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<?php
namespace Drupal\Core\Extension;
/**
* Defines an extension (file) object.
*/
class Extension implements \Serializable {
/**
* The type of the extension (e.g., 'module').
*
* @var string
*/
protected $type;
/**
* The relative pathname of the extension (e.g., 'core/modules/node/node.info.yml').
*
* @var string
*/
protected $pathname;
/**
* The filename of the main extension file (e.g., 'node.module').
*
* @var string|null
*/
protected $filename;
/**
* An SplFileInfo instance for the extension's info file.
*
* Note that SplFileInfo is a PHP resource and resources cannot be serialized.
*
* @var \SplFileInfo
*/
protected $splFileInfo;
/**
* The app root.
*
* @var string
*/
protected $root;
/**
* Constructs a new Extension object.
*
* @param string $root
* The app root.
* @param string $type
* The type of the extension; e.g., 'module'.
* @param string $pathname
* The relative path and filename of the extension's info file; e.g.,
* 'core/modules/node/node.info.yml'.
* @param string $filename
* (optional) The filename of the main extension file; e.g., 'node.module'.
*/
public function __construct($root, $type, $pathname, $filename = NULL) {
$this->root = $root;
$this->type = $type;
$this->pathname = $pathname;
$this->filename = $filename;
}
/**
* Returns the type of the extension.
*
* @return string
*/
public function getType() {
return $this->type;
}
/**
* Returns the internal name of the extension.
*
* @return string
*/
public function getName() {
return basename($this->pathname, '.info.yml');
}
/**
* Returns the relative path of the extension.
*
* @return string
*/
public function getPath() {
return dirname($this->pathname);
}
/**
* Returns the relative path and filename of the extension's info file.
*
* @return string
*/
public function getPathname() {
return $this->pathname;
}
/**
* Returns the filename of the extension's info file.
*
* @return string
*/
public function getFilename() {
return basename($this->pathname);
}
/**
* Returns the relative path of the main extension file, if any.
*
* @return string|null
*/
public function getExtensionPathname() {
if ($this->filename) {
return $this->getPath() . '/' . $this->filename;
}
}
/**
* Returns the name of the main extension file, if any.
*
* @return string|null
*/
public function getExtensionFilename() {
return $this->filename;
}
/**
* Loads the main extension file, if any.
*
* @return bool
* TRUE if this extension has a main extension file, FALSE otherwise.
*/
public function load() {
if ($this->filename) {
include_once $this->root . '/' . $this->getPath() . '/' . $this->filename;
return TRUE;
}
return FALSE;
}
/**
* Re-routes method calls to SplFileInfo.
*
* Offers all SplFileInfo methods to consumers; e.g., $extension->getMTime().
*/
public function __call($method, array $args) {
if (!isset($this->splFileInfo)) {
$this->splFileInfo = new \SplFileInfo($this->pathname);
}
return call_user_func_array([$this->splFileInfo, $method], $args);
}
/**
* Implements Serializable::serialize().
*
* Serializes the Extension object in the most optimized way.
*/
public function serialize() {
// Don't serialize the app root, since this could change if the install is
// moved.
$data = [
'type' => $this->type,
'pathname' => $this->pathname,
'filename' => $this->filename,
];
// @todo ThemeHandler::listInfo(), ThemeHandler::rebuildThemeData(), and
// system_list() are adding custom properties to the Extension object.
$info = new \ReflectionObject($this);
foreach ($info->getProperties(\ReflectionProperty::IS_PUBLIC) as $property) {
$data[$property->getName()] = $property->getValue($this);
}
return serialize($data);
}
/**
* {@inheritdoc}
*/
public function unserialize($data) {
$data = unserialize($data);
// Get the app root from the container.
$this->root = DRUPAL_ROOT;
$this->type = $data['type'];
$this->pathname = $data['pathname'];
$this->filename = $data['filename'];
// @todo ThemeHandler::listInfo(), ThemeHandler::rebuildThemeData(), and
// system_list() are adding custom properties to the Extension object.
foreach ($data as $property => $value) {
if (!isset($this->$property)) {
$this->$property = $value;
}
}
}
}