Put working git branch in shell prompt for bash and zsh?

[Craig Rodrigues]

Bartek,

Here are some further cool things I found from the minimal prompt
in zprezto:

GIT
===
(1)  If  a workspace has a modified file, which hasn't been checked in,
that
       an orange circle appears in the prompt.

(2)  If a workspace has file that hasn't been added with 'git add',
       a red circle appears in the prompt.

(3)  If a workspace is in the middle of a 'git rebase', then 'rebase'
appears in the prompt.

(4)  If a workspace is in the middle of a 'git cherry-pick', then 'cherry'
appears in the prompt.

SVN
====
(1)  If you cd into a Subversion workspace, the branch and revision number
are reflected
       in the prompt:

============================
~ >> cd /usr/bin
/usr/bin >> pwd
/usr/bin
/usr/bin >> cd /usr/src
/usr/src - [10|291085] >> pwd
/usr/src
============================

I am sure I can cutomize things more to get the prompt exactly as
I like it, but that is amazing functionality out of the box.
I love it!

--
Craig