Protobuf: added support of another languages in generated protoc executable

proto/compiler/google/src/google/protobuf/compiler/kotlin/src/main.cc

@@ -12,15 +12,60 @@
 
 int main(int argc, const char* const * argv) {
   google::protobuf::compiler::CommandLineInterface cli;
+  cli.AllowPlugins("protoc-");
 
-  // Support generation of C++ source and headers.
+  // Proto2 C++
   google::protobuf::compiler::cpp::CppGenerator cpp_generator;
-  cli.RegisterGenerator("--cpp_out", &cpp_generator,
-    "Generate C++ source and header.");
+  cli.RegisterGenerator("--cpp_out", "--cpp_opt", &cpp_generator,
+                        "Generate C++ header and source.");
 
+  // Proto2 Java
+  google::protobuf::compiler::java::JavaGenerator java_generator;
+  cli.RegisterGenerator("--java_out", &java_generator,
+                        "Generate Java source file.");
+
+
+  // Proto2 Python
+  google::protobuf::compiler::python::Generator py_generator;
+  cli.RegisterGenerator("--python_out", &py_generator,
+                        "Generate Python source file.");
+
+  // Java Nano
+  google::protobuf::compiler::javanano::JavaNanoGenerator javanano_generator;
+  cli.RegisterGenerator("--javanano_out", &javanano_generator,
+                        "Generate Java Nano source file.");
+
+  // TODO(teboring): Add it back when php implementation is ready
+  // PHP
+  // google::protobuf::compiler::php::Generator php_generator;
+  // cli.RegisterGenerator("--php_out", &php_generator,
+  //                      "Generate PHP source file.");
+
+  // Ruby
+  google::protobuf::compiler::ruby::Generator rb_generator;
+  cli.RegisterGenerator("--ruby_out", &rb_generator,
+                        "Generate Ruby source file.");
+
+  // CSharp
+  google::protobuf::compiler::csharp::Generator csharp_generator;
+  cli.RegisterGenerator("--csharp_out", "--csharp_opt", &csharp_generator,
+                        "Generate C# source file.");
+
+  // Objective C
+  google::protobuf::compiler::objectivec::ObjectiveCGenerator objc_generator;
+  cli.RegisterGenerator("--objc_out", "--objc_opt", &objc_generator,
+                        "Generate Objective C header and source.");
+
+  // JavaScript
+  google::protobuf::compiler::js::Generator js_generator;
+  cli.RegisterGenerator("--js_out", &js_generator,
+                        "Generate JavaScript source.");
+
+  // Kotlin
   google::protobuf::compiler::kotlin::FileGenerator kotlinGenerator;
   cli.RegisterGenerator("--kotlin_out", &kotlinGenerator,
-    "Generate Foo file.");
-
+                        "Generate Kotlin source file.");
+  
   return cli.Run(argc, argv);
+
 }