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From: Eric Sunshine <sunshine@sunshineco.com>
To: Jeff King <peff@peff.net>
Cc: "Eric Wong" <e@80x24.org>,
	"Eric Sunshine via GitGitGadget" <gitgitgadget@gmail.com>,
	"Git List" <git@vger.kernel.org>,
	"Elijah Newren" <newren@gmail.com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	"Fabian Stelzer" <fs@gigacodes.de>,
	"Johannes Schindelin" <Johannes.Schindelin@gmx.de>
Subject: Re: [PATCH 06/18] chainlint.pl: validate test scripts in parallel
Date: Mon, 21 Nov 2022 13:47:42 -0500	[thread overview]
Message-ID: <CAPig+cQfkkY2Eh=QD47QoUGuAiCEpxSsX24x_8ts2GTKVnV1aw@mail.gmail.com> (raw)
In-Reply-To: <Y3u9ul1cu+L5d5IZ@coredump.intra.peff.net>

On Mon, Nov 21, 2022 at 1:04 PM Jeff King <peff@peff.net> wrote:
> On Sun, Nov 20, 2022 at 11:02:54PM -0500, Eric Sunshine wrote:
> > Overall, I think Ævar's plan to parallelize linting via "make" is
> > probably the way to go.
>
> TBH, I think just running the linter once per test script when the
> script is run would be sufficient. That is one extra process per script,
> but they are already shell scripts running a bunch of processes. You get
> parallelism for free because you're already running the tests in
> parallel. You lose out on "don't bother linting because the file hasn't
> changed", but I'm not sure that's really worth the extra complexity
> overall.

Hmm, yes, that's appealing (especially since I've essentially given up
on making linting fast on Windows), and it wouldn't be hard to
implement. In fact, it's already implemented by 23a14f3016 (test-lib:
replace chainlint.sed with chainlint.pl, 2022-09-01); making it work
the way you describe would just involve dropping 69b9924b87
(t/Makefile: teach `make test` and `make prove` to run chainlint.pl,
2022-09-01) and 29fb2ec384 (chainlint.pl: validate test scripts in
parallel, 2022-09-01).

I think Ævar's use-case for `make` parallelization was to speed up
git-bisect runs. But thinking about it now, the likelihood of "lint"
problems cropping up during a git-bisect run is effectively nil, in
which case setting GIT_TEST_CHAIN_LINT=1 should be a perfectly
appropriate way to take linting out of the equation when bisecting.

  reply	other threads:[~2022-11-21 18:48 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-01  0:29 [PATCH 00/18] make test "linting" more comprehensive Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 01/18] t: add skeleton chainlint.pl Eric Sunshine via GitGitGadget
2022-09-01 12:27   ` Ævar Arnfjörð Bjarmason
2022-09-02 18:53     ` Eric Sunshine
2022-09-01  0:29 ` [PATCH 02/18] chainlint.pl: add POSIX shell lexical analyzer Eric Sunshine via GitGitGadget
2022-09-01 12:32   ` Ævar Arnfjörð Bjarmason
2022-09-03  6:00     ` Eric Sunshine
2022-09-01  0:29 ` [PATCH 03/18] chainlint.pl: add POSIX shell parser Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 04/18] chainlint.pl: add parser to validate tests Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 05/18] chainlint.pl: add parser to identify test definitions Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 06/18] chainlint.pl: validate test scripts in parallel Eric Sunshine via GitGitGadget
2022-09-01 12:36   ` Ævar Arnfjörð Bjarmason
2022-09-03  7:51     ` Eric Sunshine
2022-09-06 22:35   ` Eric Wong
2022-09-06 22:52     ` Eric Sunshine
2022-09-06 23:26       ` Jeff King
2022-11-21  4:02         ` Eric Sunshine
2022-11-21 13:28           ` Ævar Arnfjörð Bjarmason
2022-11-21 14:07             ` Eric Sunshine
2022-11-21 14:18               ` Ævar Arnfjörð Bjarmason
2022-11-21 14:48                 ` Eric Sunshine
2022-11-21 18:04           ` Jeff King
2022-11-21 18:47             ` Eric Sunshine [this message]
2022-11-21 18:50               ` Eric Sunshine
2022-11-21 18:52               ` Jeff King
2022-11-21 19:00                 ` Eric Sunshine
2022-11-21 19:28                   ` Jeff King
2022-11-22  0:11                   ` Ævar Arnfjörð Bjarmason
2022-09-01  0:29 ` [PATCH 07/18] chainlint.pl: don't require `return|exit|continue` to end with `&&` Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 08/18] t/Makefile: apply chainlint.pl to existing self-tests Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 09/18] chainlint.pl: don't require `&` background command to end with `&&` Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 10/18] chainlint.pl: don't flag broken &&-chain if `$?` handled explicitly Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 11/18] chainlint.pl: don't flag broken &&-chain if failure indicated explicitly Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 12/18] chainlint.pl: complain about loops lacking explicit failure handling Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 13/18] chainlint.pl: allow `|| echo` to signal failure upstream of a pipe Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 14/18] t/chainlint: add more chainlint.pl self-tests Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 15/18] test-lib: retire "lint harder" optimization hack Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 16/18] test-lib: replace chainlint.sed with chainlint.pl Eric Sunshine via GitGitGadget
2022-09-03  5:07   ` Elijah Newren
2022-09-03  5:24     ` Eric Sunshine
2022-09-01  0:29 ` [PATCH 17/18] t/Makefile: teach `make test` and `make prove` to run chainlint.pl Eric Sunshine via GitGitGadget
2022-09-01  0:29 ` [PATCH 18/18] t: retire unused chainlint.sed Eric Sunshine via GitGitGadget
2022-09-02 12:42   ` several messages Johannes Schindelin
2022-09-02 18:16     ` Eric Sunshine
2022-09-02 18:34       ` Jeff King
2022-09-02 18:44         ` Junio C Hamano
2022-09-11  5:28 ` [PATCH 00/18] make test "linting" more comprehensive Jeff King
2022-09-11  7:01   ` Eric Sunshine
2022-09-11 18:31     ` Jeff King
2022-09-12 23:17       ` Eric Sunshine
2022-09-13  0:04         ` Jeff King

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