tree blob blob 親 blob tree commit tree blob blob 親 blob tree commit tree blob blob 親 blob tree commit tree blob blob 親 blob tree commit tree blob blob 親 blob tree commit tr blob b blob tree commit tree blob blob 親
tree blob blob 親 blob tree commit tree blob blob 親 blob tree commit tree blob blob 親 blob tree commit tree blob blob 親 blob tree commit tree blob blob 親 blob tree commit tr blob b blob tree commit tree blob blob 親 ディスク容量は確かに非効率