custom.py 文件源码

def dcos_install_cli(install_location=None, client_version='1.8'):
    """
    Downloads the dcos command line from Mesosphere
    """
    system = platform.system()

    if not install_location:
        raise CLIError(
            "No install location specified and it could not be determined from the current platform '{}'".format(
                system))
    base_url = 'https://downloads.dcos.io/binaries/cli/{}/x86-64/dcos-{}/{}'
    if system == 'Windows':
        file_url = base_url.format('windows', client_version, 'dcos.exe')
    elif system == 'Linux':
        # TODO Support ARM CPU here
        file_url = base_url.format('linux', client_version, 'dcos')
    elif system == 'Darwin':
        file_url = base_url.format('darwin', client_version, 'dcos')
    else:
        raise CLIError('Proxy server ({}) does not exist on the cluster.'.format(system))

    logger.warning('Downloading client to %s', install_location)
    try:
        _urlretrieve(file_url, install_location)
        os.chmod(install_location,
                 os.stat(install_location).st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH)
    except IOError as err:
        raise CLIError('Connection error while attempting to download client ({})'.format(err))