[PATCH v3 0/2] [GSoC] remove_subtree(): reimplement using iterators

This is the third version of the GSoC microproject
of refactoring remove_subtree() from recursively using
readdir() to use dir_iterator. Below are the threads for
other versions:

v1: https://public-inbox.org/git/CAGZ79kZwT-9mHTiOJ5CEjk2wDFkn6+NcogjX0=vjhsAh16ANYg@mail.gmail.com/T/#mae023e7a7d7626f00e0923833c4359f5af493730
v2: https://public-inbox.org/git/CACsJy8Dxh-QPBBLfaFWPAWUsbA9GVXA7x+mXLjEvYKhk1zOpig@mail.gmail.com/T/#t

Duy suggested adding features to dir_iterator might go
beyond the intention of a microproject, but I figured I
might go for it to learn more about the project.

The dir_iterator reimplementation has been tested in a
separate binary I created (and linked with libgit.a) to
reproduce remove_subtree()'s contents. As pointed out in the
last thread, git's tests for this function were unable to
catch a daunting bug I had introduced, and I still haven't
been able to come up with a way to reproduce remove_subtree()
being called. Any help?

Thank you all again for all the reviews.

Daniel Ferreira (2):
  dir_iterator: iterate over dir after its contents
  remove_subtree(): reimplement using iterators

 dir-iterator.c | 100 ++++++++++++++++++++++++++++++++++++++++++++-------------
 dir-iterator.h |   7 ++++
 entry.c        |  32 +++++++-----------
 3 files changed, 95 insertions(+), 44 deletions(-)

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2.7.4 (Apple Git-66)