protected function setup() {
		$this->output->writeln( [
			'MinusX',
			'======',
		] );

		$rawPath = $this->input->getArgument( 'path' );
		$path = realpath( $rawPath );
		if ( !$path ) {
			$this->output->writeln( 'Error: Invalid path specified' );
			return 1;
		}

		return $path;
	}