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<?php |
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namespace phpbu\App\Backup; |
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use DirectoryIterator; |
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use SplFileInfo; |
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use phpbu\App\Util\Arr; |
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use phpbu\App\Util\Str; |
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/** |
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* Collector |
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* |
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* @package phpbu |
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* @subpackage Backup |
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* @author Sebastian Feldmann <[email protected]> |
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* @copyright Sebastian Feldmann <[email protected]> |
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* @license https://opensource.org/licenses/MIT The MIT License (MIT) |
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* @link http://phpbu.de/ |
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* @since Class available since Release 1.0.0 |
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*/ |
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class Collector |
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{ |
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/** |
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* Backup target |
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* |
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* @var \phpbu\App\Backup\Target |
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*/ |
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protected $target; |
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/** |
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* Target filename regex |
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* |
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* @var string |
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*/ |
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protected $fileRegex; |
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/** |
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* Collection cache |
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* |
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* @var \phpbu\App\Backup\File[] |
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*/ |
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protected $files; |
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/** |
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* Constructor |
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* |
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* @param Target $target |
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*/ |
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public function __construct(Target $target) |
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{ |
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$this->target = $target; |
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} |
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/** |
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* Get all created backups. |
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* |
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* @return \phpbu\App\Backup\File[] |
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*/ |
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public function getBackupFiles() |
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{ |
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if (null === $this->files) { |
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// create regex to match only created backup files |
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$this->fileRegex = Str::datePlaceholdersToRegex($this->target->getFilenameRaw()); |
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$this->files = []; |
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// collect all matching backup files |
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$this->collect($this->target->getPathThatIsNotChanging(), 0); |
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} |
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return $this->files; |
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} |
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/** |
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* Recursive backup collecting. |
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* |
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* @param string $path |
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* @param int $depth |
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*/ |
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protected function collect($path, $depth) |
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{ |
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$dirIterator = new DirectoryIterator($path); |
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// collect all matching sub directories and get all the backup files |
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if ($depth < $this->target->countChangingPathElements()) { |
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foreach ($dirIterator as $file) { |
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if ($file->isDot()) { |
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continue; |
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} |
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if ($this->isValidDirectory($file, $depth)) { |
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$this->collect($file->getPathname(), $depth + 1); |
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} |
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} |
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} else { |
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/** @var \phpbu\App\Backup\File $file */ |
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$this->collectFiles($dirIterator); |
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} |
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} |
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/** |
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* Collect backup files in directory. |
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* |
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* @param \DirectoryIterator $dirIterator |
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*/ |
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protected function collectFiles(DirectoryIterator $dirIterator) |
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{ |
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foreach ($dirIterator as $i => $file) { |
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if ($file->isDir()) { |
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continue; |
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} |
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// skip currently created backup |
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if ($file->getPathname() == $this->target->getPathname()) { |
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continue; |
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} |
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if (preg_match('#' . $this->fileRegex . '#i', $file->getFilename())) { |
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$index = date('YmdHis', $file->getMTime()) . '-' . $i . '-' . $file->getPathname(); |
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$this->files[$index] = new File($file->getFileInfo()); |
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} |
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} |
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} |
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/** |
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* Check if the iterated file is part of a valid target path. |
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* |
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* @param \SplFileInfo $file |
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* @param int $depth |
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* @return bool |
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*/ |
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protected function isValidDirectory(SplFileInfo $file, $depth) |
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{ |
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return $file->isDir() && $this->isMatchingDirectory($file->getBasename(), $depth); |
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} |
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/** |
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* Does a directory match the respective target path. |
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* |
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* @param string $dir |
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* @param int $depth |
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* @return bool |
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*/ |
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protected function isMatchingDirectory($dir, $depth) |
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{ |
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$dirTarget = Arr::getValue($this->target->getChangingPathElements(), $depth); |
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$dirRegex = Str::datePlaceholdersToRegex($dirTarget); |
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return preg_match('#' . $dirRegex . '#i', $dir); |
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} |
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} |
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sebastianfeldmann /
phpbu
