#!/bin/sh

set -e

# Remove a no-longer used conffile
rm_conffile() {
    CONFFILE="$1"

    if [ -e "$CONFFILE" ]; then
        md5sum="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
        old_md5sum="`dpkg-query -W -f='${Conffiles}' multitail | grep $CONFFILE | awk '{print $2}'`"
        if [ "$md5sum" != "$old_md5sum" ]; then
            echo "Obsolete conffile $CONFFILE has been modified by you."
            echo "Saving as $CONFFILE.dpkg-bak ..."
            mv -f "$CONFFILE" "$CONFFILE".bak
        else
            echo "Removing obsolete conffile $CONFFILE ..."
            rm -f "$CONFFILE"
        fi
    fi
}

case "$1" in upgrade)
	rm_conffile "/etc/multitail/colors-example.pl"
	rm_conffile "/etc/multitail/colors-example.sh"
	rm_conffile "/etc/multitail/convert-geoip.pl"
	rm_conffile "/etc/multitail/convert-simple.pl"
	;;
esac