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1# Copyright 2018 The gRPC Authors
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#     http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14"""Provides distutils command classes for the GRPC Python setup process."""
15
16import os
17import shutil
18
19import setuptools
20
21ROOT_DIR = os.path.abspath(os.path.dirname(os.path.abspath(__file__)))
22CHANNELZ_PROTO = os.path.join(ROOT_DIR,
23                              '../../proto/grpc/channelz/channelz.proto')
24LICENSE = os.path.join(ROOT_DIR, '../../../LICENSE')
25
26
27class Preprocess(setuptools.Command):
28    """Command to copy proto modules from grpc/src/proto and LICENSE from
29    the root directory"""
30
31    description = ''
32    user_options = []
33
34    def initialize_options(self):
35        pass
36
37    def finalize_options(self):
38        pass
39
40    def run(self):
41        if os.path.isfile(CHANNELZ_PROTO):
42            shutil.copyfile(
43                CHANNELZ_PROTO,
44                os.path.join(ROOT_DIR, 'grpc_channelz/v1/channelz.proto'))
45        if os.path.isfile(LICENSE):
46            shutil.copyfile(LICENSE, os.path.join(ROOT_DIR, 'LICENSE'))
47
48
49class BuildPackageProtos(setuptools.Command):
50    """Command to generate project *_pb2.py modules from proto files."""
51
52    description = 'build grpc protobuf modules'
53    user_options = []
54
55    def initialize_options(self):
56        pass
57
58    def finalize_options(self):
59        pass
60
61    def run(self):
62        # due to limitations of the proto generator, we require that only *one*
63        # directory is provided as an 'include' directory. We assume it's the '' key
64        # to `self.distribution.package_dir` (and get a key error if it's not
65        # there).
66        from grpc_tools import command
67        command.build_package_protos(self.distribution.package_dir[''])
68