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# Copyright 2016 gRPC authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from distutils import cygwinccompiler
from distutils import extension
from distutils import util
import errno
import os
import os.path
import pkg_resources
import platform
import re
import shlex
import shutil
import sys
import sysconfig
import setuptools
from setuptools.command import build_ext
# TODO(atash) add flag to disable Cython use
os.chdir(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, os.path.abspath('.'))
import protoc_lib_deps
import grpc_version
CLASSIFIERS = [
'Development Status :: 5 - Production/Stable',
'Programming Language :: Python',
'Programming Language :: Python :: 2',
'Programming Language :: Python :: 2.7',
'Programming Language :: Python :: 3',
'Programming Language :: Python :: 3.4',
'Programming Language :: Python :: 3.5',
'Programming Language :: Python :: 3.6',
'License :: OSI Approved :: Apache Software License',
]
PY3 = sys.version_info.major == 3
# Environment variable to determine whether or not the Cython extension should
# *use* Cython or use the generated C files. Note that this requires the C files
# to have been generated by building first *with* Cython support.
BUILD_WITH_CYTHON = os.environ.get('GRPC_PYTHON_BUILD_WITH_CYTHON', False)
# There are some situations (like on Windows) where CC, CFLAGS, and LDFLAGS are
# entirely ignored/dropped/forgotten by distutils and its Cygwin/MinGW support.
# We use these environment variables to thus get around that without locking
# ourselves in w.r.t. the multitude of operating systems this ought to build on.
# We can also use these variables as a way to inject environment-specific
# compiler/linker flags. We assume GCC-like compilers and/or MinGW as a
# reasonable default.
EXTRA_ENV_COMPILE_ARGS = os.environ.get('GRPC_PYTHON_CFLAGS', None)
EXTRA_ENV_LINK_ARGS = os.environ.get('GRPC_PYTHON_LDFLAGS', None)
if EXTRA_ENV_COMPILE_ARGS is None:
EXTRA_ENV_COMPILE_ARGS = '-std=c++11'
if 'win32' in sys.platform:
if sys.version_info < (3, 5):
# We use define flags here and don't directly add to DEFINE_MACROS below to
# ensure that the expert user/builder has a way of turning it off (via the
# envvars) without adding yet more GRPC-specific envvars.
# See https://sourceforge.net/p/mingw-w64/bugs/363/
if '32' in platform.architecture()[0]:
EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime32 -D_timeb=__timeb32 -D_ftime_s=_ftime32_s -D_hypot=hypot'
else:
EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime64 -D_timeb=__timeb64 -D_hypot=hypot'
else:
# We need to statically link the C++ Runtime, only the C runtime is
# available dynamically
EXTRA_ENV_COMPILE_ARGS += ' /MT'
elif "linux" in sys.platform or "darwin" in sys.platform:
EXTRA_ENV_COMPILE_ARGS += ' -fno-wrapv -frtti'
if EXTRA_ENV_LINK_ARGS is None:
EXTRA_ENV_LINK_ARGS = ''
if "linux" in sys.platform or "darwin" in sys.platform:
EXTRA_ENV_LINK_ARGS += ' -lpthread'
elif "win32" in sys.platform and sys.version_info < (3, 5):
msvcr = cygwinccompiler.get_msvcr()[0]
# TODO(atash) sift through the GCC specs to see if libstdc++ can have any
# influence on the linkage outcome on MinGW for non-C++ programs.
EXTRA_ENV_LINK_ARGS += (
' -static-libgcc -static-libstdc++ -mcrtdll={msvcr} '
'-static'.format(msvcr=msvcr))
EXTRA_COMPILE_ARGS = shlex.split(EXTRA_ENV_COMPILE_ARGS)
EXTRA_LINK_ARGS = shlex.split(EXTRA_ENV_LINK_ARGS)
CC_FILES = [os.path.normpath(cc_file) for cc_file in protoc_lib_deps.CC_FILES]
PROTO_FILES = [
os.path.normpath(proto_file) for proto_file in protoc_lib_deps.PROTO_FILES
]
CC_INCLUDE = os.path.normpath(protoc_lib_deps.CC_INCLUDE)
PROTO_INCLUDE = os.path.normpath(protoc_lib_deps.PROTO_INCLUDE)
GRPC_PYTHON_TOOLS_PACKAGE = 'grpc_tools'
GRPC_PYTHON_PROTO_RESOURCES_NAME = '_proto'
DEFINE_MACROS = ()
if "win32" in sys.platform:
DEFINE_MACROS += (('WIN32_LEAN_AND_MEAN', 1),)
if '64bit' in platform.architecture()[0]:
DEFINE_MACROS += (('MS_WIN64', 1),)
elif "linux" in sys.platform or "darwin" in sys.platform:
DEFINE_MACROS += (('HAVE_PTHREAD', 1),)
# By default, Python3 distutils enforces compatibility of
# c plugins (.so files) with the OSX version Python3 was built with.
# For Python3.4, this is OSX 10.6, but we need Thread Local Support (__thread)
if 'darwin' in sys.platform and PY3:
mac_target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
if mac_target and (pkg_resources.parse_version(mac_target) <
pkg_resources.parse_version('10.9.0')):
os.environ['MACOSX_DEPLOYMENT_TARGET'] = '10.9'
os.environ['_PYTHON_HOST_PLATFORM'] = re.sub(
r'macosx-[0-9]+\.[0-9]+-(.+)', r'macosx-10.9-\1',
util.get_platform())
def package_data():
tools_path = GRPC_PYTHON_TOOLS_PACKAGE.replace('.', os.path.sep)
proto_resources_path = os.path.join(tools_path,
GRPC_PYTHON_PROTO_RESOURCES_NAME)
proto_files = []
for proto_file in PROTO_FILES:
source = os.path.join(PROTO_INCLUDE, proto_file)
target = os.path.join(proto_resources_path, proto_file)
relative_target = os.path.join(GRPC_PYTHON_PROTO_RESOURCES_NAME,
proto_file)
try:
os.makedirs(os.path.dirname(target))
except OSError as error:
if error.errno == errno.EEXIST:
pass
else:
raise
shutil.copy(source, target)
proto_files.append(relative_target)
return {GRPC_PYTHON_TOOLS_PACKAGE: proto_files}
def extension_modules():
if BUILD_WITH_CYTHON:
plugin_sources = [os.path.join('grpc_tools', '_protoc_compiler.pyx')]
else:
plugin_sources = [os.path.join('grpc_tools', '_protoc_compiler.cpp')]
plugin_sources += [
os.path.join('grpc_tools', 'main.cc'),
os.path.join('grpc_root', 'src', 'compiler', 'python_generator.cc')
] + [os.path.join(CC_INCLUDE, cc_file) for cc_file in CC_FILES]
plugin_ext = extension.Extension(
name='grpc_tools._protoc_compiler',
sources=plugin_sources,
include_dirs=[
'.',
'grpc_root',
os.path.join('grpc_root', 'include'),
CC_INCLUDE,
],
language='c++',
define_macros=list(DEFINE_MACROS),
extra_compile_args=list(EXTRA_COMPILE_ARGS),
extra_link_args=list(EXTRA_LINK_ARGS),
)
extensions = [plugin_ext]
if BUILD_WITH_CYTHON:
from Cython import Build
return Build.cythonize(extensions)
else:
return extensions
setuptools.setup(
name='grpcio-tools',
version=grpc_version.VERSION,
description='Protobuf code generator for gRPC',
author='The gRPC Authors',
author_email='grpc-io@googlegroups.com',
url='https://grpc.io',
license='Apache License 2.0',
classifiers=CLASSIFIERS,
ext_modules=extension_modules(),
packages=setuptools.find_packages('.'),
install_requires=[
'protobuf>=3.5.0.post1',
'grpcio>={version}'.format(version=grpc_version.VERSION),
],
package_data=package_data(),
)
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