exec >&2
dir=${1%/*}
redo-ifchange "$S/oss/version/short.txt" "$S/$dir/package" "$dir/debtmp.dir"
read -r package <"$S/$dir/package"
read -r version <"$S/oss/version/short.txt"
arch=$(dpkg --print-architecture)

(
	cd "$S/$dir"
	git ls-files debian | xargs redo-ifchange debian/changelog
)
cp -a "$S/$dir/debian" "$dir/debtmp/"
rm -f "$dir/debtmp/debian/$package.debhelper.log"
(
	cd "$dir/debtmp" &&
	debian/rules build &&
	fakeroot debian/rules binary
)

mv "$dir/${package}_${version}_${arch}.deb" "$3"