bzr to git syncing

[David Reitter <david.reitter@gmail.com>]

Does anyone have experience syncing a Bzr repository to git?
I would ideally want two-way syncing, but even the bzr->git route  
would be a start.

We're starting with a Git repo that was converted from CVS and it  
being kept up to date.  The CVS repo will be converted to Bzr sooner  
or later, and at that point we'd need to sync from that one.  We would  
need to keep the revision IDs coherent, i.e. not re-convert.

I have looked at the git-bzr scripts that go the fast-im/export route;  
this fails unfortunately (bzr side I think).    Also, I'm not sure if  
that would preserve revids.

It strikes me that patches / merge bundles would be cleaner way to do  
this.

(If you care: The background of this is that Emacs is switching to  
Bzr, but my downstream project, Aquamacs, and a bunch of Emacs devs  
want to use git themselves, so I'm trying to find someone who can do  
this.)

Thanks in advance for your suggestions.