Git PS1 with current branch and color highligth

git-prompt.sh

RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
YELLOW=$(tput setaf 3)
WHITE=$(tput setaf 7)
NORMAL=$(tput sgr0)

_git-branch() {
    local branch="$(git symbolic-ref HEAD 2> /dev/null | sed -e 's/refs\/heads\///')"
    test "x$branch" != x && echo " ($branch)"
}

_git-color() {
    local stat="$(git status 2> /dev/null)"
    if test "x$stat" != x; then
        local color=$RED
        test "x$(echo $stat | grep 'working directory clean')" != x && color=$GREEN
        test "x$(echo $stat | grep 'working tree clean')" != x && color=$GREEN
        test "x$(echo $stat | grep 'branch is ahead')" != x && color=$YELLOW
        test "x$(echo $stat | grep 'untracked files present')" != x && color=$RED
        test "x$(echo $stat | grep 'not staged for commit')" != x && color=$RED
        test "x$(echo $stat | grep 'to be committed')" != x && color=$RED
	echo $color
   fi
}

export PS1="\[\$WHITE\]\W\[\$(_git-color)\]\$(_git-branch)\[\$NORMAL\] $ "

export CLICOLOR=1
export LSCOLORS=gxfxcxdxbxegedabagaced