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setup.py
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setup.py
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# SPDX-License-Identifier: BSD-3-Clause
# Copyright Contributors to the OpenColorIO Project.
#
# Adapted from: https://github.com/pybind/cmake_example
#
import os
import re
import subprocess
import sys
import tempfile
from setuptools import setup, Extension
from setuptools.command.build_ext import build_ext
# Extract the project version from CMake generated ABI header.
def get_version():
VERSION_REGEX = re.compile(
r"^\s*#\s*define\s+OCIO_VERSION_FULL_STR\s+\"(.*)\"\s*$", re.MULTILINE)
here = os.path.abspath(os.path.dirname(__file__))
with tempfile.TemporaryDirectory() as tmpdir:
try:
subprocess.check_call(["cmake", here], cwd=tmpdir)
path = os.path.join(tmpdir, "include", "OpenColorIO", "OpenColorABI.h")
with open(path) as f:
match = VERSION_REGEX.search(f.read())
return match.group(1)
except Exception as e:
raise RuntimeError(
"Unable to find OpenColorIO version: {}".format(str(e))
)
# Call CMake find_package from a dummy script and return whether the package
# has been found or not.
def cmake_find_package(package_name):
with tempfile.TemporaryDirectory() as tmpdir:
try:
cmakelist_path = os.path.join(tmpdir, "CMakeLists.txt")
with open(cmakelist_path, "w") as f:
f.write("""
cmake_minimum_required(VERSION 3.13)
project(test LANGUAGES CXX)
find_package({} REQUIRED)
""".format(package_name)
)
subprocess.check_call(
["cmake", tmpdir],
cwd=tmpdir,
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL
)
return True
except Exception as e:
return False
# Convert distutils Windows platform specifiers to CMake -A arguments
PLAT_TO_CMAKE = {
"win32": "Win32",
"win-amd64": "x64",
"win-arm32": "ARM",
"win-arm64": "ARM64",
}
# 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)))
bindir = os.path.join(extdir, "bin")
# 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", "")
cmake_args = [
"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={}".format(extdir),
"-DCMAKE_RUNTIME_OUTPUT_DIRECTORY={}".format(bindir),
"-DPython_EXECUTABLE={}".format(sys.executable),
# Not used on MSVC, but no harm
"-DCMAKE_BUILD_TYPE={}".format(cfg),
"-DBUILD_SHARED_LIBS=ON",
"-DOCIO_USE_SOVERSION=OFF",
"-DOCIO_BUILD_APPS=ON",
"-DOCIO_BUILD_TESTS=OFF",
"-DOCIO_BUILD_GPU_TESTS=OFF",
# Make sure we build everything for the requested architecture(s)
"-DOCIO_INSTALL_EXT_PACKAGES=ALL",
]
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]
if self.compiler.compiler_type != "msvc":
# 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:
try:
import ninja # noqa: F401
cmake_args += ["-GNinja"]
except ImportError:
pass
else:
# Single config generators are handled "normally"
single_config = any(x in cmake_generator for x in {"NMake", "Ninja"})
# CMake allows an arch-in-generator style for backward compatibility
contains_arch = any(x in cmake_generator for x in {"ARM", "Win64"})
# Specify the arch if using MSVC generator, but only if it doesn't
# contain a backward-compatibility arch spec already in the
# generator name.
if not single_config and not contains_arch:
cmake_args += ["-A", PLAT_TO_CMAKE[self.plat_name]]
# Multi-config generators have a different way to specify configs
if not single_config:
cmake_args += [
"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{}={}".format(cfg.upper(), extdir),
"-DCMAKE_RUNTIME_OUTPUT_DIRECTORY_{}={}".format(cfg.upper(), bindir),
]
build_args += ["--config", cfg]
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))]
# When building the wheel, the install step is not executed so we need
# to have the correct RPATH directly from the build tree output.
cmake_args += ["-DCMAKE_BUILD_WITH_INSTALL_RPATH=ON"]
if sys.platform.startswith("linux"):
cmake_args += ["-DCMAKE_INSTALL_RPATH={}".format("$ORIGIN;$ORIGIN/..")]
if sys.platform.startswith("darwin"):
cmake_args += ["-DCMAKE_INSTALL_RPATH={}".format("@loader_path;@loader_path/..")]
# Documentation is used for Python docstrings but we allow to build
# the wheel without docs to remove a hard dependency on doxygen.
if cmake_find_package("Doxygen"):
cmake_args += ["-DOCIO_BUILD_DOCS=ON"]
# 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 += ["-j{}".format(self.parallel)]
if not os.path.exists(self.build_temp):
os.makedirs(self.build_temp)
subprocess.check_call(
["cmake", ext.sourcedir] + cmake_args, cwd=self.build_temp
)
subprocess.check_call(
["cmake", "--build", "."] + build_args, cwd=self.build_temp
)
# For historical reason, we use PyOpenColorIO as the import name
setup(
version=get_version(),
package_dir={
'PyOpenColorIO': 'src/bindings/python/package',
'PyOpenColorIO.bin.pyocioamf': 'src/apps/pyocioamf',
'PyOpenColorIO.bin.pyociodisplay': 'src/apps/pyociodisplay',
},
packages=[
'PyOpenColorIO',
'PyOpenColorIO.bin.pyocioamf',
'PyOpenColorIO.bin.pyociodisplay',
],
ext_modules=[CMakeExtension("PyOpenColorIO.PyOpenColorIO")],
cmdclass={"build_ext": CMakeBuild},
include_package_data=True,
entry_points={
'console_scripts': [
# Native applications
'ocioarchive=PyOpenColorIO.command_line:main',
'ociobakelut=PyOpenColorIO.command_line:main',
'ociocheck=PyOpenColorIO.command_line:main',
'ociochecklut=PyOpenColorIO.command_line:main',
'ocioconvert=PyOpenColorIO.command_line:main',
'ociodisplay=PyOpenColorIO.command_line:main',
'ociolutimage=PyOpenColorIO.command_line:main',
'ociomakeclf=PyOpenColorIO.command_line:main',
'ocioperf=PyOpenColorIO.command_line:main',
'ociowrite=PyOpenColorIO.command_line:main',
# Python applications
'pyocioamf=PyOpenColorIO.bin.pyocioamf.pyocioamf:main',
'pyociodisplay=PyOpenColorIO.bin.pyociodisplay.pyociodisplay:main',
]
},
)