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1 # Copyright 2014 The Chromium Authors. All rights reserved. | 1 # Copyright 2014 The Chromium Authors. All rights reserved. |
2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 # Compile a protocol buffer. | 5 # Compile a protocol buffer. |
6 # | 6 # |
7 # Protobuf parameters: | 7 # Protobuf parameters: |
8 # | 8 # |
9 # proto_in_dir (optional) | 9 # proto_in_dir (optional) |
10 # Specifies the path relative to the current BUILD.gn file where | 10 # Specifies the path relative to the current BUILD.gn file where |
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86 template("proto_library") { | 86 template("proto_library") { |
87 assert(defined(invoker.sources), "Need sources for proto_library") | 87 assert(defined(invoker.sources), "Need sources for proto_library") |
88 proto_sources = invoker.sources | 88 proto_sources = invoker.sources |
89 | 89 |
90 # Don't apply OS-specific sources filtering to the assignments later on. | 90 # Don't apply OS-specific sources filtering to the assignments later on. |
91 # Platform files should have gotten filtered out in the sources assignment | 91 # Platform files should have gotten filtered out in the sources assignment |
92 # when this template was invoked. If they weren't, it was on purpose and | 92 # when this template was invoked. If they weren't, it was on purpose and |
93 # this template shouldn't re-apply the filter. | 93 # this template shouldn't re-apply the filter. |
94 set_sources_assignment_filter([]) | 94 set_sources_assignment_filter([]) |
95 | 95 |
| 96 if (host_os == "win") { |
| 97 host_executable_suffix = ".exe" |
| 98 } else { |
| 99 host_executable_suffix = "" |
| 100 } |
| 101 |
96 if (defined(invoker.generate_cc)) { | 102 if (defined(invoker.generate_cc)) { |
97 generate_cc = invoker.generate_cc | 103 generate_cc = invoker.generate_cc |
98 } else { | 104 } else { |
99 generate_cc = true | 105 generate_cc = true |
100 } | 106 } |
101 | 107 |
102 if (defined(invoker.generate_python)) { | 108 if (defined(invoker.generate_python)) { |
103 generate_python = invoker.generate_python | 109 generate_python = invoker.generate_python |
104 } else { | 110 } else { |
105 generate_python = true | 111 generate_python = true |
106 } | 112 } |
107 | 113 |
108 if (defined(invoker.generator_plugin_label)) { | 114 if (defined(invoker.generator_plugin_label)) { |
109 # Straightforward way to get the name of executable doesn't work because | 115 # Straightforward way to get the name of executable doesn't work because |
110 # |root_out_dir| and |root_build_dir| may differ in cross-compilation and | 116 # |root_out_dir| and |root_build_dir| may differ in cross-compilation and |
111 # also Windows executables have .exe at the end. | 117 # also Windows executables have .exe at the end. |
112 | 118 |
113 plugin_host_label = invoker.generator_plugin_label + "($host_toolchain)" | 119 plugin_host_label = invoker.generator_plugin_label + "($host_toolchain)" |
114 plugin_path = get_label_info(plugin_host_label, "root_out_dir") + "/" + | 120 plugin_path = get_label_info(plugin_host_label, "root_out_dir") + "/" + |
115 get_label_info(plugin_host_label, "name") | 121 get_label_info(plugin_host_label, "name") + |
116 if (host_os == "win") { | 122 host_executable_suffix |
117 plugin_path += ".exe" | |
118 } | |
119 generate_with_plugin = true | 123 generate_with_plugin = true |
120 } else if (defined(invoker.generator_plugin_script)) { | 124 } else if (defined(invoker.generator_plugin_script)) { |
121 plugin_path = invoker.generator_plugin_script | 125 plugin_path = invoker.generator_plugin_script |
122 generate_with_plugin = true | 126 generate_with_plugin = true |
123 } else { | 127 } else { |
124 generate_with_plugin = false | 128 generate_with_plugin = false |
125 } | 129 } |
126 | 130 |
127 if (generate_with_plugin) { | 131 if (generate_with_plugin) { |
128 if (defined(invoker.generator_plugin_suffix)) { | 132 if (defined(invoker.generator_plugin_suffix)) { |
129 generator_plugin_suffixes = [ | 133 generator_plugin_suffixes = [ |
130 "${invoker.generator_plugin_suffix}.h", | 134 "${invoker.generator_plugin_suffix}.h", |
131 "${invoker.generator_plugin_suffix}.cc", | 135 "${invoker.generator_plugin_suffix}.cc", |
132 ] | 136 ] |
133 } else { | 137 } else { |
134 generator_plugin_suffixes = invoker.generator_plugin_suffixes | 138 generator_plugin_suffixes = invoker.generator_plugin_suffixes |
135 } | 139 } |
136 plugin_path = rebase_path(plugin_path, root_build_dir) | |
137 } | 140 } |
138 | 141 |
139 if (defined(invoker.proto_in_dir)) { | 142 if (defined(invoker.proto_in_dir)) { |
140 proto_in_dir = invoker.proto_in_dir | 143 proto_in_dir = invoker.proto_in_dir |
141 has_nested_dirs = false | 144 has_nested_dirs = false |
142 foreach(proto_source, proto_sources) { | 145 foreach(proto_source, proto_sources) { |
143 if (get_path_info(proto_source, "dir") != proto_in_dir) { | 146 if (get_path_info(proto_source, "dir") != proto_in_dir) { |
144 has_nested_dirs = true | 147 has_nested_dirs = true |
145 } | 148 } |
146 } | 149 } |
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209 source_set_name = target_name | 212 source_set_name = target_name |
210 | 213 |
211 # Generate protobuf stubs. | 214 # Generate protobuf stubs. |
212 action(action_name) { | 215 action(action_name) { |
213 visibility = [ ":$source_set_name" ] | 216 visibility = [ ":$source_set_name" ] |
214 script = "//tools/protoc_wrapper/protoc_wrapper.py" | 217 script = "//tools/protoc_wrapper/protoc_wrapper.py" |
215 sources = proto_sources | 218 sources = proto_sources |
216 outputs = get_path_info(protogens, "abspath") | 219 outputs = get_path_info(protogens, "abspath") |
217 args = protos | 220 args = protos |
218 | 221 |
219 if (defined(invoker.generator_plugin_script)) { | |
220 inputs = [ | |
221 invoker.generator_plugin_script, | |
222 ] | |
223 } | |
224 if (defined(invoker.generator_plugin_script_deps)) { | |
225 inputs += invoker.generator_plugin_script_deps | |
226 } | |
227 | |
228 protoc_label = "//third_party/protobuf:protoc($host_toolchain)" | 222 protoc_label = "//third_party/protobuf:protoc($host_toolchain)" |
229 protoc_out_dir = get_label_info(protoc_label, "root_out_dir") | 223 protoc_path = get_label_info(protoc_label, "root_out_dir") + "/protoc" + |
| 224 host_executable_suffix |
230 args += [ | 225 args += [ |
231 # Wrapper should never pick a system protoc. | 226 # Wrapper should never pick a system protoc. |
232 # Path should be rebased because |root_build_dir| for current toolchain | 227 # Path should be rebased because |root_build_dir| for current toolchain |
233 # may be different from |root_out_dir| of protoc built on host toolchain. | 228 # may be different from |root_out_dir| of protoc built on host toolchain. |
234 "--protoc", | 229 "--protoc", |
235 "./" + rebase_path(protoc_out_dir, root_build_dir) + "/protoc", | 230 "./" + rebase_path(protoc_path, root_build_dir), |
236 "--proto-in-dir", | 231 "--proto-in-dir", |
237 rebase_path(proto_in_dir, root_build_dir), | 232 rebase_path(proto_in_dir, root_build_dir), |
238 ] | 233 ] |
239 | 234 |
240 if (generate_cc) { | 235 if (generate_cc) { |
241 args += [ | 236 args += [ |
242 "--cc-out-dir", | 237 "--cc-out-dir", |
243 rel_cc_out_dir, | 238 rel_cc_out_dir, |
244 ] | 239 ] |
245 if (defined(invoker.cc_generator_options)) { | 240 if (defined(invoker.cc_generator_options)) { |
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259 if (generate_python) { | 254 if (generate_python) { |
260 args += [ | 255 args += [ |
261 "--py-out-dir", | 256 "--py-out-dir", |
262 rel_py_out_dir, | 257 rel_py_out_dir, |
263 ] | 258 ] |
264 } | 259 } |
265 | 260 |
266 if (generate_with_plugin) { | 261 if (generate_with_plugin) { |
267 args += [ | 262 args += [ |
268 "--plugin", | 263 "--plugin", |
269 plugin_path, | 264 rebase_path(plugin_path, root_build_dir), |
270 "--plugin-out-dir", | 265 "--plugin-out-dir", |
271 rel_cc_out_dir, | 266 rel_cc_out_dir, |
272 ] | 267 ] |
273 if (defined(invoker.generator_plugin_options)) { | 268 if (defined(invoker.generator_plugin_options)) { |
274 args += [ | 269 args += [ |
275 "--plugin-options", | 270 "--plugin-options", |
276 invoker.generator_plugin_options, | 271 invoker.generator_plugin_options, |
277 ] | 272 ] |
278 } | 273 } |
279 } | 274 } |
280 | 275 |
| 276 # System protoc is not used so it's necessary to build a chromium one. |
| 277 inputs = [ |
| 278 protoc_path, |
| 279 ] |
281 deps = [ | 280 deps = [ |
282 # System protoc is not used so it's necessary to build a chromium one. | |
283 protoc_label, | 281 protoc_label, |
284 ] | 282 ] |
285 if (defined(plugin_host_label)) { | 283 |
286 # Action depends on generator plugin but for host toolchain only. | 284 if (generate_with_plugin) { |
287 deps += [ plugin_host_label ] | 285 inputs += [ plugin_path ] |
| 286 if (defined(invoker.generator_plugin_script_deps)) { |
| 287 # Additional scripts for plugin. |
| 288 inputs += invoker.generator_plugin_script_deps |
| 289 } |
| 290 if (defined(plugin_host_label)) { |
| 291 # Action depends on native generator plugin but for host toolchain only. |
| 292 deps += [ plugin_host_label ] |
| 293 } |
288 } | 294 } |
| 295 |
289 if (defined(invoker.deps)) { | 296 if (defined(invoker.deps)) { |
290 # The deps may have steps that have to run before running protoc. | 297 # The deps may have steps that have to run before running protoc. |
291 deps += invoker.deps | 298 deps += invoker.deps |
292 } | 299 } |
293 } | 300 } |
294 | 301 |
295 # Option to disable building a library in component build. | 302 # Option to disable building a library in component build. |
296 if (defined(invoker.component_build_force_source_set) && | 303 if (defined(invoker.component_build_force_source_set) && |
297 invoker.component_build_force_source_set && | 304 invoker.component_build_force_source_set && |
298 is_component_build) { | 305 is_component_build) { |
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351 ":$action_name", | 358 ":$action_name", |
352 ] | 359 ] |
353 | 360 |
354 # This will link any libraries in the deps (the use of invoker.deps in the | 361 # This will link any libraries in the deps (the use of invoker.deps in the |
355 # action won't link it). | 362 # action won't link it). |
356 if (defined(invoker.deps)) { | 363 if (defined(invoker.deps)) { |
357 deps += invoker.deps | 364 deps += invoker.deps |
358 } | 365 } |
359 } | 366 } |
360 } | 367 } |
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