48 lines
1.7 KiB
JavaScript
48 lines
1.7 KiB
JavaScript
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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 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.getHook(this.source).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(request.descriptionFileData, "concord");
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if(!concordField) return callback();
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const data = concord.matchModule(request.context, concordField, innerRequest);
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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(target, obj, "aliased from description file " + request.descriptionFilePath + " with mapping '" + innerRequest + "' to '" + data + "'", resolveContext, (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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