fix bug

main.go

@@ -26,14 +26,21 @@ func main() {
 	protogen.Options{}.Run(func(gen *protogen.Plugin) error {
 		gen.SupportedFeatures = uint64(pluginpb.CodeGeneratorResponse_FEATURE_PROTO3_OPTIONAL)
 
+		// 以代码生成根目录为基准；gen.Files 无 service 时不创建 internal/{server,logic}
+		serviceCount := 0
+		for _, f := range gen.Files {
+			serviceCount += len(f.Services)
+		}
+		if serviceCount == 0 {
+			return nil
+		}
+
 		if !utils.PathExists("./internal") {
 			os.MkdirAll("./internal", 0755)
 		}
-
 		if !utils.PathExists("./internal/server") {
 			os.MkdirAll("./internal/server", 0755)
 		}
-
 		if !utils.PathExists("./internal/logic") {
 			os.MkdirAll("./internal/logic", 0755)
 		}
@@ -47,13 +54,7 @@ func main() {
 			}
 		}
 
-		err := generateNewServerFile(ServicesName)
-		if err != nil {
-			return err
-
-		}
-
-		return nil
+		return generateNewServerFile(ServicesName)
 	})
 }