games-emulation/citra: new package

Signed-off-by: Samuel Bauer <samuel.bauer@yahoo.fr>

games-emulation/citra/citra-9999.ebuild

@@ -0,0 +1,137 @@
+# Copyright 2020-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake git-r3 xdg
+
+DESCRIPTION="A Nintendo 3DS Emulator"
+HOMEPAGE="https://citra-emu.org"
+EGIT_REPO_URI="https://github.com/citra-emu/citra"
+EGIT_SUBMODULES=( "*" "-boost" "-catch" "-cryptopp" "-enet" "-inih" "-libressl" "-externals/dynarmic/externals/xbyak" "-zstd" )
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS=""
+IUSE="cubeb +hle-sound nls +qt5 sdl system-libfmt +telemetry video"
+
+DEPEND="
+	!hle-sound? ( media-libs/fdk-aac )
+	hle-sound? ( media-video/ffmpeg[fdk] )
+	qt5? ( nls? ( dev-qt/linguist )
+			dev-qt/qtgui
+			dev-qt/qtmultimedia
+			dev-qt/qtnetwork
+			dev-qt/qtopengl
+			dev-qt/qtwidgets )
+	sdl? (
+		media-libs/libsdl2
+		>=dev-libs/inih-52
+	)
+	system-libfmt? ( <=dev-libs/libfmt-8 )
+	video? ( media-video/ffmpeg )
+	>=app-arch/zstd-1.4.8
+	>=dev-libs/openssl-1.1
+	dev-cpp/catch:0
+	dev-libs/boost:=
+	dev-libs/crypto++
+	net-libs/enet:1.3
+"
+RDEPEND="${DEPEND}"
+REQUIRED_USE="|| ( qt5 sdl )"
+
+src_unpack() {
+	if use system-libfmt; then
+		EGIT_SUBMODULES+=( "-fmt" "-externals/dynarmic/externals/fmt" )
+	fi
+	git-r3_src_unpack
+
+	cp -a "${S}"/externals/xbyak "${S}"/externals/dynarmic/externals/ || die
+
+	# Do not fetch via sources because this file always changes
+	curl https://api.citra-emu.org/gamedb/ > "${S}"/compatibility_list.json
+}
+
+src_prepare() {
+	# Do not care about submodules wanted one are already fetched
+	sed -i -e '/check_submodules_present()/d' CMakeLists.txt || die
+
+	# Unbundle inih
+	sed -i -e '/inih/d' externals/CMakeLists.txt || die
+	sed -i -e '1ifind_package(PkgConfig REQUIRED)\npkg_check_modules(INIH REQUIRED INIReader)' \
+		-e '/target_link_libraries/s/inih/${INIH_LIBRARIES}/' src/citra/CMakeLists.txt || die
+	sed -i -e 's:inih/cpp/::' src/citra/config.cpp || die
+
+	# Fix boost unbundling
+	sed -i -e '/(-DBOOST_ERROR_CODE_HEADER_ONLY/,/)/d' CMakeLists.txt || die
+	sed -i -e '/[Bb][Oo][Oo][Ss][Tt]/d' externals/CMakeLists.txt || die
+
+	# Unbundle libressl (TODO rework scopes, find_package(OpenSSL is called 5 times)
+	sed -i -e '$afind_package(OpenSSL 1.1)\nset(OPENSSL_LIBRARIES OpenSSL::SSL OpenSSL::Crypto PARENT_SCOPE)' \
+		CMakeLists.txt || die
+	sed -i -e 's/# LibreSSL/find_package(OpenSSL 1.1)\nif (NOT OPENSSL_FOUND)\n/' \
+		-e 's/-DHAVE_INET_NTOP)$/&\nendif()\n/' externals/CMakeLists.txt || die
+	sed -i -e '/get_directory_property(OPENSSL_LIBS/,/)/d' \
+		-e 's/OPENSSL_LIBS/OPENSSL_LIBRARIES/' \
+		src/web_service/CMakeLists.txt \
+		src/core/CMakeLists.txt || die
+	sed -i -e 's/{PLATFORM_LIBRARIES}/& OpenSSL::SSL OpenSSL::Crypto/' \
+		src/{citra,citra_qt,dedicated_room,tests}/CMakeLists.txt || die
+	sed -i -e '1ifind_package(OpenSSL 1.1)' src/{citra,citra_qt,dedicated_room,tests}/CMakeLists.txt || die
+
+	if use system-libfmt; then # Unbundle libfmt
+		sed -i -e '/fmt/d' externals/CMakeLists.txt || die
+		sed -i -e 's/fmt/&::&/' -e '1ifind_package(fmt)' \
+			src/{core,citra,citra_qt,dedicated_room,input_common,tests,video_core}/CMakeLists.txt
+		sed -i -e '1ifind_package(fmt)' externals/dynarmic/src/CMakeLists.txt || die
+	fi
+
+	# Unbundle zstd
+	sed -i -e 's:libzstd_static:${ZSTD_LIBRARIES}:' \
+		-e '1ifind_package(PkgConfig REQUIRED)\npkg_check_modules(ZSTD REQUIRED libzstd)' \
+		src/common/CMakeLists.txt || die
+	sed -i -e '/zstd/d' externals/CMakeLists.txt || die
+
+	# Unbundle enet
+	sed -i -e 's:enet:${ENET_LIBRARIES}:' \
+		-e '1ifind_package(PkgConfig REQUIRED)\npkg_check_modules(ENET REQUIRED libenet)' \
+		src/network/CMakeLists.txt || die
+	sed -i -e '/#include.*enet/{s/"/</;s/"/>/}' src/network/*cpp || die
+	sed -i -e '/enet/d' externals/CMakeLists.txt || die
+
+	# Unbundle crypto++
+	sed -i -e 's:cryptopp:${CRYPTOPP_LIBRARIES}:' \
+		-e '1ifind_package(PkgConfig REQUIRED)\npkg_check_modules(CRYPTOPP REQUIRED libcryptopp)' \
+		src/dedicated_room/CMakeLists.txt \
+		src/core/CMakeLists.txt || die
+	sed -i -e '/cryptopp/d' externals/CMakeLists.txt || die
+
+	# TODO unbundle catch
+	sed -i -e '1ifind_package(Catch2)' src/tests/CMakeLists.txt externals/{dynarmic,teakra}/tests/CMakeLists.txt || die
+	sed -i -e '/target_link_libraries/s/catch/Catch2::Catch2/' externals/{dynarmic,teakra}/tests/CMakeLists.txt || die
+	sed -i -e '/target_link_libraries/s/catch-single-include/Catch2::Catch2/' src/tests/CMakeLists.txt || die
+	sed -i -e '/catch/d' externals/CMakeLists.txt externals/{dynarmic,teakra}/externals/CMakeLists.txt || die
+	grep -rl 'include <catch.hpp>' externals/{dynarmic,teakra} | xargs sed -i -e '/include/s:catch.hpp:catch/&:' || die
+
+	# TODO unbundle xbyak (wait for 5.96 in ytree)
+	cmake_src_prepare
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_SHARED_LIBS=OFF
+		-DENABLE_CUBEB=$(usex cubeb)
+		-DENABLE_FFMPEG_AUDIO_DECODER=$(usex hle-sound)
+		-DENABLE_FFMPEG_VIDEO_DUMPER=$(usex hle-sound)
+		-DENABLE_QT=$(usex qt5)
+		-DENABLE_QT_TRANSLATION=$(use qt5 && usex nls || echo OFF)
+		-DENABLE_SDL2=$(usex sdl)
+		-DENABLE_WEB_SERVICE=$(usex telemetry)
+		-DGENERATE_QT_TRANSLATION=$(use qt5 && usex nls || echo OFF)
+		-DUSE_SYSTEM_BOOST=ON
+	)
+	cmake_src_configure
+
+	# This would be better in src_unpack but it would be unlinked
+	mv "${S}"/compatibility_list.json "${BUILD_DIR}"/dist/compatibility_list/ || die
+}

games-emulation/citra/metadata.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+<maintainer type="person">
+	<name>Samuel Bauer</name>
+	<email>samuel.bauer@yahoo.fr</email>
+</maintainer>
+<use>
+	<flag name="cubeb">Enables the cubeb audio backend</flag>
+	<flag name="hle-sound">Enable HLE sound via FFmpeg audio (AAC) decoder</flag>
+	<flag name="system-libfmt">Use system libfmt</flag>
+	<flag name="telemetry">Enable web services (telemetry, etc.)</flag>
+	<flag name="video">Enable FFmpeg video dumper</flag>
+</use>
+</pkgmetadata>