def __remove_cset(repo, sha, ts):
# remove cset
try:
cset = CSet.get(CSet.repo == repo, CSet.hkey == sha, CSet.time == ts)
count = cset.delete_instance()
except CSet.DoesNotExist:
return None
# remove blob
try:
blob = Blob.get(Blob.repo == repo, Blob.hkey == sha, Blob.time == ts)
blob.delete_instance()
except Blob.DoesNotExist:
return None
