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symfony/src/Symfony/Component/Config/Resource/DirectoryResource.php
Fabien Potencier 572864b223 Merge branch '3.4' into 4.1
* 3.4:
  fixed CS
  fixed short array CS in comments
  fixed CS in ExpressionLanguage fixtures
  fixed CS in generated files
  fixed CS on generated container files
  fixed CS on Form PHP templates
  fixed CS on YAML fixtures
  fixed fixtures
  switched array() to []
2019-01-16 19:21:11 +01:00

117 lines
3.1 KiB
PHP

<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Config\Resource;
/**
* DirectoryResource represents a resources stored in a subdirectory tree.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class DirectoryResource implements SelfCheckingResourceInterface, \Serializable
{
private $resource;
private $pattern;
/**
* @param string $resource The file path to the resource
* @param string|null $pattern A pattern to restrict monitored files
*
* @throws \InvalidArgumentException
*/
public function __construct(string $resource, string $pattern = null)
{
$this->resource = realpath($resource) ?: (file_exists($resource) ? $resource : false);
$this->pattern = $pattern;
if (false === $this->resource || !is_dir($this->resource)) {
throw new \InvalidArgumentException(sprintf('The directory "%s" does not exist.', $resource));
}
}
/**
* {@inheritdoc}
*/
public function __toString()
{
return md5(serialize([$this->resource, $this->pattern]));
}
/**
* @return string The file path to the resource
*/
public function getResource()
{
return $this->resource;
}
/**
* Returns the pattern to restrict monitored files.
*
* @return string|null
*/
public function getPattern()
{
return $this->pattern;
}
/**
* {@inheritdoc}
*/
public function isFresh($timestamp)
{
if (!is_dir($this->resource)) {
return false;
}
if ($timestamp < filemtime($this->resource)) {
return false;
}
foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->resource), \RecursiveIteratorIterator::SELF_FIRST) as $file) {
// if regex filtering is enabled only check matching files
if ($this->pattern && $file->isFile() && !preg_match($this->pattern, $file->getBasename())) {
continue;
}
// always monitor directories for changes, except the .. entries
// (otherwise deleted files wouldn't get detected)
if ($file->isDir() && '/..' === substr($file, -3)) {
continue;
}
// for broken links
try {
$fileMTime = $file->getMTime();
} catch (\RuntimeException $e) {
continue;
}
// early return if a file's mtime exceeds the passed timestamp
if ($timestamp < $fileMTime) {
return false;
}
}
return true;
}
public function serialize()
{
return serialize([$this->resource, $this->pattern]);
}
public function unserialize($serialized)
{
list($this->resource, $this->pattern) = unserialize($serialized);
}
}