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#!/usr/bin/env python
# coding: utf-8
# Copyright (c) 2016 The Pybind Development Team, All rights reserved.
# Setup.py that calls CMake. Largely taken from https://github.com/pybind/cmake_example/
import os
import re
import subprocess
import sys
from setuptools import Extension, setup
from setuptools.command.build_ext import build_ext
# A CMakeExtension needs a sourcedir instead of a file list.
# The name must be the _single_ output extension from the CMake build.
# If you need multiple extensions, see scikit-build.
class CMakeExtension(Extension):
def __init__(self, name, sourcedir=""):
Extension.__init__(self, name, sources=[])
self.sourcedir = os.path.abspath(sourcedir)
class CMakeBuild(build_ext):
def build_extension(self, ext):
extdir = os.path.abspath(
os.path.dirname(self.get_ext_fullpath(ext.name))
)
# required for auto-detection & inclusion of auxiliary "native" libs
if not extdir.endswith(os.path.sep):
extdir += os.path.sep
debug = (
int(os.environ.get("DEBUG", 0))
if self.debug is None
else self.debug
)
cfg = "Debug" if debug else "Release"
# CMake lets you override the generator - we need to check this.
# Can be set with Conda-Build, for example.
cmake_generator = os.environ.get("CMAKE_GENERATOR", "")
# Set Python_EXECUTABLE instead if you use PYBIND11_FINDPYTHON
cmake_args = [
f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={extdir}",
f"-DPYTHON_EXECUTABLE={sys.executable}",
f"-DCMAKE_BUILD_TYPE={cfg}", # not used on MSVC, but no harm
]
build_args = []
# Adding CMake arguments set as environment variable
# (needed e.g. to build for ARM OSx on conda-forge)
if "CMAKE_ARGS" in os.environ:
cmake_args += [
item for item in os.environ["CMAKE_ARGS"].split(" ") if item
]
cmake_args += ["-DBUILD_PYTHON_BINDINGS=On"]
# Using Ninja-build since it a) is available as a wheel and b)
# multithreads automatically. MSVC would require all variables be
# exported for Ninja to pick it up, which is a little tricky to do.
# Users can override the generator with CMAKE_GENERATOR in CMake
# 3.15+.
if not cmake_generator or cmake_generator == "Ninja":
try:
import ninja # noqa: F401
ninja_executable_path = os.path.join(ninja.BIN_DIR, "ninja")
cmake_args += [
"-GNinja",
f"-DCMAKE_MAKE_PROGRAM:FILEPATH={ninja_executable_path}",
]
except ImportError:
pass
if sys.platform.startswith("darwin"):
# Cross-compile support for macOS - respect ARCHFLAGS if set
archs = re.findall(r"-arch (\S+)", os.environ.get("ARCHFLAGS", ""))
if archs:
cmake_args += [
"-DCMAKE_OSX_ARCHITECTURES={}".format(";".join(archs))
]
# Set CMAKE_BUILD_PARALLEL_LEVEL to control the parallel build level
# across all generators.
if "CMAKE_BUILD_PARALLEL_LEVEL" not in os.environ:
# self.parallel is a Python 3 only way to set parallel jobs by hand
# using -j in the build_ext call, not supported by pip or PyPA-build.
if hasattr(self, "parallel") and self.parallel:
# CMake 3.12+ only.
build_args += [f"-j{self.parallel}"]
build_temp = os.path.join(self.build_temp, ext.name)
if not os.path.exists(build_temp):
os.makedirs(build_temp)
subprocess.check_call(["which", "g++"])
subprocess.check_call(
["cmake", ext.sourcedir] + cmake_args, cwd=build_temp
)
subprocess.check_call(
["cmake", "--build", "."] + build_args, cwd=build_temp
)
# The information here can also be placed in setup.cfg - better separation of
# logic and declaration, and simpler if you include description/version in a file.
setup(
name="radler",
version="0.0.1",
author="Andre Offringa",
author_email="offringa@astron.nl",
description="Radio Astronomical Deconvolution Library",
long_description="Radler is a library providing functionality for deconvolving astronomical images. Radler evolved as a stand-alone library from the w-stacking clean (WSClean) imager, https://gitlab.com/aroffringa/wsclean.",
ext_modules=[CMakeExtension("radler")],
cmdclass={"build_ext": CMakeBuild},
zip_safe=False,
python_requires=">=3.6",
url="https://radler.readthedocs.io/",
classifiers=[
"Development Status :: 4 - Beta",
"License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3)",
"Topic :: Scientific/Engineering :: Astronomy",
],
)
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