#! /bin/bash

# Step script for Debian major version upgrade for fuss
# 
# Copyright (C) 2025 FUSS Project <info@fuss.bz.it>
# Authors: Simone Piccardi <piccardi@truelite.it>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program or from the site that you downloaded it
# from; if not, write to the Free Software Foundation, Inc., 59 Temple
# Place, Suite 330, Boston, MA  02111-1307   USA

#
# script to apply missing upgrades
#
export DEBIAN_FRONTEND=noninteractive
. $SCRIPTS_DIR/functions.sh

# starting
echo "Step $STEP: Apply missing updates to Debian 12"
echo "=========================================="
echo

check_already_debian13
exec_dpkg_configure

echo "# Perform a package sources update"
apt-get --yes update
if [ $? != 0 ]; then
    echo "#   Cannot update sources, we must stop"
    echo FAILED > $STEPRES
    exit 1
fi

echo "# Check and do packages upgrade"
UNUPGRADED=$(apt list --upgradable 2> /dev/null | wc -l)
if [ $UNUPGRADED -gt 1 ]; then
    echo "#   Found $UNUPGRADED unupgraded packages, upgrading"
    apt-get -q --yes upgrade
    if [ $? != 0 ]; then
	echo "#     Failed package upgrades, we must stop"
	echo FAILED > $STEPRES
	exit 1
    else
	echo "#   Upgrades done"
	echo PASSED > $STEPRES
    fi
else
    echo "#   Nothing to upgrade"
    echo PASSED > $STEPRES
fi
