qemu-kvm-rebuild.sh

#!/bin/bash

NAME="qemu-kvm"
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
RPMBUILD_OPTS="--define '_topdir ${DIR}' --define 'dist .el6_5' --define 'rhel 6'"

# Default variables that have command line flags
QUIET=0
DEBUG=0
TRACE=0
NOOP=0
MOCK=0
RPMBUILD=0

exec_cmd() {
  cmd="$1"
  RET=0

  [ $NOOP -eq 1 ] && noop_prefix="(NOOP) " || noop_prefix=""

  echo "${noop_prefix}Executing: ${cmd}"
  if [ $NOOP -eq 0 ]; then
    if eval $cmd; then
      RET=0
    else
      RET=1
    fi
  fi

  return $RET
}

usage () {

cat << EOF
usage: $(basename $0) [OPTIONS] QEMU_KVM_SRPM

This script builds RPMs for $NAME.

OPTIONS:

  --mock          Run mock rebuild of SRPMs
  --rpmbuild      Run rpmbuild -ba
  --debug         Show debug output
                  This option also removes the mock --quiet option.
  --trace         Show the mock debug output
  --noop          Do not execute commands
  -h, --help      Show this message

EXAMPLE:

Build SRPMs

$(basename $0) qemu-kvm-0.12.1.2-2.415.el6_5.8.src.rpm

Build SRPMs and run mock rebuild

$(basename $0) --mock qemu-kvm-0.12.1.2-2.415.el6_5.8.src.rpm

Build RPMs

$(basename $0) --rpmbuild qemu-kvm-0.12.1.2-2.415.el6_5.8.src.rpm

EOF
}

ARGS=`getopt -o h -l mock,rpmbuild,help,debug,trace,noop -n "$0" -- "$@"`

[ $? -ne 0 ] && { usage; exit 1; }

eval set -- "${ARGS}"

while true; do
  case "$1" in
    -h|--help)
      usage
      exit 0
      ;;
    --mock)
      MOCK=1
      shift
      ;;
    --rpmbuild)
      RPMBUILD=1
      shift
      ;;
    --debug)
      DEBUG=1
      QUIET=0
      shift
      ;;
    --trace)
      TRACE=1
      shift
      ;;
    --noop)
      NOOP=1
      shift
      ;;
    --)
      shift
      break
      ;;
    *)
      break
      ;;
  esac
done

if [ $# -ne 1 ]; then
  echo "Missing QEMU_KVM_SRPM argument"
  usage
  exit 1
fi

QEMU_KVM_SRPM=$1
QEMU_KVM_LOCAL_SRPM=$(echo ${QEMU_KVM_SRPM} | sed -r 's|^(.*).src.rpm|\1.local.src.rpm|g')

# Set variables based on command line flags
[ $DEBUG -eq 1 ] && set -x
[ $TRACE -eq 1 ] && mock_trace="--trace" || mock_trace=""
[ $QUIET -eq 1 ] && mock_quiet="--quiet" || mock_quiet=""

exec_cmd "cd ${DIR}"

if [ ! -f "SOURCES/${QEMU_KVM_SRPM}" ]
then
  exec_cmd "wget http://vault.centos.org/6.5/updates/Source/SPackages/${QEMU_KVM_SRPM} -O SOURCES/${QEMU_KVM_SRPM} &>/dev/null"
  if [ $? -ne 0 ]; then
    echo "Failed to download"
    exit 1
  fi
fi

exec_cmd "cd SOURCES"
exec_cmd "rpm2cpio ${QEMU_KVM_SRPM} | cpio -dimv --quiet 2>/dev/null"
[ $? -ne 0 ] && { echo "Failed extracting ${QEMU_KVM_SRPM}, exiting..."; exit 1; }

exec_cmd "cd ${DIR}"
exec_cmd "sed 's|^%define buildid %{nil}$|%define buildid .local|g' SOURCES/qemu-kvm.spec > ./qemu-kvm.spec"
[ $? -ne 0 ] && { echo "Failed modifying qemu-kvm.spec, exiting..."; exit 1; }

if [ $MOCK -eq 1 ]; then
  exec_cmd "rpmbuild -bs ${RPMBUILD_OPTS} qemu-kvm.spec 2>/dev/null"
  [ $? -ne 0 ] && { echo "Failed building SRPM, exiting..."; exit 1; }

  exec_cmd "/usr/bin/mock -r epel-6-x86_64 ${mock_quiet} ${mock_trace} --resultdir=${DIR}/RPMS/ ${RPMBUILD_OPTS} --rebuild ${DIR}/SRPMS/${QEMU_KVM_LOCAL_SRPM}"
elif [ $RPMBUILD -eq 1 ]; then
  exec_cmd "rpmbuild -ba ${RPMBUILD_OPTS} qemu-kvm.spec"
else
  exec_cmd "rpmbuild -bs ${RPMBUILD_OPTS} qemu-kvm.spec"
fi

exit 0