anchor.diff:  /// Local execution of a map operation, returning the result
   Future<String> _localExecuteMap(String msg, Map<String, String> sources) async {
     log.trace("_localExecuteMap: $msg");
  +  log.trace("Sources: ${sources.keys.toList()}");
     String response = await eval.eval(sources, msg);
     return new Future.value(response);
   }
   
   Future<String> _localExecuteReducer(String msg, Map<String, String> sources) async {
     log.trace("_localExecuteReducer: $msg");
  +  log.trace("Sources: ${sources.keys.toList()}");
  +
     String response = await eval.eval(sources, msg);
     return new Future.value(response);
   }
  
positive.code: 
  case '/sampleInput':
    res.add(UTF8.encode(JSON.encode(sampleInput)));
    res.close();
    break;
  case '/sources':
    Map<String, String> sources = {};
    sources["pubspec.yaml"] = PUBSPEC_SRC;
    sources["entry.dart"] = SRC;
    res.add(UTF8.encode(JSON.encode(sources)));
    res.close();
    break;
  case '/nodesStatus':
  
negative.code:     case "/taskStats":
        res.write(await _getTaskStatus());
        break;
      case '/sources':
        Map<String, String> sources = {};
  
        for (var fse in new io.Directory("demo").listSync()) {
          if (!(fse is io.File)) continue;
  
          var name = path_lib.basename(fse.path);
          var ext = path_lib.extension(fse.path);
  
          if (ext != ".dart" && ext != ".yaml") continue;
  
          var source = fse.readAsStringSync();
          sources[name] = source;
        }
  
        res.add(UTF8.encode(JSON.encode(sources)));
        res.close();
        break;
  
  /*  =======================================
      LEGACY GET METHODS FROM THE MOCK SERVER
  