hubble.py 文件源码

def _get_top_data(topfile):
    '''
    Helper method to retrieve and parse the nova topfile
    '''
    topfile = os.path.join(_hubble_dir()[1], topfile)

    try:
        with open(topfile) as handle:
            topdata = yaml.safe_load(handle)
    except Exception as e:
        raise CommandExecutionError('Could not load topfile: {0}'.format(e))

    if not isinstance(topdata, dict) or 'nova' not in topdata or \
            not(isinstance(topdata['nova'], dict)):
        raise CommandExecutionError('Nova topfile not formatted correctly')

    topdata = topdata['nova']

    ret = []

    for match, data in topdata.iteritems():
        if __salt__['match.compound'](match):
            ret.extend(data)

    return ret