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

EAPI=7

PYTHON_COMPAT=( python3_{6,7,8} )

inherit cmake distutils-r1

DESCRIPTION="AST-based Python refactoring library"
HOMEPAGE="https://pybind11.readthedocs.io/en/stable/"
SRC_URI="https://github.com/pybind/pybind11/archive/v${PV}.tar.gz -> ${P}.tar.gz"

LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x86-macos"
IUSE="doc"

DEPEND="
	${PYTHON_DEPS}
	doc? (
		dev-python/breathe[${PYTHON_USEDEP}]
		dev-python/sphinx[${PYTHON_USEDEP}]
	)
"
RDEPEND="
	${PYTHON_DEPS}
	dev-cpp/eigen:3
"

REQUIRED_USE="${PYTHON_REQUIRED_USE}"

DOCS=( README.md CONTRIBUTING.md ISSUE_TEMPLATE.md )

pkg_setup() {
	use doc && DISTUTILS_ALL_SUBPHASE_IMPLS=( 'python3_6' )
}

python_prepare_all() {
	export PYBIND11_USE_CMAKE=1
	cmake_src_prepare
	distutils-r1_python_prepare_all
}

python_configure_all() {
	local mycmakeargs=(
		-DPYBIND11_INSTALL=ON
		-DPYBIND11_TEST=OFF
	)

	cmake_src_configure
}

python_compile_all() {
	# No compilation has to be done by cmake

	# documentation is not covered by cmake, but has it's own makefile
	# using sphinx
	if use doc; then
		python_setup 'python3_6'
		pushd "${S}"/docs || die
		emake info man html
		popd || die
	fi
}

python_install_all() {
	cmake_src_install
	if use doc; then
		python_setup
		local HTML_DOCS=( "${S}"/docs/.build/html/. )

		# install man and info pages
		doman "${S}"/docs/.build/man/pybind11.1
		doinfo "${S}"/docs/.build/texinfo/pybind11.info
	fi

	distutils-r1_python_install_all
}