CacheBusting function for Nutshell

cachebust-example.php

<?php
// in the controller:
$this->view->setTemplate('index');
$scope = $this;
$this->view->getContext()->registerCallback
(
        'cacheBustFilename',
        function($publicPath) use ($scope)
        {
                $publicDir = Nutshell::getInstance()->config->application->dir->publicDir;
                $pathToFile = $publicDir . $publicPath;
                if(!is_readable($pathToFile))
                {
                        throw new NutshellException("can't add script. file doesn't exist", $pathToFile);
                }
                $time = filemtime($pathToFile);
                return $publicPath . '?v=' . $time;
        }
);
$this->view->render();


// in the view:
<script type="text/javascript" src="<?php echo $tpl->cacheBustFilename('/path/to/file.js'); ?>"></script>