%global upstream_version 1.5.2-3
%global short_version %(echo %{upstream_version} | sed 's/-.*//')

# shared library is an internal file
%global         __provides_exclude_from \\.so$

Name:           zstd-jni
Version:        %(echo %{upstream_version} | tr - .)
Release:        1%{?dist}
Summary:        JNI bindings for Zstd native library
# files in the cleaned tarball are under BSD 2-clause
# files included from zstd are dual-licensed under (BSD 3-clause or GPLv2)
License:        (BSD or GPLv2) and BSD

URL:            https://github.com/luben/zstd-jni

# ./generate-tarball.sh
Source0:        %{name}-%{version}.tar.gz
Source1:        https://repo1.maven.org/maven2/com/github/luben/zstd-jni/%{upstream_version}/zstd-jni-%{upstream_version}.pom
Source2:        zstd-%{short_version}.tar.gz

Patch1:         0001-Load-native-library-from-predefined-path.patch

BuildRequires:  gcc
BuildRequires:  libzstd-devel

# Reason for bundling zstd:
# zstd-jni depends on internal headers of the zstd project which are not
# provided by zstd-devel package
Provides:       bundled(zstd) = %{short_version}

%description
JNI bindings for Zstd native library that provides fast and high compression
lossless algorithm for Android, Java and all JVM languages. It features:
* static compress/decompress methods
* implementation of InputStream and OutputStream for transparent compression of
  data streams fully compatible with the "zstd" program.
* minimal performance overhead

%package java
License:        BSD
BuildArch:      noarch
BuildRequires:  maven-local
Requires:       zstd-jni = %{version}-%{release}
ExclusiveArch:  %{java_arches} noarch
Summary: Java library for %{name}

%description java
Java library for %{name}.

%package javadoc
License:        BSD
BuildArch:      noarch
Summary: Javadoc for %{name}

%description javadoc
Javadoc for %{name}.

%prep
%setup -q -n zstd-jni-%{upstream_version}
%patch1 -p1

cp -p %{SOURCE1} pom.xml

%pom_remove_dep :scalatest_2.13
%pom_remove_dep :scalacheck_2.13

# special file containing the version
cat > src/main/java/com/github/luben/zstd/util/ZstdVersion.java << EOF
package com.github.luben.zstd.util;

public class ZstdVersion {
    public static final String VERSION = "%{upstream_version}";
}
EOF

tar -xf %{SOURCE2}

# included zstd license files
mv zstd-%{short_version}/LICENSE LICENSE-zstd
mv zstd-%{short_version}/COPYING COPYING-zstd

%mvn_file : %{name}

%build
# JNI headers
CPATH+=:%{_jvmdir}/java/include:%{_jvmdir}/java/include/linux

# bundled libzstd headers
CPATH+=:zstd-%{short_version}/lib/common

export CPATH

%{build_cc} -o libzstd-jni-%{upstream_version}.so -fPIC -shared -lzstd %{build_cflags} %{build_ldflags} src/main/native/*.c

# Tests require scala and a package scalatest, which we do not have

%mvn_build

%install
install -D -m 755 -t %{buildroot}%{_prefix}/lib/zstd-jni libzstd-jni-%{upstream_version}.so
%mvn_install

%files
%{_prefix}/lib/zstd-jni/libzstd-jni-%{upstream_version}.so
%license LICENSE LICENSE-zstd COPYING-zstd
%doc README.md

%files java -f .mfiles
%license LICENSE
%doc README.md

%files javadoc -f .mfiles-javadoc
%license LICENSE

%changelog
* Mon May 16 2022 Marian Koncek <mkoncek@redhat.com> - 1.5.2.3-1
- Initial release