cmd/protoc-gen-go-grpc: add protoc and protoc-gen-go-grpc versions to top comment (#4313)

balancer/grpclb/grpc_lb_v1/load_balancer_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: grpc/lb/v1/load_balancer.proto
 
 package grpc_lb_v1
 

balancer/rls/internal/proto/grpc_lookup_v1/rls_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: grpc/lookup/v1/rls.proto
 
 package grpc_lookup_v1
 

channelz/grpc_channelz_v1/channelz_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: grpc/channelz/v1/channelz.proto
 
 package grpc_channelz_v1
 

cmd/protoc-gen-go-grpc/grpc.go

@@ -24,7 +24,6 @@ import (
 	"strings"
 
 	"google.golang.org/protobuf/compiler/protogen"
-
 	"google.golang.org/protobuf/types/descriptorpb"
 )
 
@@ -43,6 +42,14 @@ func generateFile(gen *protogen.Plugin, file *protogen.File) *protogen.Generated
 	filename := file.GeneratedFilenamePrefix + "_grpc.pb.go"
 	g := gen.NewGeneratedFile(filename, file.GoImportPath)
 	g.P("// Code generated by protoc-gen-go-grpc. DO NOT EDIT.")
+	g.P("// versions:")
+	g.P("// - protoc-gen-go-grpc v", version)
+	g.P("// - protoc             ", protocVersion(gen))
+	if file.Proto.GetOptions().GetDeprecated() {
+		g.P("// ", file.Desc.Path(), " is a deprecated file.")
+	} else {
+		g.P("// source: ", file.Desc.Path())
+	}
 	g.P()
 	g.P("package ", file.GoPackageName)
 	g.P()
@@ -50,6 +57,18 @@ func generateFile(gen *protogen.Plugin, file *protogen.File) *protogen.Generated
 	return g
 }
 
+func protocVersion(gen *protogen.Plugin) string {
+	v := gen.Request.GetCompilerVersion()
+	if v == nil {
+		return "(unknown)"
+	}
+	var suffix string
+	if s := v.GetSuffix(); s != "" {
+		suffix = "-" + s
+	}
+	return fmt.Sprintf("v%d.%d.%d%s", v.GetMajor(), v.GetMinor(), v.GetPatch(), suffix)
+}
+
 // generateFileContent generates the gRPC service definitions, excluding the package statement.
 func generateFileContent(gen *protogen.Plugin, file *protogen.File, g *protogen.GeneratedFile) {
 	if len(file.Services) == 0 {

credentials/alts/internal/proto/grpc_gcp/handshaker_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: grpc/gcp/handshaker.proto
 
 package grpc_gcp
 

credentials/tls/certprovider/meshca/internal/v1/meshca_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: istio/google/security/meshca/v1/meshca.proto
 
 package google_security_meshca_v1
 

examples/features/proto/echo/echo_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: examples/features/proto/echo/echo.proto
 
 package echo
 

examples/helloworld/helloworld/helloworld_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: examples/helloworld/helloworld/helloworld.proto
 
 package helloworld
 

examples/route_guide/routeguide/route_guide_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: examples/route_guide/routeguide/route_guide.proto
 
 package routeguide
 

health/grpc_health_v1/health_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: grpc/health/v1/health.proto
 
 package grpc_health_v1
 

interop/grpc_testing/benchmark_service_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: grpc/testing/benchmark_service.proto
 
 package grpc_testing
 

interop/grpc_testing/report_qps_scenario_service_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: grpc/testing/report_qps_scenario_service.proto
 
 package grpc_testing
 

interop/grpc_testing/test_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: grpc/testing/test.proto
 
 package grpc_testing
 

interop/grpc_testing/worker_service_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: grpc/testing/worker_service.proto
 
 package grpc_testing
 

profiling/proto/service_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: profiling/proto/service.proto
 
 package proto
 

reflection/grpc_reflection_v1alpha/reflection_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: reflection/grpc_reflection_v1alpha/reflection.proto
 
 package grpc_reflection_v1alpha
 

reflection/grpc_testing/test_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: reflection/grpc_testing/test.proto
 
 package grpc_testing
 

stress/grpc_testing/metrics_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: stress/grpc_testing/metrics.proto
 
 package grpc_testing
 

test/grpc_testing/test_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc             v3.14.0
+// source: test/grpc_testing/test.proto
 
 package grpc_testing