Git's own bash/zsh completion support comes with utilities for the prompt. For details see: http://git.kernel.org/?p=git/git.git;a=blob;f=contrib/completion/gi

Git's own bash/zsh completion support comes with utilities for the prompt. For details see: http://git.kernel.org/?p=git/git.git;a=blob;f=contrib/completion/git-completion.bash;hb=HEAD http://git.kernel.org/?p=git/git.git;a=blob;f=contrib/comple...