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

134 lines
3.0 KiB
PHP

<?php
/*
* This file is part of the Assetic package, an OpenSky project.
*
* (c) 2010-2012 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()
{
$content = array();
foreach ($this as $resource) {
$content[] = $resource->getContent();
}
return implode("\n", $content);
}
public function __toString()
{
return $this->path;
}
public function getIterator()
{
return is_dir($this->path)
? new DirectoryResourceIterator($this->getInnerIterator())
: new \EmptyIterator();
}
protected function getInnerIterator()
{
return new DirectoryResourceFilterIterator(new \RecursiveDirectoryIterator($this->path), $this->pattern);
}
}
/**
* An iterator that converts file objects into file resources.
*
* @author Kris Wallsmith <kris.wallsmith@gmail.com>
* @access private
*/
class DirectoryResourceIterator extends \RecursiveIteratorIterator
{
public function current()
{
return new FileResource(parent::current()->getPathname());
}
}
/**
* Filters files by a basename pattern.
*
* @author Kris Wallsmith <kris.wallsmith@gmail.com>
* @access private
*/
class DirectoryResourceFilterIterator extends \RecursiveFilterIterator
{
protected $pattern;
public function __construct(\RecursiveDirectoryIterator $iterator, $pattern = null)
{
parent::__construct($iterator);
$this->pattern = $pattern;
}
public function accept()
{
$file = $this->current();
$name = $file->getBasename();
if ($file->isDir()) {
return '.' != $name[0];
} else {
return null === $this->pattern || 0 < preg_match($this->pattern, $name);
}
}
public function getChildren()
{
return new self(new \RecursiveDirectoryIterator($this->current()->getPathname()), $this->pattern);
}
}