Show the current git branch in your prompt (based on http://www.jonmaddox.com/2008/03/13/show-your-git-branch-name-in-your-prompt/)

.bashrc

function get_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ \1/'
}

function gitify_prompt {
  local WHITE="\[\033[1;37m\]"
  local LIGHT_GRAY="\[\033[0;37m\]"
  PS1="\h:\W$WHITE\$(get_git_branch)$LIGHT_GRAY\$ "
  PS2='> '
  PS4='+ '
}

gitify_prompt