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<?php
namespace Drupal\Core\Archiver;
/**
* Defines a archiver implementation for .tar files.
*/
class Tar implements ArchiverInterface {
/**
* The underlying ArchiveTar instance that does the heavy lifting.
*
* @var \Drupal\Core\Archiver\ArchiveTar
*/
protected $tar;
/**
* Constructs a Tar object.
*
* @param string $file_path
* The full system path of the archive to manipulate. Only local files
* are supported. If the file does not yet exist, it will be created if
* appropriate.
*
* @throws \Drupal\Core\Archiver\ArchiverException
*/
public function __construct($file_path) {
$this->tar = new ArchiveTar($file_path);
}
/**
* {@inheritdoc}
*/
public function add($file_path) {
$this->tar->add($file_path);
return $this;
}
/**
* {@inheritdoc}
*/
public function remove($file_path) {
// @todo Archive_Tar doesn't have a remove operation
// so we'll have to simulate it somehow, probably by
// creating a new archive with everything but the removed
// file.
return $this;
}
/**
* {@inheritdoc}
*/
public function extract($path, array $files = []) {
if ($files) {
$this->tar->extractList($files, $path);
}
else {
$this->tar->extract($path);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function listContents() {
$files = [];
foreach ($this->tar->listContent() as $file_data) {
$files[] = $file_data['filename'];
}
return $files;
}
/**
* Retrieves the tar engine itself.
*
* In some cases it may be necessary to directly access the underlying
* Archive_Tar object for implementation-specific logic. This is for advanced
* use only as it is not shared by other implementations of ArchiveInterface.
*
* @return Archive_Tar
* The Archive_Tar object used by this object.
*/
public function getArchive() {
return $this->tar;
}
}