142 lines
4.9 KiB
Plaintext
142 lines
4.9 KiB
Plaintext
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# Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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#
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# Use of this source code is governed by a BSD-style license
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# that can be found in the LICENSE file in the root of the source
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# tree. An additional intellectual property rights grant can be found
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# in the file PATENTS. All contributing project authors may
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# be found in the AUTHORS file in the root of the source tree.
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# Copied from Chromium's src/build/protoc.gypi
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#
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# It was necessary to copy this file to WebRTC, because the path to
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# build/common.gypi is different for the standalone and Chromium builds. Gyp
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# doesn't permit conditional inclusion or variable expansion in include paths.
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# http://code.google.com/p/gyp/wiki/InputFormatReference#Including_Other_Files
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#
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# Local changes:
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# * Removed <(DEPTH) from include_dir due to difficulties with generated
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# downstream code.
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# This file is meant to be included into a target to provide a rule
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# to invoke protoc in a consistent manner. For Java-targets, see
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# protoc_java.gypi.
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#
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# To use this, create a gyp target with the following form:
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# {
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# 'target_name': 'my_proto_lib',
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# 'type': 'static_library',
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# 'sources': [
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# 'foo.proto',
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# 'bar.proto',
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# ],
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# 'variables': {
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# # Optional, see below: 'proto_in_dir': '.'
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# 'proto_out_dir': 'dir/for/my_proto_lib'
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# },
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# 'includes': ['path/to/this/gypi/file'],
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# }
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# If necessary, you may add normal .cc files to the sources list or other gyp
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# dependencies. The proto headers are guaranteed to be generated before any
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# source files, even within this target, are compiled.
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#
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# The 'proto_in_dir' variable must be the relative path to the
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# directory containing the .proto files. If left out, it defaults to '.'.
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#
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# The 'proto_out_dir' variable specifies the path suffix that output
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# files are generated under. Targets that gyp-depend on my_proto_lib
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# will be able to include the resulting proto headers with an include
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# like:
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# #include "dir/for/my_proto_lib/foo.pb.h"
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#
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# If you need to add an EXPORT macro to a protobuf's c++ header, set the
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# 'cc_generator_options' variable with the value: 'dllexport_decl=FOO_EXPORT:'
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# e.g. 'dllexport_decl=BASE_EXPORT:'
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#
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# It is likely you also need to #include a file for the above EXPORT macro to
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# work. You can do so with the 'cc_include' variable.
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# e.g. 'base/base_export.h'
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#
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# Implementation notes:
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# A proto_out_dir of foo/bar produces
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# <(SHARED_INTERMEDIATE_DIR)/protoc_out/foo/bar/{file1,file2}.pb.{cc,h}
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# <(SHARED_INTERMEDIATE_DIR)/pyproto/foo/bar/{file1,file2}_pb2.py
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{
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'variables': {
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'protoc_wrapper': '<(DEPTH)/tools/protoc_wrapper/protoc_wrapper.py',
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'cc_dir': '<(SHARED_INTERMEDIATE_DIR)/protoc_out/<(proto_out_dir)',
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'py_dir': '<(PRODUCT_DIR)/pyproto/<(proto_out_dir)',
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'cc_generator_options%': '',
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'cc_include%': '',
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'proto_in_dir%': '.',
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'conditions': [
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['use_system_protobuf==0', {
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'protoc': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)protoc<(EXECUTABLE_SUFFIX)',
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}, { # use_system_protobuf==1
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'protoc': '<!(which protoc)',
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}],
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],
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},
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'rules': [
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{
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'rule_name': 'genproto',
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'extension': 'proto',
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'inputs': [
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'<(protoc_wrapper)',
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'<(protoc)',
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],
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'outputs': [
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'<(py_dir)/<(RULE_INPUT_ROOT)_pb2.py',
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'<(cc_dir)/<(RULE_INPUT_ROOT).pb.cc',
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'<(cc_dir)/<(RULE_INPUT_ROOT).pb.h',
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],
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'action': [
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'python',
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'<(protoc_wrapper)',
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'--include',
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'<(cc_include)',
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'--protobuf',
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'<(cc_dir)/<(RULE_INPUT_ROOT).pb.h',
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# Using the --arg val form (instead of --arg=val) allows gyp's msvs rule
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# generation to correct 'val' which is a path.
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'--proto-in-dir','<(proto_in_dir)',
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# Naively you'd use <(RULE_INPUT_PATH) here, but protoc requires
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# --proto_path is a strict prefix of the path given as an argument.
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'--proto-in-file','<(RULE_INPUT_ROOT)<(RULE_INPUT_EXT)',
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'--use-system-protobuf=<(use_system_protobuf)',
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'--',
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'<(protoc)',
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'--cpp_out', '<(cc_generator_options)<(cc_dir)',
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'--python_out', '<(py_dir)',
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],
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'message': 'Generating C++ and Python code from <(RULE_INPUT_PATH)',
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'process_outputs_as_sources': 1,
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},
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],
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'include_dirs': [
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'<(SHARED_INTERMEDIATE_DIR)/protoc_out',
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],
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'direct_dependent_settings': {
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'include_dirs': [
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'<(SHARED_INTERMEDIATE_DIR)/protoc_out',
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]
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},
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# This target exports a hard dependency because it generates header
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# files.
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'hard_dependency': 1,
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'conditions': [
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['build_protobuf==1', {
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'dependencies': [
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'<(DEPTH)/third_party/protobuf/protobuf.gyp:protoc#host',
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'<(DEPTH)/third_party/protobuf/protobuf.gyp:protobuf_lite',
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],
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'export_dependent_settings': [
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# The generated headers reference headers within protobuf_lite,
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# so dependencies must be able to find those headers too.
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'<(DEPTH)/third_party/protobuf/protobuf.gyp:protobuf_lite',
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],
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}],
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],
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}
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