function is_git_repo() {
    if [ -d .git ]; then
        return 0;
    fi
    return 1;
}

function get_git_branch() {
    if is_git_repo ; then
        printf "($(git status 2> /dev/null | awk '/branch /{print $3; exit;}'))"
    fi 
}

function get_git_up2date() {
    if is_git_repo ; then 
        if [ $(git status 2>/dev/null | awk '/nothing to commit, working tree clean/{print $1}') ]; then
            printf ${grn_fn};
        else
            printf ${red_fn};
        fi
    fi
}


PS1=${ylw}'\u:'${blu}'\W '${wht}'$(get_git_branch)\[$(get_git_up2date)\]\$ '${clr}