[PATCH 00/13] bisect: v2.30.0 "run" regressions + make it built-in

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

This fixes the regression Lukáš Doktor reported in [1], and also gets
us the full way to a builtin/bisect.c and "git rm git-bisect.sh".

Only 1-4/13 here are needed to fix the "git bisect run <cmd> [...]
--log" regression Lukáš reported, but as Jeff points out we'd still
conflate "--bisect-*" with the user arguments. That's fixed in 11/13
here.

The 1-4/13 here also fixes other but probably more minor "git bisect
run" regressions in v2.30.0, we changed the output in a few ways
without intending it. 4/13 gets us mostly back to v2.29.0 behavior,
5/13 keeps the best of it and the current output.

I think for the v2.30.0 regressions we're better off with just
something like 1-4/13 here for now, and possibly 5/13 too.

But getting to the point of fixing the root cause of "--bisect-*"
being conflated is going to take quite a bit of churn. In the
side-thread Đoàn's diffstat is on the order of 1/2 of the size of this
series, and this gives us built-in "bisect".

The 6-13 here is something I had already for a couple of days, I was
seeing if I could distill Johannes's [2] down to something much
smaller, to just make a beeline towards a built-in bisect.

Johannes's refactors the "term" passing in [3], and Đoàn ends up
needing to do much the same in [4].

Here in 9/13 I instead just extend the OPT_SUBCOMMAND() API so it's
able to accept function callbacks with custom signatures, which
eliminates the need for most of that refactoring. 11/13 then makes use
of it.

1. https://lore.kernel.org/git/1cb1c033-0525-7e62-8c09-81019bf26060@redhat.com/
2. https://lore.kernel.org/git/pull.1132.v6.git.1661885419.gitgitgadget@gmail.com/
3. https://lore.kernel.org/git/92b3b116ef8f879192d9deb94d68b73e29d5dcd6.1661885419.git.gitgitgadget@gmail.com/
4. https://lore.kernel.org/git/081f3f7f9501012404fb9e59ab6d94f632180b53.1667561761.git.congdanhqx@gmail.com/

Johannes Schindelin (3):
  bisect--helper: remove dead --bisect-{next-check,autostart} code
  bisect--helper: make `state` optional
  Turn `git bisect` into a full built-in

Ævar Arnfjörð Bjarmason (10):
  bisect tests: test for v2.30.0 "bisect run" regressions
  bisect: refactor bisect_run() to match CodingGuidelines
  bisect: fix output regressions in v2.30.0
  bisect run: fix "--log" eating regression in v2.30.0
  bisect run: keep some of the post-v2.30.0 output
  bisect test: test exit codes on bad usage
  bisect--helper: emit usage for "git bisect"
  bisect--helper: have all functions take state, argc, argv, prefix
  parse-options API: don't restrict OPT_SUBCOMMAND() to one *_fn  type
  bisect--helper: convert to OPT_SUBCOMMAND_CB()

 Makefile                               |   3 +-
 builtin.h                              |   2 +-
 builtin/{bisect--helper.c => bisect.c} | 250 +++++++++++++------------
 git-bisect.sh                          |  84 ---------
 git.c                                  |   2 +-
 parse-options.c                        |   9 +-
 parse-options.h                        |  31 ++-
 t/t6030-bisect-porcelain.sh            | 109 +++++++++++
 8 files changed, 277 insertions(+), 213 deletions(-)
 rename builtin/{bisect--helper.c => bisect.c} (86%)
 delete mode 100755 git-bisect.sh

-- 
2.38.0.1452.g710f45c7951