aws_monkeypatch.rb

module AWS
  class S3
    class ObjectCollection
      protected
      def each_member_in_page(page, &block)
        super
        page.contents.each do |content|
          yield(S3Object.new(bucket, content.key, { :etag => content.etag }))
        end
      end
    end
  end
end

module AWS
  class S3
    class S3Object
      attr_reader :etag_from_list

      def initialize(bucket, key, opts = {})
        @etag_from_list = opts.delete(:etag)
        super
        @key = key
        @bucket = bucket
      end
    end
  end
end