Is it possible to build grpc for server/client only?

[Karol Bisztyga]

Hey!

I'm building grpc c++ for android and I noticed a significant increase in the build folder's size. Is there any way I can reduce that? On android I only want to use grpc client, the server is remote, so is it possible to build the grpc for the client only? I know [you implemented generating code in such a manner](https://github.com/grpc/grpc/pull/6284) but that's just generating. I've noticed, in examples you have to include `#include <grpcpp/grpcpp.h>` so it looks like that may be not possible.

The size of the build folder with grpc is 4.5GB.

Without it - 323MB.

[Here's my CMakeLists.txt](https://github.com/karol-bisztyga/rnfbjni/blob/grpc/android/app/CMakeLists.txt).

I also tried to pass the following flags to `cmake`:

```

-DgRPC_BUILD_CSHARP_EXT=OFF \

-DgRPC_BUILD_GRPC_CSHARP_PLUGIN=OFF \

-DgRPC_BUILD_GRPC_NODE_PLUGIN=OFF \

-DgRPC_BUILD_GRPC_OBJECTIVE_C_PLUGIN=OFF \

-DgRPC_BUILD_GRPC_PHP_PLUGIN=OFF \

-DgRPC_BUILD_GRPC_PYTHON_PLUGIN=OFF \

-DgRPC_BUILD_GRPC_RUBY_PLUGIN=OFF \

-DgRPC_BUILD_TESTS=OFF \

```

and it saved ~15MB of the disk space, but it's still too much.

Am I doing something wrong? I used those two examples when working on this:

- [https://github.com/grpc/grpc/blob/master/examples/cpp/helloworld/CMakeLists.txt](https://github.com/grpc/grpc/blob/master/examples/cpp/helloworld/CMakeLists.txt)

- [https://github.com/grpc/grpc/blob/master/examples/android/helloworld/app/CMakeLists.txt](https://github.com/grpc/grpc/blob/master/examples/android/helloworld/app/CMakeLists.txt)

Is there a better way to build this on android?

Thanks!