# Copyright 2020-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

PYTHON_COMPAT=( python3_{9..11} )
inherit autotools pam python-single-r1 systemd

DESCRIPTION="The FRRouting Protocol Suite"
HOMEPAGE="https://frrouting.org/"
SRC_URI="https://github.com/FRRouting/frr/archive/${P}.tar.gz"
# FRR tarballs have weird format.
S="${WORKDIR}/frr-${P}"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~arm64 ~x86"
IUSE="doc fpm grpc ipv6 nhrp ospfapi pam rpki snmp test"
REQUIRED_USE="${PYTHON_REQUIRED_USE}"
RESTRICT="!test? ( test )"

COMMON_DEPEND="
	${PYTHON_DEPS}
	acct-user/frr
	dev-libs/json-c:0=
	>=net-libs/libyang-2.0.0
	sys-libs/libcap
	sys-libs/readline:0=
	virtual/libcrypt:=
	grpc? ( net-libs/grpc:= )
	nhrp? ( net-dns/c-ares:0= )
	pam? ( sys-libs/pam )
	rpki? ( >=net-libs/rtrlib-0.8.0[ssh] )
	snmp? ( net-analyzer/net-snmp:= )
"
BDEPEND="
	~dev-util/clippy-${PV}
	sys-devel/flex
	app-alternatives/yacc
	doc? ( dev-python/sphinx )
"
DEPEND="
	${COMMON_DEPEND}
	elibc_musl? ( sys-libs/queue-standalone )
	test? ( $(python_gen_cond_dep 'dev-python/pytest[${PYTHON_USEDEP}]') )
"
RDEPEND="
	${COMMON_DEPEND}
	$(python_gen_cond_dep 'dev-python/ipaddr[${PYTHON_USEDEP}]')
	!net-misc/quagga
	sys-apps/util-linux
"

PATCHES=(
	"${FILESDIR}"/${PN}-7.5-ipctl-forwarding.patch
	"${FILESDIR}"/${PN}-8.4.1-logrotate.patch
)

src_prepare() {
	default

	python_fix_shebang tools
	eautoreconf
}

src_configure() {
	local myconf=(
		--disable-static
		--with-pkg-extra-version="-gentoo"
		--enable-configfile-mask=0640
		--enable-logfile-mask=0640
		--prefix="${EPREFIX}"/usr
		--libdir="${EPREFIX}"/usr/lib/frr
		--sbindir="${EPREFIX}"/usr/lib/frr
		--libexecdir="${EPREFIX}"/usr/lib/frr
		--sysconfdir="${EPREFIX}"/etc/frr
		--localstatedir="${EPREFIX}"/run/frr
		--with-moduledir="${EPREFIX}"/usr/lib/frr/modules
		--with-clippy="${BROOT}"/usr/bin/clippy
		--enable-user=frr
		--enable-group=frr
		--enable-vty-group=frr
		--enable-multipath=64
		$(use_enable doc)
		$(use_enable fpm)
		$(use_enable grpc)
		$(use_enable ipv6 ospf6d)
		$(use_enable ipv6 ripngd)
		$(use_enable ipv6 rtadv)
		$(use_enable kernel_linux realms)
		$(use_enable nhrp nhrpd)
		$(usex ospfapi '--enable-ospfclient' '' '' '')
		$(use_enable rpki)
		$(use_enable snmp)
	)

	econf "${myconf[@]}"
}

src_compile() {
	default

	use doc && emake -C doc html
}

src_install() {
	default
	find "${ED}" -name '*.la' -delete || die

	# Install user documentation if asked
	use doc && dodoc -r doc/user/_build/html

	# Create configuration directory with correct permissions
	keepdir /etc/frr
	fowners frr:frr /etc/frr
	fperms 775 /etc/frr

	# Create logs directory with the correct permissions
	keepdir /var/log/frr
	fowners frr:frr /var/log/frr
	fperms 775 /var/log/frr

	# Install the default configuration files
	insinto /etc/frr
	doins tools/etc/frr/vtysh.conf
	doins tools/etc/frr/frr.conf
	doins tools/etc/frr/daemons

	# Fix permissions/owners.
	fowners frr:frr /etc/frr/vtysh.conf
	fowners frr:frr /etc/frr/frr.conf
	fowners frr:frr /etc/frr/daemons
	fperms 640 /etc/frr/vtysh.conf
	fperms 640 /etc/frr/frr.conf
	fperms 640 /etc/frr/daemons

	# Install logrotate configuration
	insinto /etc/logrotate.d
	newins redhat/frr.logrotate frr

	# Install PAM configuration file
	use pam && newpamd "${FILESDIR}"/frr.pam frr

	# Install init scripts
	systemd_dounit tools/frr.service
	newinitd "${FILESDIR}"/frr-openrc-v1 frr

	# Conflict files, installed by net-libs/libsmi, bug #758383
	rm "${ED}"/usr/share/yang/ietf-interfaces.yang || die
}