From: Junio C Hamano <gitster@pobox.com>
To: "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>
Cc: felipe.contreras@gmail.com, git@vger.kernel.org, szeder.dev@gmail.com
Subject: Re: [PATCH v2] completion: do not cache if --git-completion-helper fails
Date: Wed, 12 Jun 2019 10:36:12 -0700 [thread overview]
Message-ID: <xmqqa7emk8oj.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <20190612085606.12144-1-pclouds@gmail.com> ("Nguyễn Thái Ngọc Duy"'s message of "Wed, 12 Jun 2019 15:56:06 +0700")
Nguyễn Thái Ngọc Duy <pclouds@gmail.com> writes:
> "git <cmd> --git-completion-helper" could fail if the command checks for
> a repo before parse_options(). If the result is cached, later on when
> the user moves to a worktree with repo, tab completion will still fail.
>
> Avoid this by detecting errors and not cache the completion output. We
> can try again and hopefully succeed next time (e.g. when a repo is
> found).
>
> Of course if --git-completion-helper fails permanently because of other
> reasons (*), this will slow down completion. But I don't see any better
> option to handle that case.
>
> (*) one of those cases is if __gitcomp_builtin is called on a command
> that does not support --git-completion-helper. And we do have a
> generic call
>
> __git_complete_common "$command"
>
> but this case is protected with __git_support_parseopt_helper so we're
> good.
>
> Reported-by: Felipe Contreras <felipe.contreras@gmail.com>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
> ---
> v2 simplifies the code. $nocache in v1 was overkill.
Nicely done. Thanks, all. Will queue.
>
> contrib/completion/git-completion.bash | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
> index 9f71bcde96..8c6b610a24 100644
> --- a/contrib/completion/git-completion.bash
> +++ b/contrib/completion/git-completion.bash
> @@ -400,7 +400,8 @@ __gitcomp_builtin ()
> if [ -z "$options" ]; then
> # leading and trailing spaces are significant to make
> # option removal work correctly.
> - options=" $incl $(__git ${cmd/_/ } --git-completion-helper) "
> + options=" $incl $(__git ${cmd/_/ } --git-completion-helper) " || return
> +
> for i in $excl; do
> options="${options/ $i / }"
> done
prev parent reply other threads:[~2019-06-12 17:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-07 2:24 [PATCH] test: completion: tests for __gitcomp regression Felipe Contreras
2019-06-07 9:30 ` [PATCH] completion: do not cache if --git-completion-helper fails Nguyễn Thái Ngọc Duy
2019-06-07 10:02 ` SZEDER Gábor
2019-06-07 17:33 ` Felipe Contreras
2019-06-12 8:52 ` Duy Nguyen
2019-06-14 0:30 ` Felipe Contreras
2019-06-14 2:52 ` Duy Nguyen
2019-06-14 6:06 ` Felipe Contreras
2019-06-16 1:32 ` Duy Nguyen
2019-06-07 16:35 ` Junio C Hamano
2019-06-12 8:56 ` [PATCH v2] " Nguyễn Thái Ngọc Duy
2019-06-12 17:36 ` Junio C Hamano [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=xmqqa7emk8oj.fsf@gitster-ct.c.googlers.com \
--to=gitster@pobox.com \
--cc=felipe.contreras@gmail.com \
--cc=git@vger.kernel.org \
--cc=pclouds@gmail.com \
--cc=szeder.dev@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).