xref: /aosp_15_r20/external/pigweed/pw_protobuf/Android.bp (revision 61c4878ac05f98d0ceed94b57d316916de578985) 
1// Copyright 2022 The Pigweed Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License"); you may not
4// use this file except in compliance with the License. You may obtain a copy of
5// the License at
6//
7//     https://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, WITHOUT
11// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12// License for the specific language governing permissions and limitations under
13// the License.
14
15package {
16    default_applicable_licenses: ["external_pigweed_license"],
17}
18
19cc_library_static {
20    name: "pw_protobuf",
21    cpp_std: "c++20",
22    vendor_available: true,
23    export_include_dirs: ["public"],
24    defaults: [
25        "pw_android_common_backends",
26    ],
27    header_libs: [
28        "fuchsia_sdk_lib_fit",
29        "fuchsia_sdk_lib_stdcompat",
30        "pw_assert",
31        "pw_log",
32    ],
33    export_header_lib_headers: [
34        "pw_assert",
35        "pw_log",
36    ],
37    host_supported: true,
38    srcs: [
39        "decoder.cc",
40        "encoder.cc",
41        "find.cc",
42        "map_utils.cc",
43        "message.cc",
44        "stream_decoder.cc",
45    ],
46    static_libs: [
47        "pw_bytes",
48        "pw_containers",
49        "pw_function",
50        "pw_polyfill",
51        "pw_preprocessor",
52        "pw_result",
53        "pw_span",
54        "pw_status",
55        "pw_stream",
56        "pw_string",
57        "pw_toolchain",
58        "pw_varint",
59    ],
60    export_static_lib_headers: [
61        "pw_bytes",
62        "pw_containers",
63        "pw_function",
64        "pw_preprocessor",
65        "pw_result",
66        "pw_span",
67        "pw_status",
68        "pw_stream",
69        "pw_toolchain",
70        "pw_varint",
71    ],
72}
73
74cc_library_headers {
75    name: "pw_protobuf_pwpb",
76    cpp_std: "c++20",
77    vendor_available: true,
78    host_supported: true,
79    generated_headers: [
80        "google_protobuf_descriptor_pwpb_h",
81        "pw_protobuf_protos_common_pwpb_h",
82    ],
83    export_generated_headers: [
84        "google_protobuf_descriptor_pwpb_h",
85        "pw_protobuf_protos_common_pwpb_h",
86    ],
87}
88
89genrule {
90    name: "pw_protobuf_protos_common_nanopb_h",
91    srcs: [":pw_protobuf_common_proto_with_prefix"],
92    cmd: "python3 $(location pw_protobuf_compiler_py) " +
93        "--proto-path=external/pigweed/pw_protobuf/ " +
94        "--out-dir=$$(dirname $(location pw_protobuf_protos/common.pb.h)) " +
95        "--plugin-path=$(location protoc-gen-nanopb) " +
96        "--compile-dir=$$(dirname $(in)) " +
97        "--sources $(in) " +
98        "--language nanopb " +
99        "--no-experimental-proto3-optional " +
100        "--no-experimental-editions " +
101        "--pwpb-no-oneof-callbacks " +
102        "--protoc=$(location aprotoc) ",
103    out: [
104        "pw_protobuf_protos/common.pb.h",
105    ],
106    tools: [
107        "aprotoc",
108        "protoc-gen-nanopb",
109        "pw_protobuf_compiler_py",
110    ],
111}
112
113// Copies the proto files to a prefix directory to add the prefix to the
114// compiled proto. The prefix is taken from the directory name of the first
115// item listen in out.
116genrule_defaults {
117    name: "pw_protobuf_add_prefix_to_proto",
118    cmd: "out_files=($(out)); prefix=$$(dirname $${out_files[0]}); " +
119        "mkdir -p $${prefix}; cp -t $${prefix} $(in);",
120}
121
122filegroup {
123    name: "pw_protobuf_common_proto",
124    srcs: [
125        "pw_protobuf_protos/common.proto",
126    ],
127}
128
129genrule {
130    name: "pw_protobuf_common_proto_with_prefix",
131    defaults: ["pw_protobuf_add_prefix_to_proto"],
132    srcs: [
133        "pw_protobuf_protos/common.proto",
134    ],
135    out: [
136        "pw_protobuf/pw_protobuf_protos/common.proto",
137    ],
138}
139
140genrule {
141    name: "pw_protobuf_protos_common_pwpb_h",
142    srcs: [":pw_protobuf_common_proto_with_prefix"],
143    cmd: "python3 $(location pw_protobuf_compiler_py) " +
144        "--proto-path=external/pigweed/pw_protobuf/ " +
145        "--proto-path=external/protobuf/src/ " +
146        "--out-dir=$$(dirname $(location pw_protobuf_protos/common.pwpb.h)) " +
147        "--plugin-path=$(location pw_protobuf_plugin_py) " +
148        "--compile-dir=$$(dirname $(in)) " +
149        "--sources $(in) " +
150        "--language pwpb " +
151        "--no-experimental-proto3-optional " +
152        "--no-experimental-editions " +
153        "--pwpb-no-oneof-callbacks " +
154        "--protoc=$(location aprotoc) ",
155    out: [
156        "pw_protobuf_protos/common.pwpb.h",
157    ],
158    tools: [
159        "aprotoc",
160        "pw_protobuf_plugin_py",
161        "pw_protobuf_compiler_py",
162    ],
163}
164
165// Generate the google/protobuf/descriptor.pwpb.h which is commonly imported.
166genrule {
167    name: "google_protobuf_descriptor_pwpb_h",
168    // The libprotobuf-internal-descriptor-proto filegroup is unavailable so
169    // instead filter for just the descriptor.proto.
170    srcs: [":libprotobuf-internal-protos"],
171    cmd: "in_files=($(in)); compile_dir=$$(dirname $${in_files[0]}); " +
172        "proto_files=(); " +
173        "for f in \"$${in_files[@]}\"; do " +
174        "if [[ \"$${f##*descriptor.}\" == \"proto\" ]]; then " +
175        "proto_files+=(\"$${f}\"); fi; done; " +
176        "python3 $(location pw_protobuf_compiler_py) " +
177        "--proto-path=external/protobuf/src/ " +
178        "--out-dir=$$(dirname $(location google/protobuf/descriptor.pwpb.h)) " +
179        "--plugin-path=$(location pw_protobuf_plugin_py) " +
180        "--compile-dir=$${compile_dir} " +
181        "--sources $${proto_files} " +
182        "--language pwpb " +
183        "--no-experimental-proto3-optional " +
184        "--no-experimental-editions " +
185        "--pwpb-no-oneof-callbacks " +
186        "--protoc=$(location aprotoc) ",
187    out: [
188        "google/protobuf/descriptor.pwpb.h",
189    ],
190    tools: [
191        "aprotoc",
192        "pw_protobuf_plugin_py",
193        "pw_protobuf_compiler_py",
194    ],
195}
196
197genrule {
198    name: "pw_protobuf_codegen_protos_py",
199    srcs: ["pw_protobuf_codegen_protos/codegen_options.proto"],
200    cmd: "$(location aprotoc) " +
201        "-I$$(dirname $(in)) " +
202        "--python_out=$(genDir) " +
203        "$(in)",
204    out: [
205        "codegen_options_pb2.py",
206    ],
207    tools: [
208        "aprotoc",
209    ],
210}
211
212python_library_host {
213    name: "pw_protobuf_codegen_protos_py_lib",
214    srcs: [
215        ":pw_protobuf_codegen_protos_py",
216    ],
217    pkg_path: "pw_protobuf_codegen_protos",
218}
219
220genrule {
221    name: "pw_protobuf_protos_py",
222    srcs: [
223        "pw_protobuf_protos/common.proto",
224        "pw_protobuf_protos/field_options.proto",
225        "pw_protobuf_protos/status.proto",
226        ":libprotobuf-internal-protos",
227    ],
228    cmd: "$(location aprotoc) " +
229        "-I$$(dirname $(location pw_protobuf_protos/common.proto)) " +
230        "-Iexternal/protobuf/src/ " +
231        "--python_out=$(genDir) " +
232        "$(in)",
233    out: [
234        "common_pb2.py",
235        "field_options_pb2.py",
236        "status_pb2.py",
237    ],
238    tools: [
239        "aprotoc",
240    ],
241}
242
243python_library_host {
244    name: "pw_protobuf_protos_py_lib",
245    srcs: [
246        ":pw_protobuf_protos_py",
247    ],
248    pkg_path: "pw_protobuf_protos",
249}
250