Add packages

app-misc/brightnessctl/brightnessctl-9999.ebuild

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+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit git-r3
+
+DESCRIPTION="This program allows you read and control device brightness."
+HOMEPAGE="https://github.com/Hummer12007/brightnessctl"
+SRC_URI=""
+EGIT_REPO_URI="https://github.com/Hummer12007/brightnessctl"
+
+if [[ ${PV} = 9999 ]] ; then
+	EGIT_COMMIT=""
+else
+	EGIT_COMMIT="${PV}"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="systemd udev"
+
+DEPEND="
+systemd? ( sys-apps/systemd:= )
+udev? ( virtual/udev )
+"
+RDEPEND="${DEPEND}"
+BDEPEND=""
+
+src_install() {
+	local myconf
+	if use systemd && use udev ; then
+		myconf="${myconf} ENABLE_SYSTEMD=1 INSTALL_UDEV_RULES=0"
+		einfo "Both systemd and udev are specified, defaulting to systemd only"
+	elif use udev && ! use systemd; then
+		myconf="${myconf} ENABLE_SYSTEMD=0 INSTALL_UDEV_RULES=1"
+	elif ! use udev ; then
+		myconf="${myconf} INSTALL_UDEV_RULES=0"
+	fi
+
+	emake install ${myconf} DESTDIR="${D}"
+}