compiler: Add option to disable version output

If the option becomes popular, we can just remove the version.

benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/BenchmarkServiceGrpc.java

@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: services.proto")
 public final class BenchmarkServiceGrpc {
 

benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/ReportQpsScenarioServiceGrpc.java

@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: services.proto")
 public final class ReportQpsScenarioServiceGrpc {
 

benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/WorkerServiceGrpc.java

@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: services.proto")
 public final class WorkerServiceGrpc {
 

build.gradle

@@ -130,6 +130,7 @@ subprojects {
                       // To generate deprecated interfaces and static bindService method,
                       // turn the enable_deprecated option to true below:
                       option 'enable_deprecated=false'
+                      option 'noversion'
                     }
                   }
                 }

compiler/src/java_plugin/cpp/java_generator.cpp

@@ -1023,14 +1023,16 @@ static void PrintService(const ServiceDescriptor* service,
                          std::map<string, string>* vars,
                          Printer* p,
                          ProtoFlavor flavor,
-                         bool enable_deprecated) {
+                         bool enable_deprecated,
+                         bool disable_version) {
   (*vars)["service_name"] = service->name();
   (*vars)["file_name"] = service->file()->name();
   (*vars)["service_class_name"] = ServiceClassName(service);
+  (*vars)["grpc_version"] = "";
   #ifdef GRPC_VERSION
+  if (!disable_version) {
     (*vars)["grpc_version"] = " (version " XSTR(GRPC_VERSION) ")";
-  #else
+  }
-    (*vars)["grpc_version"] = "";
   #endif
   // TODO(nmittler): Replace with WriteServiceDocComment once included by protobuf distro.
   GrpcWriteServiceDocComment(p, service);
@@ -1168,7 +1170,8 @@ void PrintImports(Printer* p, bool generate_nano) {
 void GenerateService(const ServiceDescriptor* service,
                      google::protobuf::io::ZeroCopyOutputStream* out,
                      ProtoFlavor flavor,
-                     bool enable_deprecated) {
+                     bool enable_deprecated,
+                     bool disable_version) {
   // All non-generated classes must be referred by fully qualified names to
   // avoid collision with generated classes.
   std::map<string, string> vars;
@@ -1212,7 +1215,7 @@ void GenerateService(const ServiceDescriptor* service,
   if (!vars["Package"].empty()) {
     vars["Package"].append(".");
   }
-  PrintService(service, &vars, &printer, flavor, enable_deprecated);
+  PrintService(service, &vars, &printer, flavor, enable_deprecated, disable_version);
 }
 
 string ServiceJavaPackage(const FileDescriptor* file, bool nano) {

compiler/src/java_plugin/cpp/java_generator.h

@@ -50,7 +50,8 @@ string ServiceClassName(const google::protobuf::ServiceDescriptor* service);
 void GenerateService(const google::protobuf::ServiceDescriptor* service,
                      google::protobuf::io::ZeroCopyOutputStream* out,
                      ProtoFlavor flavor,
-                     bool enable_deprecated);
+                     bool enable_deprecated,
+                     bool disable_version);
 
 }  // namespace java_grpc_generator
 

compiler/src/java_plugin/cpp/java_plugin.cpp

@@ -38,6 +38,7 @@ class JavaGrpcGenerator : public google::protobuf::compiler::CodeGenerator {
         java_grpc_generator::ProtoFlavor::NORMAL;
 
     bool enable_deprecated = false;
+    bool disable_version = false;
     for (size_t i = 0; i < options.size(); i++) {
       if (options[i].first == "nano") {
         flavor = java_grpc_generator::ProtoFlavor::NANO;
@@ -45,6 +46,8 @@ class JavaGrpcGenerator : public google::protobuf::compiler::CodeGenerator {
         flavor = java_grpc_generator::ProtoFlavor::LITE;
       } else if (options[i].first == "enable_deprecated") {
         enable_deprecated = options[i].second == "true";
+      } else if (options[i].first == "noversion") {
+        disable_version = true;
       }
     }
 
@@ -57,7 +60,8 @@ class JavaGrpcGenerator : public google::protobuf::compiler::CodeGenerator {
           + java_grpc_generator::ServiceClassName(service) + ".java";
       std::unique_ptr<google::protobuf::io::ZeroCopyOutputStream> output(
           context->Open(filename));
-      java_grpc_generator::GenerateService(service, output.get(), flavor, enable_deprecated);
+      java_grpc_generator::GenerateService(
+          service, output.get(), flavor, enable_deprecated, disable_version);
     }
     return true;
   }

grpclb/src/generated/main/grpc/io/grpc/grpclb/LoadBalancerGrpc.java

@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: load_balancer.proto")
 public final class LoadBalancerGrpc {
 

interop-testing/src/generated/main/grpc/io/grpc/testing/integration/MetricsServiceGrpc.java

@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: io/grpc/testing/integration/metrics.proto")
 public final class MetricsServiceGrpc {
 

interop-testing/src/generated/main/grpc/io/grpc/testing/integration/ReconnectServiceGrpc.java

@@ -21,7 +21,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: io/grpc/testing/integration/test.proto")
 public final class ReconnectServiceGrpc {
 

interop-testing/src/generated/main/grpc/io/grpc/testing/integration/TestServiceGrpc.java

@@ -22,7 +22,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: io/grpc/testing/integration/test.proto")
 public final class TestServiceGrpc {
 

interop-testing/src/generated/main/grpc/io/grpc/testing/integration/UnimplementedServiceGrpc.java

@@ -22,7 +22,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: io/grpc/testing/integration/test.proto")
 public final class UnimplementedServiceGrpc {
 

services/src/generated/main/grpc/io/grpc/health/v1/HealthGrpc.java

@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: health.proto")
 public final class HealthGrpc {
 

services/src/generated/main/grpc/io/grpc/instrumentation/v1alpha/MonitoringGrpc.java

@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: grpc/instrumentation/v1alpha/monitoring.proto")
 public final class MonitoringGrpc {
 

services/src/generated/main/grpc/io/grpc/reflection/v1alpha/ServerReflectionGrpc.java

@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: io/grpc/reflection/v1alpha/reflection.proto")
 public final class ServerReflectionGrpc {
 

services/src/generated/test/grpc/io/grpc/reflection/testing/AnotherDynamicServiceGrpc.java

@@ -21,7 +21,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: io/grpc/reflection/testing/dynamic_reflection_test.proto")
 public final class AnotherDynamicServiceGrpc {
 

services/src/generated/test/grpc/io/grpc/reflection/testing/DynamicServiceGrpc.java

@@ -21,7 +21,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: io/grpc/reflection/testing/dynamic_reflection_test.proto")
 public final class DynamicServiceGrpc {
 

services/src/generated/test/grpc/io/grpc/reflection/testing/ReflectableServiceGrpc.java

@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: io/grpc/reflection/testing/reflection_test.proto")
 public final class ReflectableServiceGrpc {
 

testing-proto/src/generated/main/grpc/io/grpc/testing/protobuf/SimpleServiceGrpc.java

@@ -21,7 +21,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.7.0-SNAPSHOT)",
+    value = "by gRPC proto compiler",
     comments = "Source: io/grpc/testing/protobuf/simpleservice.proto")
 public final class SimpleServiceGrpc {