#!/bin/bash
set -e

[[ ! -x `which systemctl` ]] && echo error: systemctl executable not found && exit 1

export DEBIAN_FRONTEND=noninteractive
export SYSTEMD_COLORS=0
export SYSTEMD_URLIFY=0
export LANG=en_US.UTF-8
export LANGUAGE=en_US:en
export LC_ALL=en_US.UTF-8

echo -n checking for inetutils-syslogd package ...
if dpkg -s inetutils-syslogd >/dev/null 2>&1; then
	echo already there
else
	echo missing

	pkglog=/var/tmp/debian-syslog.log

	echo -n update package cache \($logfile\) ...
	apt-get -q -y update > $pkglog 2>&1 && echo done
	echo '' >> $pkglog

	echo -n make sure rsyslog is not there \($logfile\) ...
	apt-get -q -y purge rsyslog >> $pkglog 2>&1 && echo done
	echo '' >> $pkglog

	echo -n install few packages \($pkglog\) ...
	apt-get -q -y install inetutils-syslogd >> $pkglog 2>&1 && echo done
	echo '' >> $pkglog

	mv -f /etc/default/inetutils-syslogd /etc/default/inetutils-syslogd.dist
	grep -vE '^#|^$' /etc/default/inetutils-syslogd.dist > /etc/default/inetutils-syslogd.clean
	grep -vE '^#|^$' /etc/default/inetutils-syslogd.dist > /etc/default/inetutils-syslogd

	changed=1

	unset pkglog
fi

(( changed == 1 )) && echo changed - all done && exit 0

echo all done - nothing changed