From: ZheNing Hu <adlternative@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: ZheNing Hu via GitGitGadget <gitgitgadget@gmail.com>,
Git List <git@vger.kernel.org>,
"Bradley M. Kuhn" <bkuhn@sfconservancy.org>,
Brandon Casey <drafnel@gmail.com>,
Shourya Shukla <periperidip@gmail.com>,
Christian Couder <christian.couder@gmail.com>,
Rafael Silva <rafaeloliveira.cs@gmail.com>
Subject: Re: [PATCH v4] [GSOC] commit: add --trailer option
Date: Mon, 15 Mar 2021 13:11:07 +0800 [thread overview]
Message-ID: <CAOLTT8T9X8d-cY1sCmiFAKRo5t4pbxoLjjt8+Nm1htaKV6D6DA@mail.gmail.com> (raw)
In-Reply-To: <xmqqczw12fqg.fsf@gitster.g>
Junio C Hamano <gitster@pobox.com> 于2021年3月15日周一 下午12:38写道:
>
> "ZheNing Hu via GitGitGadget" <gitgitgadget@gmail.com> writes:
>
> One thing I forgot to mention.
>
> > +static int opt_pass_trailer(const struct option *opt, const char *arg, int unset)
> > +{
> > + if (unset) {
> > + strvec_clear(&run_trailer.args);
> > + return -1;
>
> What input is this part of the code designed to handle, and what
> outcome does it want to show to the user?
>
> Does the test added in this patch cover this codepath, where unset
> is true?
>
> I think this codepath is reached when the command line says
> "--no-trailer", and I am guessing that by clearing the code wants to
> say "ignore the accumulated trailers and start accumulating afresh",
> i.e.
>
> git commit --trailer='T1: V1' --trailer='T2: V2' \
> --no-trailer \
> --trailer='T3: V3'
>
> would want to add only the "T3: V3" trailer; which is a sensible
> design, but I do not think returning -1 would be compatible with
> that design.
>
> If on the other hand the code wants to say "--no-trailer is a
> command line error", then using PARSE_OPT_NONEG to let the
> parse-options API issue an error message and die would be more
> appropriate. That is an often used pattern for an option that can
> appear on the command line only once without accumulating, which may
> be less appropriate for the "--trailer", though.
>
As you said, what I want to express is "--no-trailer is acommand line error".
`--no-trailer` may don't have any big benefits for users.
I will follow you suggections.
> > + }
> > + strvec_pushl(&run_trailer.args, "--trailer", arg, NULL);
> > + return 0;
> > +}
>
prev parent reply other threads:[~2021-03-15 5:12 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-11 7:16 [PATCH] [GSOC] commit: provides multiple common signatures ZheNing Hu via GitGitGadget
2021-03-11 15:03 ` Shourya Shukla
2021-03-12 11:41 ` ZheNing Hu
2021-03-11 17:28 ` Junio C Hamano
2021-03-12 12:01 ` ZheNing Hu
2021-03-12 13:22 ` ZheNing Hu
2021-03-12 15:54 ` [PATCH v2] [GSOC] commit: add trailer command ZheNing Hu via GitGitGadget
2021-03-14 4:19 ` Christian Couder
2021-03-14 7:09 ` ZheNing Hu
2021-03-14 22:45 ` Junio C Hamano
2021-03-14 13:02 ` [PATCH v3] [GSOC] commit: add --trailer option ZheNing Hu via GitGitGadget
2021-03-14 13:10 ` Rafael Silva
2021-03-14 14:13 ` ZheNing Hu
2021-03-14 15:58 ` [PATCH v4] " ZheNing Hu via GitGitGadget
2021-03-14 23:52 ` Junio C Hamano
2021-03-15 1:27 ` ZheNing Hu
2021-03-15 4:42 ` Junio C Hamano
2021-03-15 5:14 ` ZheNing Hu
2021-03-15 3:24 ` [PATCH v5] " ZheNing Hu via GitGitGadget
2021-03-15 5:33 ` Christian Couder
2021-03-15 5:41 ` Christian Couder
2021-03-15 5:46 ` ZheNing Hu
2021-03-15 6:35 ` [PATCH v6] " ZheNing Hu via GitGitGadget
2021-03-15 8:02 ` Christian Couder
2021-03-15 8:21 ` ZheNing Hu
2021-03-15 9:08 ` [PATCH v7] " ZheNing Hu via GitGitGadget
2021-03-15 10:00 ` Christian Couder
2021-03-15 10:14 ` Christian Couder
2021-03-15 11:32 ` ZheNing Hu
2021-03-16 5:37 ` Christian Couder
2021-03-16 8:35 ` ZheNing Hu
2021-03-15 13:07 ` [PATCH v8 0/2] " ZheNing Hu via GitGitGadget
2021-03-15 13:07 ` [PATCH v8 1/2] " ZheNing Hu via GitGitGadget
2021-03-16 12:52 ` Ævar Arnfjörð Bjarmason
2021-03-17 2:01 ` ZheNing Hu
2021-03-17 8:08 ` Ævar Arnfjörð Bjarmason
2021-03-17 13:54 ` ZheNing Hu
2021-03-15 13:07 ` [PATCH v8 2/2] interpret_trailers: for three options parse add warning ZheNing Hu via GitGitGadget
2021-03-16 5:53 ` Christian Couder
2021-03-16 9:11 ` ZheNing Hu
2021-03-16 10:39 ` [PATCH v9] [GSOC] commit: add --trailer option ZheNing Hu via GitGitGadget
2021-03-17 5:26 ` Shourya Shukla
2021-03-17 6:06 ` ZheNing Hu
2021-03-18 11:15 ` [PATCH v10 0/3] " ZheNing Hu via GitGitGadget
2021-03-18 11:15 ` [PATCH v10 1/3] " ZheNing Hu via GitGitGadget
2021-03-18 16:29 ` Đoàn Trần Công Danh
2021-03-19 7:56 ` ZheNing Hu
2021-03-18 11:15 ` [PATCH v10 2/3] interpret-trailers: add own-identity option ZheNing Hu via GitGitGadget
2021-03-18 16:45 ` Đoàn Trần Công Danh
2021-03-19 8:04 ` ZheNing Hu
2021-03-18 19:20 ` Junio C Hamano
2021-03-19 9:33 ` ZheNing Hu
2021-03-19 15:36 ` Junio C Hamano
2021-03-20 2:54 ` ZheNing Hu
2021-03-20 5:06 ` Jeff King
2021-03-20 5:50 ` Junio C Hamano
2021-03-20 6:16 ` ZheNing Hu
2021-03-20 6:38 ` ZheNing Hu
2021-03-20 6:53 ` Junio C Hamano
2021-03-20 8:43 ` ZheNing Hu
2021-03-18 11:15 ` [PATCH v10 3/3] commit: " ZheNing Hu via GitGitGadget
2021-03-18 13:47 ` [PATCH v10 0/3] [GSOC] commit: add --trailer option Christian Couder
2021-03-18 15:27 ` ZheNing Hu
2021-03-19 12:05 ` [PATCH v11] " ZheNing Hu via GitGitGadget
2021-03-19 17:48 ` Junio C Hamano
2021-03-20 13:41 ` [PATCH v12] " ZheNing Hu via GitGitGadget
2021-03-22 4:24 ` [PATCH v13] " ZheNing Hu via GitGitGadget
2021-03-22 7:43 ` Christian Couder
2021-03-22 10:23 ` ZheNing Hu
2021-03-22 21:34 ` Christian Couder
2021-03-23 6:11 ` ZheNing Hu
2021-03-23 6:19 ` Junio C Hamano
2021-03-23 7:57 ` Christian Couder
2021-03-23 17:11 ` Junio C Hamano
2021-03-24 5:21 ` ZheNing Hu
2021-03-23 10:35 ` ZheNing Hu
2021-03-23 12:41 ` Christian Couder
2021-03-23 17:12 ` Junio C Hamano
2021-03-24 5:25 ` ZheNing Hu
2021-03-22 21:55 ` Christian Couder
2021-03-23 6:29 ` ZheNing Hu
2021-03-23 13:55 ` [PATCH v14] " ZheNing Hu via GitGitGadget
2021-03-15 4:38 ` [PATCH v4] " Junio C Hamano
2021-03-15 5:11 ` ZheNing Hu [this message]
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