From: Knut Eldhuset <knut@3d-radar.com>
Date: Wed, 08 Oct 2008 09:20:18 GMT
Subject: Re: Different svn-id URLs in history
Message-ID: <48EC7B52.4000100@3d-radar.com>
In-Reply-To: <48EC7022.7030707@drmicha.warpmail.net>

Michael J Gruber wrote:
> Knut Eldhuset venit, vidit, dixit 08.10.2008 08:34:
>> Michael J Gruber wrote:
>>> Knut Eldhuset venit, vidit, dixit 07.10.2008 12:58:
>>>> Hi,
>>>>
>>>> After cloning my svn repository, I notice that the svn-id URL is 
>>>> different when going back in history:
>>>>
>>>> git-svn-id: https://server/trunk@300
>>>>
>>>> vs
>>>>
>>>> git-svn-id: https://server/trunk/some_folder/project/src@250
>>>>
>>> I take this is as an invitation for guesswork (given the amount of
>>> details)...
>> Sorry about that... I'm confused.
>>> You probably have commits which don't follow your usual svn repo layout
>>> (trunk/some_folder/project/src) but commit to trunk/ directly. The output of
>>>
>>> svn log -v -r300 https://server/trunk@300
>>> svn log -v -r250 https://server/trunk/some_folder/project/src@250
>>>
>>> should give some clues.
>>>
>> Svn log shows that the same path has been modified in both cases. I see 
> 
> Does "same path" mean:
> - same relative to the above paths or
> - same absolute path?

Both say "/trunk/some_folder/project/src/some_file".

> 
>> something strange in git, though. Our svn repository has about 6500 
>> commits, but git shows over 10.000. Further investigation shows that a 
>> lot of svn commits have two entries in git. Some branches off of trunk 
>> do not start at r1, but off of a duplicate rNNNN. Could this be due to 
>> our unhealthy practice of creating branches off of subtrees in svn? By 
>> this I mean create a branch off of 
>> https://server/trunk/some_folder/project/src instead of 
>> https://server/trunk. If so, what can be done to fix this?
>>
>> As a sidenote, during git svn clone, I noticed that each time a new 
>> branch or tag was discovered, the "scanning" started back at r1. Is this 
>> normal? I would think the history before the branch was already 
>> imported. Of course, this could maybe be due to the bad branching 
>> practice described above.
> 
> svn is typically "abused" in the sense that one svn repo is used for
> separate projects (your subtrees). git-svn can deal with non-standard
> repo layouts.
> 
> I assume you can't share the svn repo publically, can you?

Sorry, no.

> So, in order to help you, we would need to know
> 
> - the layout of your svn repo: where are trunk, branches and tags, how
> did you create branches and tags in svn, are "projects" entirely separate

https://server/trunk
https://server/branches
https://server/tags

We really only have one "project" source tree at 
https://server/trunk/some_folder/project/src

However, once the sources were at
https://server/trunk/some_folder/project/old_source

Therefore we have the following:

$ svn log -v -r4871 https://server/
------------------------------------------------------------------------
r4871 | nn | 2007-09-25 13:36:25 +0200 (Tue, 25 Sep 2007) | 3 lines
Changed paths:
    M /trunk/project
    D /trunk/project/old_source/some_file
    A /trunk/project/src/client/some_file (from 
/trunk/project/old_source/some_file:4795)

  commit-message
------------------------------------------------------------------------

$ svn log -v -r4869 https://server/
------------------------------------------------------------------------
r4869 | nn | 2007-09-25 13:14:34 +0200 (Tue, 25 Sep 2007) | 3 lines
Changed paths:
    M /trunk/project
    A /trunk/project/src
    A /trunk/project/src/client

  commit-message

------------------------------------------------------------------------

$ svn log -v -r4868 https://server/
------------------------------------------------------------------------
r4868 | nn | 2007-09-25 13:14:28 +0200 (Tue, 25 Sep 2007) | 3 lines
Changed paths:
    M /trunk/project

  commit-message

------------------------------------------------------------------------

$ svn log -v -r4867 https://server/
------------------------------------------------------------------------
r4867 | nn | 2007-09-25 12:04:58 +0200 (Tue, 25 Sep 2007) | 3 lines
Changed paths:
    M /trunk/project
    A /trunk/project/some_file

  commit-message
------------------------------------------------------------------------

r4868 appears twice in git. One commit is on master/trunk and has parent 
and child, while the other is on a branch and has no parent.

> - your incarnation of git-svn
> 

# git --version
git version 1.6.0.2


Regards,
Knut