Re: [PATCH v2] completion: use builtin completion for format-patch

[Duy Nguyen <pclouds@gmail.com>]

On Thu, Nov 1, 2018 at 2:42 AM Junio C Hamano <gitster@pobox.com> wrote:
> >> @@ -2080,16 +2071,19 @@ _git_send_email ()
> >>                 return
> >>                 ;;
> >>         --*)
> >> -               __gitcomp "--annotate --bcc --cc --cc-cmd --chain-reply-to
> >> -                       --compose --confirm= --dry-run --envelope-sender
> >> -                       --from --identity
> >> -                       --in-reply-to --no-chain-reply-to --no-signed-off-by-cc
> >> -                       --no-suppress-from --no-thread --quiet --reply-to
> >> -                       --signed-off-by-cc --smtp-pass --smtp-server
> >> -                       --smtp-server-port --smtp-encryption= --smtp-user
> >> -                       --subject --suppress-cc= --suppress-from --thread --to
> >> -                       --validate --no-validate
> >> -                       $__git_format_patch_options"
> >> +               __gitcomp "--all --annotate --attach --bcc --binary --cc --cc= --cc-cmd
> >> +                       --chain-reply-to --compose --confirm= --cover-letter --dry-run
> >> +                       --dst-prefix= --envelope-sender --from --full-index --identity
> >> +                       --ignore-if-in-upstream --inline --in-reply-to --in-reply-to=
> >> +                       --keep-subject --no-attach --no-chain-reply-to --no-prefix
> >> +                       --no-signature --no-signed-off-by-cc --no-suppress-from --not --notes
> >> +                       --no-thread --no-validate --numbered --numbered-files
> >> +                       --output-directory --quiet --reply-to --reroll-count --signature
> >> +                       --signed-off-by-cc --signoff --smtp-encryption= --smtp-pass
> >> +                       --smtp-server --smtp-server-port --smtp-user --src-prefix=
> >> +                       --start-number --stdout --subject --subject-prefix= --suffix=
> >> +                       --suppress-cc= --suppress-from --thread --thread= --to --to=
> >> +                       --validate"
> >
> > I have no comment about this. In an ideal world, sendemail.perl could
> > be taught to support --git-completion-helper but I don't think my
> > little remaining Perl knowledge (or time) is enough to do it. Perhaps
> > this will do. I don't know.
>
> So "all", "attach", etc. are added to this list while these similar
> options are lost from the other variable?  Is this a good trade-off?

Not sure if I understand you correctly, but it looks to me that the
options in git-send-email.perl are well organized, so we could add
--git-completon-helper in that script to print all send-email specific
options, then call "git format-patch --git-completion-helper" to add a
bunch more. The options that are handled by setup_revisions() will
have to be maintained manually here like $__git_format_patch_options
and added on top in both _git_send_email () and _git_format_patch ().

So, nothing option is lost and by the time setup_revisions() supports
-git-completion-helper, we can get rid of the manual shell variable
too. The downside is, lots of work, probably.
-- 
Duy