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68 lines
1.8 KiB
68 lines
1.8 KiB
/*
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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 concord = require("./concord");
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const DescriptionFileUtils = require("./DescriptionFileUtils");
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const getInnerRequest = require("./getInnerRequest");
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module.exports = class ConcordModulesPlugin {
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constructor(source, options, target) {
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this.source = source;
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this.options = options;
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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("ConcordModulesPlugin", (request, resolveContext, callback) => {
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const innerRequest = getInnerRequest(resolver, request);
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if (!innerRequest) return callback();
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const concordField = DescriptionFileUtils.getField(
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request.descriptionFileData,
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"concord"
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);
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if (!concordField) return callback();
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const data = concord.matchModule(
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request.context,
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concordField,
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innerRequest
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);
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if (data === innerRequest) return callback();
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if (data === undefined) return callback();
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if (data === false) {
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const ignoreObj = Object.assign({}, request, {
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path: false
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});
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return callback(null, ignoreObj);
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}
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const obj = Object.assign({}, request, {
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path: request.descriptionFileRoot,
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request: data
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});
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resolver.doResolve(
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target,
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obj,
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"aliased from description file " +
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request.descriptionFilePath +
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" with mapping '" +
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innerRequest +
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"' to '" +
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data +
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"'",
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resolveContext,
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(err, result) => {
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if (err) return callback(err);
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// Don't allow other aliasing or raw request
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if (result === undefined) return callback(null, null);
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callback(null, result);
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}
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);
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});
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}
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};
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