#!/bin/sh

# Assumed directory layout:
# this script sits in the top-level directory. Under which there's
# a subdirectory for each package. There is also the special
# adminitrative subdirectory rpmbuild

set -e

# Make sure we have the necessary tools.
if [ ! -x /usr/bin/mock ]; then
    echo "mock not found; you need to install the mock package" >&2
    exit 1
fi

#my_dir=`dirname $0`
#top_dir="$my_dir/.."
top_dir=".."
build_dir="$top_dir/rpmbuild"
specs_dir="$build_dir/SPECS"
sources_dir="$build_dir/SOURCES"
srpms_dir="$build_dir/SRPMS"
rpms_pat="results/%(dist)s/%(target_arch)s/"

releases="cpbx-45-x86_64 cpbx-45-i386"

usage() {
	me=`basename $0`
	echo \
"Usage:
	$me <export|build|clean>
	$me import path/to/srpm

	export: export a source RPM package from git tree
	build: build latest source RPM using mock
	import: create/update a git repository from source RPM
	clean: delete all produced RPM packages under $build_dir
"
}

# There must be a saner way to do that or a reason why this is not required
fix_arch() {
	ARCH=${ARCH:-`uname -m`}
	case "$ARCH" in
	amd64) ARCH='x86_64';;
	esac
}

while [ $# != 0 ]; do
	case "$1" in
	--define) shift ;;
	*.spec) SPEC="$1"
	esac
	shift
done

create_srpm() {
	spec=`ls -t $specs_dir/*.spec | head -n1`

	mkdir -p "$srpms_dir"
	rpmbuild -bs \
		--define "_sourcedir $sources_dir" \
		--define "_srcrpmdir $srpms_dir" \
		"$spec"
}

# Mock wrapper: used internally
git_builder() {
	local spec="$SPEC"
	local root=${GIT_MOCK_ROOT:-${DIST}-${ARCH}}
	if [ ! -d "$GIT_MOCK_EXPORT_DIR" ]; then
		echo >&2 "$0: Missing outputs directory (GIT_MOCK_EXPORT_DIR). Aborting."
		exit 1
	fi
	#local export_dir="$GIT_MOCK_EXPORT_DIR"
	export_dir="$PWD"
	spec="$export_dir/SPECS/$spec"
	sources="$export_dir/SOURCES"
	srpms="$export_dir/SRPMS"
	pat="${GIT_MOCK_RESULTS_PAT-results/%(dist)s/%(target_arch)s/}"
	local resultdir="$export_dir/$pat"
	local mock="mock -r $root --resultdir=$srpms --spec=$spec --sources=$sources"
	set -e
	
	$mock --buildsrpm
	#rpmbuild -bs --define "_topdir ." "SPECS/$spec"
	# Assuming that nothing was built in this directory since the previous command:
	local srpm=`ls -t $PWD/SRPMS/*.src.rpm | head -n1`
	$mock --no-cleanup-after --resultdir $resultdir --rebuild "$srpm"
	#for rel in $releases; do
	#	mock -r $rel --resultdir="$PWD/$rpms_pat" \
	#		--no-cleanup-after \
	#		--rebuild "$srpm"
	#done
}


fix_arch

git_builder