source: trip-planner-front/node_modules/webpack/lib/ids/HashedModuleIdsPlugin.js

Last change on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 2.4 KB
Line 
1/*
2 MIT License http://www.opensource.org/licenses/mit-license.php
3 Author Tobias Koppers @sokra
4*/
5
6"use strict";
7
8const {
9 compareModulesByPreOrderIndexOrIdentifier
10} = require("../util/comparators");
11const createSchemaValidation = require("../util/create-schema-validation");
12const createHash = require("../util/createHash");
13const { getUsedModuleIds, getFullModuleName } = require("./IdHelpers");
14
15/** @typedef {import("../../declarations/plugins/HashedModuleIdsPlugin").HashedModuleIdsPluginOptions} HashedModuleIdsPluginOptions */
16
17const validate = createSchemaValidation(
18 require("../../schemas/plugins/HashedModuleIdsPlugin.check.js"),
19 () => require("../../schemas/plugins/HashedModuleIdsPlugin.json"),
20 {
21 name: "Hashed Module Ids Plugin",
22 baseDataPath: "options"
23 }
24);
25
26class HashedModuleIdsPlugin {
27 /**
28 * @param {HashedModuleIdsPluginOptions=} options options object
29 */
30 constructor(options = {}) {
31 validate(options);
32
33 /** @type {HashedModuleIdsPluginOptions} */
34 this.options = {
35 context: null,
36 hashFunction: "md4",
37 hashDigest: "base64",
38 hashDigestLength: 4,
39 ...options
40 };
41 }
42
43 apply(compiler) {
44 const options = this.options;
45 compiler.hooks.compilation.tap("HashedModuleIdsPlugin", compilation => {
46 compilation.hooks.moduleIds.tap("HashedModuleIdsPlugin", modules => {
47 const chunkGraph = compilation.chunkGraph;
48 const context = this.options.context
49 ? this.options.context
50 : compiler.context;
51
52 const usedIds = getUsedModuleIds(compilation);
53 const modulesInNaturalOrder = Array.from(modules)
54 .filter(m => {
55 if (!m.needId) return false;
56 if (chunkGraph.getNumberOfModuleChunks(m) === 0) return false;
57 return chunkGraph.getModuleId(module) === null;
58 })
59 .sort(
60 compareModulesByPreOrderIndexOrIdentifier(compilation.moduleGraph)
61 );
62 for (const module of modulesInNaturalOrder) {
63 const ident = getFullModuleName(module, context, compiler.root);
64 const hash = createHash(options.hashFunction);
65 hash.update(ident || "");
66 const hashId = /** @type {string} */ (
67 hash.digest(options.hashDigest)
68 );
69 let len = options.hashDigestLength;
70 while (usedIds.has(hashId.substr(0, len))) len++;
71 const moduleId = hashId.substr(0, len);
72 chunkGraph.setModuleId(module, moduleId);
73 usedIds.add(moduleId);
74 }
75 });
76 });
77 }
78}
79
80module.exports = HashedModuleIdsPlugin;
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