#!/bin/bash
#
# --- ROCK-COPYRIGHT-NOTE-BEGIN ---
# 
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
# Please add additional copyright information _after_ the line containing
# the ROCK-COPYRIGHT-NOTE-END tag. Otherwise it might get removed by
# the ./scripts/Create-CopyPatch script. Do not edit this copyright text!
# 
# ROCK Linux: rock-src/scripts/Create-UpdList
# ROCK Linux is Copyright (C) 1998 - 2006 Clifford Wolf
# 
# 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; either version 2 of the License, or
# (at your option) any later version. A copy of the GNU General Public
# License can be found at Documentation/COPYING.
# 
# Many people helped and are helping developing ROCK Linux. Please
# have a look at https://www.rocklinux.org/ and the Documentation/TEAM
# file for details.
# 
# --- ROCK-COPYRIGHT-NOTE-END ---

config=default
ignore_chksum=0
root=

while [ "$1" ] ; do
        case "$1" in
            -cfg)
                config=$2 ; shift ; shift ;;
	    -root)
		root=$2 ; shift ; shift ;;
	    -ignore-chksum)
		ignore_chksum=1 ; shift ;;
            *)
                echo ; echo "Usage: $0 [ -cfg <config> ] [ -ignore-chksum ]"
		echo
		echo " Create a list of packages which are active in the current configuration and"
		echo " have changed since the binaries installed on the local system have been"
		echo " generated. The compare is done using the package source checksums stored"
		echo " in /var/adm/packages/<package-name>."
		echo
		echo "	-cfg <config>	only packages active in this configuration are checked"
		echo "	-ignore-chksum	ignore checksums on package source directories when"
		echo "			determining changed packages"
		echo ; exit 1 ;;   
        esac
done

. scripts/parse-config
. scripts/functions

grep '^X' config/$config/packages | cut -f5 -d' ' | \
egrep -vx 'rock-debug|rock-src' | \
while read package ; do
	confdir=""
	pkg=${package%%=*}
	xpkg=${package##*=}
	for x in package/* ; do
	    if [ -d "$x/$pkg" ] ; then
		if [ "$confdir" ] ; then confdir=X
		else confdir="$x/$pkg" ; fi
	    fi
	done

	if [ -z "$confdir" ] ; then
		echo "$pkg: No such package."
	elif [ "$confdir" = X ] ; then
		echo "$pkg: Package in multiple trees."
	elif [ ! -f $root/var/adm/packages/$xpkg ] ; then
		echo "$xpkg: Not installed."
	else
		unset ${!desc_*}
		parse_desc $confdir/$pkg.desc
		o_ver=$(grep '^Package Name and Version' \
				$root/var/adm/packages/$xpkg | cut -f6 -d' ')
		n_ver=${desc_V##*
}
		# this is not a typo! desc_V contains all [V] tags newline separated
		n_ver="${n_ver% }"
		if [ "$o_ver" != "$n_ver" -a "$n_ver" != "0000" ] ; then
			echo "$pkg=$xpkg: New version ($o_ver -> $n_ver)."
		else
		  if [ $ignore_chksum = 0 ] ; then
			o_ck=$(grep '^ROCK Linux Package Source Checksum' \
				$root/var/adm/packages/$xpkg | cut -f6 -d' ')
			n_ck=$(md5sum package/*/$pkg/* 2> /dev/null | \
                                grep -v '\.cache$' | md5sum | cut -f1 -d' ')
			if [ "$o_ck" != "$n_ck" ] ; then
				echo "$pkg=$xpkg: New source checksum ($n_ck)."
			fi
		  fi
		fi
	fi
done