Re: [PATCH] git filter-branch: Process commits in --date-order

From: Peter Rosin <peda@lysator.liu.se>
Date: Mar 3, 2009, 00:39 UTC
Message-ID: <49AC7C2B.2050505@lysator.liu.se>
In-Reply-To: <alpine.DEB.1.00.0903030126530.10279@pacific.mpi-cbg.de>

Hi Johannes,

Den 2009-03-03 01:28 skrev Johannes Schindelin:

Show 17 quoted lines

> Hi,
> 
> On Tue, 3 Mar 2009, Peter Rosin wrote:
> 
>> When converting an svn repository to git, I am filtering the commits
>> using --msg-filter. During this conversion I want to use the
>> .git-rewrite/map data to fill in references to other commits. In the
>> svn repo, there is a commit message e.g. "Cherry-pick r207", and I
>> want to append "r207 = <commit>" to the git commit message, as r207
>> no longer means very much. This works fine when the git commit
>> corresponding to r207 has been filtered before the current commit, and
>> is present in the map. When filtering in --topo-order, this is not
>> always the case, making it impossible to look up the git commit.
> 
> I'd rather have this as an option.  God knows what breaks with time-skewed 
> repositories if you use date-order instead of topo-order, and I'd rather 
> not break that not quite uncommon case.

Well, from the git rev-list docs:

        --date-order
               This option is similar to --topo-order in the sense that no
               parent comes before all of its children, but otherwise things
               are still ordered in the commit timestamp order.

Sounds pretty safe to me?

Cheers, Peter