#!/bin/bash

set -e

version=`grep Version: *spec | sed -e 's/Version:\s*\(.*\)/\1/'`

wget https://github.com/java-native-access/jna/archive/${version}.tar.gz -O jna-${version}.tar.gz

rm -rf jna-${version}

tar xf jna-${version}.tar.gz

#mv twall-jna-* jna-${version}

# remove bundled things with unknown licensing

rm -rvf jna-${version}/{dist/*,www,native/libffi}

# jars in lib/native subdir need to be present in tarball so

# that final jar can be built. They can be empty and then have no

# effect on resulting jar. One jar (depending on architecture) will

# be replaced with full content (containing libjnidispatch.so)

for njar in jna-${version}/lib/native/*.jar; do

    rm -v $njar

    touch empty

    jar cf $njar empty

    rm -f empty

done

find jna-${version} -iname '*jar' -size +1b -delete

find jna-${version} -name '*.class' -delete

tar cf jna-${version}-clean.tar jna-${version}

xz -9 jna-${version}-clean.tar