dev-python/symengine: fix build with >=setuptools-61; wheel duplication

Closes: https://bugs.gentoo.org/836599
Thanks-to: Michał Górny <mgorny@gentoo.org>
Signed-off-by: Sam James <sam@gentoo.org>

3 files changed, 157 insertions, 0 deletions

diff --git a/dev-python/symengine/files/symengine-0.9.2-cmake-setuptools.patch b/dev-python/symengine/files/symengine-0.9.2-cmake-setuptools.patch
new file mode 100644
index 000000000000..3b930c998d99
--- /dev/null
+++ b/dev-python/symengine/files/symengine-0.9.2-cmake-setuptools.patch
@@ -0,0 +1,84 @@
+https://github.com/symengine/symengine.py/pull/402
+https://bugs.gentoo.org/836599
+
+From bc84086d60de038eb381c9e37c8b552a6c246ab5 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
+Date: Mon, 2 May 2022 09:24:45 +0200
+Subject: [PATCH] Fix build to avoid duplicate files in wheel
+
+Fix the build system to package pure Python files
+via distutils/setuptools, and limit CMake to installing the compiled
+extension.
+
+The prior logic has installed some of the .py files both via setuptools
+and via CMake, to different build directories.  As a result,
+the resulting wheel contained duplicate files, e.g.:
+
+         2170  05-02-2022 07:08   symengine/__init__.py
+         2170  05-02-2022 07:08   symengine-0.9.2.data/purelib/symengine/__init__.py
+
+Duplicate files cause the wheel to be rejected by the installer package.
+
+After the change, a correct wheel is generated.  Installation works
+both via PEP517/wheel and via legacy `setup.py install`.
+--- a/setup.py
++++ b/setup.py
+@@ -226,7 +226,7 @@ def finalize_options(self):
+       url="https://github.com/symengine/symengine.py",
+       python_requires='>=3.7,<4',
+       zip_safe=False,
+-      packages=['symengine'],
++      packages=['symengine', 'symengine.lib', 'symengine.tests'],
+       cmdclass = cmdclass,
+       classifiers=[
+         'License :: OSI Approved :: MIT License',
+--- a/symengine/CMakeLists.txt
++++ b/symengine/CMakeLists.txt
+@@ -1,7 +1 @@
+ add_subdirectory(lib)
+-add_subdirectory(tests)
+-
+-set(PY_PATH ${PYTHON_INSTALL_PATH}/symengine)
+-install(FILES __init__.py utilities.py sympy_compat.py functions.py printing.py
+-    DESTINATION ${PY_PATH}
+-    )
+--- a/symengine/lib/CMakeLists.txt
++++ b/symengine/lib/CMakeLists.txt
+@@ -28,7 +28,7 @@ install(TARGETS symengine_wrapper
+             ARCHIVE DESTINATION ${PY_PATH}
+             LIBRARY DESTINATION ${PY_PATH}
+         )
+-install(FILES __init__.py
++install(FILES
+     ${CMAKE_CURRENT_BINARY_DIR}/config.pxi
+     symengine.pxd
+     symengine_wrapper.pxd
+--- a/symengine/tests/CMakeLists.txt
++++ /dev/null
+@@ -1,25 +0,0 @@
+-set(PY_PATH ${PYTHON_INSTALL_PATH}/symengine/tests)
+-install(FILES __init__.py
+-    test_arit.py
+-    test_dict_basic.py
+-    test_eval.py
+-    test_expr.py
+-    test_functions.py
+-    test_number.py
+-    test_matrices.py
+-    test_ntheory.py
+-    test_printing.py
+-    test_sage.py
+-    test_series_expansion.py
+-    test_sets.py
+-    test_solve.py
+-    test_subs.py
+-    test_symbol.py
+-    test_sympify.py
+-    test_sympy_conv.py
+-    test_var.py
+-    test_lambdify.py
+-    test_sympy_compat.py
+-    test_logic.py
+-    DESTINATION ${PY_PATH}
+-    )
+
diff --git a/dev-python/symengine/files/symengine-0.9.2-setuptools-61.patch b/dev-python/symengine/files/symengine-0.9.2-setuptools-61.patch
new file mode 100644
index 000000000000..a8fad4868110
--- /dev/null
+++ b/dev-python/symengine/files/symengine-0.9.2-setuptools-61.patch
@@ -0,0 +1,17 @@
+https://github.com/symengine/symengine.py/commit/987e665e71cf92d1b021d7d573a1b9733408eecf
+https://bugs.gentoo.org/836599
+
+From: Isuru Fernando <isuruf@gmail.com>
+Date: Sat, 2 Apr 2022 15:43:00 -0500
+Subject: [PATCH] Fix for latest setuptools
+
+--- a/setup.py
++++ b/setup.py
+@@ -226,6 +226,7 @@ def finalize_options(self):
+       url="https://github.com/symengine/symengine.py",
+       python_requires='>=3.7,<4',
+       zip_safe=False,
++      packages=['symengine'],
+       cmdclass = cmdclass,
+       classifiers=[
+         'License :: OSI Approved :: MIT License',
diff --git a/dev-python/symengine/symengine-0.9.2-r1.ebuild b/dev-python/symengine/symengine-0.9.2-r1.ebuild
new file mode 100644
index 000000000000..15e6dd597f46
--- /dev/null
+++ b/dev-python/symengine/symengine-0.9.2-r1.ebuild
@@ -0,0 +1,56 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{8..10} )
+
+inherit distutils-r1
+
+MY_P=${PN}.py-${PV}
+DESCRIPTION="Python wrappers to the symengine C++ library"
+HOMEPAGE="https://github.com/symengine/symengine.py/"
+SRC_URI="
+	https://github.com/symengine/symengine.py/archive/v${PV}.tar.gz
+		-> ${MY_P}.tar.gz"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~riscv ~x86"
+
+BDEPEND="
+	dev-util/cmake
+	dev-python/cython[${PYTHON_USEDEP}]
+	test? (
+		dev-python/sympy[${PYTHON_USEDEP}]
+	)
+"
+# See bug #786582 for symengine constraint
+# See also https://github.com/symengine/symengine.py/blob/master/symengine_version.txt
+RDEPEND="
+	dev-python/numpy[${PYTHON_USEDEP}]
+	>=sci-libs/symengine-$(ver_cut 1-2):=
+"
+DEPEND="${RDEPEND}"
+
+# the C library installs the same docs
+DOCS=()
+
+PATCHES=(
+	"${FILESDIR}"/${P}-setuptools-61.patch
+	"${FILESDIR}"/${PN}-0.9.2-cmake-setuptools.patch
+)
+
+distutils_enable_tests pytest
+
+python_test() {
+	cd "${BUILD_DIR}/install$(python_get_sitedir)" || die
+	epytest
+}
+
+python_install() {
+	distutils-r1_python_install
+	python_optimize
+}