s3: do not copy object to itself if metadata is already correct

rclone · Aug 3, 2023 · c2d16a6 · c2d16a6
1 parent 3bcdd2b
commit c2d16a6
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/backend/s3/s3.go b/backend/s3/s3.go
@@ -5132,6 +5132,12 @@ func (o *Object) SetModTime(ctx context.Context, modTime time.Time) error {
 	if err != nil {
 		return err
 	}
+
+	// Do not copy to itself if metadata is already correct ?
+	if o.meta[metaMtime] == swift.TimeToFloatString(modTime) {
+		return nil
+	}
+
 	o.meta[metaMtime] = swift.TimeToFloatString(modTime)
 
 	// Can't update metadata here, so return this error to force a recopy