#!/bin/sh

set -e

# summary of how this script can be called:
#
#   * <postrm> `remove'
#   * <postrm> `purge'
#   * <old-postrm> `upgrade' <new-version>
#   * <disappearer's-postrm> `disappear' <overwriter> <overwriter-version>
#   * <new-postrm> `failed-upgrade' <old-version> <new-version>
#   * <new-postrm> `abort-install'
#   * <new-postrm> `abort-install' <old-version> <new-version>
#   * <new-postrm> `abort-upgrade' <old-version> <new-version>
#
# for details, see https://www.debian.org/doc/debian-policy/ or
# the debian-policy package

delete_protective_diversion() {
    local usrfile="$1"
    local firstver="$2"

    if [ "$3" != "--" ]; then
        echo "delete_protective_diversion called with the wrong number of arguments" >&2
        return 1
    fi
    for _ in $(seq 1 3); do
        shift
    done

    # If the diversion doesn't exist there's nothing to clean up
    if [ -z "$(dpkg-divert --list "$usrfile")" ]; then
        return 0
    fi

    dpkg-divert \
        --no-rename \
        --divert "$usrfile.usr-is-merged" \
        --remove "$usrfile"
}

DAEMON_LOCK_UNITS="
    virtlockd-admin.socket
    virtlockd.service
    virtlockd.socket
"

case "$1" in
    failed-upgrade|abort-install|abort-upgrade)
        for unit in $DAEMON_LOCK_UNITS; do
            delete_protective_diversion \
                "/lib/systemd/system/$unit" \
                "10.6.0-3~" \
                -- \
                "$@"
        done
    ;;

    remove|purge|upgrade|disappear)
    ;;

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

# Automatically added by dh_installsystemd/13.24.2
if [ "$1" = remove ] && [ -d /run/systemd/system ] ; then
	systemctl --system daemon-reload >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_installsystemd/13.24.2
if [ "$1" = "purge" ]; then
	if [ -x "/usr/bin/deb-systemd-helper" ]; then
		deb-systemd-helper purge 'virtlockd-admin.socket' 'virtlockd.service' 'virtlockd.socket' >/dev/null || true
	fi
fi
# End automatically added section


exit 0