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From: Eric Sunshine <sunshine@sunshineco.com>
To: "Taylor Blau" <me@ttaylorr.com>, "SZEDER Gábor" <szeder.dev@gmail.com>
Cc: Derrick Stolee <derrickstolee@github.com>,
	Junio C Hamano <gitster@pobox.com>,
	git@vger.kernel.org
Subject: Re: [PATCH 2/3] t0033-safe-directory: check when 'safe.directory' is ignored
Date: Tue, 10 May 2022 16:18:34 -0400	[thread overview]
Message-ID: <69897c46-abe7-f4d0-b43a-f60e0215927c@sunshineco.com> (raw)
In-Reply-To: <YnrDK0wCV6taY1QX@nand.local>

On 5/10/22 3:55 PM, Taylor Blau wrote:
> On Tue, May 10, 2022 at 08:33:21PM +0200, SZEDER Gábor wrote:
>> On Fri, Apr 29, 2022 at 03:19:01PM -0400, Derrick Stolee wrote:
>>> Would it be simpler to use this?
>>>
>>> 	GIT_TEST_ASSUME_DIFFERENT_USER=0 git config --unset safe.directory
>>
>> Oh, wow.  This is so obvious, no wonder it didn't occur to me :)
> 
> Don't we consider this one-shot environment variable to be sticky on
> some shells (i.e., that it persists beyond just the "git config"
> invocation here)?

Almost. Some old/buggy shells incorrectly allow the one-shot environment 
variable assignment to bleed past command invocation when the "command" 
is a shell function, like this:

     SOME_ENV_VAR=somevalue shell_function_call

We do "lint"[*] for that sort of problem in t/check-non-portable-shell.pl.

Stolee's example, however, is invoking a normal program (`git`, in this 
case), so isn't subject to that unwanted behavior from buggy shells.


[*]: a0a630192d (t/check-non-portable-shell: detect "FOO=bar 
shell_func", 2018-07-13)

  parent reply	other threads:[~2022-05-10 20:18 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-13 15:32 [PATCH 0/3] Updates to the safe.directory config option Derrick Stolee via GitGitGadget
2022-04-13 15:32 ` [PATCH 1/3] t0033: add tests for safe.directory Derrick Stolee via GitGitGadget
2022-04-13 16:24   ` Junio C Hamano
2022-04-13 16:29     ` Derrick Stolee
2022-04-13 19:16   ` Ævar Arnfjörð Bjarmason
2022-04-13 19:46     ` Junio C Hamano
2022-04-13 19:52     ` Derrick Stolee
2022-04-13 15:32 ` [PATCH 2/3] setup: fix safe.directory key not being checked Matheus Valadares via GitGitGadget
2022-04-13 16:34   ` Junio C Hamano
2022-04-13 15:32 ` [PATCH 3/3] setup: opt-out of check with safe.directory=* Derrick Stolee via GitGitGadget
2022-04-13 16:40   ` Junio C Hamano
2022-04-13 16:15 ` [PATCH 0/3] Updates to the safe.directory config option Junio C Hamano
2022-04-13 16:25   ` Derrick Stolee
2022-04-13 16:44     ` Junio C Hamano
2022-04-13 20:27       ` Junio C Hamano
2022-04-13 21:25         ` Taylor Blau
2022-04-13 21:45           ` Junio C Hamano
2022-04-27 17:06 ` [PATCH 0/3] t0033-safe-directory: test improvements and a documentation clarification SZEDER Gábor
2022-04-27 17:06   ` [PATCH 1/3] t0033-safe-directory: check the error message without matching the trash dir SZEDER Gábor
2022-05-09 22:27     ` Taylor Blau
2022-05-10  6:04     ` Carlo Marcelo Arenas Belón
2022-04-27 17:06   ` [PATCH 2/3] t0033-safe-directory: check when 'safe.directory' is ignored SZEDER Gábor
2022-04-27 20:37     ` Junio C Hamano
2022-04-29 16:12       ` Derrick Stolee
2022-04-29 17:57         ` Junio C Hamano
2022-04-29 19:06           ` SZEDER Gábor
2022-04-29 19:19             ` Derrick Stolee
2022-05-10 18:33               ` SZEDER Gábor
2022-05-10 19:55                 ` Taylor Blau
2022-05-10 20:06                   ` Carlo Marcelo Arenas Belón
2022-05-10 20:11                     ` Taylor Blau
2022-05-10 20:18                   ` Eric Sunshine [this message]
2022-04-27 17:06   ` [PATCH 3/3] safe.directory: document and check that it's ignored in the environment SZEDER Gábor
2022-04-27 20:42     ` Junio C Hamano
2022-04-27 20:49       ` Junio C Hamano
2022-04-29 16:13         ` Derrick Stolee
2022-05-09 21:39         ` SZEDER Gábor
2022-05-09 21:45           ` Junio C Hamano
2022-05-10 18:48             ` SZEDER Gábor

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