runCommand method

@override Future<int?> runCommand(ArgResults topLevelResults)

Runs the command specified by topLevelResults.

This is notionally a protected method. It may be overridden or called from subclasses, but it shouldn't be called externally.

It's useful to override this to handle global flags and/or wrap the entire command in a block. For example, you might handle the --verbose flag here to enable verbose logging before running the command.

This returns the return value of Command.run.

Implementation

@override
Future<int?> runCommand(ArgResults topLevelResults) {
  final future = Future<int>.value(0);
  if (topLevelResults['help'] == true) {
    printUsage();
    return future;
  }

  if (topLevelResults['version'] == true) {
    printf('Unify $packageVersion • $gitUrl');
    return future;
  }

  return super.runCommand(topLevelResults);
}