[PATCH v3 0/7] Removing the guesswork of HEAD in "clone"

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

This reworks the old idea from 2008 ($gmane/102039) to teach
upload-pack to say where symbolic refs are pointing at in the
initial ref advertisement as a new capability "symref", and allows
"git clone" to take advantage of that knowledge when deciding what
branch to point at with the HEAD of the newly created repository.

Credits for re-igniting the ember with an earlier patch series goes
to Andreas Krey.

 * The test-fix in [PATCH 1/7] is new this round.

 * The main patch to upload-pack.c [PATCH 3/7] has the fix I earlier
   sent.  The capability was called "sym" in the previous one, but
   it spells out "symref" in this round.

 * The patch on the receiving end [PATCH 6/7] now comes with an
   update to a test that was fixed in [PATCH 1/7].

This round seems to pass all the test, and the code is fairly
straight-forward, so it may be ready for at least 'pu' if not
'next'.

The series is to be applied on top of v1.8.4; between there and the
'master', there is some code reorganization to create connect.h out
of cache.h which may cause patch conflict, but it should be trivial
to fix when merging it up (queued as an evil merge near the tip of
the 'pu' branch).


Junio C Hamano (7):
  t5505: fix "set-head --auto with ambiguous HEAD" test
  upload-pack.c: do not pass confusing cb_data to mark_our_ref()
  upload-pack: send symbolic ref information as capability
  upload-pack: send non-HEAD symbolic refs
  connect.c: make parse_feature_value() static
  connect: annotate refs with their symref information in
    get_remote_head()
  clone: test the new HEAD detection logic

 cache.h           |  1 -
 connect.c         | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 t/t5505-remote.sh | 16 +++++---------
 t/t5601-clone.sh  | 11 ++++++++++
 upload-pack.c     | 51 ++++++++++++++++++++++++++++++++++++++------
 5 files changed, 123 insertions(+), 19 deletions(-)

-- 
1.8.4-585-g8d1dcaf