Cache: allow storage backends to overwrite Watcher

lib/files/storage/common.php

@@ -249,6 +249,13 @@ abstract class Common implements \OC\Files\Storage\Storage {
 		return new \OC\Files\Cache\Permissions($this);
 	}
 
+	/**
+	 * @return \OC\Files\Cache\Watcher
+	 */
+	public function getWatcher(){
+		return new \OC\Files\Cache\Watcher($this);
+	}
+
 	/**
 	 * get the owner of a path
 	 * @param string $path The path to get the owner

lib/files/storage/storage.php

@@ -69,6 +69,11 @@ interface Storage{
 	 */
 	public function getPermissionsCache();
 
+	/**
+	 * @return \OC\Files\Cache\Watcher
+	 */
+	public function getWatcher();
+
 	/**
 	 * get the ETag for a file or folder
 	 *

lib/files/view.php

@@ -685,7 +685,7 @@ class View {
 				$scanner = $storage->getScanner();
 				$scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW);
 			} else {
-				$watcher = new \OC\Files\Cache\Watcher($storage);
+				$watcher = $storage->getWatcher();
 				$watcher->checkUpdate($internalPath);
 			}
 
@@ -733,7 +733,7 @@ class View {
 				$scanner = $storage->getScanner();
 				$scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW);
 			} else {
-				$watcher = new \OC\Files\Cache\Watcher($storage);
+				$watcher = $storage->getWatcher();
 				$watcher->checkUpdate($internalPath);
 			}
 

tests/lib/files/cache/watcher.php

@@ -32,7 +32,7 @@ class Watcher extends \PHPUnit_Framework_TestCase {
 	function testWatcher() {
 		$storage = $this->getTestStorage();
 		$cache = $storage->getCache();
-		$updater = new \OC\Files\Cache\Watcher($storage);
+		$updater = $storage->getWatcher();
 
 		//set the mtime to the past so it can detect an mtime change
 		$cache->put('', array('mtime' => 10));
@@ -66,16 +66,16 @@ class Watcher extends \PHPUnit_Framework_TestCase {
 	public function testFileToFolder() {
 		$storage = $this->getTestStorage();
 		$cache = $storage->getCache();
-		$updater = new \OC\Files\Cache\Watcher($storage);
+		$updater = $storage->getWatcher();
 
 		//set the mtime to the past so it can detect an mtime change
 		$cache->put('', array('mtime' => 10));
 
 		$storage->unlink('foo.txt');
-		$storage->rename('folder','foo.txt');
+		$storage->rename('folder', 'foo.txt');
 		$updater->checkUpdate('');
 
-		$entry= $cache->get('foo.txt');
+		$entry = $cache->get('foo.txt');
 		$this->assertEquals(-1, $entry['size']);
 		$this->assertEquals('httpd/unix-directory', $entry['mimetype']);
 		$this->assertFalse($cache->inCache('folder'));
@@ -83,16 +83,16 @@ class Watcher extends \PHPUnit_Framework_TestCase {
 
 		$storage = $this->getTestStorage();
 		$cache = $storage->getCache();
-		$updater = new \OC\Files\Cache\Watcher($storage);
+		$updater = $storage->getWatcher();
 
 		//set the mtime to the past so it can detect an mtime change
 		$cache->put('foo.txt', array('mtime' => 10));
 
 		$storage->unlink('foo.txt');
-		$storage->rename('folder','foo.txt');
+		$storage->rename('folder', 'foo.txt');
 		$updater->checkUpdate('foo.txt');
 
-		$entry= $cache->get('foo.txt');
+		$entry = $cache->get('foo.txt');
 		$this->assertEquals('httpd/unix-directory', $entry['mimetype']);
 		$this->assertTrue($cache->inCache('foo.txt/bar.txt'));
 	}