# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit go-module linux-info

# update on bump, look for https://github.com/docker\
# docker-ce/blob/<docker ver OR branch>/components/engine/hack/dockerfile/install/runc.installer
RUNC_COMMIT=84113eef6fc27af1b01b3181f31bbaf708715301
CONFIG_CHECK="~USER_NS"

DESCRIPTION="runc container cli tools"
HOMEPAGE="http://runc.io"
MY_PV="${PV/_/-}"
SRC_URI="https://github.com/opencontainers/${PN}/archive/v${MY_PV}.tar.gz -> ${P}.tar.gz"

# This includes the licenses of dependencies as the binary is statically linked.
#
# If LICENSE contains BSD, ISC, or MIT, then chromite will scan the source for
# copyright attribution. If the package vendors its dependencies or includes a
# THIRD_PARTY_LICENSES/ directory, then chromite will properly attribute all
# dependencies in about_os_credits.html.
#
# This list was determined by inspecting the output of:
#   go-licenses csv github.com/opencontainers/runc
# inside a clone of the package repo.
# https://github.com/google/go-licenses
LICENSE="Apache-2.0 BSD-2 BSD MIT"
SLOT="0"
KEYWORDS="*"
IUSE="apparmor hardened +kmem +seccomp test"

DEPEND="seccomp? ( sys-libs/libseccomp )"

RDEPEND="
	${DEPEND}
	!app-emulation/docker-runc
	apparmor? ( sys-libs/libapparmor )
"

BDEPEND="
	dev-go/go-md2man
	test? ( "${RDEPEND}" )
"

# tests need busybox binary, and portage namespace
# sandboxing disabled: mount-sandbox pid-sandbox ipc-sandbox
# majority of tests pass
RESTRICT+=" test"

S="${WORKDIR}/${PN}-${MY_PV}"

PATCHES="
	${FILESDIR}/1.0.0-Do-not-clone-proc-self-exe-in-case-of-lakitu.patch
"

src_compile() {
	# Taken from app-emulation/docker-1.7.0-r1
	export CGO_CFLAGS="-I${ESYSROOT}/usr/include"
	export CGO_LDFLAGS="$(usex hardened '-fno-PIC ' '')
		-L${ESYSROOT}/usr/$(get_libdir)"

	# build up optional flags
	local options=(
		$(usev apparmor)
		$(usev seccomp)
		$(usex kmem '' 'nokmem')
	)

	myemakeargs=(
		BUILDTAGS="${options[*]}"
		COMMIT="${RUNC_COMMIT}"
		# lakitu: use the Go cross-compiler
		GO="$(tc-getGO)"
	)

	# lakitu: cause Go panics to segfault, resulting in core dump collection of
	# the process.
	export GOTRACEBACK="crash"
	emake "${myemakeargs[@]}" runc man
}

src_install() {
	myemakeargs+=(
		PREFIX="${ED}/usr"
		BINDIR="${ED}/usr/bin"
		MANDIR="${ED}/usr/share/man"
	)
	emake "${myemakeargs[@]}" install install-man install-bash

	local DOCS=( README.md PRINCIPLES.md docs/. )
	einstalldocs
}

src_test() {
	emake "${myemakeargs[@]}" localunittest
}