# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/app-emulation/lxc/lxc-0.7.4.1.ebuild,v 1.1 2011/03/30 12:09:06 flameeyes Exp $

EAPI="2"

MY_P="${P/_/-}"

inherit eutils linux-info versionator base

DESCRIPTION="LinuX Containers userspace utilities"
HOMEPAGE="http://lxc.sourceforge.net/"
SRC_URI="http://lxc.sourceforge.net/download/lxc/${MY_P}.tar.gz"
S="${WORKDIR}/${MY_P}"

KEYWORDS="~amd64 ~x86"

LICENSE="LGPL-3"
SLOT="0"
IUSE="doc examples vanilla"

RDEPEND="sys-libs/libcap"

DEPEND="${RDEPEND}
	doc? ( app-text/docbook-sgml-utils )
	>=sys-kernel/linux-headers-2.6.29"

# For init script, so protect with vanilla, they are not strictly
# needed.
RDEPEND="${RDEPEND}
	vanilla? (
		sys-apps/util-linux
		app-misc/pax-utils
	)"

CONFIG_CHECK="~CGROUPS
	~CGROUP_NS ~CPUSETS ~CGROUP_CPUACCT
	~RESOURCE_COUNTERS ~CGROUP_MEM_RES_CTLR
	~CGROUP_SCHED

	~NAMESPACES
	~IPC_NS ~USER_NS ~PID_NS

	~DEVPTS_MULTIPLE_INSTANCES
	~CGROUP_FREEZER
	~UTS_NS ~NET_NS
	~VETH ~MACVLAN"

ERROR_DEVPTS_MULTIPLE_INSTANCES="CONFIG_DEVPTS_MULTIPLE_INSTANCES:	needed for pts inside container"

ERROR_CGROUP_FREEZER="CONFIG_CGROUP_FREEZER:	needed to freeze containers"

ERROR_UTS_NS="CONFIG_UTS_NS:	needed to unshare hostnames and uname info"
ERROR_NET_NS="CONFIG_NET_NS:	needed for unshared network"

ERROR_VETH="CONFIG_VETH:	needed for internal (host-to-container) networking"
ERROR_MACVLAN="CONFIG_MACVLAN:	needed for internal (inter-container) networking"

src_configure() {
	econf \
		--localstatedir=/var \
		--bindir=/usr/sbin \
		--docdir=/usr/share/doc/${PF} \
		--with-config-path=/etc/lxc	\
		--with-rootfs-path=/usr/lib/lxc/rootfs \
		--with-linuxdir="${KERNEL_DIR}" \
		$(use_enable doc) \
		$(use_enable examples) \
		|| die "configure failed"
}

src_install() {
	emake DESTDIR="${D}" install || die "install failed"

	dodoc AUTHORS CONTRIBUTING MAINTAINERS \
		NEWS TODO README doc/FAQ.txt || die "dodoc failed"

	# If the documentation is going to be rebuilt, the Makefiles will
	# install the man pages themselves; if we're not going to, we
	# still need to install them, as they are provided with the
	# tarball in recent versions.
	if ! use doc; then
		doman doc/*.{1,5,7} || die
	fi

	rm -r "${D}"/usr/sbin/lxc-{setcap,ls} \
		"${D}"/usr/share/man/man1/lxc-ls.1 \
		|| die "unable to remove extraenous content"

	keepdir /etc/lxc /usr/lib/lxc/rootfs

	find "${D}" -name '*.la' -delete

	use vanilla && return 0

	# Gentoo-specific additions!
	newinitd "${FILESDIR}/${PN}.initd" ${PN}
	keepdir /var/log/lxc
}

pkg_postinst() {
	if ! use vanilla; then
		elog "There is an init script provided with the package now; no documentation"
		elog "is currently available though, so please check out /etc/init.d/lxc ."
		elog "You _should_ only need to symlink it to /etc/init.d/lxc.configname"
		elog "to start the container defined into /etc/lxc/configname.conf ."
		elog "For further information about LXC development see"
		elog "http://blog.flameeyes.eu/tag/lxc" # remove once proper doc is available
		elog ""
	fi
	ewarn "With version 0.7.4, the mountpoint syntax came back to the one used by 0.7.2"
	ewarn "and previous versions. This means you'll have to use syntax like the following"
	ewarn ""
	ewarn "    lxc.rootfs = /container"
	ewarn "    lxc.mount.entry = /usr/portage /container/usr/portage none bind 0 0"
	ewarn ""
	ewarn "To use the Fedora, Debian and (various) Ubuntu auto-configuration scripts, you"
	ewarn "will need sys-apps/yum or dev-util/debootstrap."
}