update_checker.py 文件源码

def _should_continue():
    min_check_interval = 3600 * 24

    update_timestamp_file = os.path.join(tempfile.gettempdir(), 'uavcan_gui_tool', 'update_check_timestamp')

    try:
        with open(update_timestamp_file, 'r') as f:
            update_check_timestamp = float(f.read().strip())
    except Exception:
        logger.debug('Update timestamp file could not be read', exc_info=True)
        update_check_timestamp = 0

    if (time.time() - update_check_timestamp) < min_check_interval:
        return False

    try:
        os.makedirs(os.path.dirname(update_timestamp_file))
    except Exception:
        pass            # Nobody cares.

    with open(update_timestamp_file, 'w') as f:
        f.write(str(time.time()))

    return True