From 1d3beffacf70519d5d9c49b3a7af18faae99a6c4 Mon Sep 17 00:00:00 2001
From: Robin Appelman <icewind@owncloud.com>
Date: Fri, 8 Mar 2013 19:08:07 +0100
Subject: [PATCH] Cache: better rename hook for cache updater

---
 lib/files/cache/updater.php       | 43 ++++++++++++++++++++++++-------
 tests/lib/files/cache/updater.php |  5 ++--
 2 files changed, 36 insertions(+), 12 deletions(-)

diff --git a/lib/files/cache/updater.php b/lib/files/cache/updater.php
index d04541c219..e760ba71bc 100644
--- a/lib/files/cache/updater.php
+++ b/lib/files/cache/updater.php
@@ -53,12 +53,36 @@ class Updater {
 		}
 	}
 
+	static public function renameUpdate($from, $to) {
+		/**
+		 * @var \OC\Files\Storage\Storage $storageFrom
+		 * @var \OC\Files\Storage\Storage $storageTo
+		 * @var string $internalFrom
+		 * @var string $internalTo
+		 */
+		list($storageFrom, $internalFrom) = self::resolvePath($from);
+		list($storageTo, $internalTo) = self::resolvePath($to);
+		if ($storageFrom && $storageTo) {
+			if ($storageFrom === $storageTo) {
+				$cache = $storageFrom->getCache($internalFrom);
+				$cache->move($internalFrom, $internalTo);
+				$cache->correctFolderSize($internalFrom);
+				$cache->correctFolderSize($internalTo);
+				self::correctFolder($from, time());
+				self::correctFolder($to, time());
+			} else {
+				self::deleteUpdate($from);
+				self::writeUpdate($to);
+			}
+		}
+	}
+
 	/**
-	* Update the mtime and ETag of all parent folders
-	*
-	* @param string $path
-	* @param string $time
-	*/
+	 * Update the mtime and ETag of all parent folders
+	 *
+	 * @param string $path
+	 * @param string $time
+	 */
 	static public function correctFolder($path, $time) {
 		if ($path !== '' && $path !== '/') {
 			$parent = dirname($path);
@@ -66,9 +90,9 @@ class Updater {
 				$parent = '';
 			}
 			/**
-			* @var \OC\Files\Storage\Storage $storage
-			* @var string $internalPath
-			*/
+			 * @var \OC\Files\Storage\Storage $storage
+			 * @var string $internalPath
+			 */
 			list($storage, $internalPath) = self::resolvePath($parent);
 			if ($storage) {
 				$cache = $storage->getCache();
@@ -92,8 +116,7 @@ class Updater {
 	 * @param array $params
 	 */
 	static public function renameHook($params) {
-		self::deleteUpdate($params['oldpath']);
-		self::writeUpdate($params['newpath']);
+		self::renameUpdate($params['oldpath'], $params['newpath']);
 	}
 
 	/**
diff --git a/tests/lib/files/cache/updater.php b/tests/lib/files/cache/updater.php
index 7a79f45a20..aaf932c97f 100644
--- a/tests/lib/files/cache/updater.php
+++ b/tests/lib/files/cache/updater.php
@@ -54,6 +54,8 @@ class Updater extends \PHPUnit_Framework_TestCase {
 		Filesystem::clearMounts();
 		Filesystem::mount($this->storage, array(), '/' . self::$user . '/files');
 
+		\OC_Hook::clear('OC_Filesystem');
+
 		\OC_Hook::connect('OC_Filesystem', 'post_write', '\OC\Files\Cache\Updater', 'writeHook');
 		\OC_Hook::connect('OC_Filesystem', 'post_delete', '\OC\Files\Cache\Updater', 'deleteHook');
 		\OC_Hook::connect('OC_Filesystem', 'post_rename', '\OC\Files\Cache\Updater', 'renameHook');
@@ -137,11 +139,10 @@ class Updater extends \PHPUnit_Framework_TestCase {
 		$this->assertFalse($this->cache->inCache('foo.txt'));
 		$this->assertTrue($this->cache->inCache('bar.txt'));
 		$cachedData = $this->cache->get('bar.txt');
-		$this->assertNotEquals($fooCachedData['etag'], $cachedData['etag']);
+		$this->assertEquals($fooCachedData['fileid'], $cachedData['fileid']);
 		$mtime = $cachedData['mtime'];
 		$cachedData = $this->cache->get('');
 		$this->assertEquals(3 * $textSize + $imageSize, $cachedData['size']);
 		$this->assertNotEquals($rootCachedData['etag'], $cachedData['etag']);
-		$this->assertEquals($mtime, $cachedData['mtime']);
 	}
 }