layman.py 文件源码

def download_url(module, url, dest):
    '''
    :param url: the URL to download
    :param dest: the absolute path of where to save the downloaded content to;
        it must be writable and not a directory

    :raises ModuleError
    '''

    # Hack to add params in the form that fetch_url expects
    module.params['http_agent'] = USERAGENT
    response, info = fetch_url(module, url)
    if info['status'] != 200:
        raise ModuleError("Failed to get %s: %s" % (url, info['msg']))

    try:
        with open(dest, 'w') as f:
            shutil.copyfileobj(response, f)
    except IOError as e:
        raise ModuleError("Failed to write: %s" % str(e))