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

EAPI=5

PYTHON_COMPAT=(
	pypy
	python3_4 python3_5 python3_6
	python2_7
)
PYTHON_REQ_USE='bzip2(+),threads(+)'

inherit distutils-r1 multilib

DESCRIPTION="Portage is the package management and distribution system for Gentoo"
HOMEPAGE="https://wiki.gentoo.org/wiki/Project:Portage"

LICENSE="GPL-2"
KEYWORDS="alpha amd64 arm arm64 hppa ia64 ~m68k ~mips ppc ppc64 ~s390 ~sh sparc x86 ~amd64-fbsd ~sparc-fbsd ~x86-fbsd"
SLOT="0"
IUSE="build doc epydoc +ipc linguas_ru +native-extensions selinux xattr"

DEPEND="!build? ( $(python_gen_impl_dep 'ssl(+)') )
	>=app-arch/tar-1.27
	dev-lang/python-exec:2
	>=sys-apps/sed-4.0.5 sys-devel/patch
	doc? ( app-text/xmlto ~app-text/docbook-xml-dtd-4.4 )
	epydoc? ( >=dev-python/epydoc-2.0[$(python_gen_usedep 'python2*')] )"
# Require sandbox-2.2 for bug #288863.
# For xattr, we can spawn getfattr and setfattr from sys-apps/attr, but that's
# quite slow, so it's not considered in the dependencies as an alternative to
# to python-3.3 / pyxattr. Also, xattr support is only tested with Linux, so
# for now, don't pull in xattr deps for other kernels.
# For whirlpool hash, require python[ssl] (bug #425046).
# For compgen, require bash[readline] (bug #445576).
RDEPEND="
	>=app-arch/tar-1.27
	dev-lang/python-exec:2
	!build? (
		>=sys-apps/sed-4.0.5
		app-shells/bash:0[readline]
		>=app-admin/eselect-1.2
	)
	elibc_FreeBSD? ( sys-freebsd/freebsd-bin )
	elibc_glibc? ( >=sys-apps/sandbox-2.2 )
	elibc_musl? ( >=sys-apps/sandbox-2.2 )
	elibc_uclibc? ( >=sys-apps/sandbox-2.2 )
	>=app-misc/pax-utils-0.1.17
	selinux? ( >=sys-libs/libselinux-2.0.94[python,${PYTHON_USEDEP}] )
	xattr? ( kernel_linux? (
		>=sys-apps/install-xattr-0.3
		$(python_gen_cond_dep 'dev-python/pyxattr[${PYTHON_USEDEP}]' \
			python2_7 pypy)
	) )
	!<app-admin/logrotate-3.8.0"
PDEPEND="
	!build? (
		>=net-misc/rsync-2.6.4
		userland_GNU? ( >=sys-apps/coreutils-6.4 )
	)"
# coreutils-6.4 rdep is for date format in emerge-webrsync #164532
# NOTE: FEATURES=installsources requires debugedit and rsync

REQUIRED_USE="epydoc? ( $(python_gen_useflags 'python2*') )"

SRC_ARCHIVES="https://dev.gentoo.org/~dolsen/releases/portage"

prefix_src_archives() {
	local x y
	for x in ${@}; do
		for y in ${SRC_ARCHIVES}; do
			echo ${y}/${x}
		done
	done
}

TARBALL_PV=${PV}
SRC_URI="mirror://gentoo/${PN}-${TARBALL_PV}.tar.bz2
	$(prefix_src_archives ${PN}-${TARBALL_PV}.tar.bz2)"

pkg_setup() {
	use epydoc && DISTUTILS_ALL_SUBPHASE_IMPLS=( python2.7 )
}

python_prepare_all() {
	distutils-r1_python_prepare_all

	if use native-extensions; then
		printf "[build_ext]\nportage-ext-modules=true\n" >> \
			setup.cfg || die
	fi

	if ! use ipc ; then
		einfo "Disabling ipc..."
		sed -e "s:_enable_ipc_daemon = True:_enable_ipc_daemon = False:" \
			-i pym/_emerge/AbstractEbuildProcess.py || \
			die "failed to patch AbstractEbuildProcess.py"
	fi

	if use xattr && use kernel_linux ; then
		einfo "Adding FEATURES=xattr to make.globals ..."
		echo -e '\nFEATURES="${FEATURES} xattr"' >> cnf/make.globals \
			|| die "failed to append to make.globals"
	fi

	if [[ -n ${EPREFIX} ]] ; then
		einfo "Setting portage.const.EPREFIX ..."
		sed -e "s|^\(SANDBOX_BINARY[[:space:]]*=[[:space:]]*\"\)\(/usr/bin/sandbox\"\)|\\1${EPREFIX}\\2|" \
			-e "s|^\(FAKEROOT_BINARY[[:space:]]*=[[:space:]]*\"\)\(/usr/bin/fakeroot\"\)|\\1${EPREFIX}\\2|" \
			-e "s|^\(BASH_BINARY[[:space:]]*=[[:space:]]*\"\)\(/bin/bash\"\)|\\1${EPREFIX}\\2|" \
			-e "s|^\(MOVE_BINARY[[:space:]]*=[[:space:]]*\"\)\(/bin/mv\"\)|\\1${EPREFIX}\\2|" \
			-e "s|^\(PRELINK_BINARY[[:space:]]*=[[:space:]]*\"\)\(/usr/sbin/prelink\"\)|\\1${EPREFIX}\\2|" \
			-e "s|^\(EPREFIX[[:space:]]*=[[:space:]]*\"\).*|\\1${EPREFIX}\"|" \
			-i pym/portage/const.py || \
			die "Failed to patch portage.const.EPREFIX"

		einfo "Prefixing shebangs ..."
		while read -r -d $'\0' ; do
			local shebang=$(head -n1 "$REPLY")
			if [[ ${shebang} == "#!"* && ! ${shebang} == "#!${EPREFIX}/"* ]] ; then
				sed -i -e "1s:.*:#!${EPREFIX}${shebang:2}:" "$REPLY" || \
					die "sed failed"
			fi
		done < <(find . -type f -print0)

		einfo "Adjusting make.globals ..."
		sed -e "s|\(/usr/portage\)|${EPREFIX}\\1|" \
			-e "s|^\(PORTAGE_TMPDIR=\"\)\(/var/tmp\"\)|\\1${EPREFIX}\\2|" \
			-i cnf/make.globals || die "sed failed"

		einfo "Adjusting repos.conf ..."
		sed -e "s|^\(main-repo = \).*|\\1gentoo_prefix|" \
			-e "s|^\\[gentoo\\]|[gentoo_prefix]|" \
			-e "s|^\(location = \)\(/usr/portage\)|\\1${EPREFIX}\\2|" \
			-e "s|^\(sync-uri = \).*|\\1rsync://rsync.prefix.bitzolder.nl/gentoo-portage-prefix|" \
			-i cnf/repos.conf || die "sed failed"

		einfo "Adding FEATURES=force-prefix to make.globals ..."
		echo -e '\nFEATURES="${FEATURES} force-prefix"' >> cnf/make.globals \
			|| die "failed to append to make.globals"
	fi

	cd "${S}/cnf" || die
	if [ -f "make.conf.example.${ARCH}".diff ]; then
		patch make.conf.example "make.conf.example.${ARCH}".diff || \
			die "Failed to patch make.conf.example"
	else
		eerror ""
		eerror "Portage does not have an arch-specific configuration for this arch."
		eerror "Please notify the arch maintainer about this issue. Using generic."
		eerror ""
	fi
}

python_compile_all() {
	local targets=()
	use doc && targets+=( docbook )
	use epydoc && targets+=( epydoc )

	if [[ ${targets[@]} ]]; then
		esetup.py "${targets[@]}"
	fi
}

python_test() {
	esetup.py test
}

python_install() {
	# Install sbin scripts to bindir for python-exec linking
	# they will be relocated in pkg_preinst()
	distutils-r1_python_install \
		--system-prefix="${EPREFIX}/usr" \
		--bindir="$(python_get_scriptdir)" \
		--docdir="${EPREFIX}/usr/share/doc/${PF}" \
		--htmldir="${EPREFIX}/usr/share/doc/${PF}/html" \
		--portage-bindir="${EPREFIX}/usr/lib/portage/${EPYTHON}" \
		--sbindir="$(python_get_scriptdir)" \
		--sysconfdir="${EPREFIX}/etc" \
		"${@}"
}

python_install_all() {
	distutils-r1_python_install_all

	local targets=()
	use doc && targets+=( install_docbook )
	use epydoc && targets+=( install_epydoc )

	# install docs
	if [[ ${targets[@]} ]]; then
		esetup.py "${targets[@]}"
	fi

	# Due to distutils/python-exec limitations
	# these must be installed to /usr/bin.
	local sbin_relocations='archive-conf dispatch-conf emaint env-update etc-update fixpackages regenworld'
	einfo "Moving admin scripts to the correct directory"
	dodir /usr/sbin
	for target in ${sbin_relocations}; do
		einfo "Moving /usr/bin/${target} to /usr/sbin/${target}"
		mv "${ED}usr/bin/${target}" "${ED}usr/sbin/${target}" || die "sbin scripts move failed!"
	done
}

pkg_preinst() {
	# comment out sanity test until it is fixed to work
	# with the new PORTAGE_PYM_PATH
	#if [[ $ROOT == / ]] ; then
		## Run some minimal tests as a sanity check.
		#local test_runner=$(find "${ED}" -name runTests)
		#if [[ -n $test_runner && -x $test_runner ]] ; then
			#einfo "Running preinst sanity tests..."
			#"$test_runner" || die "preinst sanity tests failed"
		#fi
	#fi

	# elog dir must exist to avoid logrotate error for bug #415911.
	# This code runs in preinst in order to bypass the mapping of
	# portage:portage to root:root which happens after src_install.
	keepdir /var/log/portage/elog
	# This is allowed to fail if the user/group are invalid for prefix users.
	if chown portage:portage "${ED}"var/log/portage{,/elog} 2>/dev/null ; then
		chmod g+s,ug+rwx "${ED}"var/log/portage{,/elog}
	fi

	if has_version ">=${CATEGORY}/${PN}-2.3.1" && \
		has_version "<${CATEGORY}/${PN}-2.3.3"; then
		SYNC_DEPTH_UPGRADE=true
	else
		SYNC_DEPTH_UPGRADE=false
	fi
}

get_ownership() {
	case ${USERLAND} in
		BSD)
			stat -f '%Su:%Sg' "${1}"
			;;
		*)
			stat -c '%U:%G' "${1}"
			;;
	esac
}

new_config_protect() {
	# Generate a ._cfg file even if the target file
	# does not exist, ensuring that the user will
	# notice the config change.
	local basename=${1##*/}
	local dirname=${1%/*}
	local i=0
	while true ; do
		local filename=$(
			echo -n "${dirname}/._cfg"
			printf "%04d" ${i}
			echo -n "_${basename}"
		)
		[[ -e ${filename} ]] || break
		(( i++ ))
	done
	echo "${filename}"
}

pkg_postinst() {
	if ${SYNC_DEPTH_UPGRADE}; then
		ewarn "Please note that this release no longer respects sync-depth for"
		ewarn "git repositories.  There have been too many problems and"
		ewarn "performance issues.  See bugs 552814, 559008"
	fi
	einfo ""
	einfo "This release of portage NO LONGER contains the repoman code base."
	einfo "Repoman has its own ebuild and release package."
	einfo "For repoman functionality please emerge app-portage/repoman"
	einfo "Please report any bugs you may encounter."
	einfo ""
}