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# Copyright 2008-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

JAVA_PKG_IUSE="doc source test"
MAVEN_ID="com.google.protobuf:protobuf-java:3.21.8"
# Tests not enabled, depend on com.google.truth which is not packaged
# https://github.com/protocolbuffers/protobuf/blob/v3.21.6/java/core/pom.xml#L35-L39"
# JAVA_TESTING_FRAMEWORKS="junit-4"

inherit java-pkg-2 java-pkg-simple

DESCRIPTION="Google's Protocol Buffers - Java bindings"
HOMEPAGE="https://developers.google.com/protocol-buffers/"
SRC_URI="https://github.com/protocolbuffers/protobuf/archive/v${PV}.tar.gz -> protobuf-${PV}.tar.gz"

LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86 ~amd64-linux ~x86-linux ~x64-macos"

DEPEND="
	>=virtual/jdk-1.8:*
	test? (
		dev-java/guava:0
		dev-java/mockito:4
		)
"
RDEPEND=">=virtual/jre-1.8:*"

BDEPEND="dev-libs/protobuf:0"

S="${WORKDIR}/protobuf-${PV}/java"

JAVA_AUTOMATIC_MODULE_NAME="com.google.protobuf"
JAVA_JAR_FILENAME="protobuf.jar"
JAVA_RESOURCE_DIRS="core/src/main/resources"
JAVA_SRC_DIR="core/src/main/java"

JAVA_TEST_GENTOO_CLASSPATH="guava,junit-4,mockito-4"
JAVA_TEST_RESOURCE_DIRS="../src"
JAVA_TEST_SRC_DIR="core/src/test/java"

src_prepare() {
	default
	java-pkg-2_src_prepare
	# Copy resources from ../src/google/protobuf according to
	# https://github.com/protocolbuffers/protobuf/blob/v3.21.6/java/core/pom.xml#L45-L61
	mkdir -p core/src/main/resources/google/protobuf/compiler || die
	cp {../src,core/src/main/resources}/google/protobuf/compiler/plugin.proto || die
	cp ../src/google/protobuf/{any,api,descriptor,duration,empty,field_mask,source_context,struct,timestamp,type,wrappers}.proto \
		"${JAVA_RESOURCE_DIRS}/google/protobuf" || die

	# Generate 146 .java files according to
	# https://github.com/protocolbuffers/protobuf/blob/v3.21.6/java/core/generate-sources-build.xml
	for proto in any api compiler/plugin descriptor duration empty field_mask source_context struct timestamp type wrappers; do
		"${BROOT}/usr/bin/protoc" \
			--java_out=core/src/main/java -I../src ../src/google/protobuf/$proto.proto || die
	done
}