wget.py 文件源码

def _check_latest_version(self, url, package, package_regex, current_version, ud, d):
        """
        Return the latest version of a package inside a given directory path
        If error or no version, return ""
        """
        valid = 0
        version = ['', '', '']

        bb.debug(3, "VersionURL: %s" % (url))
        soup = BeautifulSoup(self._fetch_index(url, ud, d), "html.parser", parse_only=SoupStrainer("a"))
        if not soup:
            bb.debug(3, "*** %s NO SOUP" % (url))
            return ""

        for line in soup.find_all('a', href=True):
            bb.debug(3, "line['href'] = '%s'" % (line['href']))
            bb.debug(3, "line = '%s'" % (str(line)))

            newver = self._parse_path(package_regex, line['href'])
            if not newver:
                newver = self._parse_path(package_regex, str(line))

            if newver:
                bb.debug(3, "Upstream version found: %s" % newver[1])
                if valid == 0:
                    version = newver
                    valid = 1
                elif self._vercmp(version, newver) < 0:
                    version = newver

        pupver = re.sub('_', '.', version[1])

        bb.debug(3, "*** %s -> UpstreamVersion = %s (CurrentVersion = %s)" %
                (package, pupver or "N/A", current_version[1]))

        if valid:
            return pupver

        return ""