perf: Avoid updating the folder size if we know the size difference

Signed-off-by: Julius Härtl <jus@bitgrid.net>

1 files changed, 14 insertions, 12 deletions

diff --git a/lib/private/Files/Cache/Updater.php b/lib/private/Files/Cache/Updater.php
index 457dd207e9d..a6f2f3375a4 100644
--- a/lib/private/Files/Cache/Updater.php
+++ b/lib/private/Files/Cache/Updater.php
@@ -119,7 +119,7 @@ class Updater implements IUpdater {
 	 * @param string $path
 	 * @param int $time
 	 */
-	public function update($path, $time = null) {
+	public function update($path, $time = null, ?int $sizeDifference = null) {
 		if (!$this->enabled or Scanner::isPartialFile($path)) {
 			return;
 		}
@@ -128,20 +128,22 @@ class Updater implements IUpdater {
 		}
 
 		$data = $this->scanner->scan($path, Scanner::SCAN_SHALLOW, -1, false);
-		if (
-			isset($data['oldSize']) && isset($data['size']) &&
-			!$data['encrypted'] // encryption is a pita and touches the cache itself
-		) {
+
+		if (isset($data['oldSize']) && isset($data['size'])) {
 			$sizeDifference = $data['size'] - $data['oldSize'];
-		} else {
-			// scanner didn't provide size info, fallback to full size calculation
-			$sizeDifference = 0;
-			if ($this->cache instanceof Cache) {
-				$this->cache->correctFolderSize($path, $data);
-			}
+		}
+
+		// encryption is a pita and touches the cache itself
+		if (isset($data['encrypted']) && !!$data['encrypted']) {
+			$sizeDifference = null;
+		}
+
+		// scanner didn't provide size info, fallback to full size calculation
+		if ($this->cache instanceof Cache && $sizeDifference === null) {
+			$this->cache->correctFolderSize($path, $data);
 		}
 		$this->correctParentStorageMtime($path);
-		$this->propagator->propagateChange($path, $time, $sizeDifference);
+		$this->propagator->propagateChange($path, $time, $sizeDifference ?? 0);
 	}
 
 	/**