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setup.py
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# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
"""Run via ```python setup.py develop``` to install Nocturne in your environment."""
import logging
import multiprocessing
import os
import re
import subprocess
import sys
from distutils.version import LooseVersion
from setuptools import Extension, setup
from setuptools.command.build_ext import build_ext
# Reference:
# https://www.benjack.io/2017/06/12/python-cpp-tests.html
class CMakeExtension(Extension):
"""Use CMake to construct the Nocturne extension."""
def __init__(self, name, src_dir=""):
Extension.__init__(self, name, sources=[])
self.src_dir = os.path.abspath(src_dir)
class CMakeBuild(build_ext):
"""Utility class for building Nocturne."""
def run(self):
"""Run cmake."""
try:
cmake_version = subprocess.check_output(["cmake", "--version"])
except OSError:
raise RuntimeError(
"CMake must be installed to build the following extensions: " +
", ".join(e.name for e in self.extensions))
cmake_version = LooseVersion(
re.search(r"version\s*([\d.]+)", cmake_version.decode()).group(1))
if cmake_version < "3.14":
raise RuntimeError("CMake >= 3.14 is required.")
for ext in self.extensions:
self.build_extension(ext)
def build_extension(self, ext):
"""Run the C++ build commands."""
ext_dir = os.path.abspath(
os.path.dirname(self.get_ext_fullpath(ext.name)))
cmake_args = [
"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=" + ext_dir,
"-DPYTHON_EXECUTABLE=" + sys.executable
]
cfg = "Debug" if self.debug else "Release"
build_args = ["--config", cfg]
cmake_args += ["-DCMAKE_BUILD_TYPE=" + cfg]
build_args += ["--", f"-j{multiprocessing.cpu_count()}"]
env = os.environ.copy()
env["CXXFLAGS"] = f'{env.get("CXXFLAGS", "")} \
-DVERSION_INFO="{self.distribution.get_version()}"'
if not os.path.exists(self.build_temp):
os.makedirs(self.build_temp)
cmd = ["cmake", ext.src_dir] + cmake_args
try:
subprocess.check_call(cmd, cwd=self.build_temp, env=env)
except subprocess.CalledProcessError:
logging.error(f"Aborting due to errors when running command {cmd}")
sys.exit(1)
cmd = ["cmake", "--build", "."] + build_args
try:
subprocess.check_call(cmd, cwd=self.build_temp)
except subprocess.CalledProcessError:
logging.error(f"Aborting due to errors when running command {cmd}")
sys.exit(1)
print() # Add an empty line for cleaner output
def main():
"""Build the C++ code."""
# with open("./requirements.txt", "r") as f:
# requires = f.read().splitlines()
setup(
ext_modules=[CMakeExtension("nocturne", "./nocturne")],
cmdclass=dict(build_ext=CMakeBuild),
)
if __name__ == "__main__":
main()