#!/bin/sh
set -e

#DEBHELPER#

case "$1" in
    install)
    ;;

    configure|reconfigure)
        # Restart procps to reload sysctl.d files
        invoke-rc.d procps restart
        # Get the version of the current loaded module:
        old_version="$(cat /sys/module/mars/version 2>/dev/null)" || exit 0
        # Get the version of the latest available module:
        new_version="$(modinfo -F version mars 2>/dev/null)" || exit 0
        # See if the new one is actually newer:
        dpkg --compare-versions "$old_version" lt "$new_version" || exit 0
        # Trigger an update notification that recommends a reboot:
        touch /run/reboot-required || true
        grep -Fqsx mars-dkms /run/reboot-required.pkgs || \
            echo mars-dkms >> /run/reboot-required.pkgs || true
        ;;
    *)
        ;;
esac

exit 0