synchronizing incremental git changes to cvs

Hello,

Can anyone point me at code to mirror a git repository to cvs? I'd like to develop using git, and have a commit hook mirror the day-to-day changes (tags/commits) made in the git repo to a cvs repository. The idea is that the only way changes get into the cvs repo is via the git commit hook.

I've experimented with git-cvsexportcommit, and found a few bugs (it couldn't handle simple things, like adding a file in a new directory -- fixed that, along with a few other minor problems), adding an empty file in git still gets a patch application error on the cvs side, but I can live with that for now. More seriously, making a change on a git branch mistakenly tries to apply the delta on the cvs trunk. None of this is particularly hard to fix -- or even critical, as long as you don't care about branches. I'm just hoping someone has already produced something more robust. From the looks of darcs/tailor, it doesn't handle the use of git as a source.

Why am I interested? I want to switch the development of GNU coreutils from cvs to git. I would also like to continue making the repository available via cvs, for the sake of continuity. At worst, I can always cut the CVS cord, but that's a last resort.

Jim