Delete (custom) users folder in media directory

Hi,

First of all I’d like to thank you for building this awesome plugin, it really solves big things!

Here is one feature request.

I am using the following code to differentiate uploads by user (each user is being assigned it’s own folder where his uploads are stored).

My problem is that once I use the “delete me” function I am left with an empty user folder in the main uploads dir. Is there any way to hook a function that will check for those folders and delete them too?

Thanks a ton!

/* Per user upload dir function */
function per_user_upload_dir( $original ){
    // use the original array for initial setup
    $modified = $original;
    // set our own replacements
    if ( is_user_logged_in() ) {
        $current_user = wp_get_current_user();
        $subdir = $current_user->user_login;
        $modified['subdir'] = $subdir;
        $modified['url'] = $original['baseurl'] . '/' . $subdir;
        $modified['path'] = $original['basedir'] . DIRECTORY_SEPARATOR . $subdir;
    }
    return $modified;
}
add_filter( 'upload_dir', 'per_user_upload_dir');