httpbody.proto has incorrect go_package

[ideasculptor]

Steps you follow to reproduce the error:

1. When NOT using protobuf APIv2, I can't rely on the google.golang.org/genproto package for the protoc-compiled version of the annotations.proto, http.proto, and httpbody.proto files. Since I'm using grpc, I'm forced to APIv1 for now, which means I need to compile them myself.
2. protoc --proto_path . --go_out=Mgoogle/protobuf/descriptor.proto=github.com/golang/protobuf/protoc-gen-go/descriptor:. google/api/*.proto
3. When I compile against the generated files, I get an error from Go that there is more than one package in the same directory.
4. This is totally consistent with the Buf style guide, which also suggests all .proto files in the same directory should have the same go_package.

Simple fix is to adjust the go_package line in httpbody.proto to match the go_package of the other two protos in google/api

[johanbrandhorst]

Hi, thanks for your issue. You should be able to depend on an older version of google.golang.org/genproto and not have to generate files from our third_party package. We don't intend to support this use case. I personally use the grpc-gateway with APIv1 and never had to generate from these files, they're only there so that your proto imports can be resolved.

In any case, we can't change the package of httpbody.proto, since it's sourced from https://github.com/googleapis/googleapis/blob/master/google/api/httpbody.proto.

Why don't you join the #grpc-gateway channel on Gophers slack and we can debug this there. This is not the right forum for it.