First of all, install Homebrew
Install libgit2, using Homebrew:
brew install libgit2
Now, download the last binary from fholiveira's smartprompt or simple get it from my dotfiles.
Paste smartprompt binary under a path mapped in your $PATH, in my case, I have created a dir at: ~/.bin, and add that dir in /etc/paths
Ok, it's simple, now you should do: make setup, it'll copy .vimrc, .gitconfig and .bashrc to your home.
Open your terminal, go to preferences > profiles > import, and select Programmer.terminal. Select your favorite font size. Go to profile > shell and put it in your startup run command:
source .bashrc
And be happy with your beatifull terminal :)
Do not forget to put your credentials in .gitconfig!