protected function getPreviousWrapper()
    {
        if ($this->previousWrapper) {
            return $this->previousWrapper;
        }

        $input = $this->getInput();

        $this->previousWrapper = $this->getWrapperInstance(
            $input->getArgument('previous'),
            $input->getOption('type')
        );

        return $this->previousWrapper;
    }
protected function getPreviousWrapper()
    {
        if ($this->previousWrapper) {
            return $this->previousWrapper;
        }

        $input = $this->getInput();

        $this->previousWrapper = $this->getWrapperInstance(
            $input->getArgument('previous'),
            $input->getOption('type')
        );

        return $this->previousWrapper;
    }
protected function getPreviousWrapper ( ) { if ( $ this -> previousWrapper ) { return $ this -> previousWrapper ; } $ input = $ this -> getInput ( ) ; $ this -> previousWrapper = $ this -> getWrapperInstance ( $ input -> getArgument ( 'previous' ) , $ input -> getOption ( 'type' ) ) ; return $ this -> previousWrapper ; }
Get the wrapper for the VCS.

@return AbstractWrapper
Get the wrapper for the VCS .