sys-fs/udev-init-scripts: Add from Gentoo

It's from Gentoo commit 1367a1498225bc2636c875c8b3c3e7a66d82c000.

sdk_container/src/third_party/coreos-overlay/sys-fs/udev-init-scripts/Manifest

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+DIST udev-init-scripts-35.tar.gz 3666 BLAKE2B fddae466428605ea930519e8a47e0ea91f89f9eacc1fd97c137d175142125b12c3d045aec68db35a463de444ac6d8c037cca55f9628f10576c968259d566a9e4 SHA512 da9d2093149967e2e1b9bc7190ddfd55a87c9ae2177e3216f7cb2694fc9b64037eb6f2599ad8a4b7594ef32ced88fbb319c92904bc72a81ea5404945f8a8378a

sdk_container/src/third_party/coreos-overlay/sys-fs/udev-init-scripts/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>systemd@gentoo.org</email>
+	</maintainer>
+</pkgmetadata>

sdk_container/src/third_party/coreos-overlay/sys-fs/udev-init-scripts/udev-init-scripts-35.ebuild

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+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+OLD_PN=udev-gentoo-scripts
+OLD_P=${OLD_PN}-${PV}
+
+if [ "${PV}" = "9999" ]; then
+	EGIT_REPO_URI="https://anongit.gentoo.org/proj/${OLD_PN}.git"
+	inherit git-r3
+else
+	SRC_URI="https://gitweb.gentoo.org/proj/${OLD_PN}.git/snapshot/${OLD_P}.tar.gz -> ${P}.tar.gz"
+	S="${WORKDIR}/${OLD_P}"
+	KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86"
+fi
+
+DESCRIPTION="udev startup scripts for openrc"
+HOMEPAGE="https://wiki.gentoo.org/wiki/No_homepage"
+
+LICENSE="GPL-2"
+SLOT="0"
+
+RESTRICT="test"
+
+RDEPEND=">=virtual/udev-217
+	!<sys-apps/openrc-0.14"
+
+src_install() {
+	local -x SYSCONFDIR="${EPREFIX}/etc"
+	default
+}
+
+pkg_postinst() {
+	# Add udev and udev-trigger to the sysinit runlevel automatically.
+	for f in udev udev-trigger; do
+		if [[ -x "${EROOT}/etc/init.d/${f}" &&
+			-d "${EROOT}/etc/runlevels/sysinit" &&
+			! -L "${EROOT}/etc/runlevels/sysinit/${f}" ]]; then
+			ln -snf "${EPREFIX}/etc/init.d/${f}" "${EROOT}/etc/runlevels/sysinit/${f}"
+			ewarn "Adding ${f} to the sysinit runlevel"
+		fi
+	done
+
+	if ! has_version "sys-fs/eudev[rule-generator]" && \
+	[[ -x $(type -P rc-update) ]] && rc-update show | grep udev-postmount | grep -qs 'boot\|default\|sysinit'; then
+		ewarn "The udev-postmount service has been removed because the reasons for"
+		ewarn "its existance have been removed upstream."
+		ewarn "Please remove it from your runlevels."
+	fi
+}

sdk_container/src/third_party/coreos-overlay/sys-fs/udev-init-scripts/udev-init-scripts-9999.ebuild

@@ -0,0 +1,50 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+OLD_PN=udev-gentoo-scripts
+OLD_P=${OLD_PN}-${PV}
+
+if [ "${PV}" = "9999" ]; then
+	EGIT_REPO_URI="https://anongit.gentoo.org/proj/${OLD_PN}.git"
+	inherit git-r3
+else
+	SRC_URI="https://gitweb.gentoo.org/proj/${OLD_PN}.git/snapshot/${OLD_P}.tar.gz -> ${P}.tar.gz"
+	S="${WORKDIR}/${OLD_P}"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+fi
+
+DESCRIPTION="udev startup scripts for openrc"
+HOMEPAGE="https://wiki.gentoo.org/wiki/No_homepage"
+
+LICENSE="GPL-2"
+SLOT="0"
+
+RESTRICT="test"
+
+RDEPEND=">=virtual/udev-217
+	!<sys-apps/openrc-0.14"
+
+src_install() {
+	local -x SYSCONFDIR="${EPREFIX}/etc"
+	default
+}
+
+pkg_postinst() {
+	# Add udev and udev-trigger to the sysinit runlevel automatically.
+	for f in udev udev-trigger; do
+		if [[ -x "${EROOT}/etc/init.d/${f}" &&
+			-d "${EROOT}/etc/runlevels/sysinit" &&
+			! -L "${EROOT}/etc/runlevels/sysinit/${f}" ]]; then
+			ln -snf "${EPREFIX}/etc/init.d/${f}" "${EROOT}/etc/runlevels/sysinit/${f}"
+			ewarn "Adding ${f} to the sysinit runlevel"
+		fi
+	done
+
+	if ! has_version "sys-fs/eudev[rule-generator]" && \
+	[[ -x $(type -P rc-update) ]] && rc-update show | grep udev-postmount | grep -qs 'boot\|default\|sysinit'; then
+		ewarn "The udev-postmount service has been removed because the reasons for"
+		ewarn "its existance have been removed upstream."
+		ewarn "Please remove it from your runlevels."
+	fi
+}