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89 lines
2.5 KiB
89 lines
2.5 KiB
4 weeks ago
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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 {
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compareModulesByPreOrderIndexOrIdentifier
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} = require("../util/comparators");
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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 {
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getUsedModuleIdsAndModules,
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getFullModuleName
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} = require("./IdHelpers");
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/** @typedef {import("../../declarations/plugins/HashedModuleIdsPlugin").HashedModuleIdsPluginOptions} HashedModuleIdsPluginOptions */
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/** @typedef {import("../Compiler")} Compiler */
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const validate = createSchemaValidation(
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require("../../schemas/plugins/HashedModuleIdsPlugin.check.js"),
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() => require("../../schemas/plugins/HashedModuleIdsPlugin.json"),
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{
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name: "Hashed Module Ids Plugin",
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baseDataPath: "options"
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}
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);
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class HashedModuleIdsPlugin {
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/**
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* @param {HashedModuleIdsPluginOptions=} options options object
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*/
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constructor(options = {}) {
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validate(options);
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/** @type {HashedModuleIdsPluginOptions} */
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this.options = {
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context: undefined,
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hashFunction: "md4",
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hashDigest: "base64",
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hashDigestLength: 4,
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...options
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};
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}
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/**
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* Apply the plugin
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* @param {Compiler} compiler the compiler instance
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* @returns {void}
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*/
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apply(compiler) {
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const options = this.options;
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compiler.hooks.compilation.tap("HashedModuleIdsPlugin", compilation => {
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compilation.hooks.moduleIds.tap("HashedModuleIdsPlugin", () => {
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const chunkGraph = compilation.chunkGraph;
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const context = this.options.context
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? this.options.context
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: compiler.context;
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const [usedIds, modules] = getUsedModuleIdsAndModules(compilation);
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const modulesInNaturalOrder = modules.sort(
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compareModulesByPreOrderIndexOrIdentifier(compilation.moduleGraph)
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);
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for (const module of modulesInNaturalOrder) {
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const ident = getFullModuleName(module, context, compiler.root);
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const hash = createHash(
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/** @type {NonNullable<HashedModuleIdsPluginOptions["hashFunction"]>} */ (
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options.hashFunction
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)
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);
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hash.update(ident || "");
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const hashId = /** @type {string} */ (
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hash.digest(options.hashDigest)
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);
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let len = options.hashDigestLength;
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while (usedIds.has(hashId.slice(0, len)))
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/** @type {number} */ (len)++;
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const moduleId = hashId.slice(0, len);
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chunkGraph.setModuleId(module, moduleId);
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usedIds.add(moduleId);
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}
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});
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});
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}
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}
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module.exports = HashedModuleIdsPlugin;
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