# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-fs/udev/udev-171-r8.ebuild,v 1.2 2012/10/27 21:30:17 williamh Exp $

EAPI=4

KV_min=2.6.32
KV_reliable=2.6.32
PATCHSET=${P}-gentoo-patchset-v1
scriptversion=7.1
scriptname=udev-gentoo-scripts
[[ -n "${scriptversion}" ]] && scriptname="${scriptname}-${scriptversion}"

if [[ ${PV} == "9999" ]]
then
	EGIT_REPO_URI="git://git.kernel.org/pub/scm/linux/hotplug/udev.git"
	EGIT_BRANCH="master"
	inherit autotools git-2
fi

inherit eutils flag-o-matic multilib toolchain-funcs linux-info systemd libtool

if [[ ${PV} != "9999" ]]
then
	KEYWORDS="alpha amd64 arm hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86 ~x86-linux"
	# please update testsys-tarball whenever udev-xxx/test/sys/ is changed
	SRC_URI="mirror://kernel/linux/utils/kernel/hotplug/${P}.tar.bz2
			 test? ( mirror://gentoo/${PN}-171-testsys.tar.bz2 )
			 http://dev.gentoo.org/~ssuominen/${PN}-gentoo-legacy-patchset-1.tar.bz2"
	if [[ -n "${PATCHSET}" ]]
	then
		SRC_URI="${SRC_URI} mirror://gentoo/${PATCHSET}.tar.bz2"
	fi
fi
SRC_URI="${SRC_URI} http://dev.gentoo.org/~williamh/dist/${scriptname}.tar.bz2"

DESCRIPTION="Linux dynamic and persistent device naming support (aka userspace devfs)"
HOMEPAGE="http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev/udev.html http://git.kernel.org/?p=linux/hotplug/udev.git;a=summary"

LICENSE="GPL-2"
SLOT="0"
IUSE="build selinux test debug +rule_generator hwdb gudev introspection
	keymap floppy edd action_modeswitch extras"

COMMON_DEPEND="selinux? ( sys-libs/libselinux )
	extras? ( dev-libs/glib:2
		dev-libs/gobject-introspection
		virtual/libusb:0 )
	gudev? ( dev-libs/glib:2 )
	introspection? ( dev-libs/gobject-introspection )
	action_modeswitch? ( virtual/libusb:0 )
	>=sys-apps/util-linux-2.16
	!<sys-libs/glibc-2.11"

DEPEND="${COMMON_DEPEND}
	keymap? ( dev-util/gperf )
	extras? ( dev-util/gperf )
	virtual/pkgconfig
	virtual/os-headers
	!<sys-kernel/linux-headers-2.6.34
	test? ( app-text/tree )"

RDEPEND="${COMMON_DEPEND}
	hwdb?
	(
		>=sys-apps/usbutils-0.82
		|| (
			( sys-apps/hwids >=sys-apps/pciutils-3.1.9-r2 )
			>=sys-apps/pciutils-3.1.9-r1[-compress-db]
			<sys-apps/pciutils-3.1.9-r1[-zlib]
			)
	)
	extras?
	(
		>=sys-apps/usbutils-0.82
		sys-apps/pciutils
	)
	!sys-apps/coldplug
	!<sys-fs/lvm2-2.02.45
	!sys-fs/device-mapper
	>=sys-apps/baselayout-2"

if [[ ${PV} == "9999" ]]
then
	# for documentation processing with xsltproc
	DEPEND="${DEPEND}
		app-text/docbook-xsl-stylesheets
		app-text/docbook-xml-dtd
		dev-util/gtk-doc"
fi

# required kernel options
CONFIG_CHECK="~INOTIFY_USER ~SIGNALFD ~!SYSFS_DEPRECATED ~!SYSFS_DEPRECATED_V2
	~!IDE ~BLK_DEV_BSG"

# Return values:
# 2 - reliable
# 1 - unreliable
# 0 - too old
udev_check_KV() {
	local ok=0
	if kernel_is -ge ${KV_reliable//./ }
	then
		ok=2
	elif kernel_is -ge ${KV_min//./ }
	then
		ok=1
	fi
	return $ok
}

pkg_setup() {
	linux-info_pkg_setup

	# always print kernel version requirements
	ewarn
	ewarn "${P} does not support Linux kernel before version ${KV_min}!"
	if [[ ${KV_min} != ${KV_reliable} ]]
	then
		ewarn "For a reliable udev, use at least kernel ${KV_reliable}"
	fi

	udev_check_KV
	case "$?" in
		2)	einfo "Your kernel version (${KV_FULL}) is new enough to run ${P} reliably." ;;
		1)	ewarn "Your kernel version (${KV_FULL}) is new enough to run ${P},"
			ewarn "but it may be unreliable in some cases."
			;;
		0)	eerror "Your kernel version (${KV_FULL}) is too old to run ${P}"
			;;
	esac

	KV_FULL_SRC=${KV_FULL}
	get_running_version
	udev_check_KV
	if [[ "$?" = "0" ]]
	then
		eerror
		eerror "udev cannot be restarted after emerging,"
		eerror "as your running kernel version (${KV_FULL}) is too old."
		eerror "You really need to use a newer kernel after a reboot!"
		NO_RESTART=1
	fi
}

src_unpack() {
	unpack ${A}
	if [[ ${PV} == "9999" ]]
	then
		git-2_src_unpack
	fi
}

src_prepare() {
	if use test && [[ -d "${WORKDIR}"/test/sys ]]
	then
		mv "${WORKDIR}"/test/sys "${S}"/test/
	fi

	# patches go here...

	# backport some patches
	if [[ -n "${PATCHSET}" ]]
	then
		EPATCH_SOURCE="${WORKDIR}/${PATCHSET}" EPATCH_SUFFIX="patch" \
			  EPATCH_FORCE="yes" epatch
	fi

	# change rules back to group uucp instead of dialout for now
	sed -e 's/GROUP="dialout"/GROUP="uucp"/' \
		-i rules/{rules.d,arch}/*.rules \
	|| die "failed to change group dialout to uucp"

	if [[ ${PV} != 9999 ]]
	then
		# Make sure there is no sudden changes to upstream rules file
		# (more for my own needs than anything else ...)
		MD5=$(md5sum < "${S}/rules/rules.d/50-udev-default.rules")
		MD5=${MD5/  -/}
		if [[ ${MD5} != a9954d57e97aa0ad2e0ed53899d9559a ]]
		then
			eerror "50-udev-default.rules has been updated, please validate!"
			eerror "md5sum: ${MD5}"
			die "50-udev-default.rules has been updated, please validate!"
		fi
	fi

	if [[ ${PV} == 9999 ]]
	then
		gtkdocize --copy || die "gtkdocize failed"
		eautoreconf
	else
		elibtoolize
	fi
}

use_extras() { use extras && echo "--enable-${2:-$1}" || use_enable "$@" ; }
src_configure() {
	econf \
		--prefix="${EPREFIX}/usr" \
		--sysconfdir="${EPREFIX}/etc" \
		--sbindir="${EPREFIX}/sbin" \
		--libdir="${EPREFIX}/usr/$(get_libdir)" \
		--with-rootlibdir="${EPREFIX}/$(get_libdir)" \
		--libexecdir="${EPREFIX}/lib/udev" \
		--enable-logging \
		--enable-static \
		$(use_with selinux) \
		$(use_enable debug) \
		$(use_extras rule_generator) \
		$(use_extras hwdb) \
		--with-pci-ids-path="${EPREFIX}/usr/share/misc/pci.ids" \
		--with-usb-ids-path="${EPREFIX}/usr/share/misc/usb.ids" \
		--disable-udev_acl \
		$(use_extras gudev) \
		$(use_extras introspection) \
		$(use_extras keymap) \
		$(use_extras floppy) \
		$(use_extras edd) \
		$(use_extras action_modeswitch) \
		$(systemd_with_unitdir)
}

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

	emake
}

src_install() {
	into /
	emake DESTDIR="${D}" install

	exeinto /lib/udev
	keepdir /lib/udev/state
	keepdir /lib/udev/devices

	# create symlinks for these utilities to /sbin
	# where multipath-tools expect them to be (Bug #168588)
	dosym "../lib/udev/scsi_id" /sbin/scsi_id

	# Add gentoo stuff to udev.conf
	echo "# If you need to change mount-options, do it in /etc/fstab" \
	>> "${ED}"/etc/udev/udev.conf

	# let the dir exist at least
	keepdir /etc/udev/rules.d

	# Now installing rules
	cd "${S}"/rules
	insinto /lib/udev/rules.d/

	# support older kernels
	doins misc/30-kernel-compat.rules

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

	insinto /etc/modprobe.d
	newins "${WORKDIR}"/blacklist-146 blacklist.conf
	newins "${WORKDIR}"/pnp-aliases pnp-aliases.conf

	# documentation
	dodoc ChangeLog README TODO

	# keep doc in just one directory, Bug #281137
	rm -rf "${ED}/usr/share/doc/${PN}"
	if use keymap
	then
		dodoc extras/keymap/README.keymap.txt
	fi

	cd "${WORKDIR}/${scriptname}"
	sed -i -e 's/2.6.34/2.6.32/' init.d/udev
	doconfd conf.d/*
	exeinto /lib/udev
	doexe helpers/*
	doexe "${WORKDIR}"/shell-compat-KV.sh
	doinitd init.d/*
	insinto /etc/modprobe.d
	doins modprobe.d/*
	insinto /lib/udev/rules.d
	doins rules.d/*
}

src_test() {
	local emake_cmd="${MAKE:-make} ${MAKEOPTS} ${EXTRA_EMAKE}"

	cd "${S}"
	einfo ">>> Test phase [udev:check]: ${CATEGORY}/${PF}"
	has userpriv $FEATURES && einfo "Disable FEATURES userpriv to run the udev tests"
	if ! $emake_cmd -j1 check
	then
		has test $FEATURES && die "udev: Make test failed. See above for details."
		has test $FEATURES || eerror "udev: Make test failed. See above for details."
	fi
}

pkg_preinst() {
	# moving old files to support newer modprobe, 12 May 2009
	local f dir=${EROOT}/etc/modprobe.d/
	for f in pnp-aliases blacklist; do
		if [[ -f $dir/$f && ! -f $dir/$f.conf ]]
		then
			elog "Moving $dir/$f to $f.conf"
			mv -f "$dir/$f" "$dir/$f.conf"
		fi
	done

	if [[ -d ${EROOT}/lib/udev-state ]]
	then
		mv -f "${EROOT}"/lib/udev-state/* "${ED}"/lib/udev/state/
		rm -r "${EROOT}"/lib/udev-state
	fi

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

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

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

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

	has_version "=${CATEGORY}/${PN}-103-r3"
	previous_equal_to_103_r3=$?

	has_version "<${CATEGORY}/${PN}-104-r5"
	previous_less_than_104_r5=$?

	has_version "<${CATEGORY}/${PN}-106-r5"
	previous_less_than_106_r5=$?

	has_version "<${CATEGORY}/${PN}-113"
	previous_less_than_113=$?
}

# 19 Nov 2008
fix_old_persistent_net_rules() {
	local rules=${EROOT}/etc/udev/rules.d/70-persistent-net.rules
	[[ -f ${rules} ]] || return

	elog
	elog "Updating persistent-net rules file"

	# Change ATTRS to ATTR matches, Bug #246927
	sed -i -e 's/ATTRS{/ATTR{/g' "${rules}"

	# Add KERNEL matches if missing, Bug #246849
	sed -ri \
		-e '/KERNEL/ ! { s/NAME="(eth|wlan|ath)([0-9]+)"/KERNEL=="\1*", NAME="\1\2"/}' \
		"${rules}"
}

# See Bug #129204 for a discussion about restarting udevd
restart_udevd() {
	if [[ ${NO_RESTART} = "1" ]]
	then
		ewarn "Not restarting udevd, as your kernel is too old!"
		return
	fi

	# need to merge to our system
	[[ ${EROOT} = / ]] || return

	# check if root of init-process is identical to ours (not in chroot)
	[[ -r /proc/1/root && /proc/1/root/ -ef /proc/self/root/ ]] || return

	# abort if there is no udevd running
	[[ -n $(pidof udevd) ]] || return

	# abort if no /dev/.udev exists
	[[ -e /dev/.udev ]] || return

	elog
	elog "restarting udevd now."

	killall -15 udevd &>/dev/null
	sleep 1
	killall -9 udevd &>/dev/null

	/sbin/udevd --daemon
	sleep 3
	if [[ ! -n $(pidof udevd) ]]
	then
		eerror "FATAL: udev died, please check your kernel is"
		eerror "new enough and configured correctly for ${P}."
		eerror
		eerror "Please have a look at this before rebooting."
		eerror "If in doubt, please downgrade udev back to your old version"
	fi
}

postinst_init_scripts() {
	local enable_postmount=false

	# FIXME: inconsistent handling of init-scripts here
	#  * udev is added to sysinit in openrc-ebuild
	#  * we add udev-postmount to default in here
	#

	# If we are building stages, add udev and udev-mount to the sysinit runlevel
	# automatically.
	if use build
	then
		if [[ -x "${EROOT}"/etc/init.d/udev  \
			&& -d "${EROOT}"/etc/runlevels/sysinit ]]
		then
			ln -s "${EPREFIX}"/etc/init.d/udev "${EROOT}"/etc/runlevels/sysinit/udev
		fi
		if [[ -x "${ROOT}"/etc/init.d/udev-mount \
			&& -d "${ROOT}"/etc/runlevels/sysinit ]]
		then
			ln -s /etc/init.d/udev-mount \
				"${ROOT}"/etc/runlevels/sysinit/udev-mount
		fi
		enable_postmount=true
	fi

	# Warn the user about adding the scripts to their sysinit runlevel
	if [[ -e "${EROOT}"/etc/runlevels/sysinit ]]
	then
		if [[ ! -e "${EROOT}"/etc/runlevels/sysinit/udev ]]
		then
			ewarn
			ewarn "You need to add udev to the sysinit runlevel."
			ewarn "If you do not do this,"
			ewarn "your system will not be able to boot!"
			ewarn "Run this command:"
			ewarn "\trc-update add udev sysinit"
		fi
		if [[ ! -e "${EROOT}"/etc/runlevels/sysinit/udev-mount ]]
		then
			ewarn
			ewarn "You need to add udev-mount to the sysinit runlevel."
			ewarn "If you do not do this,"
			ewarn "your system will not be able to boot!"
			ewarn "Run this command:"
			ewarn "\trc-update add udev-mount sysinit"
		fi
	fi

	# add udev-postmount to default runlevel instead of that ugly injecting
	# like a hotplug event, 2009/10/15

	# already enabled?
	[[ -e "${EROOT}"/etc/runlevels/default/udev-postmount ]] && return

	[[ -e "${EROOT}"/etc/runlevels/sysinit/udev ]] && enable_postmount=true
	[[ "${EROOT}" = "/" && -d /dev/.udev/ ]] && enable_postmount=true

	if $enable_postmount
	then
		local initd=udev-postmount

		if [[ -e ${EROOT}/etc/init.d/${initd} ]] && \
			[[ ! -e ${EROOT}/etc/runlevels/default/${initd} ]]
		then
			ln -snf "${EPREFIX}"/etc/init.d/${initd} "${EROOT}"/etc/runlevels/default/${initd}
			elog "Auto-adding '${initd}' service to your default runlevel"
		fi
	else
		elog "You should add the udev-postmount service to default runlevel."
		elog "Run this to add it:"
		elog "\trc-update add udev-postmount default"
	fi
}

pkg_postinst() {
	fix_old_persistent_net_rules

	# "losetup -f" is confused if there is an empty /dev/loop/, Bug #338766
	# So try to remove it here (will only work if empty).
	rmdir "${EROOT}"/dev/loop 2>/dev/null
	if [[ -d "${EROOT}"/dev/loop ]]
	then
		ewarn "Please make sure your remove /dev/loop,"
		ewarn "else losetup may be confused when looking for unused devices."
	fi

	restart_udevd

	postinst_init_scripts

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

	# delete 40-scsi-hotplug.rules, it is integrated in 50-udev.rules, 19 Jan 2007
	if [[ $previous_equal_to_103_r3 = 0 ]] &&
		[[ -e ${EROOT}/etc/udev/rules.d/40-scsi-hotplug.rules ]]
	then
		ewarn "Deleting stray 40-scsi-hotplug.rules"
		ewarn "installed by sys-fs/udev-103-r3"
		rm -f "${EROOT}"/etc/udev/rules.d/40-scsi-hotplug.rules
	fi

	# Removing some device-nodes we thought we need some time ago, 25 Jan 2007
	if [[ -d ${EROOT}/lib/udev/devices ]]
	then
		rm -f "${EROOT}"/lib/udev/devices/{null,zero,console,urandom}
	fi

	# Removing some old file, 29 Jan 2007
	if [[ $previous_less_than_104_r5 = 0 ]]
	then
		rm -f "${EROOT}"/etc/dev.d/net/hotplug.dev
		rmdir --ignore-fail-on-non-empty "${EROOT}"/etc/dev.d/net 2>/dev/null
	fi

	# 19 Mar 2007
	if [[ $previous_less_than_106_r5 = 0 ]] &&
		[[ -e ${EROOT}/etc/udev/rules.d/95-net.rules ]]
	then
		rm -f "${EROOT}"/etc/udev/rules.d/95-net.rules
	fi

	# Try to remove /etc/dev.d as that is obsolete, 23 Apr 2007
	if [[ -d ${EROOT}/etc/dev.d ]]
	then
		rmdir --ignore-fail-on-non-empty "${EROOT}"/etc/dev.d/default "${EROOT}"/etc/dev.d 2>/dev/null
		if [[ -d ${EROOT}/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, 27 Jun 2007
	if [[ $previous_less_than_113 = 0 ]] &&
		[[ -f ${EROOT}/etc/udev/rules.d/64-device-mapper.rules ]] &&
		! has_version sys-fs/device-mapper
	then
			rm -f "${EROOT}"/etc/udev/rules.d/64-device-mapper.rules
			einfo "Removed unneeded file 64-device-mapper.rules"
	fi

	# requested in Bug #225033:
	elog
	elog "persistent-net does assigning fixed names to network devices."
	elog "If you have problems with the persistent-net rules,"
	elog "just delete the rules file"
	elog "\trm ${EROOT}etc/udev/rules.d/70-persistent-net.rules"
	elog "and then reboot."
	elog
	elog "This may however number your devices in a different way than they are now."

	ewarn
	ewarn "If you build an initramfs including udev, then please"
	ewarn "make sure that the /sbin/udevadm binary gets included,"
	ewarn "and your scripts changed to use it,as it replaces the"
	ewarn "old helper apps udevinfo, udevtrigger, ..."

	ewarn
	ewarn "mount options for directory /dev are no longer"
	ewarn "set in /etc/udev/udev.conf, but in /etc/fstab"
	ewarn "as for other directories."

	ewarn
	ewarn "If you use /dev/md/*, /dev/loop/* or /dev/rd/*,"
	ewarn "then please migrate over to using the device names"
	ewarn "/dev/md*, /dev/loop* and /dev/ram*."
	ewarn "The devfs-compat rules have been removed."
	ewarn "For reference see Bug #269359."

	ewarn
	ewarn "Rules for /dev/hd* devices have been removed"
	ewarn "Please migrate to libata."

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