add Retcode

op.js

@@ -471,6 +471,7 @@ function clean_proto_gen() {
 
   // all
   files.forEach(function (file) {
+    var todoremove = false;
     // main file
     var found = json_gc_needed.find((j) => file.match(j.name));
     if (found) {
@@ -482,14 +483,22 @@ function clean_proto_gen() {
         //console.log("Files sub are required: "+file);
       } else {
         found_needclean++;
-        try {
-          fs.unlinkSync(file);
-          //file removed
-        } catch (err) {
-          console.error(err);
+        if (file.match("Retcode")) {
+          console.log("found");
+        } else {
+          todoremove = true;
         }
       }
     }
+
+    if (todoremove) {
+      try {
+        fs.unlinkSync(file);
+        //file removed
+      } catch (err) {
+        console.error(err);
+      }
+    }
   });
 
   //console.log(file_toaddmore);