listing directory

walk.js

/*
 * This is a synchronized vesion. Please rewrite in async version using Promise.
 * Note: You may directly use https://github.com/normalize/mz
 *
 */
var walkSync = function(dir, filelist) {
  var fs = fs || require('fs'),
      files = fs.readdirSync(dir);
  filelist = filelist || [];
  files.forEach(function(file) {
    if (fs.statSync(dir + file).isDirectory()) {
      filelist = walkSync(dir + file + '/', filelist);
    }
    else {
      filelist.push(file);
    }
  });
  return filelist;
};