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# Copyright 2015-2016, 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.
import os
import platform
import shutil
import sys
import sysconfig
import setuptools
import commands
import grpc_version
try:
from urllib2 import urlopen
except ImportError:
from urllib.request import urlopen
PYTHON_STEM = os.path.dirname(os.path.abspath(__file__))
BINARIES_REPOSITORY = os.environ.get(
'GRPC_PYTHON_BINARIES_REPOSITORY',
'https://storage.googleapis.com/grpc-precompiled-binaries/python')
USE_PRECOMPILED_BINARIES = bool(int(os.environ.get(
'GRPC_PYTHON_USE_PRECOMPILED_BINARIES', '1')))
def _tagged_ext_name(base):
uname = platform.uname()
tags = (
grpc_version.VERSION,
'py{}'.format(sysconfig.get_python_version()),
uname[0],
uname[4],
)
ucs = 'ucs{}'.format(sysconfig.get_config_var('Py_UNICODE_SIZE'))
return '{base}-{tags}-{ucs}'.format(
base=base, tags='-'.join(tags), ucs=ucs)
class BuildTaggedExt(setuptools.Command):
description = 'build the gRPC tagged extensions'
user_options = []
def initialize_options(self):
# distutils requires this override.
pass
def finalize_options(self):
# distutils requires this override.
pass
def run(self):
if 'linux' in sys.platform:
self.run_command('build_ext')
try:
os.makedirs('dist/')
except OSError:
pass
shutil.copyfile(
os.path.join(PYTHON_STEM, 'grpc/_cython/cygrpc.so'),
'dist/{}.so'.format(_tagged_ext_name('cygrpc')))
else:
sys.stderr.write('nothing to do for build_tagged_ext\n')
def update_setup_arguments(setup_arguments):
url = '{}/{}.so'.format(BINARIES_REPOSITORY, _tagged_ext_name('cygrpc'))
target_path = os.path.join(PYTHON_STEM, 'grpc/_cython/cygrpc.so')
try:
extension = urlopen(url).read()
except:
sys.stderr.write(
'could not download precompiled extension: {}\n'.format(url))
return
try:
with open(target_path, 'w') as target:
target.write(extension)
setup_arguments['ext_modules'] = []
except:
sys.stderr.write(
'could not write precompiled extension to directory: {} -> {}\n'
.format(url, target_path))
return
setup_arguments['package_data']['grpc._cython'].append('cygrpc.so')
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