From de5abb5f7a22fbb595fbc6ccb4a75bfad14396d3 Mon Sep 17 00:00:00 2001 From: "Philip.McGraw" Date: Tue, 27 Aug 2019 06:43:58 +0300 Subject: git-p4: auto-delete named temporary file Avoid double-open exceptions on Windows platform when calculating for lfs compressed size threshold (git-p4.largeFileCompressedThreshold) comparisons. Take new approach using the NamedTemporaryFile() file-like object as input to the ZipFile() which auto-deletes after implicit close leaving with scope. Original code had double-open exception on Windows platform because file still open from NamedTemporaryFile() using generated filename instead of object. Thanks to Andrey for patiently suggesting several iterations on this change for avoiding exceptions! Also print error details after resulting IOError to make debugging cause of exception less mysterious when it has nothing to do with "git version recent enough." Signed-off-by: Philip.McGraw Reviewed-by: Andrey Mazo Acked-by: Luke Diamand Signed-off-by: Junio C Hamano --- git-p4.py | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/git-p4.py b/git-p4.py index 3991e7d1a7..60c73b6a37 100755 --- a/git-p4.py +++ b/git-p4.py @@ -1160,13 +1160,11 @@ class LargeFileSystem(object): if contentsSize <= gitConfigInt('git-p4.largeFileCompressedThreshold'): return False contentTempFile = self.generateTempFile(contents) - compressedContentFile = tempfile.NamedTemporaryFile(prefix='git-p4-large-file', delete=False) - zf = zipfile.ZipFile(compressedContentFile.name, mode='w') - zf.write(contentTempFile, compress_type=zipfile.ZIP_DEFLATED) - zf.close() - compressedContentsSize = zf.infolist()[0].compress_size + compressedContentFile = tempfile.NamedTemporaryFile(prefix='git-p4-large-file', delete=True) + with zipfile.ZipFile(compressedContentFile, mode='w') as zf: + zf.write(contentTempFile, compress_type=zipfile.ZIP_DEFLATED) + compressedContentsSize = zf.infolist()[0].compress_size os.remove(contentTempFile) - os.remove(compressedContentFile.name) if compressedContentsSize > gitConfigInt('git-p4.largeFileCompressedThreshold'): return True return False @@ -3525,8 +3523,9 @@ class P4Sync(Command, P4UserMap): self.updateOptionDict(details) try: self.commit(details, self.extractFilesFromCommit(details), self.branch) - except IOError: + except IOError as err: print("IO error with git fast-import. Is your git version recent enough?") + print("IO error details: {}".format(err)) print(self.gitError.read()) def openStreams(self): -- cgit v1.2.3