, sourceName);
|
||
|
|
usedNamesSet.add(sourceName);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// otherwise just append stars until we have a valid name
|
||
|
|
while (hasName) {
|
||
|
|
sourceName += "*";
|
||
|
|
hasName = usedNamesSet.has(sourceName);
|
||
|
|
}
|
||
|
|
moduleToSourceNameMapping.set(module, sourceName);
|
||
|
|
usedNamesSet.add(sourceName);
|
||
|
|
}
|
||
|
|
|
||
|
|
let taskIndex = 0;
|
||
|
|
|
||
|
|
asyncLib.each(
|
||
|
|
tasks,
|
||
|
|
(task, callback) => {
|
||
|
|
const assets = Object.create(null);
|
||
|
|
const assetsInfo = Object.create(null);
|
||
|
|
const file = task.file;
|
||
|
|
const chunk = fileToChunk.get(file);
|
||
|
|
const sourceMap = task.sourceMap;
|
||
|
|
const source = task.source;
|
||
|
|
const modules = task.modules;
|
||
|
|
|
||
|
|
reportProgress(
|
||
|
|
0.5 + (0.5 * taskIndex) / tasks.length,
|
||
|
|
file,
|
||
|
|
"attach SourceMap"
|
||
|
|
);
|
||
|
|
|
||
|
|
const moduleFilenames = modules.map(m =>
|
||
|
|
moduleToSourceNameMapping.get(m)
|
||
|
|
);
|
||
|
|
sourceMap.sources = /** @type {string[]} */ (moduleFilenames);
|
||
|
|
if (options.noSources) {
|
||
|
|
sourceMap.sourcesContent = undefined;
|
||
|
|
}
|
||
|
|
sourceMap.sourceRoot = options.sourceRoot || "";
|
||
|
|
sourceMap.file = file;
|
||
|
|
const usesContentHash =
|
||
|
|
sourceMapFilename &&
|
||
|
|
CONTENT_HASH_DETECT_REGEXP.test(sourceMapFilename);
|
||
|
|
|
||
|
|
resetRegexpState(CONTENT_HASH_DETECT_REGEXP);
|
||
|
|
|
||
|
|
// If SourceMap and asset uses contenthash, avoid a circular dependency by hiding hash in `file`
|
||
|
|
if (usesContentHash && task.assetInfo.contenthash) {
|
||
|
|
const contenthash = task.assetInfo.contenthash;
|
||
|
|
const pattern = Array.isArray(contenthash)
|
||
|
|
? contenthash.map(quoteMeta).join("|")
|
||
|
|
: quoteMeta(contenthash);
|
||
|
|
sourceMap.file = sourceMap.file.replace(
|
||
|
|
new RegExp(pattern, "g"),
|
||
|
|
m => "x".repeat(m.length)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/** @type {false | TemplatePath} */
|
||
|
|
let currentSourceMappingURLComment = sourceMappingURLComment;
|
||
|
|
const cssExtensionDetected =
|
||
|
|
CSS_EXTENSION_DETECT_REGEXP.test(file);
|
||
|
|
resetRegexpState(CSS_EXTENSION_DETECT_REGEXP);
|
||
|
|
if (
|
||
|
|
currentSourceMappingURLComment !== false &&
|
||
|
|
typeof currentSourceMappingURLComment !== "function" &&
|
||
|
|
cssExtensionDetected
|
||
|
|
) {
|
||
|
|
currentSourceMappingURLComment =
|
||
|
|
currentSourceMappingURLComment.replace(
|
||
|
|
URL_FORMATTING_REGEXP,
|
||
|
|
"\n/*$1*/"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
const sourceMapString = JSON.stringify(sourceMap);
|
||
|
|
if (sourceMapFilename) {
|
||
|
|
const filename = file;
|
||
|
|
const sourceMapContentHash =
|
||
|
|
/** @type {string} */
|
||
|
|
(
|
||
|
|
usesContentHash &&
|
||
|
|
createHash(
|
||
|
|
/** @type {Algorithm} */
|
||
|
|
(compilation.outputOptions.hashFunction)
|
||
|
|
)
|
||
|
|
.update(sourceMapString)
|
||
|
|
.digest("hex")
|
||
|
|
);
|
||
|
|
const pathParams = {
|
||
|
|
chunk,
|
||
|
|
filename: options.fileContext
|
||
|
|
? relative(
|
||
|
|
outputFs,
|
||
|
|
`/${options.fileContext}`,
|
||
|
|
`/${filename}`
|
||
|
|
)
|
||
|
|
: filename,
|
||
|
|
contentHash: sourceMapContentHash
|
||
|
|
};
|
||
|
|
const { path: sourceMapFile, info: sourceMapInfo } =
|
||
|
|
compilation.getPathWithInfo(
|
||
|
|
sourceMapFilename,
|
||
|
|
pathParams
|
||
|
|
);
|
||
|
|
const sourceMapUrl = options.publicPath
|
||
|
|
? options.publicPath + sourceMapFile
|
||
|
|
: relative(
|
||
|
|
outputFs,
|
||
|
|
dirname(outputFs, `/${file}`),
|
||
|
|
`/${sourceMapFile}`
|
||
|
|
);
|
||
|
|
/** @type {Source} */
|
||
|
|
let asset = new RawSource(source);
|
||
|
|
if (currentSourceMappingURLComment !== false) {
|
||
|
|
// Add source map url to compilation asset, if currentSourceMappingURLComment is set
|
||
|
|
asset = new ConcatSource(
|
||
|
|
asset,
|
||
|
|
compilation.getPath(currentSourceMappingURLComment, {
|
||
|
|
url: sourceMapUrl,
|
||
|
|
...pathParams
|
||
|
|
})
|
||
|
|
);
|
||
|
|
}
|
||
|
|
const assetInfo = {
|
||
|
|
related: { sourceMap: sourceMapFile }
|
||
|
|
};
|
||
|
|
assets[file] = asset;
|
||
|
|
assetsInfo[file] = assetInfo;
|
||
|
|
compilation.updateAsset(file, asset, assetInfo);
|
||
|
|
// Add source map file to compilation assets and chunk files
|
||
|
|
const sourceMapAsset = new RawSource(sourceMapString);
|
||
|
|
const sourceMapAssetInfo = {
|
||
|
|
...sourceMapInfo,
|
||
|
|
development: true
|
||
|
|
};
|
||
|
|
assets[sourceMapFile] = sourceMapAsset;
|
||
|
|
assetsInfo[sourceMapFile] = sourceMapAssetInfo;
|
||
|
|
compilation.emitAsset(
|
||
|
|
sourceMapFile,
|
||
|
|
sourceMapAsset,
|
||
|
|
sourceMapAssetInfo
|
||
|
|
);
|
||
|
|
if (chunk !== undefined)
|
||
|
|
chunk.auxiliaryFiles.add(sourceMapFile);
|
||
|
|
} else {
|
||
|
|
if (currentSourceMappingURLComment === false) {
|
||
|
|
throw new Error(
|
||
|
|
"SourceMapDevToolPlugin: append can't be false when no filename is provided"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
if (typeof currentSourceMappingURLComment === "function") {
|
||
|
|
throw new Error(
|
||
|
|
"SourceMapDevToolPlugin: append can't be a function when no filename is provided"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Add source map as data url to asset
|
||
|
|
*/
|
||
|
|
const asset = new ConcatSource(
|
||
|
|
new RawSource(source),
|
||
|
|
currentSourceMappingURLComment
|
||
|
|
.replace(MAP_URL_COMMENT_REGEXP, () => sourceMapString)
|
||
|
|
.replace(
|
||
|
|
URL_COMMENT_REGEXP,
|
||
|
|
() =>
|
||
|
|
`data:application/json;charset=utf-8;base64,${Buffer.from(
|
||
|
|
sourceMapString,
|
||
|
|
"utf-8"
|
||
|
|
).toString("base64")}`
|
||
|
|
)
|
||
|
|
);
|
||
|
|
assets[file] = asset;
|
||
|
|
assetsInfo[file] = undefined;
|
||
|
|
compilation.updateAsset(file, asset);
|
||
|
|
}
|
||
|
|
|
||
|
|
task.cacheItem.store({ assets, assetsInfo }, err => {
|
||
|
|
reportProgress(
|
||
|
|
0.5 + (0.5 * ++taskIndex) / tasks.length,
|
||
|
|
task.file,
|
||
|
|
"attached SourceMap"
|
||
|
|
);
|
||
|
|
|
||
|
|
if (err) {
|
||
|
|
return callback(err);
|
||
|
|
}
|
||
|
|
callback();
|
||
|
|
});
|
||
|
|
},
|
||
|
|
err => {
|
||
|
|
reportProgress(1);
|
||
|
|
callback(err);
|
||
|
|
}
|
||
|
|
);
|
||
|
|
}
|
||
|
|
);
|
||
|
|
}
|
||
|
|
);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = SourceMapDevToolPlugin;
|