/*
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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 forEachBail = require("./forEachBail");
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const getPaths = require("./getPaths");
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module.exports = class ModulesInHierachicDirectoriesPlugin {
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constructor(source, directories, target) {
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this.source = source;
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this.directories = [].concat(directories);
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this.target = target;
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}
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apply(resolver) {
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const target = resolver.ensureHook(this.target);
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resolver
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.getHook(this.source)
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.tapAsync(
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"ModulesInHierachicDirectoriesPlugin",
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(request, resolveContext, callback) => {
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const fs = resolver.fileSystem;
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const addrs = getPaths(request.path)
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.paths.map(p => {
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return this.directories.map(d => resolver.join(p, d));
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})
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.reduce((array, p) => {
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array.push.apply(array, p);
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return array;
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}, []);
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forEachBail(
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addrs,
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(addr, callback) => {
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fs.stat(addr, (err, stat) => {
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if (!err && stat && stat.isDirectory()) {
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const obj = Object.assign({}, request, {
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path: addr,
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request: "./" + request.request
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});
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const message = "looking for modules in " + addr;
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return resolver.doResolve(
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target,
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obj,
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message,
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resolveContext,
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callback
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);
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}
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if (resolveContext.log)
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resolveContext.log(
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addr + " doesn't exist or is not a directory"
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);
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if (resolveContext.missing) resolveContext.missing.add(addr);
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return callback();
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});
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},
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callback
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);
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}
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);
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}
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};
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