Colored BASH prompt, tells you how long it's been since your last commit and the current branch

.bash_profile

function minutes_since_last_commit {
    Color_Off="\033[0m"
    Red="\033[0;31m"
    Green="\033[0;32m"
    Yellow="\033[0;33m"

    git branch &>/dev/null
    if [ $? -eq 0 ]; then
      now=`date +%s`
      last_commit=`git log --pretty=format:'%at' -1`
      seconds_since_last_commit=$((now-last_commit))
      minutes_since_last_commit=$((seconds_since_last_commit/60))

      if [ $minutes_since_last_commit -gt 30 ]; then
          echo "$Red${minutes_since_last_commit}m$Color_Off"
      elif [ $minutes_since_last_commit -gt 10 ]; then
          echo "$Yellow${minutes_since_last_commit}m$Color_Off"
      else
          echo "$Green${minutes_since_last_commit}m$Color_Off"
      fi
    fi
}

source ~/.git-completion.bash
source ~/.git-prompt.sh
export GIT_PS1_SHOWDIRTYSTATE=true
export GIT_PS1_SHOWUNTRACKEDFILES=true
export GIT_PS1_SHOWCOLORHINTS=true
export PS1='\u@\h:\W$(__git_ps1 "(%s|`minutes_since_last_commit`)") → '