def get_sha(repo_dir):
try:
output = subprocess.check_output(['git', 'rev-parse', 'HEAD'], cwd=repo_dir).strip()
prefix = 'github:apache/'
local_repo_location = os.environ.get('LOCAL_GIT_REPO')
if local_repo_location is not None:
prefix = 'local:{}:'.format(local_repo_location) # local: slugs take the form 'local:/some/path/to/cassandra/:branch_name_or_sha'
return "{}{}".format(prefix, output)
except CalledProcessError as e:
if re.search('Not a git repository', e.message) is not None:
# we tried to get a sha, but repo_dir isn't a git repo. No big deal, must just be working from a non-git install.
return None
else:
# git call failed for some unknown reason
raise
# There are times when we want to know the C* version we're testing against
# before we call Tester.setUp. In the general case, we can't know that -- the
# test method could use any version it wants for self.cluster. However, we can
# get the version from build.xml in the C* repository specified by
# CASSANDRA_VERSION or CASSANDRA_DIR. This should use the same resolution
# strategy as the actual checkout code in Tester.setUp; if it does not, that is
# a bug.
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