Fix parameters missing from services (#381)

src/betterproto/plugin/parser.py

@@ -74,14 +74,6 @@ def generate_code(request: CodeGeneratorRequest) -> CodeGeneratorResponse:
     request_data = PluginRequestCompiler(plugin_request_obj=request)
     # Gather output packages
     for proto_file in request.proto_file:
-        if (
-            proto_file.package == "google.protobuf"
-            and "INCLUDE_GOOGLE" not in plugin_options
-        ):
-            # If not INCLUDE_GOOGLE,
-            # skip re-compiling Google's well-known types
-            continue
-
         output_package_name = proto_file.package
         if output_package_name not in request_data.output_packages:
             # Create a new output if there is no output for this package
@@ -91,6 +83,14 @@ def generate_code(request: CodeGeneratorRequest) -> CodeGeneratorResponse:
         # Add this input file to the output corresponding to this package
         request_data.output_packages[output_package_name].input_files.append(proto_file)
 
+        if (
+            proto_file.package == "google.protobuf"
+            and "INCLUDE_GOOGLE" not in plugin_options
+        ):
+            # If not INCLUDE_GOOGLE,
+            # skip outputting Google's well-known types
+            request_data.output_packages[output_package_name].output = False
+
     # Read Messages and Enums
     # We need to read Messages before Services in so that we can
     # get the references to input/output messages for each service
@@ -113,6 +113,8 @@ def generate_code(request: CodeGeneratorRequest) -> CodeGeneratorResponse:
     # Generate output files
     output_paths: Set[pathlib.Path] = set()
     for output_package_name, output_package in request_data.output_packages.items():
+        if not output_package.output:
+            continue
 
         # Add files to the response object
         output_path = pathlib.Path(*output_package_name.split("."), "__init__.py")