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Re: Renaming files on win32

From: Gili <junk_at_bbs.darktech.org>
Date: 2004-12-23 01:32:02 CET

On Wed, 22 Dec 2004 19:28:59 -0500, John Szakmeister wrote:

>On Wednesday 22 December 2004 16:20, Scott Palmer wrote:
>[snip]
>> On windows if you have a file "Abc" and you rename it to "abc" in the
>> local filesystem it just works. There is no reason to not allow this
>> as long as something named "file" does not already exist in the working
>> copy which is impossible on Windows anyway. It seems there is a bug in
>> Subversion in that it tries to access "abc" -- which on windows
>> successfully accesses "Abc", and then Subversion gets confused about
>> the existence of the target name, when it fact it is detecting a bogus
>> conflict with the source name.
>>
>> Surely THAT can be easily fixed?
>
>I think this problem partly stems from the fact that mv/ren is implemented
>as a delete with copy+history. What ends up happening is that both are
>still in the text-base, and we collide. For example:
>
> $touch a
> $svn ci -m '' a
> $svn mv a A
> $ls
> A
> $ls .svn/text-base
> a.svn-base A.svn-base
>
>When working on a case-insensitive file system, we'd collide on the 'svn
>mv' command because a.svn-base already exists. Fixing this involves
>changes to the WC library, which is probably one of the most difficult
>components of Subversion to understand. It also probably means we need
>to bump the WC format, which the poses some problems related to version
>compatibility. This problem is by no means simple, which is probably why
>it's been in the issue tracker for as long as it has. However, I too
>would like to see this fixed. So, if we can get some clear direction as
>to where to go with it, I'll volunteer some of my time to help do the
>task.

        Step #1: note what is going wrong and why it might be difficult
to fix this in the issue tracker.

Gili

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Received on Thu Dec 23 01:33:19 2004

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