Merge pull request #2250 from jcanizales/bazel-proto-rpc

Add Bazel target for Objective-C proto-gRPC runtime

BUILD

@@ -1259,3 +1259,21 @@ objc_bundle_library(
     name = "gRPCCertificates",
     resources = ["etc/roots.pem"],
 )
+
+proto_objc_rpc_path = objc_path + "/ProtoRPC"
+
+objc_library(
+  name = "proto_objc_rpc",
+  hdrs = glob([
+    proto_objc_rpc_path + "/*.h",
+  ]),
+  srcs = glob([
+    proto_objc_rpc_path + "/*.m",
+  ]),
+  includes = [objc_path],
+  deps = [
+    ":grpc_client",
+    ":rx_library",
+    "//external:protobuf_objc",
+  ],
+)

src/objective-c/ProtoRPC/ProtoRPC.m

@@ -33,7 +33,7 @@
 
 #import "ProtoRPC.h"
 
-#import <Protobuf/GPBProtocolBuffers.h>
+#import <GPBProtocolBuffers.h>
 #import <RxLibrary/GRXWriteable.h>
 #import <RxLibrary/GRXWriter.h>
 #import <RxLibrary/GRXWriter+Transformations.h>
@@ -66,6 +66,8 @@
   // A writer that serializes the proto messages to send.
   id<GRXWriter> bytesWriter =
       [[[GRXWriter alloc] initWithWriter:requestsWriter] map:^id(GPBMessage *proto) {
+        // TODO(jcanizales): Fail with an understandable error message if the requestsWriter isn't
+        // sending GPBMessages.
         return [proto data];
       }];
   if ((self = [super initWithHost:host method:method requestsWriter:bytesWriter])) {

templates/BUILD.template

@@ -205,3 +205,21 @@ objc_bundle_library(
     name = "gRPCCertificates",
     resources = ["etc/roots.pem"],
 )
+
+proto_objc_rpc_path = objc_path + "/ProtoRPC"
+
+objc_library(
+  name = "proto_objc_rpc",
+  hdrs = glob([
+    proto_objc_rpc_path + "/*.h",
+  ]),
+  srcs = glob([
+    proto_objc_rpc_path + "/*.m",
+  ]),
+  includes = [objc_path],
+  deps = [
+    ":grpc_client",
+    ":rx_library",
+    "//external:protobuf_objc",
+  ],
+)