public function getRootIdentifier()
    {
        if (null === $this->rootIdentifier) {
            $this->process->execute(sprintf('hg tip --template "{node}"'), $output, $this->repoDir);
            $output = $this->process->splitLines($output);
            $this->rootIdentifier = $output[0];
        }

        return $this->rootIdentifier;
    }
public function getRootIdentifier()
    {
        if (null === $this->rootIdentifier) {
            $this->process->execute(sprintf('hg tip --template "{node}"'), $output, $this->repoDir);
            $output = $this->process->splitLines($output);
            $this->rootIdentifier = $output[0];
        }

        return $this->rootIdentifier;
    }
public function getRootIdentifier ( ) { if ( null === $ this -> rootIdentifier ) { $ this -> process -> execute ( sprintf ( 'hg tip --template "{node}"' ) , $ output , $ this -> repoDir ) ; $ output = $ this -> process -> splitLines ( $ output ) ; $ this -> rootIdentifier = $ output [ 0 ] ; } return $ this -> rootIdentifier ; }
{@inheritDoc}
{