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Commit864cf1a

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Merge pull request#62 from P2000/p2000
detect renames in "git diff --raw" output
2 parentscd72d78 +3da67f3 commit864cf1a

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3 files changed

+34
-6
lines changed

3 files changed

+34
-6
lines changed

‎git/diff.py‎

Lines changed: 9 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -310,21 +310,24 @@ def _index_from_patch_format(cls, repo, stream):
310310
@classmethod
311311
def_index_from_raw_format(cls,repo,stream):
312312
"""Create a new DiffIndex from the given stream which must be in raw format.
313-
:note:
314-
This format is inherently incapable of detecting renames, hence we only
315-
modify, delete and add files
316313
:return: git.DiffIndex"""
317314
# handles
318315
# :100644 100644 6870991011cc8d9853a7a8a6f02061512c6a8190 37c5e30c879213e9ae83b21e9d11e55fc20c54b7 M.gitignore
316+
# or
317+
# :100644 100644 4aab7ea753e2867dd464f2a50dd266d426ddc8c8 4aab7ea753e2867dd464f2a50dd266d426ddc8c8 R100 src/bootstrap/package.jsonpackage.json
319318
index=DiffIndex()
320319
forlineinstream:
321320
ifnotline.startswith(":"):
322321
continue
323322
# END its not a valid diff line
324323
old_mode,new_mode,a_blob_id,b_blob_id,change_type,path=line[1:].split(None,5)
325324
path=path.strip()
326-
a_path=path
327-
b_path=path
325+
ifchange_type[0]!='R':
326+
a_path=b_path=path
327+
rename_from=rename_to=None
328+
else:
329+
a_path,b_path=path.split('\t')
330+
rename_from,rename_to=a_path,b_path
328331
deleted_file=False
329332
new_file=False
330333

@@ -339,7 +342,7 @@ def _index_from_raw_format(cls, repo, stream):
339342
# END add/remove handling
340343

341344
diff=Diff(repo,a_path,b_path,a_blob_id,b_blob_id,old_mode,new_mode,
342-
new_file,deleted_file,None,None,'')
345+
new_file,deleted_file,rename_from,rename_to,'')
343346
index.append(diff)
344347
# END for each line
345348

‎git/test/fixtures/diff_rename_raw‎

Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,4 @@
1+
:000000 100644 0000000000000000000000000000000000000000 8b137891791fe96927ad78e64b0aad7bded08bdc Agit/test/refs/__init__.py
2+
:100644 100644 271924aa5bf43ef58a0b0dae5a356e502c48dcf8 271924aa5bf43ef58a0b0dae5a356e502c48dcf8 R100git/test/test_reflog.pygit/test/refs/test_reflog.py
3+
:100644 100644 e49b23abc5c47f26e8cf64d46aa6851593ce1404 e49b23abc5c47f26e8cf64d46aa6851593ce1404 R100git/test/test_refs.pygit/test/refs/test_refs.py
4+
:100644 100644 b9a0b617b66962d2c2ba211641675d06f591461f b9a0b617b66962d2c2ba211641675d06f591461f R100git/test/test_git.pygit/test/test_cmd.py

‎git/test/test_diff.py‎

Lines changed: 21 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -51,6 +51,19 @@ def test_diff_with_rename(self):
5151
assert_equal(diff.rename_from,'AUTHORS')
5252
assert_equal(diff.rename_to,'CONTRIBUTORS')
5353

54+
deftest_diff_with_rename_raw(self):
55+
output=StringProcessAdapter(fixture('diff_rename_raw'))
56+
diffs=Diff._index_from_raw_format(self.rorepo,output.stdout)
57+
self._assert_diff_format(diffs)
58+
59+
diffs=filter(lambdad:d.renamed,diffs)
60+
assert_equal(3,len(diffs))
61+
62+
diff=diffs[0]
63+
assert_true(diff.renamed)
64+
assert_equal(diff.rename_from,'git/test/test_reflog.py')
65+
assert_equal(diff.rename_to,'git/test/refs/test_reflog.py')
66+
5467
deftest_diff_patch_format(self):
5568
# test all of the 'old' format diffs for completness - it should at least
5669
# be able to deal with it
@@ -98,6 +111,14 @@ def test_diff_interface(self):
98111
# END for each path option
99112
# END for each other side
100113
# END for each commit
114+
115+
# test rename detection
116+
rename_commit=self.rorepo.rev_parse('4772fe0')
117+
rename_diffs=rename_commit.parents[0].diff(rename_commit,M=True)
118+
rename_diffs=filter(lambdad:d.renamed,rename_diffs)
119+
assertlen(rename_diffs)==3
120+
assertrename_diffs[0].rename_from==rename_diffs[0].a_blob.path
121+
assertrename_diffs[0].rename_to==rename_diffs[0].b_blob.path
101122

102123
# assert we could always find at least one instance of the members we
103124
# can iterate in the diff index - if not this indicates its not working correctly

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