From 598cf4f0b5f142765546a680f68444be1e217587 Mon Sep 17 00:00:00 2001
From: Alejandro Mery <amery@geeks.cl>
Date: Wed, 27 Oct 2004 03:24:26 +0000
Subject: [PATCH] Alejandro Mery: 	* Nice script to compare 2 or 3
 rock-like trees 		* it doesn't implement -v (diff of real
 changes) 		* it doesn't support forks yet

[2004101222391006378] (https://www.rocklinux.net/submaster)



git-svn-id: http://www.rocklinux.org/svn/rock-linux/trunk@4584 c5f82cb5-29bc-0310-9cd0-bff59a50e3bc
---
 misc/archive/compare.sh | 201 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 201 insertions(+)
 create mode 100644 misc/archive/compare.sh

diff --git a/misc/archive/compare.sh b/misc/archive/compare.sh
new file mode 100644
index 000000000..7e4bf70bc
--- /dev/null
+++ b/misc/archive/compare.sh
@@ -0,0 +1,201 @@
+#!/bin/sh
+exec 2>&1
+
+verbose=0
+quiet=0
+source=
+targets=
+repositories=
+packages=
+
+function show_usage() {
+	echo "usage: $0 [-q] [-v] <source> <target> [-repository <repo>|<packages>|]"
+	echo "usage: $0 [-q] -3 <source> <target1> <target2> [-repository <repo>|<packages>|]"
+}
+
+# TODO: it would be great to port it to "-n <n>" instead of -3
+#
+while [ $# -gt 0 ]; do
+	case "$1" in
+		-v)	verbose=1	;;
+		-q)	quiet=1		;;
+		-3)	source="$2"
+			targets="$3 $4"
+			shift 3		;;
+		-repository) 
+			shift
+			repositories="$*"; set -- 
+			;;
+		*)	if [ "$targets" ]; then
+				packages="$*"; set --
+			elif [ "$source" ]; then
+				targets="$1"
+			else
+				source="$1"
+			fi
+	esac
+	shift
+done
+			
+#if [ $verbose -eq 1 ]; then
+#	echo "   verbosity: $verbose"
+#	echo "      source: $source"
+#	echo "     targets: $targets"
+#	echo "repositories: $repositories"
+#	echo "    packages: $packages"
+#fi 1>&2
+
+function diff_package() {
+	local source="$1"
+	local target="$1"
+
+	# files on source
+	for x in $source/*; do
+		if [ -d "$x" ]; then
+			diff_package $x $target/${x##*/}
+		elif [ -f $x -a -f $target/${x##*/} ]; then
+			echo diff -u $x $target/${x##*/}
+		else
+			echo diff -u $x /dev/null
+		fi
+	done
+	# TODO: files only on target
+}
+
+# grabdata confdir field
+function grabdata() {
+	local confdir=$1
+	local pkg=$2
+	local field=$3
+	local output=
+
+	case "$field" in
+		version)	output=$( grabdata_desc $confdir/$pkg.desc $field ) ;;
+		*)		output=$( grabdata_cache $confdir/$pkg.cache $field ) ;;
+	esac
+	if [ -z "${output// /}" ]; then
+		echo "UNKNOWN"
+	else
+		echo "$output"
+	fi
+}
+function grabdata_desc() {
+	local output=
+	if [ -f "$1" ]; then
+		case "$2" in
+			version)	output=$( grep -e "^\[V\]" $1 | cut -d' ' -f2- )	;;
+		esac
+	fi
+	echo "$output"
+}
+function grabdata_cache() {
+	local output=
+	if [ -f "$1" ]; then
+		case "$2" in
+			status)	if grep -q -e "^\[.-ERROR\]" $1; then
+					output=BROKEN
+				else
+					output=BUILT
+				fi	;;
+			size)	output=$( grep -e "^\[SIZE\]" $1 | cut -d' ' -f2- )	;;
+		esac
+	fi
+	echo "$output"
+}
+function compare_package() {
+	local pkg=${1##*/}
+	local source=$1
+	local target= x= missing=0
+	shift;
+
+	srcver=$( grabdata $source $pkg version )
+	srcstatus=$( grabdata $source $pkg status )
+	srcsize=$( grabdata $source $pkg size )
+	tgtver=
+	tgtstatus=
+	tgtsize=
+
+	for x; do
+		target=$( echo $x/package/*/$pkg | head -n 1 )
+		if [ -d "$target" ]; then
+			tgtver="$tgtver:$( grabdata $target $pkg version )"
+			tgtstatus="$tgtstatus:$( grabdata $target $pkg status )"
+			tgtsize="$tgtsize:$( grabdata $target $pkg size )"
+		else
+			tgtver="$tgtver:MISSING"
+			tgtstatus="$tgtstatus:MISSING"
+			tgtsize="$tgtsize:MISSING"
+			missing=1
+		fi
+	done
+	
+	tgtver="${tgtver#:}"
+	tgtstatus="${tgtstatus#:}"
+	tgtsize="${tgtsize#:}"
+
+	equalver=1 equalstatus=1
+	IFS=':' ; for x in $tgtver; do
+		[ "$x" != "$srcver" ] && equalver=0
+	done
+	IFS=':' ; for x in $tgtstatus; do
+		[ "$x" != "$srcstatus" ] && equalstatus=0
+	done
+
+	if [ $equalver -eq 1 ]; then
+		version=$srcver
+	else
+		version="$srcver -> $tgtver"
+	fi
+	
+	if [ $equalstatus -eq 1 ]; then
+		status="$srcstatus"
+	else
+		status="$srcstatus -> $tgtstatus"
+	fi
+	
+	if [ $missing -eq 1 ]; then
+		echo "- $pkg ($version) ($status) ($srcsize -> $tgtsize)" 1>&2
+	elif [ $equalver -eq 1 ]; then
+		[ $quiet -eq 0 ] && echo "* $pkg ($version) ($status) ($srcsize -> $tgtsize)" 1>&2
+	else
+		echo "+ $pkg ($version) ($status) ($srcsize:$tgtsize)" 1>&2
+		[ "$verbose" -eq 1 ] && diff_package $source $target
+	fi
+}
+
+if [ -z "$source" -o -z "$targets" ]; then
+	show_usage; exit 1
+fi
+
+allexist=1
+for x in $source $targets; do
+	[ ! -d "$x/" ] && allexist=0; break
+done
+
+if [ $allexist -eq 1 ]; then
+	echo -e "from: $source\nto..: $targets" 1>&2
+
+	if [ "$repositories" ]; then
+		for repo in $repositories; do
+			for x in $source/package/$repo/*; do
+				[ -d "$x" ] && ( compare_package $x $targets )
+			done
+		done
+	elif [ "$packages" ]; then
+		for pkg in $packages; do
+			x=$( echo $source/package/*/$pkg | head -n 1 )
+			[ -d "$x" ] && compare_package $x $targets
+		done
+	else
+		for repo in $source/package/*; do
+			echo "repository: ${repo##*/}" 1>&2
+			for x in $repo/*; do
+				[ -d "$x" ] && compare_package $x $targets
+			done
+		done
+	fi
+else
+	show_usage
+	exit 1
+fi
+