# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$

EAPI=5

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

DESCRIPTION="OpenRC manages the services, startup and shutdown of a host"
HOMEPAGE="https://github.com/openrc/openrc/"

if [[ ${PV} == "9999" ]]; then
	EGIT_REPO_URI="git://github.com/OpenRC/${PN}.git"
	inherit git-r3
else
	SRC_URI="https://dev.gentoo.org/~williamh/dist/${P}.tar.bz2"
	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd ~sparc-fbsd ~x86-fbsd"
fi

LICENSE="BSD-2"
SLOT="0"
IUSE="audit debug ncurses pam newnet prefix +netifrc selinux static-libs
	tools unicode kernel_linux kernel_FreeBSD"

COMMON_DEPEND="kernel_FreeBSD? ( || ( >=sys-freebsd/freebsd-ubin-9.0_rc sys-process/fuser-bsd ) )
	ncurses? ( sys-libs/ncurses:0= )
	pam? (
		sys-auth/pambase
		virtual/pam
	)
	tools? ( dev-lang/perl )
	audit? ( sys-process/audit )
	kernel_linux? (
		sys-process/psmisc
		!<sys-process/procps-3.3.9-r2
	)
	selinux? (
		sys-apps/policycoreutils
		sys-libs/libselinux
	)
	!<sys-apps/baselayout-2.1-r1
	!<sys-fs/udev-init-scripts-27"
DEPEND="${COMMON_DEPEND}
	virtual/os-headers
	ncurses? ( virtual/pkgconfig )"
RDEPEND="${COMMON_DEPEND}
	!prefix? (
		kernel_linux? ( || ( >=sys-apps/sysvinit-2.86-r6 sys-process/runit ) )
		kernel_FreeBSD? ( sys-freebsd/freebsd-sbin )
	)
	selinux? (
		sec-policy/selinux-base-policy
		sec-policy/selinux-openrc
	)
"

PDEPEND="netifrc? ( net-misc/netifrc )"

src_prepare() {
	sed -i 's:0444:0644:' mk/sys.mk || die

	if [[ ${PV} == "9999" ]] ; then
		local ver="git-${EGIT_VERSION:0:6}"
		sed -i "/^GITVER[[:space:]]*=/s:=.*:=${ver}:" mk/gitver.mk || die
	fi

	# Allow user patches to be applied without modifying the ebuild
	epatch_user
}

src_compile() {
	unset LIBDIR #266688

	MAKE_ARGS="${MAKE_ARGS}
		LIBNAME=$(get_libdir)
		LIBEXECDIR=${EPREFIX}/$(get_libdir)/rc
		MKNET=$(usex newnet)
		MKSELINUX=$(usex selinux)
		MKAUDIT=$(usex audit)
		MKPAM=$(usev pam)
		MKSTATICLIBS=$(usex static-libs)
		MKTOOLS=$(usex tools)"

	local brand="Unknown"
	if use kernel_linux ; then
		MAKE_ARGS="${MAKE_ARGS} OS=Linux"
		brand="Linux"
	elif use kernel_FreeBSD ; then
		MAKE_ARGS="${MAKE_ARGS} OS=FreeBSD"
		brand="FreeBSD"
	fi
	export BRANDING="Gentoo ${brand}"
	use prefix && MAKE_ARGS="${MAKE_ARGS} MKPREFIX=yes PREFIX=${EPREFIX}"
	export DEBUG=$(usev debug)
	export MKTERMCAP=$(usev ncurses)

	tc-export CC AR RANLIB
	emake ${MAKE_ARGS}
}

# set_config <file> <option name> <yes value> <no value> test
# a value of "#" will just comment out the option
set_config() {
	local file="${ED}/$1" var=$2 val com
	eval "${@:5}" && val=$3 || val=$4
	[[ ${val} == "#" ]] && com="#" && val='\2'
	sed -i -r -e "/^#?${var}=/{s:=([\"'])?([^ ]*)\1?:=\1${val}\1:;s:^#?:${com}:}" "${file}"
}

set_config_yes_no() {
	set_config "$1" "$2" YES NO "${@:3}"
}

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

	# move the shared libs back to /usr so ldscript can install
	# more of a minimal set of files
	# disabled for now due to #270646
	#mv "${ED}"/$(get_libdir)/lib{einfo,rc}* "${ED}"/usr/$(get_libdir)/ || die
	#gen_usr_ldscript -a einfo rc
	gen_usr_ldscript libeinfo.so
	gen_usr_ldscript librc.so

	if ! use kernel_linux; then
		keepdir /$(get_libdir)/rc/init.d
	fi
	keepdir /$(get_libdir)/rc/tmp

	# Backup our default runlevels
	dodir /usr/share/"${PN}"
	cp -PR "${ED}"/etc/runlevels "${ED}"/usr/share/${PN} || die
	rm -rf "${ED}"/etc/runlevels

	# Setup unicode defaults for silly unicode users
	set_config_yes_no /etc/rc.conf unicode use unicode

	# Cater to the norm
	set_config_yes_no /etc/conf.d/keymaps windowkeys '(' use x86 '||' use amd64 ')'

	# On HPPA, do not run consolefont by default (bug #222889)
	if use hppa; then
		rm -f "${ED}"/usr/share/openrc/runlevels/boot/consolefont
	fi

	# Support for logfile rotation
	insinto /etc/logrotate.d
	newins "${FILESDIR}"/openrc.logrotate openrc

	# install the gentoo pam.d file
	newpamd "${FILESDIR}"/start-stop-daemon.pam start-stop-daemon

	# install documentation
	dodoc ChangeLog *.md
	if use newnet; then
		dodoc README.newnet
	fi
}

add_boot_init() {
	local initd=$1
	local runlevel=${2:-boot}
	# if the initscript is not going to be installed and is not
	# currently installed, return
	[[ -e "${ED}"/etc/init.d/${initd} || -e "${EROOT}"etc/init.d/${initd} ]] \
		|| return
	[[ -e "${EROOT}"etc/runlevels/${runlevel}/${initd} ]] && return

	# if runlevels dont exist just yet, then create it but still flag
	# to pkg_postinst that it needs real setup #277323
	if [[ ! -d "${EROOT}"etc/runlevels/${runlevel} ]] ; then
		mkdir -p "${EROOT}"etc/runlevels/${runlevel}
		touch "${EROOT}"etc/runlevels/.add_boot_init.created
	fi

	elog "Auto-adding '${initd}' service to your ${runlevel} runlevel"
	ln -snf /etc/init.d/${initd} "${EROOT}"etc/runlevels/${runlevel}/${initd}
}
add_boot_init_mit_config() {
	local config=$1 initd=$2
	if [[ -e ${EROOT}${config} ]] ; then
		if [[ -n $(sed -e 's:#.*::' -e '/^[[:space:]]*$/d' "${EROOT}"${config}) ]] ; then
			add_boot_init ${initd}
		fi
	fi
}

pkg_preinst() {
	local f LIBDIR=$(get_libdir)

	# avoid default thrashing in conf.d files when possible #295406
	if [[ -e "${EROOT}"etc/conf.d/hostname ]] ; then
		(
		unset hostname HOSTNAME
		source "${EROOT}"etc/conf.d/hostname
		: ${hostname:=${HOSTNAME}}
		[[ -n ${hostname} ]] && set_config /etc/conf.d/hostname hostname "${hostname}"
		)
	fi

	# set default interactive shell to sulogin if it exists
	set_config /etc/rc.conf rc_shell /sbin/sulogin "#" test -e /sbin/sulogin

	# termencoding was added in 0.2.1 and needed in boot
	has_version ">=sys-apps/openrc-0.2.1" || add_boot_init termencoding

	# swapfiles was added in 0.9.9 and needed in boot (february 2012)
	has_version ">=sys-apps/openrc-0.9.9" || add_boot_init swapfiles

	if ! has_version ">=sys-apps/openrc-0.11"; then
		add_boot_init sysfs sysinit
	fi

	if ! has_version ">=sys-apps/openrc-0.11.3" ; then
		migrate_udev_mount_script
		add_boot_init tmpfiles.setup boot
	fi

	# these were added in 0.12.
	if ! has_version ">=sys-apps/openrc-0.12"; then
		add_boot_init loopback
		add_boot_init tmpfiles.dev sysinit

		# ensure existing /etc/conf.d/net is not removed
		# undoes the hack to get around CONFIG_PROTECT in openrc-0.11.8 and earlier
		# this needs to stay in openrc ebuilds for a long time. :(
		# Added in 0.12.
		if [[ -f "${EROOT}"etc/conf.d/net ]]; then
			einfo "Modifying conf.d/net to keep it from being removed"
			cat <<-EOF >>"${EROOT}"etc/conf.d/net

# The network scripts are now part of net-misc/netifrc
# In order to avoid sys-apps/${P} from removing this file, this comment was
# added; you can safely remove this comment.  Please see
# /usr/share/doc/netifrc*/README* for more information.
EOF
		fi
	fi
	has_version ">=sys-apps/openrc-0.14" || add_boot_init binfmt

	if ! has_version ">=sys-apps/openrc-0.18.3"; then
		add_boot_init mtab
		if [[ -f "${EROOT}"etc/mtab ]] && [[ ! -L "${EROOT}"etc/mtab ]]; then
			ewarn "${EROOT}etc/mtab will be replaced with a"
			ewarn "symbolic link to /proc/self/mounts on the next"
			ewarn "reboot."
			ewarn "Change the setting in ${EROOT}etc/conf.d/mtab"
			ewarn "if you do not want this to happen."
		fi
	fi
}

# >=OpenRC-0.11.3 requires udev-mount to be in the sysinit runlevel with udev.
migrate_udev_mount_script() {
	if [ -e "${EROOT}"etc/runlevels/sysinit/udev -a \
		! -e "${EROOT}"etc/runlevels/sysinit/udev-mount ]; then
		add_boot_init udev-mount sysinit
	fi
	return 0
}

pkg_postinst() {
	local LIBDIR=$(get_libdir)

	# Make our runlevels if they don't exist
	if [[ ! -e "${EROOT}"etc/runlevels ]] || [[ -e "${EROOT}"etc/runlevels/.add_boot_init.created ]] ; then
		einfo "Copying across default runlevels"
		cp -RPp "${EROOT}"usr/share/${PN}/runlevels "${EROOT}"etc
		rm -f "${EROOT}"etc/runlevels/.add_boot_init.created
	else
		if [[ ! -e "${EROOT}"etc/runlevels/sysinit/devfs ]] ; then
			mkdir -p "${EROOT}"etc/runlevels/sysinit
			cp -RPp "${EROOT}"usr/share/${PN}/runlevels/sysinit/* \
				"${EROOT}"etc/runlevels/sysinit
		fi
		if [[ ! -e "${EROOT}"etc/runlevels/shutdown/mount-ro ]] ; then
			mkdir -p "${EROOT}"etc/runlevels/shutdown
			cp -RPp "${EROOT}"usr/share/${PN}/runlevels/shutdown/* \
				"${EROOT}"etc/runlevels/shutdown
		fi
	fi

	if use hppa; then
		elog "Setting the console font does not work on all HPPA consoles."
		elog "You can still enable it by running:"
		elog "# rc-update add consolefont boot"
	fi

	# Handle the conf.d/local.{start,stop} -> local.d transition
	if path_exists -o "${EROOT}"etc/conf.d/local.{start,stop} ; then
		elog "Moving your ${EROOT}etc/conf.d/local.{start,stop}"
		elog "files to ${EROOT}etc/local.d"
		mv "${EROOT}"etc/conf.d/local.start "${EROOT}"etc/local.d/baselayout1.start
		mv "${EROOT}"etc/conf.d/local.stop "${EROOT}"etc/local.d/baselayout1.stop
		chmod +x "${EROOT}"etc/local.d/*{start,stop}
	fi

	if use kernel_linux && [[ "${EROOT}" = "/" ]]; then
		if ! /$(get_libdir)/rc/sh/migrate-to-run.sh; then
			ewarn "The dependency data could not be migrated to /run/openrc."
			ewarn "This means you need to reboot your system."
		fi
	fi

	# update the dependency tree after touching all files #224171
	[[ "${EROOT}" = "/" ]] && "${EROOT}/${LIBDIR}"/rc/bin/rc-depend -u

	if ! use newnet && ! use netifrc; then
		ewarn "You have emerged OpenRc without network support. This"
		ewarn "means you need to SET UP a network manager such as"
		ewarn "	net-misc/netifrc, net-misc/dhcpcd, net-misc/wicd,"
		ewarn "net-misc/NetworkManager, or net-misc/badvpn."
		ewarn "Or, you have the option of emerging openrc with the newnet"
		ewarn "use flag and configuring /etc/conf.d/network and"
		ewarn "/etc/conf.d/staticroute if you only use static interfaces."
		ewarn
	fi

	if use newnet && [ ! -e "${EROOT}"etc/runlevels/boot/network ]; then
		ewarn "Please add the network service to your boot runlevel"
		ewarn "as soon as possible. Not doing so could leave you with a system"
		ewarn "without networking."
		ewarn
	fi

	ewarn "In this version of OpenRC, the loopback interface no longer"
	ewarn "satisfies the net virtual."
	ewarn "If you have services now which do not start because of this,"
	ewarn "They can be fixed by adding rc_need=\"!net\""
	ewarn "to the ${EROOT}etc/conf.d/<servicename> file."
	ewarn "You should also file a bug against the service asking that"
	ewarn "need net be dropped from the dependencies."
	ewarn "The bug you file should block the following tracker:"
	ewarn "https://bugs.gentoo.org/show_bug.cgi?id=439092"
	ewarn

	# Updated for 0.13.2.
	ewarn "Bug https://bugs.gentoo.org/show_bug.cgi?id=427996 was not"
	ewarn "fixed correctly in earlier versions of OpenRC."
	ewarn "The correct fix is implemented in this version, but that"
	ewarn "means netmount needs to be added to the default runlevel if"
	ewarn "you are using nfs file systems."
	ewarn

	elog "You should now update all files in /etc, using etc-update"
	elog "or equivalent before restarting any services or this host."
}