#!/bin/bash
#
# mkrpm: package the dist/install output of a Xen build in an .rpm
#
# Takes 2 arguments, the path to the dist directory and the version

set -e

if [[ -z "$1" || -z "$2" ]] ; then
  echo "usage: $0 path-to-XEN_ROOT xen-version"
  exit 1
fi

xenroot="$1"

# rpmbuild doesn't like dashes in the version; break it down into
# version and release.  Default to "0" if there isn't a release.
v=(${2/-/ })
version=${v[0]}
release="${v[1]:-0}${PKG_RELEASE:+.$PKG_RELEASE}"

cd $xenroot

# Prepare the directory to package
cd dist
rm -rf rpm

# Fill in the rpm boilerplate
mkdir -p rpm/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
cat >rpm/SPECS/xen.spec <<EOF
Summary: Xen development build, version $version
Name: xen$PKG_SUFFIX
Version: $version
Release: $release
License: GPL
Group:   System/Hypervisor
URL: http://xenbits.xenproject.org/xen.git

BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
%define _binary_payload w1.gzdio
%define __spec_install_post /usr/lib/rpm/brp-compress || :
%define debug_package %{nil}

%description
This package contains the Xen hypervisor and associated tools, built
from a source tree.  It is not a fully packaged and supported Xen, just
the output of a xen "make dist" wrapped in an .rpm to make it easy to
uninstall.

%build

%install
rm -rf \$RPM_BUILD_ROOT
mkdir -p \$RPM_BUILD_ROOT
cd %{_xenroot}
dist/install.sh \$RPM_BUILD_ROOT/

cd \$RPM_BUILD_ROOT

%clean
rm -rf \$RPM_BUILD_ROOT

%files
%defattr(-,root,root,-)
/*

%post
EOF

# Package it up
rpmbuild --define "_xenroot $xenroot" --define "_topdir $PWD/rpm" -bb rpm/SPECS/xen.spec

# Tidy up after ourselves
mv rpm/RPMS/*/*.rpm .
rm -rf rpm