[PATCH v2 0/9] Extending the shelf-life of "git describe" output

This is take 2.  The first round was $gmane/200165.

A major difference from v1 is the [PATCH 6/9]. The earlier approach was to filter out candidates that match the given prefix for additional criteria as they are found in the loop, but this round tries to optimize for the common case of not having ambiguities. We postpone running additional test until we find the second object that match the prefix (in other words, if there is only one object that has the prefix, we do not apply the "we know this name refers to a commit" hint, and let the caller deal with a non commit object, just like the current code does).

Junio C Hamano (9):
  sha1_name.c: indentation fix
  sha1_name.c: clarify what "fake" is for in find_short_object_filename()
  sha1_name.c: rename "now" to "current"
  sha1_name.c: refactor find_short_packed_object()
  sha1_name.c: correct misnamed "canonical" and "res"
  sha1_name.c: restructure disambiguation of short names
  sha1_name.c: allow get_short_sha1() to take other flags
  sha1_name.c: teach get_short_sha1() a commit-only option
  sha1_name.c: get_describe_name() by definition groks only commits

 sha1_name.c | 282 +++++++++++++++++++++++++++++++++++++++---------------------
 1 file changed, 182 insertions(+), 100 deletions(-)