# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7
inherit java-pkg-2

GRADLE_DEP_VER="20210624"

DESCRIPTION="A software reverse engineering framework"
HOMEPAGE="https://ghidra-sre.org/"
SRC_URI="https://github.com/NationalSecurityAgency/${PN}/archive/Ghidra_${PV}_build.tar.gz
	https://github.com/pxb1988/dex2jar/releases/download/2.0/dex-tools-2.0.zip
	https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/android4me/AXMLPrinter2.jar
	https://sourceforge.net/projects/catacombae/files/HFSExplorer/0.21/hfsexplorer-0_21-bin.zip
	mirror://sourceforge/yajsw/yajsw/yajsw-stable-12.12.zip
	https://www.eclipse.org/downloads/download.php?r=1&protocol=https&file=/tools/cdt/releases/8.6/cdt-8.6.0.zip
	mirror://sourceforge/project/pydev/pydev/PyDev%206.3.1/PyDev%206.3.1.zip -> PyDev-6.3.1.zip
	https://dev.pentoo.ch/~blshkv/distfiles/${PN}-dependencies-${GRADLE_DEP_VER}.tar.gz"
# run: "pentoo/scripts/gradle_dependencies.py buildGhidra" from "${S}" directory to generate dependencies

LICENSE="Apache-2.0"
SLOT="0"
KEYWORDS="amd64"
IUSE=""

#java-pkg-2 sets java based on RDEPEND so the java slot in rdepend is used to build
RDEPEND="virtual/jre:11"
DEPEND="${RDEPEND}
	virtual/jdk:11
	dev-java/gradle-bin:*
	sys-devel/bison
	dev-java/jflex
	app-arch/unzip"

S="${WORKDIR}/ghidra-Ghidra_${PV}_build"

src_unpack() {
	# https://github.com/NationalSecurityAgency/ghidra/blob/master/DevGuide.md
	unpack ${A}
	mkdir -p "${S}/.gradle/flatRepo" || die "(1) mkdir failed"
	cd "${S}/.gradle"

	unpack dex-tools-2.0.zip
	cp dex2jar-2.0/lib/dex-*.jar ./flatRepo || die "(3) cp failed"

	cp "${DISTDIR}/AXMLPrinter2.jar" ./flatRepo  || die "(4) cp failed"

	unpack hfsexplorer-0_21-bin.zip
	cp lib/*.jar ./flatRepo            || die "(5) cp failed"

	mkdir -p "${WORKDIR}"/ghidra.bin/Ghidra/Features/GhidraServer/ || die "(6) mkdir failed"
	cp "${DISTDIR}"/yajsw-stable-12.12.zip "${WORKDIR}"/ghidra.bin/Ghidra/Features/GhidraServer/ || die "(7) cp failed"

	mkdir -p "${WORKDIR}"/ghidra.bin/GhidraBuild/EclipsePlugins/GhidraDev/buildDependencies/ || die "(8) mkdir failed"
	cp "${DISTDIR}"/PyDev-6.3.1.zip "${WORKDIR}/ghidra.bin/GhidraBuild/EclipsePlugins/GhidraDev/buildDependencies/PyDev 6.3.1.zip" || die "(9) cp failed"
	cp "${DISTDIR}"/cdt-8.6.0.zip "${WORKDIR}"/ghidra.bin/GhidraBuild/EclipsePlugins/GhidraDev/buildDependencies/ || die "(10) cp failed"

	cd "${S}"
	mv ../dependencies .
}

src_prepare() {
	mkdir -p ".gradle/init.d"                       || die "(10) mkdir failed"
	cp "${FILESDIR}"/repos.gradle .gradle/init.d    || die "(11) cp failed"
	sed -i "s|S_DIR|${S}|g" .gradle/init.d/repos.gradle || die "(12) sed failed"
	#remove build date so we can unpack dist.zip later
	sed -i "s|_\${rootProject.BUILD_DATE_SHORT}||g" gradle/root/distribution.gradle || die "(13) sed failed"

	#10.0 workaround
	ln -s ../.gradle/flatRepo ./dependencies/flatRepo

	eapply_user
}

src_compile() {
	export _JAVA_OPTIONS="$_JAVA_OPTIONS -Duser.home=$HOME -Djava.io.tmpdir=${T}"

	GRADLE="gradle --gradle-user-home .gradle --console rich --no-daemon"
	GRADLE="${GRADLE} --offline"

	unset TERM
	${GRADLE} prepDev -x check -x test || die
	${GRADLE} buildGhidra -x check -x test --parallel || die
#build without eclipse plugin
#	${GRADLE} yajswDevUnpack -x check -x test || die
#	${GRADLE} buildNatives_linux64 -x check -x test || die
#	${GRADLE} sleighCompile -x check -x test || die
}

src_install() {
	#FIXME: it is easier to unpack existing archive for now
	dodir /usr/share
	unzip build/dist/ghidra_"${PV}"_DEV_linux64.zip -d "${ED}"/usr/share/ || die "unable to unpack dist zip"
	mv "${ED}"/usr/share/ghidra_"${PV}"_DEV "${ED}"/usr/share/ghidra || die "mv failed"

	#fixme: add doc flag
	rm -r  "${ED}"/usr/share/ghidra/docs/ || die "rm failed"
	dosym "${EPREFIX}"/usr/share/ghidra/ghidraRun /usr/bin/ghidra
}