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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#) https://grpc.io/
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grpc/setup.py

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# Copyright 2015 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.
"""A setup module for the GRPC Python package."""
# setuptools need to be imported before distutils. Otherwise it might lead to
# undesirable behaviors or errors.
import setuptools
# Monkey Patch the unix compiler to accept ASM
# files used by boring SSL.
from distutils.unixccompiler import UnixCCompiler
UnixCCompiler.src_extensions.append('.S')
del UnixCCompiler
from distutils import cygwinccompiler
from distutils import extension as _extension
from distutils import util
import os
import os.path
import pkg_resources
import platform
import re
import shlex
import shutil
import sys
import sysconfig
from setuptools.command import egg_info
import subprocess
from subprocess import PIPE
# Redirect the manifest template from MANIFEST.in to PYTHON-MANIFEST.in.
egg_info.manifest_maker.template = 'PYTHON-MANIFEST.in'
PY3 = sys.version_info.major == 3
PYTHON_STEM = os.path.join('src', 'python', 'grpcio')
CORE_INCLUDE = (
'include',
'.',
)
ABSL_INCLUDE = (os.path.join('third_party', 'abseil-cpp'),)
ADDRESS_SORTING_INCLUDE = (os.path.join('third_party', 'address_sorting',
'include'),)
CARES_INCLUDE = (
os.path.join('third_party', 'cares'),
os.path.join('third_party', 'cares', 'cares'),
)
if 'darwin' in sys.platform:
CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_darwin'),)
if 'freebsd' in sys.platform:
CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_freebsd'),)
if 'linux' in sys.platform:
CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_linux'),)
if 'openbsd' in sys.platform:
CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_openbsd'),)
RE2_INCLUDE = (os.path.join('third_party', 're2'),)
SSL_INCLUDE = (os.path.join('third_party', 'boringssl-with-bazel', 'src',
'include'),)
UPB_INCLUDE = (os.path.join('third_party', 'upb'),)
UPB_GRPC_GENERATED_INCLUDE = (os.path.join('src', 'core', 'ext',
'upb-generated'),)
UPBDEFS_GRPC_GENERATED_INCLUDE = (os.path.join('src', 'core', 'ext',
'upbdefs-generated'),)
ZLIB_INCLUDE = (os.path.join('third_party', 'zlib'),)
README = os.path.join(PYTHON_STEM, 'README.rst')
# Ensure we're in the proper directory whether or not we're being used by pip.
os.chdir(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, os.path.abspath(PYTHON_STEM))
# Break import-style to ensure we can actually find our in-repo dependencies.
import _parallel_compile_patch
import _spawn_patch
import commands
import grpc_core_dependencies
import grpc_version
_parallel_compile_patch.monkeypatch_compile_maybe()
_spawn_patch.monkeypatch_spawn()
LICENSE = 'Apache License 2.0'
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 :: 3.5',
'Programming Language :: Python :: 3.6',
'Programming Language :: Python :: 3.7',
'Programming Language :: Python :: 3.8',
'Programming Language :: Python :: 3.9',
'License :: OSI Approved :: Apache Software License',
]
BUILD_WITH_BORING_SSL_ASM = os.environ.get('GRPC_BUILD_WITH_BORING_SSL_ASM',
True)
# Export this environment variable to override the platform variant that will
# be chosen for boringssl assembly optimizations. This option is useful when
# crosscompiling and the host platform as obtained by distutils.utils.get_platform()
# doesn't match the platform we are targetting.
# Example value: "linux-aarch64"
BUILD_OVERRIDE_BORING_SSL_ASM_PLATFORM = os.environ.get(
'GRPC_BUILD_OVERRIDE_BORING_SSL_ASM_PLATFORM', '')
# 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. Even if this
# is set to false, if the script detects that the generated `.c` file isn't
# present, then it will still attempt to use Cython.
BUILD_WITH_CYTHON = os.environ.get('GRPC_PYTHON_BUILD_WITH_CYTHON', False)
# Export this variable to use the system installation of openssl. You need to
# have the header files installed (in /usr/include/openssl) and during
# runtime, the shared library must be installed
BUILD_WITH_SYSTEM_OPENSSL = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_OPENSSL',
False)
# Export this variable to use the system installation of zlib. You need to
# have the header files installed (in /usr/include/) and during
# runtime, the shared library must be installed
BUILD_WITH_SYSTEM_ZLIB = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_ZLIB', False)
# Export this variable to use the system installation of cares. You need to
# have the header files installed (in /usr/include/) and during
# runtime, the shared library must be installed
BUILD_WITH_SYSTEM_CARES = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_CARES',
False)
# Export this variable to use the system installation of re2. You need to
# have the header files installed (in /usr/include/re2) and during
# runtime, the shared library must be installed
BUILD_WITH_SYSTEM_RE2 = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_RE2', False)
# Export this variable to force building the python extension with a statically linked libstdc++.
# At least on linux, this is normally not needed as we can build manylinux-compatible wheels on linux just fine
# without statically linking libstdc++ (which leads to a slight increase in the wheel size).
# This option is useful when crosscompiling wheels for aarch64 where
# it's difficult to ensure that the crosscompilation toolchain has a high-enough version
# of GCC (we require >4.9) but still uses old-enough libstdc++ symbols.
# TODO(jtattermusch): remove this workaround once issues with crosscompiler version are resolved.
BUILD_WITH_STATIC_LIBSTDCXX = os.environ.get(
'GRPC_PYTHON_BUILD_WITH_STATIC_LIBSTDCXX', False)
# For local development use only: This skips building gRPC Core and its
# dependencies, including protobuf and boringssl. This allows "incremental"
# compilation by first building gRPC Core using make, then building only the
# Python/Cython layers here.
#
# Note that this requires libboringssl.a in the libs/{dbg,opt}/ directory, which
# may require configuring make to not use the system openssl implementation:
#
# make HAS_SYSTEM_OPENSSL_ALPN=0
#
# TODO(ericgribkoff) Respect the BUILD_WITH_SYSTEM_* flags alongside this option
USE_PREBUILT_GRPC_CORE = os.environ.get('GRPC_PYTHON_USE_PREBUILT_GRPC_CORE',
False)
# If this environmental variable is set, GRPC will not try to be compatible with
# libc versions old than the one it was compiled against.
DISABLE_LIBC_COMPATIBILITY = os.environ.get(
'GRPC_PYTHON_DISABLE_LIBC_COMPATIBILITY', False)
# Environment variable to determine whether or not to enable coverage analysis
# in Cython modules.
ENABLE_CYTHON_TRACING = os.environ.get('GRPC_PYTHON_ENABLE_CYTHON_TRACING',
False)
# Environment variable specifying whether or not there's interest in setting up
# documentation building.
ENABLE_DOCUMENTATION_BUILD = os.environ.get(
'GRPC_PYTHON_ENABLE_DOCUMENTATION_BUILD', False)
def check_linker_need_libatomic():
"""Test if linker on system needs libatomic."""
code_test = (b'#include <atomic>\n' +
b'int main() { return std::atomic<int64_t>{}; }')
cxx = os.environ.get('CXX', 'c++')
cpp_test = subprocess.Popen([cxx, '-x', 'c++', '-std=c++11', '-'],
stdin=PIPE,
stdout=PIPE,
stderr=PIPE)
cpp_test.communicate(input=code_test)
if cpp_test.returncode == 0:
return False
# Double-check to see if -latomic actually can solve the problem.
# https://github.com/grpc/grpc/issues/22491
cpp_test = subprocess.Popen(
[cxx, '-x', 'c++', '-std=c++11', '-latomic', '-'],
stdin=PIPE,
stdout=PIPE,
stderr=PIPE)
cpp_test.communicate(input=code_test)
return cpp_test.returncode == 0
# 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):
EXTRA_ENV_COMPILE_ARGS += ' -D_hypot=hypot'
# 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'
else:
EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime64 -D_timeb=__timeb64'
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:
EXTRA_ENV_COMPILE_ARGS += ' -std=gnu99 -fvisibility=hidden -fno-wrapv -fno-exceptions'
elif "darwin" in sys.platform:
EXTRA_ENV_COMPILE_ARGS += ' -stdlib=libc++ -fvisibility=hidden -fno-wrapv -fno-exceptions'
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'
if check_linker_need_libatomic():
EXTRA_ENV_LINK_ARGS += ' -latomic'
elif "win32" in sys.platform and sys.version_info < (3, 5):
msvcr = cygwinccompiler.get_msvcr()[0]
EXTRA_ENV_LINK_ARGS += (
' -static-libgcc -static-libstdc++ -mcrtdll={msvcr}'
' -static -lshlwapi'.format(msvcr=msvcr))
if "linux" in sys.platform:
EXTRA_ENV_LINK_ARGS += ' -Wl,-wrap,memcpy -static-libgcc'
EXTRA_COMPILE_ARGS = shlex.split(EXTRA_ENV_COMPILE_ARGS)
EXTRA_LINK_ARGS = shlex.split(EXTRA_ENV_LINK_ARGS)
if BUILD_WITH_STATIC_LIBSTDCXX:
EXTRA_LINK_ARGS.append('-static-libstdc++')
CYTHON_EXTENSION_PACKAGE_NAMES = ()
CYTHON_EXTENSION_MODULE_NAMES = ('grpc._cython.cygrpc',)
CYTHON_HELPER_C_FILES = ()
CORE_C_FILES = tuple(grpc_core_dependencies.CORE_SOURCE_FILES)
if "win32" in sys.platform:
CORE_C_FILES = filter(lambda x: 'third_party/cares' not in x, CORE_C_FILES)
if BUILD_WITH_SYSTEM_OPENSSL:
CORE_C_FILES = filter(lambda x: 'third_party/boringssl' not in x,
CORE_C_FILES)
CORE_C_FILES = filter(lambda x: 'src/boringssl' not in x, CORE_C_FILES)
SSL_INCLUDE = (os.path.join('/usr', 'include', 'openssl'),)
if BUILD_WITH_SYSTEM_ZLIB:
CORE_C_FILES = filter(lambda x: 'third_party/zlib' not in x, CORE_C_FILES)
ZLIB_INCLUDE = (os.path.join('/usr', 'include'),)
if BUILD_WITH_SYSTEM_CARES:
CORE_C_FILES = filter(lambda x: 'third_party/cares' not in x, CORE_C_FILES)
CARES_INCLUDE = (os.path.join('/usr', 'include'),)
if BUILD_WITH_SYSTEM_RE2:
CORE_C_FILES = filter(lambda x: 'third_party/re2' not in x, CORE_C_FILES)
RE2_INCLUDE = (os.path.join('/usr', 'include', 're2'),)
EXTENSION_INCLUDE_DIRECTORIES = ((PYTHON_STEM,) + CORE_INCLUDE + ABSL_INCLUDE +
ADDRESS_SORTING_INCLUDE + CARES_INCLUDE +
RE2_INCLUDE + SSL_INCLUDE + UPB_INCLUDE +
UPB_GRPC_GENERATED_INCLUDE +
UPBDEFS_GRPC_GENERATED_INCLUDE + ZLIB_INCLUDE)
EXTENSION_LIBRARIES = ()
if "linux" in sys.platform:
EXTENSION_LIBRARIES += ('rt',)
if not "win32" in sys.platform:
EXTENSION_LIBRARIES += ('m',)
if "win32" in sys.platform:
EXTENSION_LIBRARIES += (
'advapi32',
'ws2_32',
'dbghelp',
)
if BUILD_WITH_SYSTEM_OPENSSL:
EXTENSION_LIBRARIES += (
'ssl',
'crypto',
)
if BUILD_WITH_SYSTEM_ZLIB:
EXTENSION_LIBRARIES += ('z',)
if BUILD_WITH_SYSTEM_CARES:
EXTENSION_LIBRARIES += ('cares',)
if BUILD_WITH_SYSTEM_RE2:
EXTENSION_LIBRARIES += ('re2',)
DEFINE_MACROS = (('_WIN32_WINNT', 0x600),)
asm_files = []
asm_key = ''
if BUILD_WITH_BORING_SSL_ASM and not BUILD_WITH_SYSTEM_OPENSSL:
boringssl_asm_platform = BUILD_OVERRIDE_BORING_SSL_ASM_PLATFORM if BUILD_OVERRIDE_BORING_SSL_ASM_PLATFORM else util.get_platform(
)
LINUX_X86_64 = 'linux-x86_64'
LINUX_ARM = 'linux-arm'
LINUX_AARCH64 = 'linux-aarch64'
if LINUX_X86_64 == boringssl_asm_platform:
asm_key = 'crypto_linux_x86_64'
elif LINUX_ARM == boringssl_asm_platform:
asm_key = 'crypto_linux_arm'
elif LINUX_AARCH64 == boringssl_asm_platform:
asm_key = 'crypto_linux_aarch64'
elif "mac" in boringssl_asm_platform and "x86_64" in boringssl_asm_platform:
asm_key = 'crypto_mac_x86_64'
else:
print("ASM Builds for BoringSSL currently not supported on:",
boringssl_asm_platform)
if asm_key:
asm_files = grpc_core_dependencies.ASM_SOURCE_FILES[asm_key]
else:
DEFINE_MACROS += (('OPENSSL_NO_ASM', 1),)
if not DISABLE_LIBC_COMPATIBILITY:
DEFINE_MACROS += (('GPR_BACKWARDS_COMPATIBILITY_MODE', 1),)
if "win32" in sys.platform:
# TODO(zyc): Re-enable c-ares on x64 and x86 windows after fixing the
# ares_library_init compilation issue
DEFINE_MACROS += (
('WIN32_LEAN_AND_MEAN', 1),
('CARES_STATICLIB', 1),
('GRPC_ARES', 0),
('NTDDI_VERSION', 0x06000000),
('NOMINMAX', 1),
)
if '64bit' in platform.architecture()[0]:
DEFINE_MACROS += (('MS_WIN64', 1),)
elif sys.version_info >= (3, 5):
# For some reason, this is needed to get access to inet_pton/inet_ntop
# on msvc, but only for 32 bits
DEFINE_MACROS += (('NTDDI_VERSION', 0x06000000),)
else:
DEFINE_MACROS += (
('HAVE_CONFIG_H', 1),
('GRPC_ENABLE_FORK_SUPPORT', 1),
)
LDFLAGS = tuple(EXTRA_LINK_ARGS)
CFLAGS = tuple(EXTRA_COMPILE_ARGS)
if "linux" in sys.platform or "darwin" in sys.platform:
pymodinit_type = 'PyObject*' if PY3 else 'void'
pymodinit = 'extern "C" __attribute__((visibility ("default"))) {}'.format(
pymodinit_type)
DEFINE_MACROS += (('PyMODINIT_FUNC', pymodinit),)
DEFINE_MACROS += (('GRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK', 1),)
# By default, Python3 distutils enforces compatibility of
# c plugins (.so files) with the OSX version Python was built with.
# We need OSX 10.10, the oldest which supports C++ thread_local.
# Python 3.9: Mac OS Big Sur sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET') returns int (11)
if 'darwin' in sys.platform:
mac_target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
if mac_target:
mac_target = pkg_resources.parse_version(str(mac_target))
if mac_target < pkg_resources.parse_version('10.10.0'):
os.environ['MACOSX_DEPLOYMENT_TARGET'] = '10.10'
os.environ['_PYTHON_HOST_PLATFORM'] = re.sub(
r'macosx-[0-9]+\.[0-9]+-(.+)', r'macosx-10.10-\1',
util.get_platform())
def cython_extensions_and_necessity():
cython_module_files = [
os.path.join(PYTHON_STEM,
name.replace('.', '/') + '.pyx')
for name in CYTHON_EXTENSION_MODULE_NAMES
]
config = os.environ.get('CONFIG', 'opt')
prefix = 'libs/' + config + '/'
if USE_PREBUILT_GRPC_CORE:
extra_objects = [
prefix + 'libares.a', prefix + 'libboringssl.a',
prefix + 'libgpr.a', prefix + 'libgrpc.a'
]
core_c_files = []
else:
core_c_files = list(CORE_C_FILES)
extra_objects = []
extensions = [
_extension.Extension(
name=module_name,
sources=([module_file] + list(CYTHON_HELPER_C_FILES) +
core_c_files + asm_files),
include_dirs=list(EXTENSION_INCLUDE_DIRECTORIES),
libraries=list(EXTENSION_LIBRARIES),
define_macros=list(DEFINE_MACROS),
extra_objects=extra_objects,
extra_compile_args=list(CFLAGS),
extra_link_args=list(LDFLAGS),
) for (module_name, module_file
) in zip(list(CYTHON_EXTENSION_MODULE_NAMES), cython_module_files)
]
need_cython = BUILD_WITH_CYTHON
if not BUILD_WITH_CYTHON:
need_cython = need_cython or not commands.check_and_update_cythonization(
extensions)
# TODO: the strategy for conditional compiling and exposing the aio Cython
# dependencies will be revisited by https://github.com/grpc/grpc/issues/19728
return commands.try_cythonize(extensions,
linetracing=ENABLE_CYTHON_TRACING,
mandatory=BUILD_WITH_CYTHON), need_cython
CYTHON_EXTENSION_MODULES, need_cython = cython_extensions_and_necessity()
PACKAGE_DIRECTORIES = {
'': PYTHON_STEM,
}
INSTALL_REQUIRES = (
"six>=1.5.2",
"futures>=2.2.0; python_version<'3.2'",
"enum34>=1.0.4; python_version<'3.4'",
)
EXTRAS_REQUIRES = {
'protobuf': 'grpcio-tools>={version}'.format(version=grpc_version.VERSION),
}
SETUP_REQUIRES = INSTALL_REQUIRES + (
'Sphinx~=1.8.1',
'six>=1.10',
) if ENABLE_DOCUMENTATION_BUILD else ()
try:
import Cython
except ImportError:
if BUILD_WITH_CYTHON:
sys.stderr.write(
"You requested a Cython build via GRPC_PYTHON_BUILD_WITH_CYTHON, "
"but do not have Cython installed. We won't stop you from using "
"other commands, but the extension files will fail to build.\n")
elif need_cython:
sys.stderr.write(
'We could not find Cython. Setup may take 10-20 minutes.\n')
SETUP_REQUIRES += ('cython>=0.23',)
COMMAND_CLASS = {
'doc': commands.SphinxDocumentation,
'build_project_metadata': commands.BuildProjectMetadata,
'build_py': commands.BuildPy,
'build_ext': commands.BuildExt,
'gather': commands.Gather,
'clean': commands.Clean,
}
# Ensure that package data is copied over before any commands have been run:
credentials_dir = os.path.join(PYTHON_STEM, 'grpc', '_cython', '_credentials')
try:
os.mkdir(credentials_dir)
except OSError:
pass
shutil.copyfile(os.path.join('etc', 'roots.pem'),
os.path.join(credentials_dir, 'roots.pem'))
PACKAGE_DATA = {
# Binaries that may or may not be present in the final installation, but are
# mentioned here for completeness.
'grpc._cython': [
'_credentials/roots.pem',
'_windows/grpc_c.32.python',
'_windows/grpc_c.64.python',
],
}
PACKAGES = setuptools.find_packages(PYTHON_STEM)
setuptools.setup(
name='grpcio',
version=grpc_version.VERSION,
description='HTTP/2-based RPC framework',
author='The gRPC Authors',
author_email='grpc-io@googlegroups.com',
url='https://grpc.io',
license=LICENSE,
classifiers=CLASSIFIERS,
long_description=open(README).read(),
ext_modules=CYTHON_EXTENSION_MODULES,
packages=list(PACKAGES),
package_dir=PACKAGE_DIRECTORIES,
package_data=PACKAGE_DATA,
install_requires=INSTALL_REQUIRES,
extras_require=EXTRAS_REQUIRES,
setup_requires=SETUP_REQUIRES,
cmdclass=COMMAND_CLASS,
)