run.py 文件源码

def CheckForUpdates(fileServerPort, debug):
    """
    Check for updates.

    Channel options are stable, beta & alpha
    Patches are only created & applied on the stable channel
    """
    assert CLIENT_CONFIG.PUBLIC_KEY is not None
    client = Client(CLIENT_CONFIG, refresh=True)
    appUpdate = client.update_check(CLIENT_CONFIG.APP_NAME,
                                    wxupdatedemo.__version__,
                                    channel='stable')
    if appUpdate:
        if hasattr(sys, "frozen"):
            downloaded = appUpdate.download()
            if downloaded:
                status = UpdateStatus.EXTRACTING_UPDATE_AND_RESTARTING
                if 'WXUPDATEDEMO_TESTING_FROZEN' in os.environ:
                    sys.stderr.write("Exiting with status: %s\n"
                                     % UPDATE_STATUS_STR[status])
                    ShutDownFileServer(fileServerPort)
                    sys.exit(0)
                ShutDownFileServer(fileServerPort)
                if debug:
                    logger.debug('Extracting update and restarting...')
                    time.sleep(10)
                appUpdate.extract_restart()
            else:
                status = UpdateStatus.UPDATE_DOWNLOAD_FAILED
        else:
            status = UpdateStatus.UPDATE_AVAILABLE_BUT_APP_NOT_FROZEN
    else:
        status = UpdateStatus.NO_AVAILABLE_UPDATES
    return status