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

redo-ifchange "$dir/${package}_$arch.deb"
rm -f "$dir/${package}"_*_"$arch.deb"
ln -sf "${package}_$arch.deb" "$dir/${package}_${version}_$arch.deb"