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"""Provides distutils command classes for the GRPC Python setup process.""" import distutils import glob import os import os.path import platform import re import shutil import subprocess import sys import traceback import setuptools from setuptools.command import build_ext from setuptools.command import build_py from setuptools.command import easy_install from setuptools.command import install from setuptools.command import test import support PYTHON_STEM = os.path.dirname(os.path.abspath(__file__)) CONF_PY_ADDENDUM = """ extensions.append('sphinx.ext.napoleon') napoleon_google_docstring = True napoleon_numpy_docstring = True html_theme = 'sphinx_rtd_theme' """ class CommandError(Exception): """Simple exception class for GRPC custom commands.""" # TODO(atash): Remove this once PyPI has better Linux bdist support. See # https://bitbucket.org/pypa/pypi/issues/120/binary-wheels-for-linux-are-not-supported def _get_grpc_custom_bdist(decorated_basename, target_bdist_basename): """Returns a string path to a bdist file for Linux to install. If we can retrieve a pre-compiled bdist from online, uses it. Else, emits a warning and builds from source. """ # TODO(atash): somehow the name that's returned from `wheel` is different # between different versions of 'wheel' (but from a compatibility standpoint, # the names are compatible); we should have some way of determining name # compatibility in the same way `wheel` does to avoid having to rename all of # the custom wheels that we build/upload to GCS. # Break import style to ensure that setup.py has had a chance to install the # relevant package. from six.moves.urllib import request decorated_path = decorated_basename + GRPC_CUSTOM_BDIST_EXT try: url = BINARIES_REPOSITORY + '/{target}'.format(target=decorated_path) bdist_data = request.urlopen(url).read() except IOError as error: raise CommandError( '{}\n\nCould not find the bdist {}: {}' .format(traceback.format_exc(), decorated_path, error.message)) # Our chosen local bdist path. bdist_path = target_bdist_basename + GRPC_CUSTOM_BDIST_EXT try: with open(bdist_path, 'w') as bdist_file: bdist_file.write(bdist_data) except IOError as error: raise CommandError( '{}\n\nCould not write grpcio bdist: {}' .format(traceback.format_exc(), error.message)) return bdist_path class SphinxDocumentation(setuptools.Command): """Command to generate documentation via sphinx.""" description = 'generate sphinx documentation' user_options = [] def initialize_options(self): pass def finalize_options(self): pass def run(self): # We import here to ensure that setup.py has had a chance to install the # relevant package eggs first. import sphinx import sphinx.apidoc metadata = self.distribution.metadata src_dir = os.path.join(PYTHON_STEM, 'grpc') sys.path.append(src_dir) sphinx.apidoc.main([ '', '--force', '--full', '-H', metadata.name, '-A', metadata.author, '-V', metadata.version, '-R', metadata.version, '-o', os.path.join('doc', 'src'), src_dir]) conf_filepath = os.path.join('doc', 'src', 'conf.py') with open(conf_filepath, 'a') as conf_file: conf_file.write(CONF_PY_ADDENDUM) sphinx.main(['', os.path.join('doc', 'src'), os.path.join('doc', 'build')]) class BuildProtoModules(setuptools.Command): """Command to generate project *_pb2.py modules from proto files.""" description = 'build protobuf modules' user_options = [ ('include=', None, 'path patterns to include in protobuf generation'), ('exclude=', None, 'path patterns to exclude from protobuf generation') ] def initialize_options(self): self.exclude = None self.include = r'.*\.proto$' self.protoc_command = None self.grpc_python_plugin_command = None def finalize_options(self): self.protoc_command = distutils.spawn.find_executable('protoc') self.grpc_python_plugin_command = distutils.spawn.find_executable( 'grpc_python_plugin') def run(self): if not self.protoc_command: raise CommandError('could not find protoc') if not self.grpc_python_plugin_command: raise CommandError('could not find grpc_python_plugin ' '(protoc plugin for GRPC Python)') include_regex = re.compile(self.include) exclude_regex = re.compile(self.exclude) if self.exclude else None paths = [] root_directory = PYTHON_STEM for walk_root, directories, filenames in os.walk(root_directory): for filename in filenames: path = os.path.join(walk_root, filename) if include_regex.match(path) and not ( exclude_regex and exclude_regex.match(path)): paths.append(path) command = [ self.protoc_command, '--plugin=protoc-gen-python-grpc={}'.format( self.grpc_python_plugin_command), '-I {}'.format(root_directory), '--python_out={}'.format(root_directory), '--python-grpc_out={}'.format(root_directory), ] + paths try: subprocess.check_output(' '.join(command), cwd=root_directory, shell=True, stderr=subprocess.STDOUT) except subprocess.CalledProcessError as e: raise CommandError('Command:\n{}\nMessage:\n{}\nOutput:\n{}'.format( command, e.message, e.output)) class BuildProjectMetadata(setuptools.Command): """Command to generate project metadata in a module.""" description = 'build grpcio project metadata files' user_options = [] def initialize_options(self): pass def finalize_options(self): pass def run(self): with open(os.path.join(PYTHON_STEM, 'grpc/_grpcio_metadata.py'), 'w') as module_file: module_file.write('__version__ = """{}"""'.format( self.distribution.get_version())) class BuildPy(build_py.build_py): """Custom project build command.""" def run(self): try: self.run_command('build_proto_modules') except CommandError as error: sys.stderr.write('warning: %s\n' % error.message) self.run_command('build_project_metadata') build_py.build_py.run(self) class BuildExt(build_ext.build_ext): """Custom build_ext command to enable compiler-specific flags.""" C_OPTIONS = { 'unix': ('-pthread', '-std=gnu99'), 'msvc': (), } LINK_OPTIONS = {} def build_extensions(self): compiler = self.compiler.compiler_type if compiler in BuildExt.C_OPTIONS: for extension in self.extensions: extension.extra_compile_args += list(BuildExt.C_OPTIONS[compiler]) if compiler in BuildExt.LINK_OPTIONS: for extension in self.extensions: extension.extra_link_args += list(BuildExt.LINK_OPTIONS[compiler]) try: build_ext.build_ext.build_extensions(self) except Exception as error: formatted_exception = traceback.format_exc() support.diagnose_build_ext_error(self, error, formatted_exception) raise CommandError( "Failed `build_ext` step:\n{}".format(formatted_exception)) class Gather(setuptools.Command): """Command to gather project dependencies.""" description = 'gather dependencies for grpcio' user_options = [ ('test', 't', 'flag indicating to gather test dependencies'), ('install', 'i', 'flag indicating to gather install dependencies') ] def initialize_options(self): self.test = False self.install = False def finalize_options(self): # distutils requires this override. pass def run(self): if self.install and self.distribution.install_requires: self.distribution.fetch_build_eggs(self.distribution.install_requires) if self.test and self.distribution.tests_require: self.distribution.fetch_build_eggs(self.distribution.tests_require) class TestLite(setuptools.Command): """Command to run tests without fetching or building anything.""" description = 'run tests without fetching or building anything.' user_options = [] def initialize_options(self): pass def finalize_options(self): # distutils requires this override. pass def run(self): self._add_eggs_to_path() import tests loader = tests.Loader() loader.loadTestsFromNames(['tests']) runner = tests.Runner() result = runner.run(loader.suite) if not result.wasSuccessful(): sys.exit('Test failure') def _add_eggs_to_path(self): """Adds all egg files under .eggs to sys.path""" # TODO(jtattemusch): there has to be a cleaner way to do this import pkg_resources eggs_dir = os.path.join(PYTHON_STEM, '../../../.eggs') eggs = [os.path.join(eggs_dir, filename) for filename in os.listdir(eggs_dir) if filename.endswith('.egg')] for egg in eggs: sys.path.insert(0, pkg_resources.normalize_path(egg)) class RunInterop(test.test): description = 'run interop test client/server' user_options = [ ('args=', 'a', 'pass-thru arguments for the client/server'), ('client', 'c', 'flag indicating to run the client'), ('server', 's', 'flag indicating to run the server') ] def initialize_options(self): self.args = '' self.client = False self.server = False def finalize_options(self): if self.client and self.server: raise DistutilsOptionError('you may only specify one of client or server') def run(self): if self.distribution.install_requires: self.distribution.fetch_build_eggs(self.distribution.install_requires) if self.distribution.tests_require: self.distribution.fetch_build_eggs(self.distribution.tests_require) if self.client: self.run_client() elif self.server: self.run_server() def run_server(self): # We import here to ensure that our setuptools parent has had a chance to # edit the Python system path. from tests.interop import server sys.argv[1:] = self.args.split() server.serve() def run_client(self): # We import here to ensure that our setuptools parent has had a chance to # edit the Python system path. from tests.interop import client sys.argv[1:] = self.args.split() client.test_interoperability()