rocklinux/scripts/Create-DescPatch

#!/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-DescPatch
# ROCK Linux is Copyright (C) 1998 - 2003 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 http://www.rocklinux.org/ and the Documentation/TEAM
# file for details.
# 
# --- ROCK-COPYRIGHT-NOTE-END ---

if [ "$1" = "-repository" ] ; then
	shift ; for y ; do
		for x in package/$y/[a-z0-9]* ; do $0 ${x##*/} ; done
	done
	exit 0
fi

if [ "$1" != "${1#-}" -o $# -eq 0 ] ; then
	echo
	echo "Usage: $0 <package(s)>"
	echo "or     $0 -repository <repositories>"
	echo
	echo " \"Normalize\" package .desc files for single packages or repositories:"
	echo " group tags as described in Documentation/Developers/PKG-DESC-FORMAT,"
	echo " and remove extra empty lines and commented out tags."
	echo " The files are not modified directly, instead a patch is ouput that"
	echo " can be used to apply changes."
	echo 
	exit 1
fi

for package ; do
	lastpdir=""
	for pdir in package/*/$package ; do
		[ "$lastpdir" ] && echo "$package: Found dup: $pdir $lastpdir"
		lastpdir="$pdir"
	done

	if [ -f $pdir/$package.desc ] && ! grep -q '^#if' $pdir/$package.desc; then
		tempfn=`mktemp`
		{ echo ; nl=0
		while read line ; do
			if [ "$line" = "--" -a "$nl" = 0 ] ; then
				echo ; nl=1
			fi
			if [ "${line#\[}" != "$line" ] ; then
			    for x in $line ; do
				x="`echo $x | tr -d '[]'`"
				grep "^\[$x\]" $pdir/$package.desc && nl=0
			    done
			fi
		done < Documentation/Developers/PKG-DESC-FORMAT
		if [ "$nl" = 0 ] ; then echo ; fi
		grep "^\[X" $pdir/$package.desc && echo
		} > $tempfn
		diff -u ./$pdir/$package.desc $tempfn
		rm -f $tempfn
	fi
done