Re: [PATCH] git-svnimport: added explicit merge graph option -G

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On Sun, Jun 24, 2007 at 10:44:27AM +0200, Peter Baumann wrote:
> On Sun, Jun 24, 2007 at 12:06:20AM -0700, Junio C Hamano wrote:
> > From: Stas Maximov <smaximov@xxxxxxxxx>
> > Date: Sat, 23 Jun 2007 09:06:30 -0700
> > 
> > Allows explicit merge graph information to be provided. Each line
> > of merge graph file must contain a pair of SVN revision numbers
> > separated by space. The first number is child (merged to) SVN rev
> > number and the second is the parent (merged from) SVN rev number.
> > Comments can be started with '#' and continue to the end of line.
> > Empty and space-only lines are allowed and will be ignored.
> > ---
> > 
> >  * Stas, please give a "Signed-off-by" line, and get in the
> >    habit of always CC the list.
> > 
> >    I received a format-patch output as attachment from Stas.  As
> >    I cannot comment on the patch in that format, I am making a
> >    verbatim forward to the list.
> > 
> >    I'll comment on the patch separately when I am through it,
> >    but would appreciate comments from people who were involved
> >    in git-svnimport in the past, and still use it.
> > 
> >    "You should use git-svn instead" people can repeat that as
> >    usual, but at the same time it might be worth realizing that
> >    there are people who maintain git-svnimport being better for
> >    one-short importing.
> > 
> 
> [exchanging To:/Cc: as Junio just forwarded the message from Stas]
> 
> Not commenting on the patch per se, but wouldn't it make more
> sense to have such functionality in a history rewriting tool like
> e.g. git-branch-filter?
> 
> I had an svn import (git-svn) where I wanted to give correct
> branch/merge points, too, and so I manually created a grafts file
> annotating all the svn merges. Having such a thing as a _generic_ tool
> which operates on grafts would be much more usefull because you get one
> implementation which could be used for each and every importer out
> there. Sure, you have to transform the native revision specifieres into
> the GIT commit id's if you only have e.g. "merged r4711:4720 into trunk",
> but these functionality is much more common to have in importers
> than whats implemented in the above mentioned patch.
> 
> Another bonus point of using the grafts mechanism you'll get for free is
> that you could _look_ at the commit graph in gitk *before* doing the
> often expensive reimport of your project, so could be sure you haven't
> forgotten to mark a merge.
> 

There was a message that git-filter-branch already could to this, which
I didn't know:

http://thread.gmane.org/gmane.comp.version-control.git/50736/focus=50872

-Peter
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