[PATCH v2 00/41] Automate updating git-completion.bash a bit

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

I posted a proof of concept a while back [1]. This is the full version.

This series lets "git" binary help git-completion.bash to complete
--<stuff> so that when a new option is added, we don't have to update
git-completion.bash manually too (people often forget it). As a side
effect, about 180 more options are now completable.

parse-options is updated to allow developers to flag certain options
not to be completable if they want finer control over it.  But by
default, new non-hidden options are completable. Negative forms must
be handled manually. That's for the next step.

The number of patches is high, but changes after the first four
patches and 33/41 are quite simple. I still need some eyeballs though
to make sure I have not accidentally allowed completion of dangerous
options. Details are broken down per command in each commit message.

If people want to play with this, I have a script [2] that shows all
completable options for most commands (I ignore some that are
shell-based because I don't touch them in this series). You can then
do a "diff" to see new/old options.

There's a small conflict with 'pu' because --prune-tags is added in
git-completion.bash. The solution is simple and beautiful: ignore
those changes, --prune-tags will be completable anyway :)

[1] https://public-inbox.org/git/%3C20180116103700.4505-1-pclouds@gmail.com%3E/
[2] https://gist.github.com/pclouds/f337d4393b5cfab813909b8eea2eaa40

Nguyễn Thái Ngọc Duy (41):
  parse-options: support --git-completion-helper
  parse-options: add OPT_xxx_F() variants
  parse-options: let OPT__FORCE take optional flags argument
  git-completion.bash: introduce __gitcomp_builtin
  completion: use __gitcomp_builtin in _git_add
  completion: use __gitcomp_builtin in _git_am
  completion: use __gitcomp_builtin in _git_apply
  completion: use __gitcomp_builtin in _git_branch
  completion: use __gitcomp_builtin in _git_checkout
  completion: use __gitcomp_builtin in _git_cherry_pick
  completion: use __gitcomp_builtin in _git_clean
  completion: use __gitcomp_builtin in _git_clone
  completion: use __gitcomp_builtin in _git_commit
  completion: use __gitcomp_builtin in _git_config
  completion: use __gitcomp_builtin in _git_describe
  completion: use __gitcomp_builtin in _git_difftool
  completion: use __gitcomp_builtin in _git_fetch
  completion: use __gitcomp_builtin in _git_fsck
  completion: use __gitcomp_builtin in _git_gc
  completion: use __gitcomp_builtin in _git_grep
  completion: use __gitcomp_builtin in _git_help
  completion: use __gitcomp_builtin in _git_init
  completion: use __gitcomp_builtin in _git_ls_files
  completion: use __gitcomp_builtin in _git_ls_remote
  completion: use __gitcomp_builtin in _git_merge
  completion: use __gitcomp_builtin in _git_merge_base
  completion: use __gitcomp_builtin in _git_mv
  completion: use __gitcomp_builtin in _git_name_rev
  completion: use __gitcomp_builtin in _git_notes
  completion: use __gitcomp_builtin in _git_pull
  completion: use __gitcomp_builtin in _git_push
  completion: use __gitcomp_builtin in _git_remote
  remote: force completing --mirror= instead of --mirror
  completion: use __gitcomp_builtin in _git_replace
  completion: use __gitcomp_builtin in _git_reset
  completion: use __gitcomp_builtin in _git_revert
  completion: use __gitcomp_builtin in _git_rm
  completion: use __gitcomp_builtin in _git_show_branch
  completion: use __gitcomp_builtin in _git_status
  completion: use __gitcomp_builtin in _git_tag
  completion: use __gitcomp_builtin in _git_worktree

 apply.c                                |   5 +-
 builtin/add.c                          |   2 +-
 builtin/am.c                           |  16 +-
 builtin/branch.c                       |   2 +-
 builtin/checkout-index.c               |   2 +-
 builtin/checkout.c                     |   7 +-
 builtin/clean.c                        |   2 +-
 builtin/fetch.c                        |   2 +-
 builtin/gc.c                           |   7 +-
 builtin/grep.c                         |  13 +-
 builtin/ls-remote.c                    |   5 +-
 builtin/mv.c                           |   3 +-
 builtin/notes.c                        |   4 +-
 builtin/pull.c                         |   2 +-
 builtin/push.c                         |   2 +-
 builtin/remote.c                       |   2 +-
 builtin/replace.c                      |   3 +-
 builtin/revert.c                       |  12 +-
 builtin/rm.c                           |   2 +-
 builtin/tag.c                          |   2 +-
 builtin/update-server-info.c           |   2 +-
 builtin/worktree.c                     |   4 +-
 contrib/completion/git-completion.bash | 276 +++++++++----------------
 parse-options.c                        |  46 +++++
 parse-options.h                        |  40 ++--
 rerere.h                               |   3 +-
 t/t9902-completion.sh                  |  12 +-
 27 files changed, 236 insertions(+), 242 deletions(-)

-- 
2.16.1.205.g271f633410