+ If a build tag has already been set (e.g., "egg_info -b", building
+ from source package), leave it alone.
+ """
+ def tags(self):
+ if self.tag_build is None:
+ git_tags = subprocess.check_output(
+ ['git', 'log', '--first-parent', '--max-count=1',
+ '--format=format:%ct %h', SETUP_DIR]).split()
+ assert len(git_tags) == 2
+ git_tags[0] = time.strftime(
+ '%Y%m%d%H%M%S', time.gmtime(int(git_tags[0])))
+ self.tag_build = '.{}.{}'.format(*git_tags)
+ return egg_info.tags(self)