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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.
import os
import sys
from grpc_tools import protoc
import setuptools
if sys.version_info >= (3, 9, 0):
from importlib import resources
else:
import pkg_resources
def _get_resource_file_name(
package_or_requirement: str, resource_name: str
) -> str:
"""Obtain the filename for a resource on the file system."""
file_name = None
if sys.version_info >= (3, 9, 0):
file_name = (
resources.files(package_or_requirement) / resource_name
).resolve()
else:
file_name = pkg_resources.resource_filename(
package_or_requirement, resource_name
)
return str(file_name)
def build_package_protos(package_root, strict_mode=False):
proto_files = []
inclusion_root = os.path.abspath(package_root)
for root, _, files in os.walk(inclusion_root):
for filename in files:
if filename.endswith(".proto"):
proto_files.append(
os.path.abspath(os.path.join(root, filename))
)
well_known_protos_include = _get_resource_file_name("grpc_tools", "_proto")
for proto_file in proto_files:
command = [
"grpc_tools.protoc",
"--proto_path={}".format(inclusion_root),
"--proto_path={}".format(well_known_protos_include),
"--python_out={}".format(inclusion_root),
"--pyi_out={}".format(inclusion_root),
"--grpc_python_out={}".format(inclusion_root),
] + [proto_file]
if protoc.main(command) != 0:
if strict_mode:
raise Exception("error: {} failed".format(command))
else:
sys.stderr.write("warning: {} failed".format(command))
class BuildPackageProtos(setuptools.Command):
"""Command to generate project *_pb2.py modules from proto files."""
description = "build grpc protobuf modules"
user_options = [
(
"strict-mode",
"s",
"exit with non-zero value if the proto compiling fails.",
)
]
def initialize_options(self):
self.strict_mode = False
def finalize_options(self):
pass
def run(self):
# due to limitations of the proto generator, we require that only *one*
# directory is provided as an 'include' directory. We assume it's the '' key
# to `self.distribution.package_dir` (and get a key error if it's not
# there).
build_package_protos(
self.distribution.package_dir[""], self.strict_mode
)
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