setup.py

# Copyright 2024 ETH Zurich and University of Bologna.
# Licensed under the Apache License, Version 2.0, see LICENSE for details.
# SPDX-License-Identifier: Apache-2.0
#
# Author: Luca Colagrande <colluca@iis.ee.ethz.ch>
import os
import setuptools
from setuptools.command.build import build
import subprocess
from pathlib import Path

class CMakeBuild(build):

	def run(self):
		# Required to generate "flexfloat_config.h"
		builddir = Path(__file__).parent / 'flexfloat/build'
		builddir.mkdir(parents=True, exist_ok=True)
		subprocess.run(['pwd'], cwd=builddir, check=True)
		subprocess.run(['ls', '..'], cwd=builddir, check=True)
		# flexfloat's CMakeLists.txt requires CMake < 3.5, unsupported by
		# recent CMake. Set via env (not -D) so it also propagates to the
		# nested cmake invocation used to fetch googletest.
		env = {**os.environ, 'CMAKE_POLICY_VERSION_MINIMUM': '3.5'}
		subprocess.run(['cmake', '..'], cwd=builddir, check=True, env=env)


setuptools.setup(
	packages=setuptools.find_packages(),
	setup_requires=['cffi'],
	install_requires=['cffi'],
	cffi_modules=["pyflexfloat/build_flexfloat_ffi.py:ffibuilder"],
	cmdclass={'build': CMakeBuild}
)