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

EAPI=6
PYTHON_COMPAT=( python2_7 )

inherit autotools eutils linux-info flag-o-matic python-any-r1 readme.gentoo-r1 systemd virtualx user multilib-minimal

DESCRIPTION="A message bus system, a simple way for applications to talk to each other"
HOMEPAGE="http://dbus.freedesktop.org/"
SRC_URI="http://dbus.freedesktop.org/releases/dbus/${P}.tar.gz"

LICENSE="|| ( AFL-2.1 GPL-2 )"
SLOT="0"
KEYWORDS="~alpha amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~x64-freebsd ~x86-freebsd ~amd64-linux ~arm-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~x86-solaris"
IUSE="debug doc selinux static-libs systemd test user-session X"

RESTRICT="test"

CDEPEND="
	>=dev-libs/expat-2
	selinux? (
		sys-libs/libselinux
		)
	systemd? ( sys-apps/systemd:0= )
	X? (
		x11-libs/libX11
		x11-libs/libXt
		)
	abi_x86_32? (
		!<=app-emulation/emul-linux-x86-baselibs-20131008-r4
		!app-emulation/emul-linux-x86-baselibs[-abi_x86_32(-)]
	)
"
DEPEND="${CDEPEND}
	app-text/xmlto
	app-text/docbook-xml-dtd:4.4
	virtual/pkgconfig
	doc? ( app-doc/doxygen )
	test? (
		>=dev-libs/glib-2.36:2
		${PYTHON_DEPS}
		)
"
RDEPEND="${CDEPEND}
	selinux? ( sec-policy/selinux-dbus )
"

DOC_CONTENTS="
	Some applications require a session bus in addition to the system
	bus. Please see \`man dbus-launch\` for more information.
"

# out of sources build dir for make check
TBD=${WORKDIR}/${P}-tests-build

pkg_setup() {
	enewgroup messagebus
	enewuser messagebus -1 -1 -1 messagebus

	use test && python-any-r1_pkg_setup

	if use kernel_linux; then
		CONFIG_CHECK="~EPOLL"
		linux-info_pkg_setup
	fi
}

src_prepare() {
	# Tests were restricted because of this
	sed -i \
		-e 's/.*bus_dispatch_test.*/printf ("Disabled due to excess noise\\n");/' \
		-e '/"dispatch"/d' \
		bus/test-main.c || die

	eapply_user

	# required for asneeded patch but also for bug 263909, cross-compile so
	# don't remove eautoreconf
	eautoreconf
}

multilib_src_configure() {
	local docconf myconf

	# so we can get backtraces from apps
	case ${CHOST} in
		*-mingw*)
			# error: unrecognized command line option '-rdynamic' wrt #488036
			;;
		*)
			append-flags -rdynamic
			;;
	esac

	# libaudit is *only* used in DBus wrt SELinux support, so disable it, if
	# not on an SELinux profile.
	myconf=(
		--localstatedir="${EPREFIX}/var"
		--docdir="${EPREFIX}/usr/share/doc/${PF}"
		--htmldir="${EPREFIX}/usr/share/doc/${PF}/html"
		$(use_enable static-libs static)
		$(use_enable debug verbose-mode)
		--disable-asserts
		--disable-checks
		$(use_enable selinux)
		$(use_enable selinux libaudit)
		--disable-apparmor
		$(use_enable kernel_linux inotify)
		$(use_enable kernel_FreeBSD kqueue)
		$(use_enable systemd)
		$(use_enable user-session)
		--disable-embedded-tests
		--disable-modular-tests
		$(use_enable debug stats)
		--with-session-socket-dir="${EPREFIX}"/tmp
		--with-system-pid-file="${EPREFIX}"/var/run/dbus.pid
		--with-system-socket="${EPREFIX}"/var/run/dbus/system_bus_socket
		--with-systemdsystemunitdir="$(systemd_get_systemunitdir)"
		--with-dbus-user=messagebus
		$(use_with X x)
		)

	if [[ ${CHOST} == *-darwin* ]]; then
		myconf+=(
			--enable-launchd
			--with-launchd-agent-dir="${EPREFIX}"/Library/LaunchAgents
		)
	fi

	if multilib_is_native_abi; then
		docconf=(
			--enable-xml-docs
			$(use_enable doc doxygen-docs)
		)
	else
		docconf=(
			--disable-xml-docs
			--disable-doxygen-docs
		)
		myconf+=(
			--disable-selinux
			--disable-libaudit
			--disable-systemd
			--without-x

			# expat is used for the daemon only
			# fake the check for multilib library build
			ac_cv_lib_expat_XML_ParserCreate_MM=yes
		)
	fi

	einfo "Running configure in ${BUILD_DIR}"
	ECONF_SOURCE="${S}" econf "${myconf[@]}" "${docconf[@]}"

	if multilib_is_native_abi && use test; then
		mkdir "${TBD}" || die
		cd "${TBD}" || die
		einfo "Running configure in ${TBD}"
		ECONF_SOURCE="${S}" econf "${myconf[@]}" \
			$(use_enable test asserts) \
			$(use_enable test checks) \
			$(use_enable test embedded-tests) \
			$(has_version dev-libs/dbus-glib && echo --enable-modular-tests)
	fi
}

multilib_src_compile() {
	if multilib_is_native_abi; then
		# after the compile, it uses a selinuxfs interface to
		# check if the SELinux policy has the right support
		use selinux && addwrite /selinux/access

		einfo "Running make in ${BUILD_DIR}"
		emake

		if use test; then
			einfo "Running make in ${TBD}"
			emake -C "${TBD}"
		fi
	else
		emake -C dbus libdbus-1.la
	fi
}

src_test() {
	DBUS_VERBOSE=1 Xemake -j1 -C "${TBD}" check
}

multilib_src_install() {
	if multilib_is_native_abi; then
		emake DESTDIR="${D}" install
	else
		emake DESTDIR="${D}" install-pkgconfigDATA
		emake DESTDIR="${D}" -C dbus \
			install-libLTLIBRARIES install-dbusincludeHEADERS \
			install-nodist_dbusarchincludeHEADERS
	fi
}

multilib_src_install_all() {
	newinitd "${FILESDIR}"/dbus.initd-r1 dbus

	if use X; then
		# dbus X session script (#77504)
		# turns out to only work for GDM (and startx). has been merged into
		# other desktop (kdm and such scripts)
		exeinto /etc/X11/xinit/xinitrc.d
		doexe "${FILESDIR}"/80-dbus
	fi

	# needs to exist for dbus sessions to launch
	keepdir /usr/share/dbus-1/services
	keepdir /etc/dbus-1/{session,system}.d
	# machine-id symlink from pkg_postinst()
	keepdir /var/lib/dbus
	# let the init script create the /var/run/dbus directory
	rm -rf "${ED}"/var/run

	dodoc AUTHORS ChangeLog HACKING NEWS README doc/TODO
	readme.gentoo_create_doc

	prune_libtool_files --all
}

pkg_postinst() {
	readme.gentoo_print_elog

	# Ensure unique id is generated and put it in /etc wrt #370451 but symlink
	# for DBUS_MACHINE_UUID_FILE (see tools/dbus-launch.c) and reverse
	# dependencies with hardcoded paths (although the known ones got fixed already)
	dbus-uuidgen --ensure="${EROOT%/}"/etc/machine-id
	ln -sf "${EPREFIX}"/etc/machine-id "${EROOT%/}"/var/lib/dbus/machine-id

	if [[ ${CHOST} == *-darwin* ]]; then
		local plist="org.freedesktop.dbus-session.plist"
		elog
		elog
		elog "For MacOS/Darwin we now ship launchd support for dbus."
		elog "This enables autolaunch of dbus at session login and makes"
		elog "dbus usable under MacOS/Darwin."
		elog
		elog "The launchd plist file ${plist} has been"
		elog "installed in ${EPREFIX}/Library/LaunchAgents."
		elog "For it to be used, you will have to do all of the following:"
		elog " + cd ~/Library/LaunchAgents"
		elog " + ln -s ${EPREFIX}/Library/LaunchAgents/${plist}"
		elog " + logout and log back in"
		elog
		elog "If your application needs a proper DBUS_SESSION_BUS_ADDRESS"
		elog "specified and refused to start otherwise, then export the"
		elog "the following to your environment:"
		elog " DBUS_SESSION_BUS_ADDRESS=\"launchd:env=DBUS_LAUNCHD_SESSION_BUS_SOCKET\""
	fi

	if use user-session; then
		ewarn "You have enabled user-session. Please note this can cause"
		ewarn "bogus behaviors in several dbus consumers that are not prepared"
		ewarn "for this dbus activation method yet."
		ewarn
		ewarn "See the following link for background on this change:"
		ewarn "https://lists.freedesktop.org/archives/systemd-devel/2015-January/027711.html"
		ewarn
		ewarn "Known issues are tracked here:"
		ewarn "https://bugs.gentoo.org/show_bug.cgi?id=576028"
	fi
}