040000 tree 88ababc1aede1147253edc2f8e3d36f314fa8e5a	data
040000 tree 8414579fda68b669753a78bac9a358b6d4e73e51	demo
040000 tree 8402b137ea123802afebcafd552737f7e7697d6d	test
040000 tree b5d25a6f3753d263e84cfbf060a36681118dad84	tool