Re: Trying to sync two svn repositories with git-svn (repost)

On Mon, May 04, 2009 at 11:14:23PM +0200, Josef Wolf wrote:

I am still trying to understand what is going on here, so I tried to
draw the history-graph.  It turns out that after the "getting-started"
commands is not what I would have expected:

 git tag svn-1-orig svn-1
 git tag svn-2-orig svn-2

 # move cherries to svn-2
 #
 git svn fetch svn-1
 git checkout svn-2
 git cherry-pick c9da
 [ ... ]
 git merge --no-ff -s ours svn-1
 git checkout svn-2/trunk
 git merge --no-ff svn-2
 git svn dcommit

 # move cherries to svn-1
 #
 git svn fetch svn-2
 git checkout svn-1
 git cherry-pick 05b9
 [ ... ]
 git merge --no-ff -s ours svn-2
 git checkout svn-1/trunk
 git merge --no-ff svn-1
 git svn dcommit

Here's what I have at this point:

             ------------------S1TRUNK
            /                 /
   --hs1--O1--c2...c2-------S1
            \              /
             `+++++++.    /
                      \  /
   --hs2--O2--c1...c1--S2
            \            \
             -------------S2TRUNK

   hs1, hs2:         history imported from svn-1 and svn2, respectively
   O1, O2:           the svn-1-orig and svn-2-orig tags
   c1, c2:           cherries picked from hs1 and hs2, respectively
   S1, S2:           svn-1 and svn-2, the local tracking branches
   S1TRUNK, S2TRUNK: the remotes/svn-X/trunk branches

I would have expected a symmetrical diagram.  But it turns out that the
connection marked with plusses is still at O1 instead of S1.  So it takes
no wonder that the c2 cherries get re-applied to the s2 branch on the
next merge.

Is this understanding somewhat plausible?  Any ideas how to get this
this fixed?