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-rw-r--r--objects/submodule/root.py20
1 files changed, 8 insertions, 12 deletions
diff --git a/objects/submodule/root.py b/objects/submodule/root.py
index ca51b34e..753c6df4 100644
--- a/objects/submodule/root.py
+++ b/objects/submodule/root.py
@@ -68,19 +68,15 @@ class RootModule(Submodule):
##################
cur_commit = repo.head.commit
if previous_commit is None:
- symref = repo.head.orig_head()
try:
- previous_commit = symref.commit
- except Exception:
- pcommits = cur_commit.parents
- if pcommits:
- previous_commit = pcommits[0]
- else:
- # in this special case, we just diff against ourselve, which
- # means exactly no change
- previous_commit = cur_commit
- # END handle initial commit
- # END no ORIG_HEAD
+ previous_commit = repo.commit(repo.head.log_entry(-1).oldhexsha)
+ if previous_commit.binsha == previous_commit.NULL_BIN_SHA:
+ raise IndexError
+ #END handle initial commit
+ except IndexError:
+ # in new repositories, there is no previous commit
+ previous_commit = cur_commit
+ #END exception handling
else:
previous_commit = repo.commit(previous_commit) # obtain commit object
# END handle previous commit