root/packaging/centuryegg/build-libxml-rpm

#!/bin/bash
LIBXML_VERSION=2.6.26-2.1.2.8
LIBXML_MAJOR_VERSION=$(echo $LIBXML_VERSION | cut -d "-" -f 1)
mkdir -p logs rpms srpms
rpm_arch=`rpmbuild -E %{_arch} 2>/dev/null`
if [ -f rpms/libxml2-$LIBXML_VERSION.${rpm_arch}.rpm ]
then
    echo "Not building libxml2 as rpms/libxml2-$LIBXML_VERSION.${rpm_arch}.rpm already exists"
    exit
fi
if [ -f /etc/fedora-release ]
then
        sudo yum -y install rpmdevtools || exit
        SETUPTREE=rpmdev-setuptree
elif [ -f /etc/redhat-release ]
then
        sudo yum -y install fedora-rpmdevtools || exit
        SETUPTREE=fedora-buildrpmtree
        REDHAT_VERSION=`cat /etc/redhat-release | cut -d " " -f 3 | cut -d "." -f 1`
fi
$SETUPTREE || exit
(
cd srpms
wget -c http://mirror.centos.org/centos/5/os/SRPMS/libxml2-$LIBXML_VERSION.src.rpm
rpm -ivh --nomd5 libxml2-$LIBXML_MAJOR_VERSION*.src.rpm
)
# add to changelog
src_rpm=`rpmbuild -bs --nodeps $HOME/rpmbuild/SPECS/libxml2.spec | sed 's/^Wrote: //'`
sudo cp -pv /etc/yum.conf{,.builddep.orig}
sudo python -c "import ConfigParser ; cp = ConfigParser.RawConfigParser() ; cp.read('/etc/yum.conf') ; cp.set('main', 'assumeyes', '1') ; cp.write(open('/etc/yum.conf', 'w'))"
sudo yum-builddep $src_rpm || finished=1
sudo cp -pv /etc/yum.conf{.builddep.orig,}
rm $src_rpm
[[ "$finished" == 1 ]] && exit
QA_RPATHS=0x0001 rpmbuild  -ba ~/rpmbuild/SPECS/libxml2.spec >logs/build-libxml2.log 2>&1
result=$?
tail logs/build-libxml2.log
cp -pv ~/rpmbuild/RPMS/$rpm_arch/libxml2-{,debuginfo-,devel-}*$LIBXML_MAJOR_VERSION*.rpm rpms/
cp -pv ~/rpmbuild/SRPMS/libxml2-$LIBXML_MAJOR_VERSION*.rpm rpms/