def reachable_tags()

in src/buildstream_plugins/sources/git.py [0:0]

• 32 lines of code
• 3 McCabe index (conditional complexity)

    def reachable_tags(self, rev):
        tags = set()
        for options in [
            [],
            ["--first-parent"],
            ["--tags"],
            ["--tags", "--first-parent"],
        ]:
            exit_code, output = self.source.check_output(
                [
                    self.source.host_git,
                    "describe",
                    "--abbrev=0",
                    rev,
                    *options,
                ],
                cwd=self.mirror,
            )
            if exit_code == 0:
                tag = output.strip()
                _, commit_ref = self.source.check_output(
                    [self.source.host_git, "rev-parse", tag + "^{commit}"],
                    fail="Unable to resolve tag '{}'".format(tag),
                    cwd=self.mirror,
                )
                exit_code = self.source.call(
                    [self.source.host_git, "cat-file", "tag", tag],
                    cwd=self.mirror,
                )
                annotated = exit_code == 0

                tags.add((tag, commit_ref.strip(), annotated))

        return list(tags)