my git shell prompt

my git shell prompt

parse_git_branch() {
  RSLT=''
  GIT_BRANCH=`git branch 2> /dev/null | sed -e '/^[^*]/d' | awk '{print $2}'`
  if [ "$GIT_BRANCH" ]
    then
        GIT_STATUS=`git status 2> /dev/null | grep 'working directory clean'`
        CLR='2'
        if [ "$GIT_STATUS" ]
        then
            CLR='2'
      else
            CLR='1'
      fi
        RSLT="^[[3${CLR};40m[${GIT_BRANCH}]^[[0m"
    fi
    echo $RSLT
}
PS1="\w\$(parse_git_branch) $ "
alias ls="ls -G"