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From: Junio C Hamano <gitster@pobox.com>
To: Linus Arver <linusa@google.com>
Cc: Linus Arver via GitGitGadget <gitgitgadget@gmail.com>,
	git@vger.kernel.org, Christian Couder <chriscool@tuxfamily.org>,
	Phillip Wood <phillip.wood123@gmail.com>
Subject: Re: [PATCH v2 5/6] trailer: rename *_DEFAULT enums to *_UNSPECIFIED
Date: Wed, 13 Sep 2023 20:16:21 -0700	[thread overview]
Message-ID: <xmqq1qf1la0q.fsf@gitster.g> (raw)
In-Reply-To: <owlyzg1pjx2f.fsf@fine.c.googlers.com> (Linus Arver's message of "Wed, 13 Sep 2023 19:41:28 -0700")

Linus Arver <linusa@google.com> writes:

>> It gets tempting to initialize a variable to the default and arrange
>> the rest of the system so that the variable set to the default
>> triggers the default activity.  Such an obvious solution however
>> cannot be used when (1) being left unspecified to use the default
>> value and (2) explicitly set by the user to a value that happens to
>> be the same as the default have to behave differently.  I am not
>> sure if that applies to the trailers system, though.
>>
>> Thanks.
>
> I get the feeling that you wrote the "Such an obvious ... differently"
> sentence after writing the last sentence in that paragraph, because when
> you say
>
>     I am not
>     sure if that applies to the trailers system, though.
>
> I read the "that" (emphasis added) in there as referring to the solution
> described in the first sentence, and not the conditions (1) and (2) you
> enumerated. IOW, you are OK with this patch.

"that" refers to "the reason not to use such an obvious solution".
I do not know if trailer subsystem wants to treat "left unspecified"
and "set to the value that happens to be the same as the default" in
a different way.  If it does want to do so, then I do not see a
strong reason not to use the "obvious solution".

Thanks.

  reply	other threads:[~2023-09-14  3:16 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-05  5:04 [PATCH 0/5] Trailer readability cleanups Linus Arver via GitGitGadget
2023-08-05  5:04 ` [PATCH 1/5] trailer: separate public from internal portion of trailer_iterator Linus Arver via GitGitGadget
2023-08-07 21:16   ` Glen Choo
2023-08-08 12:19     ` Phillip Wood
2023-08-10 23:15       ` Linus Arver
2023-08-10 22:50     ` Linus Arver
2023-08-05  5:04 ` [PATCH 2/5] trailer: split process_input_file into separate pieces Linus Arver via GitGitGadget
2023-08-07 22:39   ` Glen Choo
2023-08-11  0:41     ` Linus Arver
2023-08-05  5:04 ` [PATCH 3/5] trailer: split process_command_line_args into separate functions Linus Arver via GitGitGadget
2023-08-07 22:51   ` Glen Choo
2023-08-11  0:59     ` Linus Arver
2023-08-11  1:02       ` Linus Arver
2023-08-11 21:11       ` Glen Choo
2023-08-05  5:04 ` [PATCH 4/5] trailer: teach find_patch_start about --no-divider Linus Arver via GitGitGadget
2023-08-07 23:28   ` Glen Choo
2023-08-11  1:25     ` Linus Arver
2023-08-11 20:51       ` Glen Choo
2023-08-05  5:04 ` [PATCH 5/5] trailer: rename *_DEFAULT enums to *_UNSPECIFIED Linus Arver via GitGitGadget
2023-08-07 23:45   ` Glen Choo
2023-08-11 18:00     ` Linus Arver
2023-09-09  6:16 ` [PATCH v2 0/6] Trailer readability cleanups Linus Arver via GitGitGadget
2023-09-09  6:16   ` [PATCH v2 1/6] trailer: separate public from internal portion of trailer_iterator Linus Arver via GitGitGadget
2023-09-11 17:10     ` Junio C Hamano
2023-09-09  6:16   ` [PATCH v2 2/6] trailer: split process_input_file into separate pieces Linus Arver via GitGitGadget
2023-09-11 17:10     ` Junio C Hamano
2023-09-09  6:16   ` [PATCH v2 3/6] trailer: split process_command_line_args into separate functions Linus Arver via GitGitGadget
2023-09-09  6:16   ` [PATCH v2 4/6] trailer: teach find_patch_start about --no-divider Linus Arver via GitGitGadget
2023-09-11 17:25     ` Junio C Hamano
2023-09-14  2:19       ` Linus Arver
2023-09-14  3:12         ` Junio C Hamano
2023-09-14  5:31           ` Linus Arver
2023-09-09  6:16   ` [PATCH v2 5/6] trailer: rename *_DEFAULT enums to *_UNSPECIFIED Linus Arver via GitGitGadget
2023-09-11 18:54     ` Junio C Hamano
2023-09-14  2:41       ` Linus Arver
2023-09-14  3:16         ` Junio C Hamano [this message]
2023-09-22 18:23           ` Linus Arver
2023-09-22 19:48             ` Junio C Hamano
2023-09-26  5:30               ` Linus Arver
2023-09-09  6:16   ` [PATCH v2 6/6] trailer: use offsets for trailer_start/trailer_end Linus Arver via GitGitGadget
2023-09-11 19:01     ` Junio C Hamano
2023-09-14  1:21       ` Linus Arver
2023-09-14  3:18         ` Linus Arver
2023-09-22 19:50   ` [PATCH v3 0/9] Trailer readability cleanups Linus Arver via GitGitGadget
2023-09-22 19:50     ` [PATCH v3 1/9] trailer: separate public from internal portion of trailer_iterator Linus Arver via GitGitGadget
2023-09-22 19:50     ` [PATCH v3 2/9] trailer: split process_input_file into separate pieces Linus Arver via GitGitGadget
2023-09-22 19:50     ` [PATCH v3 3/9] trailer: split process_command_line_args into separate functions Linus Arver via GitGitGadget
2023-09-22 19:50     ` [PATCH v3 4/9] trailer: rename *_DEFAULT enums to *_UNSPECIFIED Linus Arver via GitGitGadget
2023-09-22 19:50     ` [PATCH v3 5/9] commit: ignore_non_trailer computes number of bytes to ignore Linus Arver via GitGitGadget
2023-09-22 19:50     ` [PATCH v3 6/9] trailer: find the end of the log message Linus Arver via GitGitGadget
2023-09-22 19:50     ` [PATCH v3 7/9] trailer: use offsets for trailer_start/trailer_end Linus Arver via GitGitGadget
2023-09-22 19:50     ` [PATCH v3 8/9] trailer: only use trailer_block_* variables if trailers were found Linus Arver via GitGitGadget
2023-09-22 19:50     ` [PATCH v3 9/9] trailer: make stack variable names match field names Linus Arver via GitGitGadget
2023-09-22 22:47     ` [PATCH v3 0/9] Trailer readability cleanups Junio C Hamano
2023-09-22 23:13       ` Linus Arver
2023-09-23  0:48         ` Junio C Hamano
2023-09-26  5:40           ` Linus Arver
2023-09-26  6:22     ` [PATCH v4 0/4] " Linus Arver via GitGitGadget
2023-09-26  6:22       ` [PATCH v4 1/4] commit: ignore_non_trailer computes number of bytes to ignore Linus Arver via GitGitGadget
2023-09-26  6:22       ` [PATCH v4 2/4] trailer: find the end of the log message Linus Arver via GitGitGadget
2023-09-28 23:16         ` Jonathan Tan
2023-10-20  0:24           ` Linus Arver
2023-10-20  0:36             ` Junio C Hamano
2023-09-26  6:22       ` [PATCH v4 3/4] trailer: use offsets for trailer_start/trailer_end Linus Arver via GitGitGadget
2023-09-26  6:22       ` [PATCH v4 4/4] trailer: only use trailer_block_* variables if trailers were found Linus Arver via GitGitGadget
2023-10-20 19:01       ` [PATCH v5 0/3] Trailer readability cleanups Linus Arver via GitGitGadget
2023-10-20 19:01         ` [PATCH v5 1/3] commit: ignore_non_trailer computes number of bytes to ignore Linus Arver via GitGitGadget
2023-10-20 19:01         ` [PATCH v5 2/3] trailer: find the end of the log message Linus Arver via GitGitGadget
2023-10-20 21:29           ` Junio C Hamano
2023-12-29  6:42             ` Linus Arver
2023-12-29 21:03               ` Linus Arver
2023-10-20 19:01         ` [PATCH v5 3/3] trailer: use offsets for trailer_start/trailer_end Linus Arver via GitGitGadget

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