# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI=6

PYTHON_COMPAT=( python2_7 python3_{4,5,6} )
PYTHON_REQ_USE="threads(+)"

inherit distutils-r1 flag-o-matic toolchain-funcs elisp-common

MY_PN="Cython"
MY_P="${MY_PN}-${PV/_/}"

DESCRIPTION="A Python to C compiler"
HOMEPAGE="http://cython.org https://pypi.org/project/Cython/"
SRC_URI="mirror://pypi/${MY_PN:0:1}/${MY_PN}/${MY_P}.tar.gz"

LICENSE="Apache-2.0"
SLOT="0"
KEYWORDS="*"

IUSE="doc emacs test"

RDEPEND="
	emacs? ( virtual/emacs )
"
# On testing, setuptools invokes an error in running the testsuite cited in a number of recent bugs
# spanning several packages. This bug has been fixed in the recent release of version 9.1
DEPEND="${RDEPEND}
	>=dev-python/setuptools-9.1[${PYTHON_USEDEP}]
	doc? ( dev-python/sphinx[${PYTHON_USEDEP}] )
	test? ( dev-python/numpy[${PYTHON_USEDEP}] )"

SITEFILE=50cython-gentoo.el
S="${WORKDIR}/${MY_PN}-${PV%_*}"

PATCHES=(
	"${FILESDIR}"/0.25.2-test-cpdef_enums-L-suffix.patch
)

python_compile() {
	if ! python_is_python3; then
		local CFLAGS="${CFLAGS}"
		local CXXFLAGS="${CXXFLAGS}"
		append-flags -fno-strict-aliasing
	fi

	# Python gets confused when it is in sys.path before build.
	local PYTHONPATH=
	export PYTHONPATH

	distutils-r1_python_compile
}

python_compile_all() {
	use emacs && elisp-compile Tools/cython-mode.el

	use doc && unset XDG_CONFIG_HOME && emake -C docs html
}

python_test() {
	tc-export CC
	"${PYTHON}" runtests.py -vv --work-dir "${BUILD_DIR}"/tests \
		|| die "Tests fail with ${EPYTHON}"
}

python_install_all() {
	local DOCS=( CHANGES.rst README.txt ToDo.txt USAGE.txt )
	use doc && local HTML_DOCS=( docs/build/html/. )
	distutils-r1_python_install_all

	if use emacs; then
		elisp-install ${PN} Tools/cython-mode.*
		elisp-site-file-install "${FILESDIR}/${SITEFILE}"
	fi
}

pkg_postinst() {
	use emacs && elisp-site-regen
}

pkg_postrm() {
	use emacs && elisp-site-regen
}