Git branch in Mac OSX bash prompt

I tried using the same changes for my linux boxes on my macbook air and they didn't work, so I googled around and stumbled upon using this instead:

c_cyan=`tput setaf 6`
c_red=`tput setaf 1`
c_green=`tput setaf 2`
c_sgr0=`tput sgr0`
parse_git_branch (){
    if git rev-parse --git-dir >/dev/null 2>&1
    then
        gitver=$(git branch 2>/dev/null| sed -n '/^\*/s/^\* //p')
    else
        return 0
    fi
    echo -e $gitver
}
branch_color (){
    if git rev-parse --git-dir >/dev/null 2>&1
    then
        color=""
    if git diff --quiet 2>/dev/null >&2 
    then
        color="${c_green}"
    else
        color=${c_red}
    fi
    else
        return 0
    fi
    echo -ne $color
}

#Branch First
#PS1='[\[$(branch_color)\]$(parse_git_branch)\[${c_sgr0}\]] \u@\[${c_red}\]\w\[${c_sgr0}\]: '
#Branch Last
PS1=' \u@\[${c_red}\]\w\[${c_sgr0}\]: [\[$(branch_color)\]$(parse_git_branch)\[${c_sgr0}\]] '

original: http://asemanfar.com/Current-Git-Branch-in-Bash-Prompt