minor changes for generator

* allow to split client and server generation
* allow to override options for handler

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

main.go

@@ -12,7 +12,7 @@ import (
 var (
 	flagDebug      = flag.Bool("debug", false, "")
 	flagStandalone = flag.Bool("standalone", false, "")
-	flagComponents = flag.String("components", "micro|rpc", "")
+	flagComponents = flag.String("components", "micro|rpc|client|server", "")
 )
 
 func main() {
@@ -39,15 +39,27 @@ func (g *Generator) Generate(plugin *protogen.Plugin) error {
 	g.components = *flagComponents
 	plugin.SupportedFeatures = uint64(pluginpb.CodeGeneratorResponse_FEATURE_PROTO3_OPTIONAL)
 
+	var genClient bool
+	var genServer bool
+
+	if strings.Contains(g.components, "server") {
+		genServer = true
+	}
+	if strings.Contains(g.components, "client") {
+		genClient = true
+	}
+
 	// Protoc passes a slice of File structs for us to process
 	for _, component := range strings.Split(g.components, "|") {
 		switch component {
+		case "server", "client":
+			continue
 		case "micro":
-			err = g.microGenerate(component, plugin)
+			err = g.microGenerate(component, plugin, genClient, genServer)
 		case "http":
-			err = g.httpGenerate(component, plugin)
+			err = g.httpGenerate(component, plugin, genClient, genServer)
 		case "grpc", "rpc":
-			err = g.rpcGenerate("rpc", plugin)
+			err = g.rpcGenerate("rpc", plugin, genClient, genServer)
 		case "gorilla":
 			err = g.gorillaGenerate(component, plugin)
 		case "chi":