Fix gRPC health package clash (#270)

Fixes #267

Author: cretz

scripts/_proto/grpc/health/v1/health.proto

@@ -0,0 +1,64 @@
+// Copyright 2015 The gRPC Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// The canonical version of this proto can be found at
+// https://github.com/grpc/grpc-proto/blob/master/grpc/health/v1/health.proto
+
+syntax = "proto3";
+
+// We have to alter this to prevent gRPC health clash
+package temporal.grpc.health.v1;
+
+option csharp_namespace = "Grpc.Health.V1";
+option go_package = "google.golang.org/grpc/health/grpc_health_v1";
+option java_multiple_files = true;
+option java_outer_classname = "HealthProto";
+option java_package = "io.grpc.health.v1";
+
+message HealthCheckRequest {
+  string service = 1;
+}
+
+message HealthCheckResponse {
+  enum ServingStatus {
+    UNKNOWN = 0;
+    SERVING = 1;
+    NOT_SERVING = 2;
+    SERVICE_UNKNOWN = 3;  // Used only by the Watch method.
+  }
+  ServingStatus status = 1;
+}
+
+service Health {
+  // If the requested service is unknown, the call will fail with status
+  // NOT_FOUND.
+  rpc Check(HealthCheckRequest) returns (HealthCheckResponse);
+
+  // Performs a watch for the serving status of the requested service.
+  // The server will immediately send back a message indicating the current
+  // serving status.  It will then subsequently send a new message whenever
+  // the service's serving status changes.
+  //
+  // If the requested service is unknown when the call is received, the
+  // server will send a message setting the serving status to
+  // SERVICE_UNKNOWN but will *not* terminate the call.  If at some
+  // future point, the serving status of the service becomes known, the
+  // server will send a new message with the service's serving status.
+  //
+  // If the call terminates with status UNIMPLEMENTED, then clients
+  // should assume this method is not supported and should not retry the
+  // call.  If the call terminates with any other status (including OK),
+  // clients should retry the call with appropriate exponential backoff.
+  rpc Watch(HealthCheckRequest) returns (stream HealthCheckResponse);
+}

scripts/gen_protos.py

@@ -12,16 +12,17 @@
 proto_dir = base_dir / "temporalio" / "bridge" / "sdk-core" / "protos"
 api_proto_dir = proto_dir / "api_upstream"
 core_proto_dir = proto_dir / "local"
-health_proto_dir = proto_dir / "grpc"
 testsrv_proto_dir = proto_dir / "testsrv_upstream"
 test_proto_dir = base_dir / "tests"
 additional_proto_dir = base_dir / "scripts" / "_proto"
+health_proto_dir = additional_proto_dir / "grpc"
 
 # Exclude testsrv dependencies protos
 proto_paths = [
     v
     for v in proto_dir.glob("**/*.proto")
     if not str(v).startswith(str(testsrv_proto_dir / "dependencies"))
+    and not "health" in str(v)
 ]
 proto_paths.extend(test_proto_dir.glob("**/*.proto"))
 proto_paths.extend(additional_proto_dir.glob("**/*.proto"))

temporalio/bridge/proto/health/v1/health_pb2.py

@@ -1,9 +1,7 @@
 """
 @generated by mypy-protobuf.  Do not edit manually!
 isort:skip_file
-The canonical version of this proto can be found at
-https://github.com/grpc/grpc-proto/blob/master/grpc/health/v1/health.proto
-"""
+We have to alter this to prevent gRPC health clash"""
 import builtins
 import google.protobuf.descriptor
 import google.protobuf.internal.enum_type_wrapper