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

EAPI=3

inherit eutils toolchain-funcs multilib prefix flag-o-matic user

# last part in e.g. 1.12.14.1704
PVER=1709

DESCRIPTION="Baselayout for Gentoo Prefix installs"
HOMEPAGE="https://prefix.gentoo.org/"
SRC_URI="https://dev.gentoo.org/~grobian/distfiles/${P}.${PVER}.tar.bz2"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~ppc-aix ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~m68k-mint ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris ~x86-winnt"
IUSE="prefix-chaining"
DEPEND=">=sys-apps/portage-2.2.01"
RDEPEND=">=sys-libs/readline-5.0-r1
	>=app-shells/bash-3.1_p7
	>=sys-apps/coreutils-5.2.1
	kernel_Darwin? ( sys-process/pidof-bsd )
	kernel_FreeBSD? ( sys-process/pidof-bsd )"

S=${WORKDIR}/${P}.${PVER}

src_prepare() {
	if use prefix-chaining; then
		epatch "${S}"/baselayout-${PV}-prefix-chaining.patch

		# need to set the PKG_CONFIG_PATH globally for this prefix, when
		# chaining is enabled, since pkg-config may not be installed locally,
		# but still .pc files should be found for all RDEPENDable prefixes in
		# the chain.
		echo "PKG_CONFIG_PATH=\"${EPREFIX}/usr/lib/pkgconfig:${EPREFIX}/usr/share/pkgconfig\"" >> "${S}"/etc/env.d/00basic
	fi

	cd "${S}"
	eprefixify \
		etc/env.d/00basic \
		etc/profile

	# add the host OS MANPATH
	echo 'MANPATH="/usr/share/man"' > etc/env.d/99basic || die "can't make file"

	# avoid a re-automake run
	touch -r gnulib/configure.ac gnulib/Makefile.in gnulib/aclocal.m4 || die
}

src_configure() {
	cd gnulib || die
	default
}

src_compile() {
	# build gnulib first
	pushd gnulib > /dev/null || die
	emake || die "Cannot build gnulib"
	popd > /dev/null

	# use gnulib (buildsystem doesn't respect cppflags)
	append-cflags -I../gnulib -I../gnulib/gllib
	append-ldflags -L../gnulib/gllib
	append-libs gnu

	local libdir="lib"

	[[ ${SYMLINK_LIB} == "yes" ]] && libdir=$(get_abi_LIBDIR "${DEFAULT_ABI}")
}

src_install() {
	local dir libdirs libdirs_env rcscripts_dir

	dodir /etc
	dodir /etc/env.d
	dodir /etc/init.d			# .keep file might mess up init.d stuff

	libdirs=$(get_all_libdirs)
	: ${libdirs:=lib}	# it isn't that we don't trust multilib.eclass...

	rcscripts_dir="/lib/rcscripts"

	for dir in ${libdirs}; do
		libdirs_env=${libdirs_env:+$libdirs_env:}/${dir}:/usr/${dir}:/usr/local/${dir}
		[[ ${dir} == "lib" && ${SYMLINK_LIB} == "yes" ]] && continue
		dodir /"${dir}"
		dodir /usr/"${dir}"
		dodir /usr/local/"${dir}"
	done

	# Ugly compatibility with stupid ebuilds and old profiles symlinks
	if [[ ${SYMLINK_LIB} == "yes" ]] ; then
		rm -r "${ED}"/{lib,usr/lib,usr/local/lib} &> /dev/null
		dosym $(get_abi_LIBDIR ${DEFAULT_ABI}) /lib
		dosym $(get_abi_LIBDIR ${DEFAULT_ABI}) /usr/lib
		dosym $(get_abi_LIBDIR ${DEFAULT_ABI}) /usr/local/lib
	fi

	# FHS compatibility symlinks stuff
	dosym /var/tmp /usr/tmp

	# rc-scripts version for testing of features that *should* be present
	echo "Gentoo Prefix Base System version ${PV}" > ${ED}/etc/gentoo-release

	# get the basic stuff in there
	doenvd "${S}"/etc/env.d/* || die "doenvd"

	# copy the profile
	cp "${S}"/etc/profile "${ED}"/etc/profile

	# Setup files in /sbin
	#
	cd "${S}"/sbin
	into /
	# These moved from /etc/init.d/ to /sbin to help newb systems
	# from breaking

	#
	# Install baselayout utilities
	#
	local libdir="lib"
	[[ ${SYMLINK_LIB} == "yes" ]] && libdir=$(get_abi_LIBDIR "${DEFAULT_ABI}")
}

pkg_postinst() {
	if [[ ${EUID} == 0 ]] ; then
		# setup portage user, such that things that require root privs
		# don't fail, bug #321623
		enewgroup portage 250
		enewuser portage 250 -1 "${EPREFIX}"/var/tmp/portage portage
	fi

	# This is also written in src_install (so it's in CONTENTS), but
	# write it here so that the new version is immediately in the file
	# (without waiting for the user to do etc-update)
	rm -f "${EROOT}"/etc/._cfg????_gentoo-release
	echo "Gentoo Prefix Base System version ${PV}" > "${EROOT}"/etc/gentoo-release

	echo
	einfo "Please be sure to update all pending '._cfg*' files in /etc,"
	einfo "else things might break!  You can use 'etc-update'"
	einfo "to accomplish this:"
	einfo
	einfo "  # etc-update"
	echo
}