Sha256: a22bd59dce9cf363eba6b3a119619d20e122388a980841055dede6204b4e7329
Contents?: true
Size: 1.19 KB
Versions: 27
Compression:
Stored size: 1.19 KB
Contents
/**
* utilities for hashing config objects.
* basically iteratively updates hash with a JSON-like format
*/
'use strict';
exports.__esModule = true;
const createHash = require('crypto').createHash;
const stringify = JSON.stringify;
function hashify(value, hash) {
if (!hash) { hash = createHash('sha256'); }
if (Array.isArray(value)) {
hashArray(value, hash);
} else if (value instanceof Object) {
hashObject(value, hash);
} else {
hash.update(stringify(value) || 'undefined');
}
return hash;
}
exports.default = hashify;
function hashArray(array, hash) {
if (!hash) { hash = createHash('sha256'); }
hash.update('[');
for (let i = 0; i < array.length; i++) {
hashify(array[i], hash);
hash.update(',');
}
hash.update(']');
return hash;
}
hashify.array = hashArray;
exports.hashArray = hashArray;
function hashObject(object, hash) {
if (!hash) { hash = createHash('sha256'); }
hash.update('{');
Object.keys(object).sort().forEach((key) => {
hash.update(stringify(key));
hash.update(':');
hashify(object[key], hash);
hash.update(',');
});
hash.update('}');
return hash;
}
hashify.object = hashObject;
exports.hashObject = hashObject;
Version data entries
27 entries across 27 versions & 2 rubygems