vendor/kriswallsmith/assetic/src/Assetic/Factory/Resource/DirectoryResource.php

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<?php

/*
 * This file is part of the Assetic package, an OpenSky project.
 *
 * (c) 2010-2014 OpenSky Project Inc
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Assetic\Factory\Resource;

/**
 * A resource is something formulae can be loaded from.
 *
 * @author Kris Wallsmith <kris.wallsmith@gmail.com>
 */
class DirectoryResource implements IteratorResourceInterface
{
    private $path;
    private $pattern;

    /**
     * Constructor.
     *
     * @param string $path    A directory path
     * @param string $pattern A filename pattern
     */
    public function __construct($path, $pattern = null)
    {
        if (DIRECTORY_SEPARATOR != substr($path, -1)) {
            $path .= DIRECTORY_SEPARATOR;
        }

        $this->path = $path;
        $this->pattern = $pattern;
    }

    public function isFresh($timestamp)
    {
        if (!is_dir($this->path) || filemtime($this->path) > $timestamp) {
            return false;
        }

        foreach ($this as $resource) {
            if (!$resource->isFresh($timestamp)) {
                return false;
            }
        }

        return true;
    }

    /**
     * Returns the combined content of all inner resources.
     */
    public function getContent()
    {
        $content = array();