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import subprocess
from pathlib import Path
import platform
import sys
from itertools import chain
from distutils.command.build_py import build_py as _build_py
from distutils.command.clean import clean as _clean
import shutil
from setuptools import setup, Extension, find_packages
from setuptools.command.build_ext import build_ext as _build_ext
from setuptools.command.install import install as _install
IS_WINDOWS = (platform.system() == 'Windows')
IS_DARWIN = (platform.system() == 'Darwin')
IS_LINUX = (platform.system() == 'Linux')
REQUIREMENTS_FILE = 'requirements.txt'
PACKAGE_NAME = 'inference_engine'
PACKAGE = Path(PACKAGE_NAME)
C_LIB_NAME = '{}._C'.format(PACKAGE_NAME)
_build_cmd = ['cmake', '--build', '.']
INFERENCE_ENGINE_DIR = None
BUNDLE_INFERENCE_ENGINE = False
def parse_command_line_options(cls):
"""Propagates command line options to sub-commands.
Allows to run install command with build_ext options"""
base_user_options = getattr(cls, 'user_options', [])
base_boolean_options = getattr(cls, 'boolean_options', [])
base_run = cls.run
base_init_options = cls.initialize_options
cls.user_options = base_user_options + [
('copy-ie-libs', None, 'Copy Inference Engine Libraries to package directory'),
('inference-engine-dir=', None, 'Path to Inference Engine directory')
]
cls.boolean_options = base_boolean_options + [
'copy-ie-libs'
]
def initialize_options(self):
self.copy_ie_libs = False
self.inference_engine_dir = None
base_init_options(self)
def run(self):
global INFERENCE_ENGINE_DIR
global BUNDLE_INFERENCE_ENGINE
if self.copy_ie_libs:
BUNDLE_INFERENCE_ENGINE = True
if self.inference_engine_dir:
INFERENCE_ENGINE_DIR = self.inference_engine_dir
base_run(self)
cls.initialize_options = initialize_options
cls.run = run
return cls
@parse_command_line_options
class install(_install):
pass
@parse_command_line_options
class build_py(_build_py):
pass
@parse_command_line_options
class build_ext(_build_ext):
def run(self):
if not self.extensions:
return
for i, ext in enumerate(self.extensions):
if ext.name == C_LIB_NAME:
self._build_cmake()
self.extensions.pop(i)
break
super().run()
def _build_cmake(self):
print("Building C++ extension")
if Path.cwd().joinpath("Makefile").is_file():
# in build directory, run make only
subprocess.call(_build_cmd)
else:
# compile extension library and
self.build_cmake_lib()
print("Built C++ extension")
def build_cmake_lib(self):
def save_call(*args, error_msg=None, **kwargs):
if subprocess.call(*args, **kwargs) != 0:
if error_msg:
print(error_msg)
shutil.rmtree(tmp_build_dir.as_posix(), ignore_errors=True)
sys.exit(1)
tmp_build_dir = Path("tmp_build")
destination = Path(self.build_lib) / PACKAGE_NAME if not self.inplace else Path(PACKAGE_NAME)
tmp_build_dir.mkdir(exist_ok=False)
_python_executable_opt = ['-DPYTHON_EXECUTABLE={}'.format(sys.executable)]
_build_type_opt = ['-DCMAKE_BUILD_TYPE=Release']
_generator_opt = ['-G', 'NMake Makefiles' if IS_WINDOWS else "Unix Makefiles"]
_optional = []
if BUNDLE_INFERENCE_ENGINE:
_optional.append('-DCOPY_IE_LIBS=ON')
if INFERENCE_ENGINE_DIR:
_optional.append('-DInferenceEngine_DIR={}'.format(INFERENCE_ENGINE_DIR))
_cmake_cmd = list(chain(['cmake'], _generator_opt, _build_type_opt, _python_executable_opt, _optional, ['..']))
save_call(_cmake_cmd, cwd=tmp_build_dir.as_posix(), error_msg="Cmake generator failed")
save_call(_build_cmd, cwd=tmp_build_dir.as_posix(), error_msg="Build command failed")
build_ext.copy_compiled_libs(tmp_build_dir / PACKAGE_NAME, destination)
shutil.rmtree(tmp_build_dir.as_posix(), ignore_errors=False)
@staticmethod
def copy_compiled_libs(source_dir, destination):
extensions = ['so', 'dll', 'pyd']
for path in chain.from_iterable(source_dir.glob("*.%s" % ext) for ext in extensions):
shutil.copy(path.as_posix(), destination.as_posix())
class clean(_clean):
def run(self):
shutil.rmtree("tmp_build", ignore_errors=True)
extensions = ['so', 'dll', 'pyd']
for path in chain.from_iterable(PACKAGE.glob("*.%s" % ext) for ext in extensions):
path.unlink()
super().run()
def paths_to_str(paths):
return [p.as_posix() for p in paths]
with open(REQUIREMENTS_FILE) as reqs:
requirements = set(reqs.read().splitlines())
# do not spoil pre-installed opencv (in case it was built from source)
_opencv_package = "opencv-python"
try:
import cv2
if _opencv_package in requirements:
requirements.remove(_opencv_package)
except ImportError:
requirements.add(_opencv_package)
c_sources = [
PACKAGE / 'ie_driver.cpp',
PACKAGE / 'ie_driver.hpp',
PACKAGE / 'c_ie_driver.pxd',
PACKAGE / 'ie_driver.pyx',
PACKAGE / 'ie_driver.pxd',
]
extensions = [
Extension(C_LIB_NAME, paths_to_str(c_sources))
]
cmdclass = {
'build_ext': build_ext,
'build_py': build_py,
'clean': clean,
'install': install,
}
setup(
name="inference_engine",
version='0.1.1',
description='Python inference for Inference Engine',
packages=find_packages(exclude=['tests']),
package_data={PACKAGE_NAME: ['*.so', '*.dll', '*dylib*', '*.pyd']},
include_package_data=True,
ext_modules=extensions,
cmdclass=cmdclass,
author='', author_email='',
tests_require=['pytest'],
install_requires=list(requirements),
zip_safe=False,
)
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