def __add_entry(self, hash_):
        '''add an entry to the information file with the current timestamp
        and the hash_ of the file that was saved
        return (stamp, hash)
        '''
        time_info = int(time.time())
        handle = file(self.info_path, 'a')
        handle.write('%s %s\n' % (str(time_info), hash_))
        handle.close()

        return time_info, hash_