040000 tree a4bd2a05d746170117d9f46b0c39ed6fe2176e51	fast
040000 tree 04fd0f1c468ec444a7859cb489560d39cf714edb	install_script
040000 tree a6d4b6163437b510fb7d9959b909df1a051f1cd1	installation
040000 tree 9869a170f1889c584136bf5e3e81149e672aad21	slow
040000 tree 75feeb13f9fb1bc885753d5b9ff9fe0fb44b354f	sourcing