vim mode for git commits

That's threefold:

• a syntax file ~/.vim/syntax/git.vim
• a ftplugin file ~/.vim/ftplugin/git.vim
• and add a line in your ~/.vim/filetype.vim that says au BufRead,BufNewFile COMMIT_EDITMSG setf git

Now you will have a quite simple syntax colorization for the commit log, and the killer feature is that when you git commit, a vertical split shows the diff while you are commenting it :)

I suppose those modes will evolve, please enjoy.

Edit: the script was a bit modified to work even when you're not in autochdir mode, thanks to SungHyun Nam from the git-list.