| 1 | "use strict";
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| 2 |
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| 3 | const fs = require('fs');
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| 4 | const crypto = require('crypto');
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| 5 |
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| 6 | function hashFile(file_path, hash, cb) {
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| 7 |
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| 8 | if(!Array.isArray(hash))
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| 9 | hash = [hash];
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| 10 |
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| 11 | let hashes = hash.reduce((acc, hash) => ({
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| 12 | ...acc,
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| 13 | [hash] : crypto.createHash(hash)
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| 14 | }), {});
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| 15 |
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| 16 | var input = fs.createReadStream(file_path);
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| 17 | for(let hash in hashes)
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| 18 | input.on('data', hashes[hash].update.bind(hashes[hash]));
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| 19 |
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| 20 | input.on('end', function() {
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| 21 | for(let hash in hashes)
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| 22 | hashes[hash] = hashes[hash].digest('hex');
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| 23 | cb(null, hashes);
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| 24 | });
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| 25 | }
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| 26 |
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| 27 | module.exports = hashFile;
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