nvidia.install

post_install() {
    dkms install -m nvidia -v ${1%%-*}
}
pre_upgrade() {
    local curver=${2%%-*}
    # $2 is unset due to a bug. Query current version using pacman as fallback
    [ -n "$curver" ] || curver=$(pacman -Qi dkms-nvidia | awk '/^Version/{print $3}')
    pre_remove $curver
}
post_upgrade() {
    post_install ${1%%-*}
}
pre_remove() {
    dkms remove -m nvidia -v ${1%%-*} --all
}