net-im/nheko: Add live package.

net-im/nheko/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>gentoo@tastytea.de</email>
+		<name>Ronny (tastytea) Gutbrod</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">Nheko-Reborn/nheko</remote-id>
+	</upstream>
+	<use>
+		<flag name="pipewire">Pull in dependencies for media-video/pipewire support</flag>
+		<flag name="video">Enables video calls</flag>
+		<flag name="voip">Enables audio calls</flag>
+	</use>
+</pkgmetadata>

net-im/nheko/nheko-9999.ebuild

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+# Copyright 2020-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake git-r3 optfeature xdg
+
+DESCRIPTION="Native desktop client for Matrix using Qt"
+HOMEPAGE="https://github.com/Nheko-Reborn/nheko"
+EGIT_REPO_URI=(
+	"https://github.com/Nheko-Reborn/nheko.git"
+	"https://github.com/Nheko-Reborn/mtxclient.git"
+	"https://nheko.im/nheko-reborn/coeurl.git"
+)
+
+LICENSE="GPL-3 MIT"
+SLOT="0"
+KEYWORDS=""
+IUSE="X pipewire video voip"
+REQUIRED_USE="video? ( voip )"
+
+MY_GST_V="1.18"
+RDEPEND="
+	app-text/cmark
+	dev-cpp/qt-jdenticon
+	>=dev-db/lmdb++-1.0.0
+	>=dev-libs/qtkeychain-0.12.0
+	dev-libs/spdlog
+	dev-qt/qtconcurrent:5
+	dev-qt/qtgraphicaleffects:5
+	dev-qt/qtgui:5[gif,jpeg,png]
+	dev-qt/qtimageformats
+	dev-qt/qtmultimedia:5[gstreamer,qml]
+	dev-qt/qtquickcontrols2:5
+	dev-qt/qtsvg:5
+	pipewire? ( media-video/pipewire[gstreamer] )
+	voip? (
+		>=media-plugins/gst-plugins-dtls-${MY_GST_V}
+		media-plugins/gst-plugins-libnice
+		>=media-plugins/gst-plugins-meta-${MY_GST_V}[opus]
+		>=media-plugins/gst-plugins-srtp-${MY_GST_V}
+		>=media-plugins/gst-plugins-webrtc-${MY_GST_V}
+		video? (
+			>=media-libs/gst-plugins-base-${MY_GST_V}[opengl]
+			>=media-plugins/gst-plugins-meta-${MY_GST_V}[v4l,vpx]
+			>=media-plugins/gst-plugins-qt5-${MY_GST_V}
+			X? (
+				>=media-plugins/gst-plugins-ximagesrc-${MY_GST_V}
+				x11-libs/xcb-util-wm
+			)
+		)
+	)
+"
+DEPEND="
+	dev-cpp/nlohmann_json
+	${RDEPEND}
+"
+BDEPEND="dev-qt/linguist-tools:5"
+
+src_unpack() {
+	for repo_uri in ${EGIT_REPO_URI[@]}; do
+		git-r3_fetch ${repo_uri}
+		git-r3_checkout ${repo_uri} "${WORKDIR}/${repo_uri##*/}"
+	done
+	mv nheko.git ${P}
+}
+
+src_prepare() {
+	# Don't try to download mtxclient and coeurl.
+	sed -Ei '/GIT_(REPOSITORY|TAG)/d' CMakeLists.txt || die
+	sed -Ei '/GIT_(REPOSITORY|TAG)/d' ../mtxclient.git/CMakeLists.txt || die
+
+	cmake_src_prepare
+}
+
+src_configure() {
+	mkdir -p "${WORKDIR}/${P}_build/_deps" || die
+	mv ../mtxclient.git "${WORKDIR}/${P}_build/_deps/matrixclient-src" || die
+	mv ../coeurl.git "${WORKDIR}/${P}_build/_deps/coeurl-src" || die
+
+	local -a mycmakeargs=(
+		"-DUSE_BUNDLED_MTXCLIENT=ON"
+		"-DUSE_BUNDLED_COEURL=ON"
+		"-DBUILD_SHARED_LIBS=OFF"
+		"-DVOIP=$(usex voip)"
+	)
+	if use video && use X; then
+		mycmakeargs+=("-DSCREENSHARE_X11=yes")
+	else
+		mycmakeargs+=("-DSCREENSHARE_X11=no")
+	fi
+
+	cmake_src_configure
+}
+
+pkg_preinst() {
+	einfo "This ebuild bundles mtxclient and coeurl."
+	einfo "Oh, and also this is a bit hacky. :-)"
+}
+
+src_install() {
+	cmake_src_install
+
+	# Remove stuff from bundled libs.
+	rm -r "${D}/usr/lib64" || die
+	rm -r "${D}/usr/include" || die
+}
+
+pkg_postinst() {
+	optfeature "audio & video file playback support" \
+			   "media-plugins/gst-plugins-meta[ffmpeg]"
+	optfeature "secrets storage support other than kwallet (gnome-keyring or keepassxc)" \
+			   "dev-libs/qtkeychain[gnome-keyring]"
+
+	xdg_pkg_postinst
+}