This is a small Python script that tries to fix the most common problems with Hg-Git. It's not meant to be awesome, it's just meant to get me out of trouble.
If your .hg/git-mapfile is out of sync (pointing to bad commit hashes):
cd path/to/your/repo
python hggit_sync.py
This will rebuild the map file by looking at the commit history of both the Mercurial and Git repos, and figure out (quite stupidly so far) how the hashes correspond to each other.
If you're in deeper trouble, however, like you get error messages about your local Git mirror having hashes that the server doesn't know about:
cd path/to/your/repo
python hggit_sync.py --rebuild [email protected]/whatever/something.git
This will wipe your local Git mirror, re-fetch it from the given remote URL, and rebuild the map file.
Of course, this script is offered without any guarantees, may format your hard-drive, yada yada. You know the drill when it comes to running random code you found on the web! (I hope)