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4 |
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5 | "use strict";
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6 |
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7 | const concord = require("./concord");
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8 | const DescriptionFileUtils = require("./DescriptionFileUtils");
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9 | const forEachBail = require("./forEachBail");
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10 |
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11 | module.exports = class ConcordExtensionsPlugin {
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12 | constructor(source, options, target) {
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13 | this.source = source;
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14 | this.options = options;
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15 | this.target = target;
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16 | }
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17 |
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18 | apply(resolver) {
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19 | const target = resolver.ensureHook(this.target);
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20 | resolver.getHook(this.source).tapAsync("ConcordExtensionsPlugin", (request, resolveContext, callback) => {
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21 | const concordField = DescriptionFileUtils.getField(request.descriptionFileData, "concord");
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22 | if(!concordField) return callback();
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23 | const extensions = concord.getExtensions(request.context, concordField);
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24 | if(!extensions) return callback();
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25 | forEachBail(extensions, (appending, callback) => {
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26 | const obj = Object.assign({}, request, {
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27 | path: request.path + appending,
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28 | relativePath: request.relativePath && (request.relativePath + appending)
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29 | });
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30 | resolver.doResolve(target, obj, "concord extension: " + appending, resolveContext, callback);
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31 | }, (err, result) => {
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32 | if(err) return callback(err);
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33 |
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34 |
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35 | if(result === undefined) return callback(null, null);
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36 | callback(null, result);
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37 | });
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38 | });
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39 | }
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40 | };
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