#!/bin/sh -
#
#   Copyright (C) 2006-2008 Oliver Fromme <olli@fromme.com> <olli@secnetix.de>
#   All rights reserved. Standard 2-clause BSD license and disclaimer apply.
#
#   This is a periodic script for FreeBSD.
#
#   It produces a diff-like listing of changes made to locally
#   installed packages (i.e. updated, removed and added packages)
#   which is included in the "daily run output".
#
#   Put this script in the  /usr/local/etc/periodic/daily  directory,
#   (create that directory if it doesn't exist yet), and add this line
#   to the  /etc/periodic.conf  file (create that file if it doesn't
#   exist yet):   daily_status_pkg_changes_enable="YES"
#

if [ -r /etc/defaults/periodic.conf ]; then
    . /etc/defaults/periodic.conf
    source_periodic_confs
fi

case "$daily_status_pkg_changes_enable" in
    [Yy][Ee][Ss])
	if [ ! -f /usr/sbin/pkg_info ]; then
	    echo '$daily_status_pkg_changes_enable is enabled but' \
		 "/usr/sbin/pkg_info doesn't exist"
	    rc=2
	else
	    bak=/var/backups
	    rc=0

	    if [ -f $bak/pkg_info.bak ]; then
	    	mv -f $bak/pkg_info.bak $bak/pkg_info.bak2
	    fi
	    /usr/sbin/pkg_info > $bak/pkg_info.bak

	    if ! cmp -sz $bak/pkg_info.bak $bak/pkg_info.bak2; then
		echo ""
		echo "Changes in installed packages:"
		diff -U 0 $bak/pkg_info.bak2 $bak/pkg_info.bak \
		| grep '^[-+][^-+]' | sort -k 1.2
	    fi
	fi
	;;

    *)
	rc=0
	;;
esac

exit $rc