my bash_profile with git status parsing

.bash_profile.sh

export ENV=$HOME/.bashrc

if [ -f "$ENV" ]; then
  . "$ENV"
fi

# adds colors!
export CLICOLOR=1
# export LSCOLORS=EHfxCxDxbxegedabagacad # don't need in iterm2

export DISPLAY=:0.0
export LC_CTYPE=en_US.UTF-8
export RI="--format ansi --width 80"
export VISUAL=vim

if [ -f `brew --prefix`/etc/bash_completion.d/git-completion.bash ]; then
  . `brew --prefix`/etc/bash_completion.d/git-completion.bash
fi

# Colours
        RED="\[\033[0;31m\]"
     YELLOW="\[\033[0;33m\]"
      GREEN="\[\033[0;32m\]"
       BLUE="\[\033[0;34m\]"
  LIGHT_RED="\[\033[1;31m\]"
LIGHT_GREEN="\[\033[1;32m\]"
      WHITE="\[\033[1;37m\]"
 LIGHT_GRAY="\[\033[0;37m\]"
 COLOR_NONE="\[\e[0m\]"
       GRAY="\[\033[1;30m\]"

export GIT_PS1_SHOWDIRTYSTATE=1
export GIT_PS1_SHOWUNTRACKEDFILES=1
export GIT_PS1_SHOWSTASHSTATE=1
export GIT_PS1_SHOWUPSTREAM="auto"

function parse_git_branch {
  if test -n __git_ps1; then
    branch_parse="\(([^ \*\+\$\%<>\=]+)[ ]?([\*\+\$\%<>\=]*)?\)"
    branch=`__git_ps1`
    state=""
    # unstaged (*)
    # staged (+)
    # stashed ($)
    # untracked (%)

    # behind (<)
    # ahead (>)
    # diverged (<>)

    if [[ $branch =~ $branch_parse ]]; then
      branch=${BASH_REMATCH[1]}
      local_status=${BASH_REMATCH[2]}
      len=${#local_status}
      color="${GREEN}"
      state=""

      for ((i=0; i < len; i++))
      do
        case ${local_status:$i:1} in
          '*')
            color="${RED}"
            state="${state}${RED}M";;
          '+')
            color="${GREEN}"
            state="${state}${GREEN}M";;
          '$')
            color="${BLUE}"
            state="${state}${BLUE}$";;
          '%')
            color="${BLUE}"
            state="${state}${BLUE}??";;
          '<>')
            # diverged
            color="${RED}"
            remote_status="${RED}⤧ ";;
          '>')
            # ahead
            color="${RED}"
            remote_status="${RED}⬆ ";;
          '<')
            # behind
            color="${RED}"
            remote_status="${RED}⬇ ";;
          '=')
            color=${GREEN};;
        esac
      done

      # return the output you want here
      echo "($color$branch${COLOR_NONE})$state$remote_status" # ($local_status)"
    else
      echo "$branch"
    fi
  fi
}

#sets what the prompt should be
function prompt_func() {
  previous_return_value=$?;
  prompt="$(parse_git_branch)${COLOR_NONE}"
  if test $previous_return_value -eq 0
  then
    PS1="${LIGHT_GRAY}侍 ${COLOR_NONE}${prompt}\W/ "
  else
    PS1="${RED}侍 ${COLOR_NONE}${prompt}\W/ "
  fi
}

PROMPT_COMMAND=prompt_func