.bash_prompt

function git-branch-name
{
    echo $(git branch | grep "^\*" | awk -F* {'print $NF'})
}

function git-dirty {
    st=$(git status 2>/dev/null | tail -1)
    if [[ $st != "nothing to commit, working tree clean" ]] ; then
        echo "*"
    fi
}

function git-unpushed {
    brinfo=$(git status | grep ahead)
    if [[ $brinfo =~ ([0-9]+)[[:space:]]commit ]] ; then
        echo "(${BASH_REMATCH[1]})"
    fi
}

function gitify {
    git rev-parse --git-dir > /dev/null 2>&1
    if [[ $? != 0 ]] ; then
        echo ""
    else
        echo $(git-branch-name)$(git-dirty)$(git-unpushed)
    fi
}

function make-prompt
{
    local RED="\[\e[0;31m\]"
    local GREEN="\[\e[0;32m\]"
    local LIGHT_GRAY="\[\e[0;37m\]"
    local CYAN="\[\e[0;36m\]"
 
    PS1="\
${GREEN} \W\
${RED} \$(gitify)\
${GREEN}\
${LIGHT_GRAY} $ "

}

make-prompt