[WIP v2 0/2] experiment with commit option record-time-zone

My current understanding is that we should start with providing command options first and if they prove to be useful, we can progress with config such as user.recordTimeZone. Also, we wanted to save the timestamp as -0000 when user specify not to record time zone so to distinguish with +0000(user from UTC time zone).

Experimenting to support command option --[no-]record-time-zone, currently only added for commit command; the plan is to add it to other time zone recording command such as rebase, pull and merge. Documentation change is also missing.

I added three tests where the first two are failing. I am not sure why they are failing. I am guessing the datestamp method is not called when specifying the date or GIT_AUTHOR_DATE. Also, I am not sure the correct handling of all the show_date calls yet. Anyway, I wanted to share WIP before delaying longer.

Shengfa Lin (2):
  Adding a record-time-zone command option for commit
  Demonstrate failing and passing tests

 builtin/am.c            |  2 +-
 builtin/blame.c         |  4 +-
 builtin/commit.c        |  3 +-
 builtin/fast-import.c   |  2 +-
 builtin/show-branch.c   |  2 +-
 builtin/tag.c           |  2 +-
 cache.h                 | 10 +++--
 date.c                  | 96 ++++++++++++++++++++++++++++-------------
 http-backend.c          |  2 +-
 pretty.c                |  6 ++-
 ref-filter.c            |  2 +-
 reflog-walk.c           |  2 +-
 refs.c                  |  6 ++-
 sha1-name.c             |  2 +-
 t/helper/test-date.c    |  8 ++--
 t/t7514-commit-patch.sh | 28 ++++++++++++
 16 files changed, 126 insertions(+), 51 deletions(-)