post_install() {
    echo ">>> You need the demo/shareware pak0.pak (included in the nquake AUR package)"
    ecgo ">>> and pak1.pak (retail) in order to play."
    echo ">>>   Copy or symlink them into /opt/quake/id1/"
}

post_upgrade() {
    post_install $1
}

pre_remove() {
    /bin/true
}

op=$1
shift

$op $*