#!/bin/bash

set -eux

[ "$(id -u)" = "0" ]

trap "echo FAIL" ERR

# order doesn't matter
packages=(rsyslog busybox-syslogd)
# packages=(busybox-syslogd rsyslog)

# sid behavior:
#  Removed "/etc/systemd/system/syslog.service".

# mantic/bookworm behavior:
#  Failed to preset unit, file "/etc/systemd/system/syslog.service" already
#    exists and is a symlink to "/lib/systemd/system/rsyslog.service".
#  /usr/bin/deb-systemd-helper: error: systemctl preset failed on
#    busybox-syslogd.service: No such file or directory

first=${packages[0]}
second=${packages[1]}

apt -y purge "${packages[@]}"

apt -y install $first
apt -y remove $first

apt -y install $second

ls -al /etc/systemd/system/syslog.service
systemctl is-active syslog

echo PASS