My .bashrc

.bashrc

# Colors for the prompt
blue="\033[0;34m"
white="\033[0;37m"
green="\033[0;32m"
red="\033[0;31m"
purple="\033[0;35m"

# Brackets needed around non-printable characters in PS1
ps1_blue='\['"$blue"'\]'
ps1_green='\['"$green"'\]'
ps1_white='\['"$white"'\]'
ps1_red='\['"$red"'\]'
ps1_purple='\['"$purple"'\]'

parse_git_branch() {
   gitstatus=`git status 2> /dev/null`
   if [[ `echo $gitstatus | grep "Changes to be committed"` != "" ]]
   then
       echo -e "${blue}\c"
   elif [[ `echo $gitstatus | grep "Changes not staged for commit"` != "" ]]
   then
       echo -e "${red}\c"
   elif [[ `echo $gitstatus | grep "Untracked"` != "" ]]
   then
       echo -e "${red}\c"
   elif [[ `echo $gitstatus | grep "nothing to commit"` != "" ]]
   then
       echo -e "${green}\c"
   else
       echo -e "${purple}\c"
   fi

   git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}

export PS1="$ps1_purple\W$ps1_white\$(parse_git_branch) $ps1_purple\$$ps1_white "