040000 tree 0d9d3975b5bc4a19121c8c02114e4073185bb567	com
040000 tree ec1d3b06936e8f629ef981290e911f6d2648d060	prj
040000 tree 38b9384eae5533b52d98037610ecd39c791cda6d	source
040000 tree 32bcccb67ae2bb80c1eb122540efd9b85422785b	util