openvz-sources/rpm2patches


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#!/bin/bash

if [ -z "$1" ]; then
	echo "Usage: rpm2patches <srcrpm>"
	exit 1
fi


tmpdir=$(mktemp -d)
srcrpm=$(basename ${1})
srctar=${srcrpm/.rpm/.tar}
rpmdir=$(dirname ${1})

pushd ${rpmdir} >/dev/null

echo " * Converting rpm to tar"
rpm2tar ${srcrpm} || exit 2

echo " * Unpacking to ${tmpdir}"
tar xf ${srctar} -C ${tmpdir} || exit 3

popd >/dev/null

echo " * Renaming patches"

pushd ${tmpdir} >/dev/null

krelease=$(grep 'define krelease' kernel-ovz.spec|awk '{print $3}')
patchlist=$(grep '^Patch' kernel-ovz.spec | sed -r 's/Patch([0-9]+): (.*)/\1_\2/g' | sed -r "s/%\{krelease\}/${krelease}/g");

for i in ${patchlist}; do
	nr=${i%%_*}
	src=${i#*_}
	dst=$(printf '%04d_%s\n' ${nr} ${src})
	dst="${dst%.patch}.patch"
	mv ${src} ${dst}
done

popd >/dev/null

echo ">> Patches are at ${tmpdir}"