homebrew.py 文件源码

def outdated(self):
        """ Fetch outdated packages from ``brew outdated`` output.

        Raw CLI output samples:

        .. code-block:: shell-session

            $ brew outdated --json=v1
            [
              {
                "name": "cassandra",
                "installed_versions": [
                  "3.5"
                ],
                "current_version": "3.7"
              },
              {
                "name": "vim",
                "installed_versions": [
                  "7.4.1967"
                ],
                "current_version": "7.4.1993"
              },
              {
                "name": "youtube-dl",
                "installed_versions": [
                  "2016.07.06"
                ],
                "current_version": "2016.07.09.1"
              }
            ]
        """
        outdated = {}

        # List available updates.
        output = self.run(
            [self.cli_path] + self.cli_args + ['outdated', '--json=v1'])

        if output:
            for pkg_info in json.loads(output):

                # Parse versions to avoid lexicographic sorting gotchas.
                version = None
                versions = set(pkg_info['installed_versions'])
                if versions:
                    _, version = max([(parse_version(v), v) for v in versions])

                package_id = pkg_info['name']
                outdated[package_id] = {
                    'id': package_id,
                    'name': package_id,
                    'installed_version': version,
                    'latest_version': pkg_info['current_version']}

        return outdated