validateRootFolderOption method
void
validateRootFolderOption()
Implementation
void validateRootFolderOption() {
final rootFolderPath = argResults?[rootFolder] as String;
if (Directory(rootFolderPath).existsSync()) {
return;
}
final _exceptionMessage =
'Root folder $rootFolderPath does not exist or not a directory.';
throw InvalidArgumentException(_exceptionMessage);
}