From 03f242a3b0c0382d9d95fc7add320d3c4911cc73 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Thomas=20M=C3=BCller?= <thomas.mueller@tmit.eu>
Date: Mon, 5 Aug 2013 12:13:34 +0200
Subject: [PATCH] manual backporting of OC\Files\Utils\Scanner to stable5

---
 lib/files/utils/scanner.php | 90 +++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 lib/files/utils/scanner.php

diff --git a/lib/files/utils/scanner.php b/lib/files/utils/scanner.php
new file mode 100644
index 00000000000..a98d4611f78
--- /dev/null
+++ b/lib/files/utils/scanner.php
@@ -0,0 +1,90 @@
+<?php
+/**
+ * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OC\Files\Utils;
+
+use OC\Files\Filesystem;
+use OC\Files\Mount;
+use OC\Hooks\PublicEmitter;
+
+/**
+ * Class Scanner
+ *
+ * Hooks available in scope \OC\Utils\Scanner
+ *  - scanFile(string $absolutePath)
+ *  - scanFolder(string $absolutePath)
+ *
+ * @package OC\Files\Utils
+ */
+class Scanner extends PublicEmitter {
+	/**
+	 * @var string $user
+	 */
+	private $user;
+
+	/**
+	 * @param string $user
+	 */
+	public function __construct($user) {
+		$this->user = $user;
+	}
+
+	/**
+	 * get all storages for $dir
+	 *
+	 * @param string $dir
+	 * @return \OC\Files\Mount[]
+	 */
+	protected function getMounts($dir) {
+		//TODO: move to the node based fileapi once that's done
+		\OC_Util::tearDownFS();
+		\OC_Util::setupFS($this->user);
+		$absolutePath = Filesystem::getView()->getAbsolutePath($dir);
+
+		$mounts = Mount::findIn($absolutePath);
+		$mounts[] = Mount::find($absolutePath);
+		$mounts = array_reverse($mounts); //start with the mount of $dir
+
+		return $mounts;
+	}
+
+	/**
+	 * attach listeners to the scanner
+	 *
+	 * @param \OC\Files\Mount $mount
+	 */
+	protected function attachListener($mount) {
+		$scanner = $mount->getStorage()->getScanner();
+		$emitter = $this;
+		$scanner->listen('\OC\Files\Cache\Scanner', 'scanFile', function ($path) use ($mount, $emitter) {
+			$emitter->emit('\OC\Files\Utils\Scanner', 'scanFile', array($mount->getMountPoint() . $path));
+		});
+		$scanner->listen('\OC\Files\Cache\Scanner', 'scanFolder', function ($path) use ($mount, $emitter) {
+			$emitter->emit('\OC\Files\Utils\Scanner', 'scanFolder', array($mount->getMountPoint() . $path));
+		});
+	}
+
+	public function backgroundScan($dir) {
+		$mounts = $this->getMounts($dir);
+		foreach ($mounts as $mount) {
+			$scanner = $mount->getStorage()->getScanner();
+			$this->attachListener($mount);
+			$scanner->backgroundScan();
+		}
+	}
+
+	public function scan($dir) {
+		$mounts = $this->getMounts($dir);
+		foreach ($mounts as $mount) {
+			$scanner = $mount->getStorage()->getScanner();
+			$this->attachListener($mount);
+			$scanner->scan('', \OC\Files\Cache\Scanner::SCAN_RECURSIVE, \OC\Files\Cache\Scanner::REUSE_ETAG);
+		}
+	}
+}
+
-- 
2.39.5