aboutsummaryrefslogtreecommitdiffhomepage
path: root/setup.py
blob: b43ec9ae3d4757eef4103e8c52dea6b62684a92b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
# Copyright 2015, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#     * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

"""A setup module for the GRPC Python package."""

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

import setuptools
from setuptools.command import egg_info

# 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', '.',)
BORINGSSL_INCLUDE = (os.path.join('third_party', 'boringssl', 'include'),)
ZLIB_INCLUDE = (os.path.join('third_party', 'zlib'),)

# 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 _unixccompiler_patch
import commands
import grpc_core_dependencies
import grpc_version

if 'win32' in sys.platform:
  _unixccompiler_patch.monkeypatch_unix_compiler()


LICENSE = '3-clause BSD'

# 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)

# 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)

# 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.
# By default we assume a GCC-like compiler.
EXTRA_COMPILE_ARGS = shlex.split(os.environ.get('GRPC_PYTHON_CFLAGS', ''))
EXTRA_LINK_ARGS = shlex.split(os.environ.get('GRPC_PYTHON_LDFLAGS', ''))

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)

EXTENSION_INCLUDE_DIRECTORIES = (
    (PYTHON_STEM,) + CORE_INCLUDE + BORINGSSL_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 += ('ws2_32',)

DEFINE_MACROS = (
    ('OPENSSL_NO_ASM', 1), ('_WIN32_WINNT', 0x600),
    ('GPR_BACKWARDS_COMPATIBILITY_MODE', 1),)
if "win32" in sys.platform:
  DEFINE_MACROS += (('OPENSSL_WINDOWS', 1), ('WIN32_LEAN_AND_MEAN', 1),)
  if '64bit' in platform.architecture()[0]:
    DEFINE_MACROS += (('MS_WIN64', 1),)

LDFLAGS = tuple(EXTRA_LINK_ARGS)
CFLAGS = tuple(EXTRA_COMPILE_ARGS)
if "linux" in sys.platform:
  LDFLAGS += ('-Wl,-wrap,memcpy',)
if "linux" in sys.platform or "darwin" in sys.platform:
  CFLAGS += ('-fvisibility=hidden',)

  pymodinit_type = 'PyObject*' if PY3 else 'void'

  pymodinit = '__attribute__((visibility ("default"))) {}'.format(pymodinit_type)
  DEFINE_MACROS += (('PyMODINIT_FUNC', pymodinit),)


# 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('10.7.0')):
    os.environ['MACOSX_DEPLOYMENT_TARGET'] = '10.7'
    os.environ['_PYTHON_HOST_PLATFORM'] = re.sub(
        r'macosx-[0-9]+\.[0-9]+-(.+)',
        r'macosx-10.7-\1',
        util.get_platform())


def cython_extensions(module_names, extra_sources, include_dirs,
                      libraries, define_macros, build_with_cython=False):
  # Set compiler directives linetrace argument only if we care about tracing;
  # this is due to Cython having different behavior between linetrace being
  # False and linetrace being unset. See issue #5689.
  cython_compiler_directives = {}
  if ENABLE_CYTHON_TRACING:
    define_macros = define_macros + [('CYTHON_TRACE_NOGIL', 1)]
    cython_compiler_directives['linetrace'] = True
  file_extension = 'pyx' if build_with_cython else 'c'
  module_files = [os.path.join(PYTHON_STEM,
                               name.replace('.', '/') + '.' + file_extension)
                  for name in module_names]
  extensions = [
      _extension.Extension(
          name=module_name,
          sources=[module_file] + extra_sources,
          include_dirs=include_dirs, libraries=libraries,
          define_macros=define_macros,
          extra_compile_args=list(CFLAGS),
          extra_link_args=list(LDFLAGS),
      ) for (module_name, module_file) in zip(module_names, module_files)
  ]
  if build_with_cython:
    import Cython.Build
    return Cython.Build.cythonize(
        extensions,
        include_path=include_dirs,
        compiler_directives=cython_compiler_directives)
  else:
    return extensions

CYTHON_EXTENSION_MODULES = cython_extensions(
    list(CYTHON_EXTENSION_MODULE_NAMES),
    list(CYTHON_HELPER_C_FILES) + list(CORE_C_FILES),
    list(EXTENSION_INCLUDE_DIRECTORIES), list(EXTENSION_LIBRARIES),
    list(DEFINE_MACROS), bool(BUILD_WITH_CYTHON))

PACKAGE_DIRECTORIES = {
    '': PYTHON_STEM,
}

INSTALL_REQUIRES = (
    'six>=1.5.2',
    'enum34>=1.0.4',
    'futures>=2.2.0',
    # TODO(atash): eventually split the grpcio package into a metapackage
    # depending on protobuf and the runtime component (independent of protobuf)
    'protobuf>=3.0.0a3',
)

SETUP_REQUIRES = INSTALL_REQUIRES + (
    'sphinx>=1.3',
    'sphinx_rtd_theme>=0.1.8',
    'six>=1.10',
)

COMMAND_CLASS = {
    'doc': commands.SphinxDocumentation,
    'build_project_metadata': commands.BuildProjectMetadata,
    'build_py': commands.BuildPy,
    'build_ext': commands.BuildExt,
    'gather': commands.Gather,
}

# 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,
  license=LICENSE,
  ext_modules=CYTHON_EXTENSION_MODULES,
  packages=list(PACKAGES),
  package_dir=PACKAGE_DIRECTORIES,
  package_data=PACKAGE_DATA,
  install_requires=INSTALL_REQUIRES,
  setup_requires=SETUP_REQUIRES,
  cmdclass=COMMAND_CLASS,
)