[PATCH v2 0/3] checkout: introduce --detach synonym for "git checkout foo^{commit}"

Jonathan Nieder wrote:

... and here's a reroll fixing them. Applies on top of the old uk/checkout-ambiguous-ref (0cb6ad3, 2011-01-11).

Patch 1 is an irrelevant cleanup, for while I have your eyes on this code. :)

Patch 2 introduces the --detach option, taking care to error out in special cases.

Patch 3 is another cleanup, to make the effect of patch 2 more clear.

Thanks again for your help.
Jonathan Nieder (2):
  checkout: split off a function to peel away branchname arg
  checkout: rearrange update_refs_for_switch for clarity

Junio C Hamano (1):
  checkout: introduce --detach synonym for "git checkout foo^{commit}"

 Documentation/git-checkout.txt |   13 ++-
 builtin/checkout.c             |  265 +++++++++++++++++++++++----------------
 t/t2020-checkout-detach.sh     |   95 ++++++++++++++
 3 files changed, 262 insertions(+), 111 deletions(-)
 create mode 100755 t/t2020-checkout-detach.sh