From: Andrey <ahippo@yandex.ru>
To: Philip McGraw <philip.mcgraw@bentley.com>
Cc: "git@vger.kernel.org" <git@vger.kernel.org>,
"luke@diamand.org" <luke@diamand.org>
Subject: Re: [PATCH] git-p4: close temporary file before removing
Date: Wed, 31 Jul 2019 10:09:16 -0400 [thread overview]
Message-ID: <2835251564582156@myt6-4218ece6190d.qloud-c.yandex.net> (raw)
In-Reply-To: <BL0PR1901MB2097EA8851C2743D46210D38FFDF0@BL0PR1901MB2097.namprd19.prod.outlook.com>
31.07.2019, 09:53, "Philip McGraw" <philip.mcgraw@bentley.com>:
>> 30.07.2019, 13:37, "Philip McGraw" <philip.mcgraw@bentley.com>:
>> > python os.remove() throws exceptions on Windows platform when attempting
>> > to remove file while it is still open. Need to grab filename while file open,
>> > close file handle, then remove by name. Apparently other platforms are more
>> > permissive of removing files while busy.
>> > reference: https://docs.python.org/3/library/os.html#os.remove
>> > ---
>> > git-p4.py | 4 +++-
>> > 1 file changed, 3 insertions(+), 1 deletion(-)
>> >
>> > diff --git a/git-p4.py b/git-p4.py
>> > index c71a6832e2..6b9d2a8317 100755
>> > --- a/git-p4.py
>> > +++ b/git-p4.py
>> > @@ -1161,12 +1161,14 @@ def exceedsLargeFileThreshold(self, relPath, contents):
>> > return False
>> > contentTempFile = self.generateTempFile(contents)
>> > compressedContentFile = tempfile.NamedTemporaryFile(prefix='git-p4-large-file', delete=False)
>> > + compressedContentFileName = compressedContentFile.name
>> > zf = zipfile.ZipFile(compressedContentFile.name, mode='w')
>> > zf.write(contentTempFile, compress_type=zipfile.ZIP_DEFLATED)
>> > zf.close()
>> > compressedContentsSize = zf.infolist()[0].compress_size
>> > os.remove(contentTempFile)
>> > - os.remove(compressedContentFile.name)
>> > + compressedContentFile.close()
>> > + os.remove(compressedContentFileName)
>>
>> I'm not sure why NamedTemporaryFile() is called with delete=False above,
>> but it appears to me that it can have delete=True instead,
>> so that there is no need to call os.remove() explicitly
>> and thus worry about remove vs close ordering at all.
>>
>> > if compressedContentsSize > gitConfigInt('git-p4.largeFileCompressedThreshold'):
>> > return True
>> > return False
>> > --
>> > 2.21.0.windows.1
>>
>> Thank you,
>> Andrey.
>
> Thanks Andrey; simpler is certainly better! I will test and re-submit v2 of patch with that approach.
Thank you, that would be great!
--
Andrey.
next prev parent reply other threads:[~2019-07-31 14:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-30 17:37 [PATCH] git-p4: close temporary file before removing Philip McGraw
2019-07-31 1:48 ` Andrey
2019-07-31 13:53 ` Philip McGraw
2019-07-31 14:09 ` Andrey [this message]
2019-07-31 21:51 ` Philip McGraw
2019-08-01 1:34 ` Andrey
2019-08-01 15:30 ` Philip McGraw
2019-08-02 3:50 ` Andrey
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