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From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, Jeff King <peff@peff.net>,
	Carlo Arenas <carenas@gmail.com>,
	Eric Sunshine <sunshine@sunshineco.com>
Subject: Re: [PATCH v2 2/6] git.c: add a NEED_UNIX_SOCKETS option for built-ins
Date: Sat, 11 Sep 2021 04:50:54 +0200	[thread overview]
Message-ID: <87mtojaklj.fsf@evledraar.gmail.com> (raw)
In-Reply-To: <xmqqr1dwotmn.fsf@gitster.g>


On Fri, Sep 10 2021, Junio C Hamano wrote:

> Ævar Arnfjörð Bjarmason  <avarab@gmail.com> writes:
>
>> Change the implementation of b5dd96b70ac (make credential helpers
>> builtins, 2020-08-13) to declare in the "struct cmd_struct" that
>> NO_UNIX_SOCKETS can't be set.
>
> It may happen to be that two credential-cache program are both
> related to the same CPP macro NO_UNIX_SOCKETS, but I think the
> pattern you are tackling with this topic is that a fallback
> definition of a function that is designed to always die when invoked
> misuses the parse-options API.  I do not want to see you invent a
> new bit in cmd_struct for each and every conditional that lets us
> define such a die-only fallback implementation.
>
> I may be missing something obvious, but can't the following suffice,
> and if not, why?

I think this is covered if you go on to read the rest of the commit
message, i.e. yes we could, but the trade-off is making the test and
users that might want to use --list-cmds=builtins hardcode these two as
special cases under the relevant prereq.

Hence doing this in the main git.c dispatch mechanism, if we can't ever
do anything useful with these it seems best to mark them as such at
compile-time in that dispatch mechanism.

  reply	other threads:[~2021-09-11  2:53 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-01 11:12 [PATCH 0/2] parse-options: properly align continued usage output Ævar Arnfjörð Bjarmason
2021-09-01 11:12 ` [PATCH 1/2] built-ins: "properly" " Ævar Arnfjörð Bjarmason
2021-09-01 11:12 ` [PATCH 2/2] parse-options: properly " Ævar Arnfjörð Bjarmason
2021-09-10  7:51   ` Eric Sunshine
2021-09-10 15:38 ` [PATCH v2 0/6] parse-options: properly align continued usage output & related Ævar Arnfjörð Bjarmason
2021-09-10 15:38   ` [PATCH v2 1/6] test-lib.sh: add a UNIX_SOCKETS prerequisite Ævar Arnfjörð Bjarmason
2021-09-10 15:38   ` [PATCH v2 2/6] git.c: add a NEED_UNIX_SOCKETS option for built-ins Ævar Arnfjörð Bjarmason
2021-09-11  0:14     ` Junio C Hamano
2021-09-11  2:50       ` Ævar Arnfjörð Bjarmason [this message]
2021-09-11  3:47         ` Carlo Marcelo Arenas Belón
2021-09-11  6:12           ` Junio C Hamano
2021-09-11  7:16           ` Ævar Arnfjörð Bjarmason
2021-09-10 15:38   ` [PATCH v2 3/6] parse-options: stop supporting "" in the usagestr array Ævar Arnfjörð Bjarmason
2021-09-11  0:21     ` Junio C Hamano
2021-09-11  2:46       ` Ævar Arnfjörð Bjarmason
2021-09-11  6:52         ` Junio C Hamano
2021-09-10 15:38   ` [PATCH v2 4/6] built-ins: "properly" align continued usage output Ævar Arnfjörð Bjarmason
2021-09-11  0:25     ` Junio C Hamano
2021-09-11  2:40       ` Ævar Arnfjörð Bjarmason
2021-09-10 15:38   ` [PATCH v2 5/6] send-pack: properly use parse_options() API for usage string Ævar Arnfjörð Bjarmason
2021-09-10 15:38   ` [PATCH v2 6/6] parse-options: properly align continued usage output Ævar Arnfjörð Bjarmason
2021-09-11  7:41   ` [PATCH v2 0/6] parse-options: properly align continued usage output & related Eric Sunshine
2021-09-11 19:08   ` [PATCH v3 " Ævar Arnfjörð Bjarmason
2021-09-11 19:09     ` [PATCH v3 1/6] credential-cache{,--daemon}: don't build under NO_UNIX_SOCKETS Ævar Arnfjörð Bjarmason
2021-09-12 21:48       ` Junio C Hamano
2021-09-11 19:09     ` [PATCH v3 2/6] blame: replace usage end blurb with better option spec Ævar Arnfjörð Bjarmason
2021-09-12  4:45       ` Eric Sunshine
2021-09-12 22:22       ` Junio C Hamano
2021-09-11 19:09     ` [PATCH v3 3/6] parse-options: stop supporting "" in the usagestr array Ævar Arnfjörð Bjarmason
2021-09-12 22:26       ` Junio C Hamano
2021-09-13  0:21         ` Ævar Arnfjörð Bjarmason
2021-09-11 19:09     ` [PATCH v3 4/6] built-ins: "properly" align continued usage output Ævar Arnfjörð Bjarmason
2021-09-11 19:09     ` [PATCH v3 5/6] send-pack: properly use parse_options() API for usage string Ævar Arnfjörð Bjarmason
2021-09-11 19:09     ` [PATCH v3 6/6] parse-options: properly align continued usage output Ævar Arnfjörð Bjarmason
2021-09-13  0:13     ` [PATCH v4 0/4] " Ævar Arnfjörð Bjarmason
2021-09-13  0:13       ` [PATCH v4 1/4] parse-options API users: align usage output in C-strings Ævar Arnfjörð Bjarmason
2021-09-13  0:13       ` [PATCH v4 2/4] send-pack: properly use parse_options() API for usage string Ævar Arnfjörð Bjarmason
2021-09-13  0:13       ` [PATCH v4 3/4] git rev-parse --parseopt tests: add more usagestr tests Ævar Arnfjörð Bjarmason
2021-09-13  0:13       ` [PATCH v4 4/4] parse-options: properly align continued usage output Ævar Arnfjörð Bjarmason
2021-09-13  6:41         ` Junio C Hamano
2021-09-21 13:30       ` [PATCH v5 0/4] " Ævar Arnfjörð Bjarmason
2021-09-21 13:30         ` [PATCH v5 1/4] parse-options API users: align usage output in C-strings Ævar Arnfjörð Bjarmason
2021-09-21 13:30         ` [PATCH v5 2/4] send-pack: properly use parse_options() API for usage string Ævar Arnfjörð Bjarmason
2021-09-21 13:30         ` [PATCH v5 3/4] git rev-parse --parseopt tests: add more usagestr tests Ævar Arnfjörð Bjarmason
2021-09-21 13:30         ` [PATCH v5 4/4] parse-options: properly align continued usage output Ævar Arnfjörð Bjarmason

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