Move old DONUT pyramids to new names

move_old_pyramids.rb

def move_old_pyramids
  bucket = Settings.aws.buckets.pyramids
  FileSet.find_each do |fs|
    begin
      file_id = fs.original_file.id
      old_file_id = file_id.split(%r{/files/}).last
      new_file_id = file_id.split(%r{/files/}).first
      old_key = IiifDerivativeService.s3_key_for(old_file_id)
      new_key = IiifDerivativeService.s3_key_for(new_file_id)

      old_location = Aws::S3::Object.new(bucket_name: bucket, key: old_key)
      if old_location.exists?
        new_location = Aws::S3::Object.new(bucket_name: bucket, key: new_key)
        new_location.copy_from(copy_source: "#{bucket}/#{old_key}")
        if new_location.etag == old_location.etag
          old_location.delete
        end
      end
    rescue
    end
    $stderr.print '.'
  end
  $stderr.puts
end