Re: git-svn clone problem

From: Deskin Miller <deskinm@umich.edu>
Date: May 28, 2009, 02:11 UTC
Message-ID: <86d4c5e00905271911g58cccc1bwd4b881541db6f7a5@mail.gmail.com>
In-Reply-To: <20090527221601.GA12914@mail.oracle.com>

On Wed, May 27, 2009 at 15:16, Joel Becker <Joel.Becker@oracle.com> wrote:

Show 41 quoted lines

> Hello everyone,
>        I've got a fun git-svn bug I can't seem to track down.  The
> google is no help.  I'm just trying to clone a full repo.  I'm not
> looking to push changes back, and I've done this before, yet now (1.6.3
> and 1.6.3.1) it's not working.
>        The clone command and error is:
>
> $ git svn clone --stdlayout --no-metadata -Aauthors  http://oss.oracle.com/projects/oracleasm/src/ driver-git
> Initialized empty Git repository in
> /build/jlbec/oracleasm/driver-git/.git/
>        A       kernel/osm.c
>        A       Configure
>        A       include/osmprivate.h
>        A       include/arch-i386/osmstructures.h
>        A       include/osmlib.h
>        A       include/osmerror.h
>        A       libosm/osmlib.c
>        A       Makefile
> r1 = d855bc271ef7dcf70a58ae35fde5dc49f28d3e8e (trunk)
> missing UUID at the end of .git/svn/trunk/.rev_db.????????-????-????-????-???????????? at /usr/lib/git-core/git-svn line 4488
>
> You can drop the --no-metadata if you like - it doesn't help.  Clearly
> it's tripping on the first revision.  I'm not sure what UUID it's
> looking for.  The manpage speaks of UUIDs in regards to svk/svnsync, and
> I'm not using those.
>        I suspect the last time I did this was in the 1.5 range (my
> distribution has obviously moved on).  But I would think this was tested
> :-)
>
> Joel
>
> --
>
> "Behind every successful man there's a lot of unsuccessful years."
>        - Bob Brown
>
> Joel Becker
> Principal Software Developer
> Oracle
> E-mail: joel.becker@oracle.com
> Phone: (650) 506-8127

The problem here isn't with git-svn; rather, it is with the svn repository at oss.oracle.com claiming a nonsensical UUID. svn uses UUIDs behind the scenes to identify each repository, and git-svn does the same thing. When doing git svn init (or clone, which is just init && fetch) the svn server sends back a UUID which identifies it. When I use wireshark and expand the first HTTP packet back from a good svn server, I see something like the following embedded in the xml tree:

<lp3:repository-uuid> 612f8ebc-c883-4be0-9ee0-a4e9ef946e3a </lp3:repository-uuid>

However when I do the same with oss.oracle.com I see

<lp2:repository-uuid> ????????-????-????-????-???????????? </lp2:repository-uuid>

git-svn tries to play along for a while, but the bottom line is that a string of question marks isn't a UUID.

There's more about svn's use of UUIDs in the svn book. Perhaps the admin of oss.oracle.com can correct this UUID problem so one can use git-svn with this repository.

Deskin Miller