code: function validateCache(path, cache) {
  	const
  		{mtime} = fs.statSync(path);
  
  	return {
  		mtime,
  		fromCache: Boolean(cache[path] && Sugar.Date.is(mtime, cache[path].mtime))
  	};
  }
docs: Validates a file by the specified path and return meta information
  
  @param {string} path
  @param {!Object} cache - cache object
  @returns {{mtime: !Object, fromCache: boolean}}