1 files changed, 95 insertions, 0 deletions
diff --git a/sys-fs/udev/files/164/udev-dev-tarball.initd b/sys-fs/udev/files/164/udev-dev-tarball.initd
new file mode 100644
index 000000000000..7d5a6b7cec41
--- /dev/null
+++ b/sys-fs/udev/files/164/udev-dev-tarball.initd
@@ -0,0 +1,95 @@
+#!/sbin/runscript
+# Copyright 1999-2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+description="Maintain a tarball of not udev managed device nodes"
+[ -e /etc/conf.d/udev ] && . /etc/conf.d/udev
+
+rc_device_tarball=${rc_device_tarball:-${RC_DEVICE_TARBALL:-NO}}
+device_tarball=/lib/udev/state/devices.tar.bz2
+
+depend() {
+	if [ -f /etc/init.d/sysfs ]; then
+		need udev-mount
+	fi
+}
+
+start()
+{
+	_start
+}
+
+_start() {
+	if yesno "${rc_device_tarball}" && \
+		[ -s "${device_tarball}" ]
+	then
+		ebegin "Populating /dev with saved device nodes"
+		tar -jxpf "${device_tarball}" -C /dev
+		eend $?
+	fi
+}
+
+stop() {
+	if [ -e /dev/.devfsd ] || [ ! -e /dev/.udev ] || [ ! -z "${CDBOOT}" ] || \
+		! yesno "${rc_device_tarball}" || \
+		! touch "${device_tarball}" 2>/dev/null
+	then
+		return 0
+	fi
+
+	ebegin "Saving device nodes"
+	# Handle our temp files
+	save_tmp_base=/tmp/udev.savedevices."$$"
+	devices_udev="${save_tmp_base}"/devices.udev
+	devices_real="${save_tmp_base}"/devices.real
+	devices_totar="${save_tmp_base}"/devices.totar
+	device_tmp_tarball="${save_tmp_base}"/devices
+
+	rm -rf "${save_tmp_base}"
+	mkdir "${save_tmp_base}"
+	touch "${devices_udev}" "${devices_real}" \
+		"${devices_totar}" "${device_tmp_tarball}"
+
+	if [ -f "${devices_udev}" -a -f "${devices_real}" -a \
+		-f "${devices_totar}" -a -f "${device_tmp_tarball}" ]
+	then
+		cd /dev
+		# Find all devices, but ignore .udev directory
+		find . -xdev -type b -or -type c -or -type l | \
+		cut -d/ -f2- | \
+		grep -v ^\\.udev >"${devices_real}"
+
+		# Figure out what udev created
+		udevadm info --export-db | sed -ne 's,^[SN]: \(.*\),\1,p' >"${devices_udev}"
+		# These ones we also do not want in there
+		for x in MAKEDEV core fd initctl pts shm stderr stdin stdout root; do
+			echo "${x}" >> "${devices_udev}"
+		done
+		if [ -d /lib/udev/devices ]; then
+			cd /lib/udev/devices
+			find . -xdev -type b -or -type c -or -type l | \
+			cut -d/ -f2- >> "${devices_udev}"
+			cd /dev
+		fi
+
+		fgrep -x -v -f "${devices_udev}" "${devices_real}" > "${devices_totar}"
+
+		# Now only tarball those not created by udev if we have any
+		if [ -s "${devices_totar}" ]; then
+			# we dont want to descend into mounted filesystems (e.g. devpts)
+			# looking up username may involve NIS/network
+			# and net may be down
+			tar --one-file-system --numeric-owner \
+				-jcpf "${device_tmp_tarball}" -T "${devices_totar}"
+			mv -f "${device_tmp_tarball}" "${device_tarball}"
+		else
+			rm -f "${device_tarball}"
+		fi
+		eend 0
+	else
+		eend 1 "Could not create temporary files!"
+	fi
+
+	rm -rf "${save_tmp_base}"
+}
+