Could implement the rename function

[Mark Lambley]

flysystem-backblaze/src/BackblazeAdapter.php

Lines 130 to 133 in 42549be

 public function rename($path, $newpath) 
 { 
     return false; 
 } 

This could be implemented using copyFile (see gliterd/backblaze-b2#57) and then delete the original file.

[Remmelt Pit]

Yes, a decision needs to be made what to do when the copy command succeeds, but the delete fails. There are no transactions ;-)

Perhaps throwing an exception is good enough.