[PATCH/RFC 0/4] Adding '-' notation as @{-1} (pu, d40f108)

[Kenny Lee Sin Cheong <kenny.lee28@gmail.com>]

This is an attempt to allow '-' everywhere a revision is normally allowed.
I previously attempted this  as a microproject and the subject was disscussed at : http://article.gmane.org/gmane.comp.version-control.git/265672

Currently, something like '-~2' does not work. I tried tracing the execution of, say 'log -~2' vs 'log master -~2' and noticed when calling dwim_ref() with '-~2', it returns 0 (no refs found) whereas when given 'master~2', it returned non-zero. However I'm not sure how exactly dwim_ref() works.

Kenny Lee Sin Cheong (4):
  Add "-" as @{-1} support for the rev-parse command
  t1505: add tests for '-' notation in rev-parse
  Handle arg as revision first, then option.
  t0102: add tests for '-' notation

 builtin/rev-parse.c           | 37 +++++++++++++-------------
 revision.c                    | 61 +++++++++++++++++++++++--------------------
 sha1_name.c                   |  2 +-
 t/t0102-previous-shorthand.sh | 40 ++++++++++++++++++++++++++++
 t/t1505-rev-parse-last.sh     | 12 ++++++---
 5 files changed, 101 insertions(+), 51 deletions(-)
 create mode 100644 t/t0102-previous-shorthand.sh

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2.3.3.203.g8ffb468.dirty