# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-fs/udev/udev-118-r1.ebuild,v 1.1 2008/02/01 14:52:43 zzam Exp $

inherit eutils flag-o-matic multilib toolchain-funcs versionator

DESCRIPTION="Linux dynamic and persistent device naming support (aka userspace devfs)"
HOMEPAGE="http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html"
SRC_URI="mirror://kernel/linux/utils/kernel/hotplug/${P}.tar.bz2"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86"
IUSE="selinux"

DEPEND="selinux? ( sys-libs/libselinux )"
RDEPEND="!sys-apps/coldplug
	!<sys-fs/device-mapper-1.02.19-r1"
RDEPEND="${DEPEND} ${RDEPEND}
	>=sys-apps/baselayout-1.12.5"
# We need the lib/rcscripts/addon support
PROVIDE="virtual/dev-manager"

pkg_setup() {
	udev_helper_dir="/$(get_libdir)/udev"

	myconf=
	extras="extras/ata_id \
			extras/cdrom_id \
			extras/edd_id \
			extras/firmware \
			extras/floppy \
			extras/path_id \
			extras/scsi_id \
			extras/usb_id \
			extras/volume_id \
			extras/collect \
			extras/rule_generator"

	use selinux && myconf="${myconf} USE_SELINUX=true"

	# comparing kernel version without linux-info.eclass to not pull
	# virtual/linux-sources

	local KV=$(uname -r)
	local KV_MAJOR=$(get_major_version ${KV})
	local KV_MINOR=$(get_version_component_range 2 ${KV})
	local KV_MICRO=$(get_version_component_range 3 ${KV})

	local ok=0
	if [[ ${KV_MAJOR} == 2 && ${KV_MINOR} == 6 && ${KV_MICRO} -ge 15 ]]
	then
		ok=1
	fi

	if [[ ${ok} == 0 ]]
	then
		ewarn
		ewarn "${P} does not support Linux kernel before version 2.6.15!"
		ewarn "If you want to use udev you need to update"
		ewarn "to kernel >=2.6.15!"
		ewarn
		ebeep
	fi
}

sed_helper_dir() {
	sed -e "s#/lib/udev#${udev_helper_dir}#" -i "$@"
}

src_unpack() {
	unpack ${A}

	cd "${S}"

	# patches go here...

	# No need to clutter the logs ...
	sed -ie '/^DEBUG/ c\DEBUG = false' Makefile
	# Do not use optimization flags from the package
	sed -ie 's|$(OPTIMIZATION)||g' Makefile
	# Do not require xmlto to refresh manpages
	sed -ie 's|$(MAN_PAGES)||g' Makefile

	# Make sure there is no sudden changes to upstream rules file
	# (more for my own needs than anything else ...)
	MD5=$(md5sum < "${S}/etc/udev/rules.d/50-udev-default.rules")
	MD5=${MD5/  -/}
	if [[ ${MD5} != a71a3459f46eb61b209a73fc0c6a299f ]]
	then
		echo
		eerror "50-udev-default.rules has been updated, please validate!"
		die "50-udev-default.rules has been updated, please validate!"
	fi

	sed_helper_dir \
		etc/udev/rules.d/50-udev-default.rules \
		extras/rule_generator/write_*_rules \
		udev_rules_parse.c \
		udev_rules.c

	# Use correct multilib dir
	sed -i extras/volume_id/lib/Makefile \
		-e "/ =/s-/lib-/$(get_libdir)-"
}

src_compile() {
	filter-flags -fprefetch-loop-arrays

	if [[ -z ${extras} ]]; then
		eerror "Variable extras is unset!"
		eerror "It seems you suffer from Bug #190994"
		die "Variable extras is unset!"
	fi

	# Not everyone has full $CHOST-{ld,ar,etc...} yet
	local mycross=""
	type -p ${CHOST}-ar && mycross=${CHOST}-

	emake \
		EXTRAS="${extras}" \
		libudevdir=${udev_helper_dir} \
		CROSS_COMPILE=${mycross} \
		OPTFLAGS="" \
		${myconf} || die "compiling udev failed"
}

src_install() {
	into /
	emake \
		DESTDIR="${D}" \
		libudevdir=${udev_helper_dir} \
		EXTRAS="${extras}" \
		${myconf} \
		install || die "make install failed"

	exeinto "${udev_helper_dir}"
	newexe "${FILESDIR}"/net-118-r1.sh net.sh	|| die "net.sh not installed properly"
	newexe "${FILESDIR}"/move_tmp_persistent_rules-112-r1.sh move_tmp_persistent_rules.sh \
		|| die "move_tmp_persistent_rules.sh not installed properly"
	doexe "${FILESDIR}"/write_root_link_rule \
		|| die "write_root_link_rule not installed properly"

	keepdir "${udev_helper_dir}"/state
	keepdir "${udev_helper_dir}"/devices

	# create symlinks for these utilities to /sbin
	# where multipath-tools expect them to be (Bug #168588)
	dosym "..${udev_helper_dir}/vol_id" /sbin/vol_id
	dosym "..${udev_helper_dir}/scsi_id" /sbin/scsi_id

	# vol_id library (needed by mount and HAL)
	into /
	rm "${D}/$(get_libdir)"/libvolume_id.so* 2>/dev/null
	dolib extras/volume_id/lib/*.so* || die "Failed installing libvolume_id.so"
	into /usr
	dolib extras/volume_id/lib/*.a || die "Failed installing libvolume_id.a"

	# handle static linking bug #4411
	rm -f "${D}/usr/$(get_libdir)/libvolume_id.so"
	gen_usr_ldscript libvolume_id.so

	# Add gentoo stuff to udev.conf
	cat "${FILESDIR}"/udev.conf.115-r6 >> "${D}"/etc/udev/udev.conf

	# Now installing rules
	cd etc/udev
	insinto /etc/udev/rules.d/

	# Our rules files
	doins gentoo/??-*.rules
	doins packages/40-alsa.rules

	# Adding arch specific rules
	if [[ -f packages/40-${ARCH}.rules ]]
	then
		doins "packages/40-${ARCH}.rules"
	fi
	cd "${S}"

	# our udev hooks into the rc system
	insinto /$(get_libdir)/rcscripts/addons
	newins "${FILESDIR}"/udev-start-118-r1.sh udev-start.sh
	newins "${FILESDIR}"/udev-stop-111-r2.sh udev-stop.sh

	# The udev-post init-script
	newinitd "${FILESDIR}"/udev-postmount-initd-111-r2 udev-postmount

	insinto /etc/modprobe.d
	newins "${FILESDIR}"/blacklist-110 blacklist
	doins "${FILESDIR}"/pnp-aliases

	# convert /lib/udev to real used dir
	sed_helper_dir \
		"${D}/$(get_libdir)"/rcscripts/addons/*.sh \
		"${D}"/etc/init.d/udev* \
		"${D}"/etc/modprobe.d/*

	# documentation
	dodoc ChangeLog FAQ README TODO RELEASE-NOTES
	dodoc docs/{overview,udev_vs_devfs}

	cd docs/writing_udev_rules
	mv index.html writing_udev_rules.html
	dohtml *.html

	cd "${S}"

	newdoc extras/volume_id/README README_volume_id

	echo "CONFIG_PROTECT_MASK=\"/etc/udev/rules.d\"" > 20udev
	doenvd 20udev
}

pkg_preinst() {
	if [[ -d ${ROOT}/lib/udev-state ]]
	then
		mv -f "${ROOT}"/lib/udev-state/* "${D}"/lib/udev/state/
		rm -r "${ROOT}"/lib/udev-state
	fi

	if [[ -f ${ROOT}/etc/udev/udev.config &&
	     ! -f ${ROOT}/etc/udev/udev.rules ]]
	then
		mv -f "${ROOT}"/etc/udev/udev.config "${ROOT}"/etc/udev/udev.rules
	fi

	# delete the old udev.hotplug symlink if it is present
	if [[ -h ${ROOT}/etc/hotplug.d/default/udev.hotplug ]]
	then
		rm -f "${ROOT}"/etc/hotplug.d/default/udev.hotplug
	fi

	# delete the old wait_for_sysfs.hotplug symlink if it is present
	if [[ -h ${ROOT}/etc/hotplug.d/default/05-wait_for_sysfs.hotplug ]]
	then
		rm -f "${ROOT}"/etc/hotplug.d/default/05-wait_for_sysfs.hotplug
	fi

	# delete the old wait_for_sysfs.hotplug symlink if it is present
	if [[ -h ${ROOT}/etc/hotplug.d/default/10-udev.hotplug ]]
	then
		rm -f "${ROOT}"/etc/hotplug.d/default/10-udev.hotplug
	fi

	# is there a stale coldplug initscript? (CONFIG_PROTECT leaves it behind)
	coldplug_stale=""
	if [[ -f ${ROOT}/etc/init.d/coldplug ]]
	then
		coldplug_stale="1"
	fi
}

pkg_postinst() {
	# people want reminders, I'll give them reminders.  Odds are they will
	# just ignore them anyway...

	if [[ ${coldplug_stale} == 1 ]]
	then
		ewarn "A stale coldplug init script found. You should run:"
		ewarn
		ewarn "      rc-update del coldplug"
		ewarn "      rm -f /etc/init.d/coldplug"
		ewarn
		ewarn "udev now provides its own coldplug functionality."
	fi

	# delete 40-scsi-hotplug.rules - all integrated in 50-udev.rules
	if has_version "=sys-fs/udev-103-r3" &&
		[[ -e ${ROOT}/etc/udev/rules.d/40-scsi-hotplug.rules ]]
	then
		ewarn "Deleting stray 40-scsi-hotplug.rules"
		ewarn "installed by sys-fs/udev-103-r3"
		rm -f "${ROOT}"/etc/udev/rules.d/40-scsi-hotplug.rules
	fi

	# Removing some device-nodes we thought we need some time ago
	if [[ -d ${ROOT}/lib/udev/devices ]]
	then
		rm -f "${ROOT}"/lib/udev/devices/{null,zero,console,urandom}
	fi

	# Removing some old file
	if has_version "<sys-fs/udev-104-r5"
	then
		rm -f "${ROOT}"/etc/dev.d/net/hotplug.dev
		rmdir --ignore-fail-on-non-empty "${ROOT}"/etc/dev.d/net 2>/dev/null
	fi

	if has_version "<sys-fs/udev-106-r5" &&
		[[ -e ${ROOT}/etc/udev/rules.d/95-net.rules ]]
	then
		rm -f "${ROOT}"/etc/udev/rules.d/95-net.rules
	fi

	# Try to remove /etc/dev.d as that is obsolete
	if [[ -d ${ROOT}/etc/dev.d ]]
	then
		rmdir --ignore-fail-on-non-empty "${ROOT}"/etc/dev.d/default "${ROOT}"/etc/dev.d 2>/dev/null
		if [[ -d ${ROOT}/etc/dev.d ]]
		then
			ewarn "You still have the directory /etc/dev.d on your system."
			ewarn "This is no longer used by udev and can be removed."
		fi
	fi

	# 64-device-mapper.rules now gets installed by sys-fs/device-mapper
	# remove it if user don't has sys-fs/device-mapper installed
	if has_version "<sys-fs/udev-113" &&
		[[ -f ${ROOT}/etc/udev/rules.d/64-device-mapper.rules ]] &&
		! has_version sys-fs/device-mapper
	then
			rm -f "${ROOT}"/etc/udev/rules.d/64-device-mapper.rules
			einfo "Removed unneeded file 64-device-mapper.rules"
	fi

	if [[ ${ROOT} == / ]]
	then
		# check if root of init-process is identical to ours
		if [[ -r /proc/1/root && /proc/1/root/ -ef /proc/self/root/ ]]
		then
			einfo "restarting udevd now."
			if [[ -n $(pidof udevd) ]]
			then
				killall -15 udevd &>/dev/null
				sleep 1
				killall -9 udevd &>/dev/null
			fi
			/sbin/udevd --daemon
		fi
	fi

	ewarn "If you build an initramfs including udev, then please"
	ewarn "make sure that the /sbin/udevadm binary gets included,"
	ewarn "as the helper apps udevinfo, udevtrigger, ... are now"
	ewarn "only symlinks to udevadm."

	einfo
	einfo "For more information on udev on Gentoo, writing udev rules, and"
	einfo "         fixing known issues visit:"
	einfo "         http://www.gentoo.org/doc/en/udev-guide.xml"
}