assets_rename_file
This hook is called before renaming the file.
Hook Parameters
$file
An object extending Assets_base_file
class for the file that is about to be replaced.
$file_name
The file name that the file will be renamed to.
Notes
This hook is fired only if a file of the new name does not exist in the folder - in other words, it is guaranteed, that the file will be renamed. If a conflict exists, the appropriate hook will be fired only after the conflict resolution.