#!/bin/sh

set -e

case "$1" in
    configure)
    if [ "$(uname -s)" = "Linux" ]; then
	# install the udev file only once:
	#    - the first time the package is installed
	# OR - the first time the package is upgraded from a version earlier than 3.9.6-2
	if [ -z "$2" ] || dpkg --compare-versions "$2" lt 3.9.6-2; then
	    rm -f /etc/udev/rules.d/025_libticables.rules
	    rm -f /etc/udev/rules.d/025_ticables.rules
	fi

	if [ -f /etc/hotplug/usb/tiglusb ]; then
	    rm -f /etc/hotplug/usb/tiglusb
	fi

	if [ -f /etc/hotplug/usb/libticables.usermap ]; then
	    rm -f /etc/hotplug/usb/libticables.usermap
	fi
    fi

    # begin-remove-after: released:forky
    # protective diversion of files moved from / to /usr, to avoid file loss.
    # Only for upgrades.
    # At this point, the package will have installed the same file in /usr.
    dpkg-divert --package usr-is-merged --no-rename \
        --divert /lib/udev/rules.d/69-libticables2-8.rules.usr-is-merged \
        --remove /lib/udev/rules.d/69-libticables2-8.rules
    # end-remove-after
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

    *)
    echo "$0 called with unknown argument '$1'" >&2
    exit 1
    ;;
esac