# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI=6

DESCRIPTION="Fast, dense and secure container management"
HOMEPAGE="https://linuxcontainers.org/lxd/introduction/"
EGO_PN_PARENT="github.com/lxc"
EGO_PN="${EGO_PN_PARENT}/lxd"

# Maintained with https://github.com/hsoft/gentoo-ego-vendor-update
# The "# branch" comments are there for the script, they're important.
EGO_VENDOR=(
	"github.com/dustinkirkland/golang-petname d3c2ba80e75eeef10c5cf2fc76d2c809637376b3"
	"github.com/golang/protobuf 1643683e1b54a9e88ad26d98f81400c8c9d9f4f9"
	"github.com/gorilla/mux 7625a85c14e615274a4ee4bc8654f72310a563e4"
	"github.com/gorilla/websocket 71fa72d4842364bc5f74185f4161e0099ea3624a"
	"github.com/gosexy/gettext 74466a0a0c4a62fea38f44aa161d4bbfbe79dd6b"
	"github.com/jessevdk/go-flags f88afde2fa19a30cf50ba4b05b3d13bc6bae3079"
	"github.com/mattn/go-colorable ad5389df28cdac544c99bd7b9161a0b5b6ca9d1b"
	"github.com/mattn/go-runewidth 97311d9f7767e3d6f422ea06661bc2c7a19e8a5d"
	"github.com/mattn/go-sqlite3 615c193e01d8d462eef7ee390171506f531a1c9a"
	"github.com/olekukonko/tablewriter a7a4c189eb47ed33ce7b35f2880070a0c82a67d4"
	"github.com/pborman/uuid e790cca94e6cc75c7064b1332e63811d4aae1a53"
	"github.com/stretchr/testify 2aa2c176b9dab406a6970f6a55f513e8a8c8b18f"
	"github.com/syndtr/gocapability db04d3cc01c8b54962a58ec7e491717d06cfcc16"
	"github.com/go-stack/stack 817915b46b97fd7bb80e8ab6b69f01a53ac3eebf"
	"github.com/mattn/go-isatty a5cdd64afdee435007ee3e9f6ed4684af949d568"
	"github.com/juju/errors c7d06af17c68cd34c835053720b21f6549d9b0ee"
	"golang.org/x/crypto 2509b142fb2b797aa7587dad548f113b2c0f20ce github.com/golang/crypto"
	"golang.org/x/net c73622c77280266305273cb545f54516ced95b93 github.com/golang/net"
	"golang.org/x/sync 8e0aa688b654ef28caa72506fa5ec8dba9fc7690 github.com/golang/sync"
	"golang.org/x/text 6eab0e8f74e86c598ec3b6fad4888e0c11482d48 github.com/golang/text"
	"golang.org/x/tools 9b61fcc4c548d69663d915801fc4b42a43b6cd9c github.com/golang/tools"
	"golang.org/x/sys 661970f62f5897bc0cd5fdca7e087ba8a98a8fa1 github.com/golang/sys"
	"gopkg.in/check.v1 20d25e2804050c1cd24a7eea1e7a6447dd0e74ec github.com/go-check/check" # branch v1
	"gopkg.in/flosch/pongo2.v3 5e81b817a0c48c1c57cdf1a9056cf76bdee02ca9 github.com/flosch/pongo2" # branch v3
	"gopkg.in/inconshreveable/log15.v2 0decfc6c20d9ca0ad143b0e89dcaa20f810b4fb3 github.com/inconshreveable/log15" # branch master
	"gopkg.in/lxc/go-lxc.v2 74fb852c18ea4341f85e49bb6f33635946aabda7 github.com/lxc/go-lxc" # branch v2
	"gopkg.in/tomb.v2 d5d1b5820637886def9eef33e03a27a9f166942c github.com/go-tomb/tomb" # branch v2
	"gopkg.in/yaml.v2 eb3733d160e74a9c7e442f435eb3bea458e1d19f github.com/go-yaml/yaml" # branch v2
)

ARCHIVE_URI="https://${EGO_PN}/archive/${P}.tar.gz -> ${P}.tar.gz"
LICENSE="Apache-2.0"
SLOT="0"
KEYWORDS="~amd64"

IUSE="+daemon +ipv6 +dnsmasq nls test"

inherit bash-completion-r1 linux-info systemd user golang-vcs-snapshot

SRC_URI="${ARCHIVE_URI}
	${EGO_VENDOR_URI}"

DEPEND="
	>=dev-lang/go-1.7.1
	dev-libs/protobuf
	nls? ( sys-devel/gettext )
	test? (
		app-misc/jq
		dev-db/sqlite
		net-misc/curl
		sys-devel/gettext
	)
"

RDEPEND="
	daemon? (
		app-arch/xz-utils
		>=app-emulation/lxc-2.0.7[seccomp]
		dnsmasq? (
			net-dns/dnsmasq[dhcp,ipv6?]
		)
		net-misc/rsync[xattr]
		sys-apps/iproute2[ipv6?]
		sys-fs/squashfs-tools
		virtual/acl
	)
"

CONFIG_CHECK="
	~BRIDGE
	~DUMMY
	~IP6_NF_NAT
	~IP6_NF_TARGET_MASQUERADE
	~IPV6
	~IP_NF_NAT
	~IP_NF_TARGET_MASQUERADE
	~MACVLAN
	~NETFILTER_XT_MATCH_COMMENT
	~NET_IPGRE
	~NET_IPGRE_DEMUX
	~NET_IPIP
	~NF_NAT_MASQUERADE_IPV4
	~NF_NAT_MASQUERADE_IPV6
	~VXLAN
"

ERROR_BRIDGE="BRIDGE: needed for network commands"
ERROR_DUMMY="DUMMY: needed for network commands"
ERROR_IP6_NF_NAT="IP6_NF_NAT: needed for network commands"
ERROR_IP6_NF_TARGET_MASQUERADE="IP6_NF_TARGET_MASQUERADE: needed for network commands"
ERROR_IPV6="IPV6: needed for network commands"
ERROR_IP_NF_NAT="IP_NF_NAT: needed for network commands"
ERROR_IP_NF_TARGET_MASQUERADE="IP_NF_TARGET_MASQUERADE: needed for network commands"
ERROR_MACVLAN="MACVLAN: needed for network commands"
ERROR_NETFILTER_XT_MATCH_COMMENT="NETFILTER_XT_MATCH_COMMENT: needed for network commands"
ERROR_NET_IPGRE="NET_IPGRE: needed for network commands"
ERROR_NET_IPGRE_DEMUX="NET_IPGRE_DEMUX: needed for network commands"
ERROR_NET_IPIP="NET_IPIP: needed for network commands"
ERROR_NF_NAT_MASQUERADE_IPV4="NF_NAT_MASQUERADE_IPV4: needed for network commands"
ERROR_NF_NAT_MASQUERADE_IPV6="NF_NAT_MASQUERADE_IPV6: needed for network commands"
ERROR_VXLAN="VXLAN: needed for network commands"

PATCHES=(
	"${FILESDIR}/${P}-dont-go-get.patch"
)

src_prepare() {
	default_src_prepare

	# Examples in go-lxc make our build fail.
	rm -rf "${S}/src/${EGO_PN}/vendor/gopkg.in/lxc/go-lxc.v2/examples" || die
}

src_compile() {
	export GOPATH="${S}"

	cd "${S}/src/${EGO_PN}" || die "Failed to change to deep src dir"

	tmpgoroot="${T}/goroot"
	if use daemon; then
		# Build binaries
		emake
	else
		# build client tool
		emake client
	fi

	use nls && emake build-mo
}

src_test() {
	if use daemon; then
		export GOPATH="${S}"
		cd "${S}/src/${EGO_PN}" || die "Failed to change to deep src dir"

		emake check
	fi
}

src_install() {
	dobin bin/lxc
	if use daemon; then
		dosbin bin/lxd
		dobin bin/fuidshift
	fi

	cd "src/${EGO_PN}" || die "can't cd into ${S}/src/${EGO_PN}"

	if use nls; then
		domo po/*.mo
	fi

	if use daemon; then
		newinitd "${FILESDIR}"/${PN}.initd lxd
		newconfd "${FILESDIR}"/${PN}.confd lxd

		systemd_newunit "${FILESDIR}"/${PN}.service ${PN}.service
	fi

	newbashcomp config/bash/lxd-client lxc

	dodoc AUTHORS README.md doc/*
}

pkg_postinst() {
	einfo
	einfo "Consult https://wiki.gentoo.org/wiki/LXD for more information,"
	einfo "including a Quick Start."

	# The messaging below only applies to daemon installs
	use daemon || return 0

	# The control socket will be owned by (and writeable by) this group.
	enewgroup lxd

	# Ubuntu also defines an lxd user but it appears unused (the daemon
	# must run as root)

	einfo
	einfo "Though not strictly required, some features are enabled at run-time"
	einfo "when the relevant helper programs are detected:"
	einfo "- sys-apps/apparmor"
	einfo "- sys-fs/btrfs-progs"
	einfo "- sys-fs/lvm2"
	einfo "- sys-fs/lxcfs"
	einfo "- sys-fs/zfs"
	einfo "- sys-process/criu"
	einfo
	einfo "Since these features can't be disabled at build-time they are"
	einfo "not USE-conditional."
	einfo
	einfo "Networks with bridge.mode=fan are unsupported due to requiring"
	einfo "a patched kernel and iproute2."
}