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

EAPI="5"

inherit flag-o-matic eutils

DESCRIPTION="Use this to make tarballs :)"
HOMEPAGE="https://www.gnu.org/software/tar/"
SRC_URI="mirror://gnu/tar/${P}.tar.bz2
	mirror://gnu-alpha/tar/${P}.tar.bz2"

LICENSE="GPL-3+"
SLOT="0"
KEYWORDS="*"
IUSE="acl elibc_glibc minimal nls selinux static userland_GNU xattr"

RDEPEND="acl? ( virtual/acl )
	selinux? ( sys-libs/libselinux )"
DEPEND="${RDEPEND}
	nls? ( >=sys-devel/gettext-0.10.35 )
	xattr? ( elibc_glibc? ( sys-apps/attr ) )"

PATCHES=(
	"${FILESDIR}/${P}-extract-pathname-bypass-upstream.patch" #598334
	"${FILESDIR}/${P}-add-files.patch"
)

src_prepare() {
	epatch "${PATCHES[@]}"
	epatch_user

	if ! use userland_GNU ; then
		sed -i \
			-e 's:/backup\.sh:/gbackup.sh:' \
			scripts/{backup,dump-remind,restore}.in \
			|| die "sed non-GNU"
	fi
}

src_configure() {
	use static && append-ldflags -static
	FORCE_UNSAFE_CONFIGURE=1 \
	econf \
		--enable-backup-scripts \
		--bindir="${EPREFIX}"/bin \
		--libexecdir="${EPREFIX}"/usr/sbin \
		$(usex userland_GNU "" "--program-prefix=g") \
		$(use_with acl posix-acls) \
		$(use_enable nls) \
		$(use_with selinux) \
		$(use_with xattr xattrs)
}

src_install() {
	default

	local p=$(usex userland_GNU "" "g")
	if [[ -z ${p} ]] ; then
		# a nasty yet required piece of baggage
		exeinto /etc
		doexe "${FILESDIR}"/rmt
	fi

	# autoconf looks for gtar before tar (in configure scripts), hence
	# in Prefix it is important that it is there, otherwise, a gtar from
	# the host system (FreeBSD, Solaris, Darwin) will be found instead
	# of the Prefix provided (GNU) tar
	if use prefix ; then
		dosym tar /bin/gtar
	fi

	mv "${ED}"/usr/sbin/${p}backup{,-tar} || die
	mv "${ED}"/usr/sbin/${p}restore{,-tar} || die

	if use minimal ; then
		find "${ED}"/etc "${ED}"/*bin/ "${ED}"/usr/*bin/ \
			-type f -a '!' '(' -name tar -o -name ${p}tar ')' \
			-delete || die
	fi
}