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From: Christian Couder <christian.couder@gmail.com>
To: ZheNing Hu via GitGitGadget <gitgitgadget@gmail.com>
Cc: git <git@vger.kernel.org>,
	"Bradley M. Kuhn" <bkuhn@sfconservancy.org>,
	Junio C Hamano <gitster@pobox.com>,
	Brandon Casey <drafnel@gmail.com>,
	Shourya Shukla <periperidip@gmail.com>,
	Rafael Silva <rafaeloliveira.cs@gmail.com>,
	ZheNing Hu <adlternative@gmail.com>
Subject: Re: [PATCH v8 2/2] interpret_trailers: for three options parse add warning
Date: Tue, 16 Mar 2021 06:53:25 +0100	[thread overview]
Message-ID: <CAP8UFD0tgXi6Hq42dzsAAGMOhvLxqaUuBqex0CreyRb_XD5rxQ@mail.gmail.com> (raw)
In-Reply-To: <68e0bd9e2d6f0a89d60db730eb77507d6a17a5ae.1615813658.git.gitgitgadget@gmail.com>

On Mon, Mar 15, 2021 at 2:07 PM ZheNing Hu via GitGitGadget
<gitgitgadget@gmail.com> wrote:
>
> From: ZheNing Hu <adlternative@gmail.com>
>
> When using `interpret-trailers`, if user accidentally fill in the
> wrong option values (e.g. `--if-exists=addd` or `--where=begin` or
> `--if-missing=do-nothing`), git will exit quietly, and the user may
> not even know what happened.
>
> So lets provides warnings when git parsing this three options:
> "unknown value '%s' for key ('where'|'--if-exist'|'--if-missing')".
> This will remind the user :"Oh, it was because of my spelling error."
> (or using a synonym for error).

I am not against this, but I just want to say that when I previously
worked on `interpret-trailers` I think I implemented or suggested such
warnings, but they were rejected.

I think the reason they were rejected was to improve compatibility
with future versions of Git where more options would be implemented.

For example if in a few years someone implements `--where=middle` and
some people use it in a script like this:

git interpret-trailers --where=middle --trailer foo=bar

Then when such a script would be used with a recent version of Git it
would work well, while if it would be used with an old version of Git
it would emit warnings. And these warnings might actually be more
annoying than the fact that the trailer is not put in the middle.

I might be wrong and there might have been other reasons though. Also
things might have changed since that time, as not many options if any
have been added since then.

  reply	other threads:[~2021-03-16  5:54 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 [this message]
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

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