app-misc/piper: add ebuild

app-misc/piper/Manifest

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+DIST piper-0.5.1.tar.gz 234944 BLAKE2B 1df33ca6e2d0dae95b34f8e3a98c6829a8f113ae68fb60980ff40374090b9272f86d69103c33fe0a4e1b0ac21a84724e7cabccca4ce8dd23d02f6d56e67d072b SHA512 13368521a9c32b2dc3300b129ed3bb07a6204623fa750f8f75ca31d2a3b60f43ae5f5066ef755814960d4890a489bdfd21b0e1b8f456b3445e0ba35ac06bc877

app-misc/piper/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>silencly07@gmail.com</email>
+    <name>Petrus.Z</name>
+  </maintainer>
+  <upstream>
+    <remote-id type="github">libratbag/piper</remote-id>
+  </upstream>
+</pkgmetadata>

app-misc/piper/piper-0.5.1.ebuild

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+# Copyright 2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_7 )
+
+inherit meson python-single-r1 xdg
+
+DESCRIPTION="GTK application to configure gaming devices"
+HOMEPAGE="https://github.com/libratbag/piper"
+SRC_URI="https://github.com/libratbag/piper/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE=""
+
+DEPEND="
+	${PYTHON_DEPS}
+	dev-libs/libratbag
+	$(python_gen_cond_dep '
+		dev-python/lxml[${PYTHON_MULTI_USEDEP}]
+		dev-python/pycairo[${PYTHON_MULTI_USEDEP}]
+		dev-python/pygobject:3[${PYTHON_MULTI_USEDEP}]
+		dev-python/python-evdev[${PYTHON_MULTI_USEDEP}]'
+	)
+	dev-libs/libevdev
+	virtual/libudev
+"
+RDEPEND="
+	${DEPEND}
+"
+BDEPEND="
+	${PYTHON_DEPS}
+	virtual/pkgconfig
+"
+
+src_configure() {
+	python_setup
+	meson_src_configure
+}
+
+src_install() {
+	meson_src_install
+	python_optimize
+	python_fix_shebang "${ED}"/usr/bin/
+}