040000 tree 45bdf8ce7df7f818c56360546b06a095cb4bc83b	api
040000 tree a68ede0942c9064c7317352d136acdc406e4b6dc	core
040000 tree f20961d5c24e9120934cf1167430deb29db7963e	cxx
040000 tree db18d00b28896252a97bb2694a10756ee7971dfd	sitetosite