From: "SZEDER Gábor" <szeder.dev@gmail•com>
To: Junio C Hamano <gitster@pobox•com>
Cc: "brian m. carlson" <sandals@crustytoothpaste•net>,
Derrick Stolee via GitGitGadget <gitgitgadget@gmail•com>,
git@vger•kernel.org, vdye@github•com, avarab@gmail•com,
newren@gmail•com, Derrick Stolee <derrickstolee@github•com>
Subject: Re: [PATCH v2 3/4] test-lib-functions: add helper for trailing hash
Date: Sat, 17 Dec 2022 18:37:58 +0100 [thread overview]
Message-ID: <20221217173758.GB3411@szeder.dev> (raw)
In-Reply-To: <xmqqh6y0qfzg.fsf@gitster.g>
On Tue, Dec 13, 2022 at 09:55:47AM +0900, Junio C Hamano wrote:
> SZEDER Gábor <szeder.dev@gmail•com> writes:
>
> >> + test_trailing_hash .git/index >hash &&
> >> + echo $(test_oid zero) >expect &&
> >
> > Nit: test_oid zero >expect
> >
> >> + test_cmp expect hash &&
>
> Unfortunately they are not equivalent.
>
> Usually we write these helpers to terminate their output with LF,
> relying on the fact that terminating LF will be dropped when used in
> a command substition, e.g. VAR=$(HELPER), but test_oid deviates from
> the pattern and does not give the terminating LF to its output.
Oh, indeed. But why does it omit the trailing LF?! Alas, 2c02b110da
(t: add test functions to translate hash-related values, 2018-09-13)
doesn't seem to mention anything about it. However, skimming through
the output of
git grep 'test_oid ' -- ':/t/*.sh'
it appears that all but three uses of 'test_oid' are in command
substitutions, and those three exceptions are in t0000 checking that
'test_oid' actually works. So I don't see any benefit of omitting
that trailing LF, but this and similar cases show its drawbacks.
$ git grep 'echo $(test_oid ' -- ':/t/*.sh'
t/t1302-repo-version.sh: echo $(test_oid version) >expect &&
t/t5313-pack-bounds-checks.sh: echo $(test_oid oidfff) >file &&
next prev parent reply other threads:[~2022-12-17 17:38 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-07 17:25 [PATCH 0/4] Optionally skip hashing index on write Derrick Stolee via GitGitGadget
2022-12-07 17:25 ` [PATCH 1/4] hashfile: allow skipping the hash function Derrick Stolee via GitGitGadget
2022-12-07 22:13 ` Ævar Arnfjörð Bjarmason
2022-12-08 7:32 ` Jeff King
2022-12-07 17:25 ` [PATCH 2/4] read-cache: add index.skipHash config option Derrick Stolee via GitGitGadget
2022-12-07 18:59 ` Eric Sunshine
2022-12-12 13:59 ` Derrick Stolee
2022-12-12 18:55 ` Eric Sunshine
2022-12-07 22:25 ` Ævar Arnfjörð Bjarmason
2022-12-07 23:06 ` Ævar Arnfjörð Bjarmason
2022-12-08 0:05 ` Junio C Hamano
2022-12-12 14:05 ` Derrick Stolee
2022-12-12 18:01 ` Ævar Arnfjörð Bjarmason
2022-12-07 17:25 ` [PATCH 3/4] test-lib-functions: add helper for trailing hash Derrick Stolee via GitGitGadget
2022-12-07 22:27 ` Ævar Arnfjörð Bjarmason
2022-12-12 14:10 ` Derrick Stolee
2022-12-07 17:25 ` [PATCH 4/4] features: feature.manyFiles implies fast index writes Derrick Stolee via GitGitGadget
2022-12-07 22:30 ` Ævar Arnfjörð Bjarmason
2022-12-12 14:18 ` Derrick Stolee
2022-12-12 18:27 ` Ævar Arnfjörð Bjarmason
2022-12-07 23:27 ` [PATCH 0/4] Optionally skip hashing index on write Junio C Hamano
2022-12-07 23:42 ` Ævar Arnfjörð Bjarmason
2022-12-08 16:38 ` Derrick Stolee
2022-12-12 22:22 ` Jacob Keller
2022-12-12 16:31 ` [PATCH v2 " Derrick Stolee via GitGitGadget
2022-12-12 16:31 ` [PATCH v2 1/4] hashfile: allow skipping the hash function Derrick Stolee via GitGitGadget
2022-12-12 16:31 ` [PATCH v2 2/4] read-cache: add index.skipHash config option Derrick Stolee via GitGitGadget
2022-12-12 16:31 ` [PATCH v2 3/4] test-lib-functions: add helper for trailing hash Derrick Stolee via GitGitGadget
2022-12-12 18:14 ` SZEDER Gábor
2022-12-13 0:55 ` Junio C Hamano
2022-12-17 17:37 ` SZEDER Gábor [this message]
2022-12-12 16:31 ` [PATCH v2 4/4] features: feature.manyFiles implies fast index writes Derrick Stolee via GitGitGadget
2022-12-15 15:06 ` [PATCH v3 0/4] Optionally skip hashing index on write Derrick Stolee via GitGitGadget
2022-12-15 15:06 ` [PATCH v3 1/4] hashfile: allow skipping the hash function Derrick Stolee via GitGitGadget
2022-12-15 15:06 ` [PATCH v3 2/4] read-cache: add index.skipHash config option Derrick Stolee via GitGitGadget
2022-12-15 16:12 ` Ævar Arnfjörð Bjarmason
2022-12-15 15:06 ` [PATCH v3 3/4] test-lib-functions: add helper for trailing hash Derrick Stolee via GitGitGadget
2022-12-15 15:07 ` [PATCH v3 4/4] features: feature.manyFiles implies fast index writes Derrick Stolee via GitGitGadget
2022-12-15 15:56 ` [PATCH v3 0/4] Optionally skip hashing index on write Ævar Arnfjörð Bjarmason
2022-12-16 13:41 ` Derrick Stolee
2022-12-16 15:31 ` [PATCH v4 " Derrick Stolee via GitGitGadget
2022-12-16 15:31 ` [PATCH v4 1/4] hashfile: allow skipping the hash function Derrick Stolee via GitGitGadget
2022-12-16 15:31 ` [PATCH v4 2/4] read-cache: add index.skipHash config option Derrick Stolee via GitGitGadget
2022-12-16 15:31 ` [PATCH v4 3/4] test-lib-functions: add helper for trailing hash Derrick Stolee via GitGitGadget
2022-12-16 15:31 ` [PATCH v4 4/4] features: feature.manyFiles implies fast index writes Derrick Stolee via GitGitGadget
2022-12-16 15:43 ` [PATCH v4 0/4] Optionally skip hashing index on write Ævar Arnfjörð Bjarmason
2023-01-06 15:33 ` Derrick Stolee
2023-01-06 22:45 ` Junio C Hamano
2023-01-06 23:40 ` Derrick Stolee
2023-01-09 17:15 ` Ævar Arnfjörð Bjarmason
2023-01-09 18:00 ` Derrick Stolee
2023-01-09 19:22 ` Ævar Arnfjörð Bjarmason
2023-01-06 16:31 ` [PATCH v5 " Derrick Stolee via GitGitGadget
2023-01-06 16:31 ` [PATCH v5 1/4] hashfile: allow skipping the hash function Derrick Stolee via GitGitGadget
2023-01-06 16:31 ` [PATCH v5 2/4] read-cache: add index.skipHash config option Derrick Stolee via GitGitGadget
2023-01-06 16:31 ` [PATCH v5 3/4] test-lib-functions: add helper for trailing hash Derrick Stolee via GitGitGadget
2023-01-06 16:31 ` [PATCH v5 4/4] features: feature.manyFiles implies fast index writes Derrick Stolee via GitGitGadget
2023-01-15 9:31 ` [PATCH v5 0/4] Optionally skip hashing index on write Junio C Hamano
2023-01-17 14:49 ` Derrick Stolee
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