#!/bin/sh
[[ -d .git ]] || { echo "Not at root of pm-utils repository, dying horribly"; exit 1; }
cp .git/HEAD .git/HEAD.mkrpm
cp .git/index .git/index.mkrpm
git rev-parse --verify rpm || exit 1

export PM_UTILS_DIR="$(pwd)"
export TIMESTAMP="$(git log --pretty=format:"%ct" |head -1)"
export GITREV="$(git log --pretty=format:"%t" |head -1)"
git checkout -b __rpm_throwaway_branch
git merge rpm

sed -e "s,[@]TIMESTAMP[@],$TIMESTAMP,g" \
    -e "s,[@]GITREV[@],$GITREV,g" <pm-utils.spec.in >pm-utils.spec

rpmbuild -bb pm-utils.spec
mv -f .git/HEAD.mkrpm .git/HEAD
mv -f .git/index.mkrpm .git/index
git checkout HEAD
git branch -D __rpm_throwaway_branch