git bash completion.txt

Here's the steps to get git bash completion:

Put the attached file to some where in your home directory. I usually put it in "~/.bash.d/completions".  It can also be downloaded at
http://git.kernel.org/?p=git/git.git;a=blob_plain;f=contrib/completion/git-completion.bash;h=89858c237eaca5a5fb7e89d716577c0ef84dd086 . It's actualy located in git's git repository under contrib/completions.

But anyways, then just add line
source "/Users/luke/.bash.d/completions/git-completion.bash"
to your ~/.bash_login . The file part should be different.

But that's it. It should autocomplete just about everything (options, branches, you name it).