if (rootDirectory != null)
result = result.withRootDirectoryName(rootDirectory);
if (output != null)
result = result.withParameter(OUTPUT, output);
if (logDirectory != null)
result = result.withParameter(LOG_DIRECTORY, logDirectory);
if (daysTillVersionsExpire != null)
result = result.withParameter(VERSIONS_CONTROLLER_DAYS, daysTillVersionsExpire.toString());
if (omitUpdate)
result = result.withParameter(OMITTING_UPDATES, "true");
if (installOnly)