common.py 文件源码

def remove_version_from_href(href):
    """Removes the first api version from the href.

    Given: 'http://www.meteos.com/v1.1/123'
    Returns: 'http://www.meteos.com/123'

    Given: 'http://www.meteos.com/v1.1'
    Returns: 'http://www.meteos.com'

    """
    parsed_url = parse.urlsplit(href)
    url_parts = parsed_url.path.split('/', 2)

    # NOTE: this should match vX.X or vX
    expression = re.compile(r'^v([0-9]+|[0-9]+\.[0-9]+)(/.*|$)')
    if expression.match(url_parts[1]):
        del url_parts[1]

    new_path = '/'.join(url_parts)

    if new_path == parsed_url.path:
        msg = 'href %s does not contain version' % href
        LOG.debug(msg)
        raise ValueError(msg)

    parsed_url = list(parsed_url)
    parsed_url[2] = new_path
    return parse.urlunsplit(parsed_url)