YugabyteDB (2.13.0.0-b42, bfc6a6643e7399ac8a0e81d06a3ee6d6571b33ab)

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// 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

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// specific language governing permissions and limitations

// under the License.

//

// The following only applies to changes made to this file as part of YugaByte development.

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// Portions Copyright (c) YugaByte, Inc.

//

// 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

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// http://www.apache.org/licenses/LICENSE-2.0

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// 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.

//

// Simple protoc plugin which inserts some code at the top of each generated protobuf.

// Currently, this just adds an include of protobuf-annotations.h, a file which hooks up

// the protobuf concurrency annotations to our TSAN annotations.

#include <google/protobuf/compiler/code_generator.h>

#include <google/protobuf/compiler/plugin.h>

#include <google/protobuf/descriptor.h>

#include <google/protobuf/io/printer.h>

#include <google/protobuf/io/zero_copy_stream.h>

#include "yb/gutil/strings/strip.h"

#include "yb/gutil/strings/substitute.h"

using google::protobuf::io::ZeroCopyOutputStream;

using google::protobuf::io::Printer;

namespace yb {

static const char* const kIncludeToInsert = "#include \"yb/util/protobuf-annotations.h\"\n";

static const char* const kProtoExtension = ".proto";

class InsertAnnotations : public ::google::protobuf::compiler::CodeGenerator {

  virtual bool Generate(const google::protobuf::FileDescriptor *file,

                        const std::string &/*param*/,

                        google::protobuf::compiler::GeneratorContext *gen_context,

                        std::string *error) const override {

    // Determine the file name we will substitute into.

    string path_no_extension;

    if (!TryStripSuffixString(file->name(), kProtoExtension, &path_no_extension)) {

      *error = strings::Substitute("file name $0 did not end in $1", file->name(), kProtoExtension);

      return false;

    }

    string pb_file = path_no_extension + ".pb.cc";

    // Actually insert the new #include

    std::unique_ptr<ZeroCopyOutputStream> inserter(gen_context->OpenForInsert(pb_file, "includes"));

    Printer printer(inserter.get(), '$');

    printer.Print(kIncludeToInsert);

    if (printer.failed()) {

      *error = "Failed to print to output file";

      return false;

    }

    return true;

  }

};

} // namespace yb

int main(int argc, char *argv[]) {

  yb::InsertAnnotations generator;

  return google::protobuf::compiler::PluginMain(argc, argv, &generator);

}