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* dir_iterator: new API for iterating over a directory treeMichael Haggerty2016-06-201-0/+87
The iterator interface is modeled on that for references, though no vtable is necessary because there is (so far?) only one type of dir_iterator. There are obviously a lot of features that could easily be added to this class: * Skip/include directory paths in the iteration * Shallow/deep iteration * Letting the caller decide which subdirectories to recurse into (e.g., via a dir_iterator_advance_into() function) * Option to iterate in sorted order * Option to iterate over directory paths before vs. after their contents But these are not needed for the current patch series, so I refrain. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>