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From: Junio C Hamano <gitster@pobox.com>
To: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Cc: git@vger.kernel.org, "René Scharfe" <l.s.r@web.de>,
	"Eric Sunshine" <sunshine@sunshineco.com>,
	"Torsten Bögershausen" <tboegi@web.de>
Subject: Re: [PATCH v4 3/6] tests: don't lose exit status with "(cd ...; test <op> $(git ...))"
Date: Tue, 20 Dec 2022 09:20:17 +0900	[thread overview]
Message-ID: <xmqqsfhb0vum.fsf@gitster.g> (raw)
In-Reply-To: <patch-v4-3.6-f5b2489609c-20221219T101240Z-avarab@gmail.com> ("Ævar Arnfjörð Bjarmason"'s message of "Mon, 19 Dec 2022 11:19:26 +0100")

Ævar Arnfjörð Bjarmason  <avarab@gmail.com> writes:

> -	test "a" = "$(cd repo && test-tool path-utils prefix_path prefix "$(pwd)/../repolink/a")"
> +	echo "a" >expect &&
> +	test-tool -C repo path-utils prefix_path prefix "$(cd repo && pwd)/../repolink/a" >actual &&

If we fail to cd to 'repo', "$(cd repo && pwd)/../repolink/a" would
silently expand to nonsense, but presumably "test-tool -C repo"
would fail loudly in such a case, so we should be OK here?

> @@ -28,9 +32,10 @@ test_expect_success 'preparing origin repository' '
>  
>  test_expect_success 'local clone without .git suffix' '
>  	git clone -l -s a b &&
> -	(cd b &&
> -	test "$(git config --bool core.bare)" = false &&
> -	git fetch)
> +	echo false >expect &&
> +	git -C b config --bool core.bare >actual &&
> +	test_cmp expect actual &&
> +	git -C b fetch
>  '

I am not sure if the above with full of "git -C" is strictly an
improvement over

	(
		cd b &&
		echo false >expect &&
		git config --bool core.bare >actual &&
		test_cmp expect actual &&
		git fetch
	)

and even if it were, the reason why it is better would be vastly
different from the reason why it is better that we no longer do
"test $(cmd) = false".  I very much hate the pattern described on
the commit title of this step (which by definition this patch fixes
many instances of).  I.e.

	(cd ...; test <op> $(git ...))

might be something you find that needs improvements, but "don't lose
exit status" ONLY applies to the "test <op> $(git ...)" part, and
the other half, i.e. (cd ...), has nothing to do with "don't lose
exit status" badness.

  reply	other threads:[~2022-12-20  0:20 UTC|newest]

Thread overview: 83+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-21  6:51 [PATCH 0/6] tests: fix ignored & hidden exit codes Ævar Arnfjörð Bjarmason
2022-07-21  6:51 ` [PATCH 1/6] diff tests: fix ignored exit codes in t4023 Ævar Arnfjörð Bjarmason
2022-07-21  6:51 ` [PATCH 2/6] t/lib-patch-mode.sh: fix ignored "git" exit codes Ævar Arnfjörð Bjarmason
2022-07-21  6:51 ` [PATCH 3/6] auto-crlf tests: check "git checkout" exit code Ævar Arnfjörð Bjarmason
2022-07-21  6:51 ` [PATCH 4/6] test-lib-functions: add and use test_cmp_cmd Ævar Arnfjörð Bjarmason
2022-07-21  6:51 ` [PATCH 5/6] merge tests: don't ignore "rev-parse" exit code in helper Ævar Arnfjörð Bjarmason
2022-07-21  6:51 ` [PATCH 6/6] log tests: don't use "exit 1" outside a sub-shell Ævar Arnfjörð Bjarmason
2022-12-02  0:06 ` [PATCH v2 0/8] tests: fix ignored & hidden exit codes Ævar Arnfjörð Bjarmason
2022-12-02  0:06   ` [PATCH v2 1/8] log tests: don't use "exit 1" outside a sub-shell Ævar Arnfjörð Bjarmason
2022-12-02  1:02     ` Eric Sunshine
2022-12-02  1:48       ` Junio C Hamano
2022-12-02  2:45         ` Ævar Arnfjörð Bjarmason
2022-12-02  9:03           ` Eric Sunshine
2022-12-02 10:02             ` Ævar Arnfjörð Bjarmason
2022-12-07  6:09               ` Eric Sunshine
2022-12-02  3:24       ` Junio C Hamano
2022-12-02  0:06   ` [PATCH v2 2/8] auto-crlf tests: check "git checkout" exit code Ævar Arnfjörð Bjarmason
2022-12-02  1:02     ` René Scharfe
2022-12-02  1:10       ` Eric Sunshine
2022-12-02  5:59       ` Torsten Bögershausen
2022-12-02  6:03         ` Eric Sunshine
2022-12-02  0:06   ` [PATCH v2 3/8] diff tests: fix ignored exit codes in t4023 Ævar Arnfjörð Bjarmason
2022-12-02  2:02     ` Junio C Hamano
2022-12-02  0:06   ` [PATCH v2 4/8] test-lib-functions: add and use test_cmp_cmd Ævar Arnfjörð Bjarmason
2022-12-02  1:30     ` René Scharfe
2022-12-02  1:33     ` Eric Sunshine
2022-12-02  1:45       ` Eric Sunshine
2022-12-02  1:52         ` Eric Sunshine
2022-12-02  3:41         ` Junio C Hamano
2022-12-02  0:06   ` [PATCH v2 5/8] t/lib-patch-mode.sh: fix ignored "git" exit codes Ævar Arnfjörð Bjarmason
2022-12-02  1:31     ` René Scharfe
2022-12-02  0:06   ` [PATCH v2 6/8] merge tests: don't ignore "rev-parse" exit code in helper Ævar Arnfjörð Bjarmason
2022-12-02  1:41     ` René Scharfe
2022-12-02  0:06   ` [PATCH v2 7/8] tests: use "test_cmp_cmd" instead of "test" in sub-shells Ævar Arnfjörð Bjarmason
2022-12-02  0:06   ` [PATCH v2 8/8] tests: use "test_cmp_cmd" in misc tests Ævar Arnfjörð Bjarmason
2022-12-02  2:19     ` Junio C Hamano
2022-12-02 11:52   ` [PATCH v3 0/8] tests: fix ignored & hidden exit codes Ævar Arnfjörð Bjarmason
2022-12-02 11:52     ` [PATCH v3 1/8] merge tests: don't ignore "rev-parse" exit code in helper Ævar Arnfjörð Bjarmason
2022-12-05  0:24       ` Junio C Hamano
2022-12-02 11:52     ` [PATCH v3 2/8] auto-crlf tests: don't lose exit code in loops and outside tests Ævar Arnfjörð Bjarmason
2022-12-02 15:59       ` René Scharfe
2022-12-02 11:52     ` [PATCH v3 3/8] diff tests: fix ignored exit codes in t4023 Ævar Arnfjörð Bjarmason
2022-12-05  0:26       ` Junio C Hamano
2022-12-02 11:52     ` [PATCH v3 4/8] t/lib-patch-mode.sh: fix ignored exit codes Ævar Arnfjörð Bjarmason
2022-12-02 15:59       ` René Scharfe
2022-12-04  0:45       ` Eric Sunshine
2022-12-02 11:52     ` [PATCH v3 5/8] tests: use "test_cmp" instead of "test" in sub-shells Ævar Arnfjörð Bjarmason
2022-12-05  0:39       ` Junio C Hamano
2022-12-02 11:52     ` [PATCH v3 6/8] tests: don't lose 'test <str> = $(cmd ...)"' exit code Ævar Arnfjörð Bjarmason
2022-12-02 11:52     ` [PATCH v3 7/8] tests: don't lose "git" exit codes in "! ( git ... | grep )" Ævar Arnfjörð Bjarmason
2022-12-02 18:31       ` René Scharfe
2022-12-02 11:52     ` [PATCH v3 8/8] tests: don't lose mist "git" exit codes Ævar Arnfjörð Bjarmason
2022-12-04  0:40       ` Eric Sunshine
2022-12-05  0:45         ` Junio C Hamano
2022-12-19 10:19     ` [PATCH v4 0/6] tests: fix ignored & hidden " Ævar Arnfjörð Bjarmason
2022-12-19 10:19       ` [PATCH v4 1/6] auto-crlf tests: don't lose exit code in loops and outside tests Ævar Arnfjörð Bjarmason
2022-12-19 12:07         ` René Scharfe
2022-12-19 10:19       ` [PATCH v4 2/6] t/lib-patch-mode.sh: fix ignored exit codes Ævar Arnfjörð Bjarmason
2022-12-20  0:09         ` Junio C Hamano
2022-12-27 16:40         ` Phillip Wood
2022-12-27 18:14           ` Ævar Arnfjörð Bjarmason
2022-12-19 10:19       ` [PATCH v4 3/6] tests: don't lose exit status with "(cd ...; test <op> $(git ...))" Ævar Arnfjörð Bjarmason
2022-12-20  0:20         ` Junio C Hamano [this message]
2022-12-19 10:19       ` [PATCH v4 4/6] tests: don't lose exit status with "test <op> $(git ...)" Ævar Arnfjörð Bjarmason
2022-12-26  1:14         ` Junio C Hamano
2022-12-19 10:19       ` [PATCH v4 5/6] tests: don't lose "git" exit codes in "! ( git ... | grep )" Ævar Arnfjörð Bjarmason
2022-12-26  1:18         ` Junio C Hamano
2022-12-27 16:44         ` Phillip Wood
2022-12-27 17:13           ` Phillip Wood
2022-12-27 23:16           ` Junio C Hamano
2022-12-19 10:19       ` [PATCH v4 6/6] tests: don't lose misc "git" exit codes Ævar Arnfjörð Bjarmason
2022-12-27 16:46         ` Phillip Wood
2022-12-27 18:18           ` Ævar Arnfjörð Bjarmason
2022-12-27 23:17           ` Junio C Hamano
2022-12-20  0:06       ` [PATCH v4 0/6] tests: fix ignored & hidden " Junio C Hamano
2023-02-06 22:44       ` [PATCH v5 " Ævar Arnfjörð Bjarmason
2023-02-06 22:44         ` [PATCH v5 1/6] auto-crlf tests: don't lose exit code in loops and outside tests Ævar Arnfjörð Bjarmason
2023-02-06 22:44         ` [PATCH v5 2/6] t/lib-patch-mode.sh: fix ignored exit codes Ævar Arnfjörð Bjarmason
2023-02-06 22:44         ` [PATCH v5 3/6] tests: don't lose exit status with "(cd ...; test <op> $(git ...))" Ævar Arnfjörð Bjarmason
2023-02-06 22:44         ` [PATCH v5 4/6] tests: don't lose exit status with "test <op> $(git ...)" Ævar Arnfjörð Bjarmason
2023-02-06 22:44         ` [PATCH v5 5/6] tests: don't lose "git" exit codes in "! ( git ... | grep )" Ævar Arnfjörð Bjarmason
2023-02-06 22:44         ` [PATCH v5 6/6] tests: don't lose misc "git" exit codes Ævar Arnfjörð Bjarmason
2023-02-06 23:33         ` [PATCH v5 0/6] tests: fix ignored & hidden " Junio C Hamano

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