Golan Zakai

SRPM_URL='http://mirror.centos.org/centos/5/updates/SRPMS/'
PATCH_URL='http://www.ssi.bg/~ja/nfct/'
PATCH_FILE='ipvs-nfct-2.6.16-1.diff'
BUILD_OPTIONS='--with baseonly --without debug --without debuginfo'

cd
rm rpmbuild -rf
mkdir -p rpmbuild/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
echo '%_topdir %(echo $HOME)/rpmbuild' > .rpmmacros

mkdir files -p
cd files
if [ $# -eq "1" ]; then
        echo "selected kernel -> $1"
        if [ -f $1 ]; then
                echo "kernel source rpm exist"
        else
                echo "fetching kernel source rpm"
                wget $SRPM_URL$1
        fi
else
        echo "please provide one of the following kerenels as parameter:"
        curl -s $SRPM_URL | grep -i kernel | sed s/"\(.*<a href=\"\)\([^\"]*\)\">\(.*\)"/\\2/g;
        exit 1
fi

echo "extracting package"
rpm -i $1 2>&1 | grep -v mockb

cd ~/rpmbuild/SOURCES

echo "downloading NFCT PATCH"
wget $PATCH_URL$PATCH_FILE

echo "patching kernel configs"

for i in `ls kernel-2.6.18-*.config`; do
        total_lines=`cat $i | wc -l`
        line_number=`cat $i | grep -n CONFIG_IP_VS_FTP | grep -o "[0-9]\+"`
        head -n $line_number $i > $i.tmp
        echo "CONFIG_IP_VS_NFCT=y" >> $i.tmp
        tail -n $(($total_lines - $line_number)) $i >> $i.tmp
        mv $i.tmp $i
done;

echo "patching kernel spec file"

PATCH_LOCATION1='# adds rhel version info to version.h'
PATCH_LOCATION2='# correction of SUBLEVEL/EXTRAVERSION in top-level source tree Makefile'

cd ~/rpmbuild/SPECS/

cat kernel-2.6.spec |
sed -e "s,$PATCH_LOCATION1,Patch40000: ipvs-nfct-2.6.16-1.diff\n$PATCH_LOCATION1,g" |
sed -e "s,$PATCH_LOCATION2,%patch40000 -p1\n$PATCH_LOCATION2,g" > kernel-2.6.spec.tmp
mv kernel-2.6.spec.tmp kernel-2.6.spec
echo "unpacking kernel and applying patches"
rpmbuild -bp --target=`uname -m` kernel-2.6.spec 2> prep-err-step1.log | tee prep-out-step1.log

cp ~/rpmbuild/BUILD/kernel-2.6.18/linux-2.6.18.`uname -m`/configs/* ~/rpmbuild/SOURCES
echo "building kernel rpms"
rpmbuild -bb $BUILD_OPTIONS --target=`uname -m` kernel-2.6.spec 2> build-err.log | tee build-out.log