| 1 | /*
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| 2 | Copyright 2018 Google LLC
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| 3 |
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| 4 | Use of this source code is governed by an MIT-style
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| 5 | license that can be found in the LICENSE file or at
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| 6 | https://opensource.org/licenses/MIT.
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| 7 | */
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| 8 |
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| 9 | const crypto = require('crypto');
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| 10 |
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| 11 | module.exports = (compositeURL, dependencyDetails) => {
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| 12 | let totalSize = 0;
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| 13 | let compositeHash = '';
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| 14 |
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| 15 | for (let fileDetails of dependencyDetails) {
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| 16 | totalSize += fileDetails.size;
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| 17 | compositeHash += fileDetails.hash;
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| 18 | }
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| 19 |
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| 20 | const md5 = crypto.createHash('md5');
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| 21 | md5.update(compositeHash);
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| 22 | const hashOfHashes = md5.digest('hex');
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| 23 |
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| 24 | return {
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| 25 | file: compositeURL,
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| 26 | hash: hashOfHashes,
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| 27 | size: totalSize,
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| 28 | };
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| 29 | };
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