1 |
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2 |
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3 |
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4 |
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5 | "use strict"
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6 | exports.__esModule = true
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7 |
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8 | const createHash = require('crypto').createHash
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9 |
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10 | const stringify = JSON.stringify
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11 |
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12 | function hashify(value, hash) {
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13 | if (!hash) hash = createHash('sha256')
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14 |
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15 | if (value instanceof Array) {
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16 | hashArray(value, hash)
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17 | } else if (value instanceof Object) {
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18 | hashObject(value, hash)
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19 | } else {
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20 | hash.update(stringify(value) || 'undefined')
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21 | }
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22 |
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23 | return hash
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24 | }
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25 | exports.default = hashify
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26 |
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27 | function hashArray(array, hash) {
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28 | if (!hash) hash = createHash('sha256')
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29 |
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30 | hash.update('[')
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31 | for (let i = 0; i < array.length; i++) {
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32 | hashify(array[i], hash)
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33 | hash.update(',')
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34 | }
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35 | hash.update(']')
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36 |
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37 | return hash
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38 | }
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39 | hashify.array = hashArray
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40 | exports.hashArray = hashArray
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41 |
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42 | function hashObject(object, hash) {
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43 | if (!hash) hash = createHash('sha256')
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44 |
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45 | hash.update("{")
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46 | Object.keys(object).sort().forEach(key => {
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47 | hash.update(stringify(key))
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48 | hash.update(':')
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49 | hashify(object[key], hash)
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50 | hash.update(",")
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51 | })
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52 | hash.update('}')
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53 |
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54 | return hash
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55 | }
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56 | hashify.object = hashObject
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57 | exports.hashObject = hashObject
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58 |
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59 |
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