[PATCH 0/2] Finishing touches to "name-rev" fix

[Junio C Hamano <gitster@pobox.com>]

This is an update to finish the jc/name-rev-exact-ref topic, which
fixed the command to convert an object name that points at a tag to
a refname of the tag (earlier, it did not show anything).  The
codepath to handle its command line arguments, however, fed the
commit that the tag points at to the underlying naming machinery.

The first patch in this follow-up series corrects it for the command
line codepath.

The second patch is a related fix for "git describe".  The command
is about naming the given commit in relation to a tag in its
neighbourhood, and while it does allow the input to be a commit-ish
(e.g. a tag that points at a commit), it did not unwrap it down to
commit, which is a bug (it is like "git commit-tree -p $tag" that
would mistakenly record a tag object as one of the parents of the
resulting commit).

Junio C Hamano (2):
  name-rev: differentiate between tags and commits they point at
  describe: fix --contains when a tag is given as input

 builtin/describe.c  |  3 ++-
 builtin/name-rev.c  | 41 ++++++++++++++++++++++++++++++++---------
 t/t6120-describe.sh | 24 ++++++++++++++++++++++++
 3 files changed, 58 insertions(+), 10 deletions(-)

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1.8.3.3-992-gf0e5e44