git.squeep.com Git - squeep-mystery-box/blob - lib/common.js

   1 'use strict';
   2
   3 const path = require('path');
   4 const { randomBytes } = require('crypto');
   5 const { promisify } = require('util');
   6 const randomBytesAsync = promisify(randomBytes);
   7
   8
   9 /**
  10  * Return a function which combines a part of the filename with a scope, for use in logging.
  11  * @param {string} filename
  12  */
  13 const fileScope = (filename) => {
  14   let fScope = path.basename(filename, '.js');
  15   if (fScope === 'index') {
  16     fScope = path.basename(path.dirname(filename));
  17   }
  18   return (scope) => `${fScope}:${scope}`;
  19 }
  20
  21
  22 /**
  23  * Return an array containing x if x is something and not an array
  24  * @param {*} x
  25  */
  26 const ensureArray = (x) => {
  27   if (x === undefined) {
  28     return [];
  29   }
  30   if (!Array.isArray(x)) {
  31     return Array(x);
  32   }
  33   return x;
  34 };
  35
  36
  37 module.exports = {
  38   ensureArray,
  39   fileScope,
  40   randomBytesAsync,
  41 };