source: trip-planner-front/node_modules/enhanced-resolve/lib/ModulesInHierachicDirectoriesPlugin.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: 2.1 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 forEachBail = require("./forEachBail");
9const getPaths = require("./getPaths");
10
11/** @typedef {import("./Resolver")} Resolver */
12/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
13
14module.exports = class ModulesInHierachicDirectoriesPlugin {
15 /**
16 * @param {string | ResolveStepHook} source source
17 * @param {string | Array<string>} directories directories
18 * @param {string | ResolveStepHook} target target
19 */
20 constructor(source, directories, target) {
21 this.source = source;
22 this.directories = /** @type {Array<string>} */ ([]).concat(directories);
23 this.target = target;
24 }
25
26 /**
27 * @param {Resolver} resolver the resolver
28 * @returns {void}
29 */
30 apply(resolver) {
31 const target = resolver.ensureHook(this.target);
32 resolver
33 .getHook(this.source)
34 .tapAsync(
35 "ModulesInHierachicDirectoriesPlugin",
36 (request, resolveContext, callback) => {
37 const fs = resolver.fileSystem;
38 const addrs = getPaths(request.path)
39 .paths.map(p => {
40 return this.directories.map(d => resolver.join(p, d));
41 })
42 .reduce((array, p) => {
43 array.push.apply(array, p);
44 return array;
45 }, []);
46 forEachBail(
47 addrs,
48 (addr, callback) => {
49 fs.stat(addr, (err, stat) => {
50 if (!err && stat && stat.isDirectory()) {
51 const obj = {
52 ...request,
53 path: addr,
54 request: "./" + request.request,
55 module: false
56 };
57 const message = "looking for modules in " + addr;
58 return resolver.doResolve(
59 target,
60 obj,
61 message,
62 resolveContext,
63 callback
64 );
65 }
66 if (resolveContext.log)
67 resolveContext.log(
68 addr + " doesn't exist or is not a directory"
69 );
70 if (resolveContext.missingDependencies)
71 resolveContext.missingDependencies.add(addr);
72 return callback();
73 });
74 },
75 callback
76 );
77 }
78 );
79 }
80};
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