bazelbuild
Allow `_V2` protoc option
I would like to be able to generate V2 protobuf code (https://github.com/grpc/grpc-swift/blob/f3380d217ebd7f5a939115736bcc19fe1752fee9/Plugins/GRPCSwiftPlugin/plugin.swift#L73). I was able to do it manually like the following:
protoc --swift_out=. \
--swift_opt=FileNaming=DropPath \
--grpc-swift_out=. \
--grpc-swift_opt=Client=true,Server=false,FileNaming=DropPath,_V2=true \
proto/my.proto
but it seems the rules_swift doesn't accept this option (https://github.com/bazelbuild/rules_swift/blob/86dc0f046269b3001f6f20cec38342c03120a209/proto/compilers/swift_proto_compiler_macros.bzl#L39).
would it be possible to add it?
@Clement-Jean @keith You can make your own swift_proto_compiler target and plug that into the swift_proto_library rule in order to customize the protoc binary and plugin.
I'm able to use this together with rules_swift_package_manager to generate GRPC-swift V2 protos.
If you want to use the included protoc and grpc-swift in the rules_swift repo, those would need to be updated.
TBH I really would like to get rid of all the hardcoded BUILD.overlay files in the rules_swift repo so we don't need to keep updating them. @keith maybe there's a way we could use prebuilt protoc and grpc plugin binaries?
