# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit autotools flag-o-matic linux-info multilib systemd

DESCRIPTION="NFS client and server daemons"
HOMEPAGE="http://linux-nfs.org/"

if [[ "${PV}" = *_rc* ]] ; then
	MY_PV="$(ver_rs 1- -)"
	SRC_URI="http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=snapshot;h=refs/tags/${PN}-${MY_PV};sf=tgz -> ${P}.tar.gz"
	S="${WORKDIR}/${PN}-${PN}-${MY_PV}"
else
	SRC_URI="mirror://sourceforge/nfs/${P}.tar.bz2"
	KEYWORDS="*"
fi

LICENSE="GPL-2"
SLOT="0"
IUSE="caps ipv6 junction kerberos ldap +libmount nfsdcld +nfsidmap +nfsv4 nfsv41 selinux tcpd +uuid"
REQUIRED_USE="kerberos? ( nfsv4 )"
RESTRICT="test" #315573

# kth-krb doesn't provide the right include
# files, and nfs-utils doesn't build against heimdal either,
# so don't depend on virtual/krb.
# (04 Feb 2005 agriffis)
DEPEND="
	>=dev-db/sqlite-3.3
	dev-libs/libxml2
	net-libs/libtirpc:=
	>=net-nds/rpcbind-0.2.4
	|| (
		sys-fs/e2fsprogs
		sys-libs/e2fsprogs-libs
	)
	caps? ( sys-libs/libcap )
	ldap? ( net-nds/openldap )
	libmount? ( sys-apps/util-linux )
	nfsv4? (
		dev-libs/libevent:=
		>=sys-apps/keyutils-1.5.9:=
		kerberos? (
			>=net-libs/libtirpc-0.2.4-r1[kerberos]
			app-crypt/mit-krb5
		)
	)
	nfsv41? (
		sys-fs/lvm2
	)
	tcpd? ( sys-apps/tcp-wrappers )
	uuid? ( sys-apps/util-linux )"
RDEPEND="${DEPEND}
	!net-libs/libnfsidmap
	!net-nds/portmap
	!<sys-apps/openrc-0.13.9
	selinux? (
		sec-policy/selinux-rpc
		sec-policy/selinux-rpcbind
	)
"
BDEPEND="
	net-libs/rpcsvc-proto
	virtual/pkgconfig
"

PATCHES=(
	"${FILESDIR}"/${PN}-2.4.2-no-werror.patch
	"${FILESDIR}"/${PN}-2.4.2-Ensure-consistent-struct-stat.patch
)

pkg_setup() {
	linux-info_pkg_setup
	if use nfsv4 && ! use nfsdcld && linux_config_exists && ! linux_chkconfig_present CRYPTO_MD5 ; then
		ewarn "Your NFS server will be unable to track clients across server restarts!"
		ewarn "Please enable the \"${HILITE}nfsdcld${NORMAL}\" USE flag to install the nfsdcltrack usermode"
		ewarn "helper upcall program, or enable ${HILITE}CONFIG_CRYPTO_MD5${NORMAL} in your kernel to"
		ewarn "support the legacy, in-kernel client tracker."
	fi
}

src_prepare() {
	default

	sed \
		-e "/^sbindir/s:= := \"${EPREFIX}\":g" \
		-i utils/*/Makefile.am || die

	eautoreconf
}

src_configure() {
	export libsqlite3_cv_is_recent=yes # Our DEPEND forces this.
	export ac_cv_header_keyutils_h=$(usex nfsidmap)
	local myeconfargs=(
		--with-statedir="${EPREFIX}"/var/lib/nfs
		--enable-tirpc
		--with-tirpcinclude="${EPREFIX}"/usr/include/tirpc/
		--with-pluginpath="${EPREFIX}"/usr/$(get_libdir)/libnfsidmap
		--with-rpcgen
		--with-systemd="$(systemd_get_systemunitdir)"
		--without-gssglue
		$(use_enable caps)
		$(use_enable ipv6)
		$(use_enable junction)
		$(use_enable kerberos gss)
		$(use_enable kerberos svcgss)
		$(use_enable ldap)
		$(use_enable libmount libmount-mount)
		$(use_enable nfsdcld nfsdcltrack)
		$(use_enable nfsv4)
		$(use_enable nfsv41)
		$(use_enable uuid)
		$(use_with tcpd tcp-wrappers)
	)
	econf "${myeconfargs[@]}"
}

src_compile() {
	# remove compiled files bundled in the tarball
	emake clean
	default
}

src_install() {
	default
	rm linux-nfs/Makefile* || die
	dodoc -r linux-nfs README

	# Don't overwrite existing xtab/etab, install the original
	# versions somewhere safe...  more info in pkg_postinst
	# these empty directories are not carried into image/var
	keepdir /var/lib/nfs/{,sm,sm.bak}

	# tmpfiles stuff to make sure var/lib/nfs and its 
        # subdirs are installed
	insinto /usr/lib/tmpfiles.d
	newins "${FILESDIR}/tmpfiles.d" "nfs.conf"

	mv "${ED}"/var/lib "${ED}"/usr/$(get_libdir) || die

	# Install some client-side binaries in /sbin
	dodir /sbin
	mv "${ED}"/usr/sbin/rpc.statd "${ED}"/sbin/ || die

	if use nfsv4 && use nfsidmap ; then
		insinto /etc
		doins support/nfsidmap/idmapd.conf

		# Install a config file for idmappers in newer kernels. #415625
		insinto /etc/request-key.d
		echo 'create id_resolver * * /usr/sbin/nfsidmap -t 600 %k %d' > id_resolver.conf
		doins id_resolver.conf
	fi

	insinto /etc
	doins "${FILESDIR}"/exports
	keepdir /etc/exports.d

	local f list=() opt_need=""
	if use nfsv4 ; then
		opt_need="rpc.idmapd"
		list+=( rpc.idmapd rpc.pipefs )
		use kerberos && list+=( rpc.gssd rpc.svcgssd )
	fi
	for f in nfs nfsclient rpc.statd "${list[@]}" ; do
		newinitd "${FILESDIR}"/${f}.initd ${f}
	done
	newinitd "${FILESDIR}"/nfsmount.initd-1.3.1 nfsmount # Nuke after 2015/08/01
	for f in nfs nfsclient ; do
		newconfd "${FILESDIR}"/${f}.confd ${f}
	done
	sed -i \
		-e "/^NFS_NEEDED_SERVICES=/s:=.*:=\"${opt_need}\":" \
		"${ED}"/etc/conf.d/nfs || die #234132

	local systemd_systemunitdir="$(systemd_get_systemunitdir)"
	sed -i \
		-e 's:/usr/sbin/rpc.statd:/sbin/rpc.statd:' \
		"${ED}${systemd_systemunitdir}"/* || die
	
	# keepdir /var/lib/nfs #368505
	# keepdir /var/lib/nfs/v4recovery #603628
	
}

pkg_postinst() {
	# Install default xtab and friends if there's none existing.  In
	# src_install we put them in /usr/lib/nfs for safe-keeping, but
	# the daemons actually use the files in /var/lib/nfs.  #30486
	local f
	for f in "${EROOT}"/usr/$(get_libdir)/lib/nfs/*; do
		[[ -e ${EROOT}/var/lib/nfs/${f} ]] && continue
		einfo "Copying default ${f} from ${EPREFIX}/usr/$(get_libdir)/lib/nfs to "${EPREFIX}"/var/lib/nfs"
		cp -pPR "${f}" "${EROOT}"/var/lib/nfs/
	done

	if systemd_is_booted; then
		for v in ${REPLACING_VERSIONS}; do
			if ver_test "${v}" -lt 1.3.0; then
				ewarn "We have switched to upstream systemd unit files. Since"
				ewarn "they got renamed, you should probably enable the new ones."
				ewarn "You can run 'equery files nfs-utils | grep systemd'"
				ewarn "to know what services you need to enable now."
			fi
		done
	else
		ewarn "If you use OpenRC, the nfsmount service has been replaced with nfsclient."
		ewarn "If you were using nfsmount, please add nfsclient and netmount to the"
		ewarn "same runlevel as nfsmount."
	fi
}