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From: Junio C Hamano <gitster@pobox.com>
To: Jakub Narebski <jnareb@gmail.com>
Cc: Denton Liu <liu.denton@gmail.com>,
	Git Mailing List <git@vger.kernel.org>
Subject: Re: [PATCH 16/16] t4124: let sed open its own files
Date: Mon, 30 Dec 2019 15:27:45 -0800	[thread overview]
Message-ID: <xmqqfth1fl72.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <868smt2zqh.fsf@gmail.com> (Jakub Narebski's message of "Mon, 30 Dec 2019 23:52:06 +0100")

Jakub Narebski <jnareb@gmail.com> writes:

> Denton Liu <liu.denton@gmail.com> writes:
>
>> In one case, we were using a redirection operator to feed input into
>> sed. However, since sed is capable of opening its own files, make sed
>> open its own files instead of redirecting input into it.
>
> Could you please write in the commit message what advantages does this
> change bring?

A fair question.

My version of short answer is "nothing---it is not wrong to write it
either way, and it is not worth the patch churn to rewrite it from
one form to the other, once the script is written".

If we were to extend these tests in such a way that the command
needs to read from more than one input file, though, dropping the
redirection like the patch does is a good first step toward that,
i.e. extending

	sed -e "expression" patch

to

	sed -e "expression" patch-1 patch-2 ...

would look more natural than starting from

	sed -e "expression" <patch

to end at the same place, so as a preliminary clean-up, a change
like this one may have value, but because there is no such further
updates planned, so...



  reply	other threads:[~2019-12-30 23:27 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-27 13:47 [PATCH 00/16] t: replace incorrect test_must_fail usage (part 2) Denton Liu
2019-12-27 13:47 ` [PATCH 01/16] t2018: remove trailing space from test description Denton Liu
2019-12-27 13:47 ` [PATCH 02/16] t2018: add space between function name and () Denton Liu
2019-12-27 21:03   ` Eric Sunshine
2019-12-27 13:47 ` [PATCH 03/16] t2018: use test_must_fail for failing git commands Denton Liu
2019-12-28  7:55   ` Eric Sunshine
2019-12-30 20:30   ` Jakub Narebski
2019-12-27 13:47 ` [PATCH 04/16] t2018: teach do_checkout() to accept `!` arg Denton Liu
2019-12-28  8:34   ` Eric Sunshine
2019-12-27 13:47 ` [PATCH 05/16] t2018: don't lose return code of git commands Denton Liu
2019-12-27 21:42   ` Eric Sunshine
2020-01-01  8:48     ` Denton Liu
2020-01-01  9:21       ` Eric Sunshine
2020-01-02 18:26       ` Junio C Hamano
2019-12-27 13:47 ` [PATCH 06/16] t2018: replace "sha" with "oid" Denton Liu
2019-12-27 13:47 ` [PATCH 07/16] t3030: use test_path_is_missing() Denton Liu
2019-12-27 13:47 ` [PATCH 08/16] t3310: extract common no_notes_merge_left() Denton Liu
2019-12-28  7:20   ` Eric Sunshine
2019-12-30 20:38     ` Jakub Narebski
2019-12-27 13:47 ` [PATCH 09/16] t3415: stop losing return codes of git commands Denton Liu
2019-12-27 13:47 ` [PATCH 10/16] t3415: increase granularity of test_auto_{fixup,squash}() Denton Liu
2019-12-27 13:47 ` [PATCH 11/16] t3419: stop losing return code of git command Denton Liu
2019-12-27 13:47 ` [PATCH 12/16] t3504: don't use `test_must_fail test_cmp` Denton Liu
2019-12-27 20:39   ` Johannes Sixt
2019-12-27 22:48     ` Junio C Hamano
2019-12-27 13:47 ` [PATCH 13/16] t3507: fix indentation Denton Liu
2019-12-27 13:47 ` [PATCH 14/16] t3507: use test_path_is_missing() Denton Liu
2019-12-27 13:47 ` [PATCH 15/16] t4124: only mark git command with test_must_fail Denton Liu
2019-12-27 13:47 ` [PATCH 16/16] t4124: let sed open its own files Denton Liu
2019-12-30 22:52   ` Jakub Narebski
2019-12-30 23:27     ` Junio C Hamano [this message]
2020-01-01  8:24       ` Denton Liu
2020-01-01  8:33         ` Eric Sunshine
2020-01-01  8:53           ` Denton Liu
2020-01-07  4:52 ` [PATCH v2 00/16] t: replace incorrect test_must_fail usage (part 2) Denton Liu
2020-01-07  4:52   ` [PATCH v2 01/16] t2018: remove trailing space from test description Denton Liu
2020-01-07  4:52   ` [PATCH v2 02/16] t2018: add space between function name and () Denton Liu
2020-01-07  4:53   ` [PATCH v2 03/16] t2018: improve style of if-statement Denton Liu
2020-01-07  4:53   ` [PATCH v2 04/16] t2018: use test_expect_code for failing git commands Denton Liu
2020-01-12 10:50     ` Eric Sunshine
2020-01-26 20:23     ` [PATCH v3] t2018: be more discerning when checking for expected exit codes Denton Liu
2020-01-07  4:53   ` [PATCH v2 05/16] t2018: teach do_checkout() to accept `!` arg Denton Liu
2020-01-07  4:53   ` [PATCH v2 06/16] t2018: don't lose return code of git commands Denton Liu
2020-01-07  4:53   ` [PATCH v2 07/16] t2018: replace "sha" with "oid" Denton Liu
2020-01-07  4:53   ` [PATCH v2 08/16] t3030: use test_path_is_missing() Denton Liu
2020-01-07  4:53   ` [PATCH v2 09/16] t3310: extract common notes_merge_files_gone() Denton Liu
2020-01-07  4:53   ` [PATCH v2 10/16] t3415: stop losing return codes of git commands Denton Liu
2020-01-07  4:53   ` [PATCH v2 11/16] t3415: increase granularity of test_auto_{fixup,squash}() Denton Liu
2020-01-07  4:53   ` [PATCH v2 12/16] t3419: stop losing return code of git command Denton Liu
2020-01-07  4:53   ` [PATCH v2 13/16] t3504: do check for conflict marker after failed cherry-pick Denton Liu
2020-01-07  4:53   ` [PATCH v2 14/16] t3507: fix indentation Denton Liu
2020-01-07  4:53   ` [PATCH v2 15/16] t3507: use test_path_is_missing() Denton Liu
2020-01-07  4:53   ` [PATCH v2 16/16] t4124: only mark git command with test_must_fail Denton Liu
2020-01-10 21:45   ` [PATCH v2 00/16] t: replace incorrect test_must_fail usage (part 2) Eric Sunshine

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