Batch rename/move files with callback function

batchRename.php

public static function testRename()
{
    self::batchRename('s3', 'documents', function ($file) {
        return str_replace('%20', '-', $file);
    });
}

public static function batchRename($disk, $directory, $callback)
{
    $disk = \Illuminate\Support\Facades\Storage::disk($disk);

    $files = $disk->allFiles('documents');

    foreach ($files as $file) {
        $newName = $callback($file);
        if ($file != $newName && !$disk->exists($newName)) {
            $disk->move($file, $newName);
        }
        echo $file . ' -> ' . $newName . PHP_EOL;
    }
}

$file != $newName on line 16 is redundant, however if caching is not utilized it could save some time on large batches