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From: Matheus Tavares Bernardino <matheus.bernardino@usp.br>
To: Derrick Stolee <stolee@gmail.com>
Cc: git <git@vger.kernel.org>,
	Christian Couder <christian.couder@gmail.com>,
	Jeff Hostetler <git@jeffhostetler.com>
Subject: Re: [PATCH 3/7] checkout-index: add parallel checkout support
Date: Mon, 26 Apr 2021 19:30:44 -0300	[thread overview]
Message-ID: <CAHd-oW547EXAg6bCFx84pKX0j_8Ry2RraYxVscNbK17+0ObkRA@mail.gmail.com> (raw)
In-Reply-To: <36615f6a-ce58-3737-8c1d-fa1253a85439@gmail.com>

On Fri, Apr 23, 2021 at 3:32 PM Derrick Stolee <stolee@gmail.com> wrote:
>
> On 4/22/2021 11:17 AM, Matheus Tavares wrote:
> > @@ -142,11 +143,7 @@ static void checkout_all(const char *prefix, int prefix_length)
> >       }
> >       if (last_ce && to_tempfile)
> >               write_tempfile_record(last_ce->name, prefix);
> > -     if (errs)
> > -             /* we have already done our error reporting.
> > -              * exit with the same code as die().
> > -              */
> > -             exit(128);
>
> Here, it makes note of returning 128 as if it were a die(), but
>
> > +     if (all)
> > +             err |= checkout_all(prefix, prefix_length);
> > +
> > +     if (pc_workers > 1)
> > +             err |= run_parallel_checkout(&state, pc_workers, pc_threshold,
> > +                                          NULL, NULL);
> > +
> >       if (err)
> >               return 1;
>
> This returns 1 instead. Should we `return err` and use an error
> code specific to the response? I imagine there are other reasons
> that could cause a non-zero return for checkout_all() and
> run_parallel_checkout().

Hmm, I think checkout_entry() returns -1 for any kind of error, and
checkout_all()'s `err` only holds the number of checkout_entry()'s
failures. run_parallel_checkout() also always use -1 for errors.

> I suppose: is there a value in persisting the 128 response code
> here, or is an exit of 1 sufficient? There is no documentation
> about the exit code, so any dependence on 128 is not based on a
> "written promise" but I thought it was worth mentioning.

Yeah, I also wondered if we should keep the 128 exit code here... But
I couldn't see much value in doing so, unless there are scripts
actually expecting 128. But I guess this is unlikely, right?

The additional bonus of unifying the exit path for `git checkout-index
--all` and `git checkout-index <path>` is that the code flow becomes a
little easier to read, especially now that they both need to
[conditionally] call run_parallel_checkout() before exiting.

  reply	other threads:[~2021-04-26 22:31 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-22 15:17 [PATCH 0/7] Parallel Checkout (part 3) Matheus Tavares
2021-04-22 15:17 ` [PATCH 1/7] make_transient_cache_entry(): optionally alloc from mem_pool Matheus Tavares
2021-04-22 15:17 ` [PATCH 2/7] builtin/checkout.c: complete parallel checkout support Matheus Tavares
2021-04-23 16:19   ` Derrick Stolee
2021-04-26 21:54     ` Matheus Tavares Bernardino
2021-04-22 15:17 ` [PATCH 3/7] checkout-index: add " Matheus Tavares
2021-04-23 18:32   ` Derrick Stolee
2021-04-26 22:30     ` Matheus Tavares Bernardino [this message]
2021-04-22 15:17 ` [PATCH 4/7] parallel-checkout: add tests for basic operations Matheus Tavares
2021-04-23 19:18   ` Derrick Stolee
2021-04-27  2:30     ` Matheus Tavares Bernardino
2021-04-22 15:17 ` [PATCH 5/7] parallel-checkout: add tests related to path collisions Matheus Tavares
2021-04-22 15:17 ` [PATCH 6/7] parallel-checkout: add tests related to .gitattributes Matheus Tavares
2021-04-23 19:48   ` Derrick Stolee
2021-04-22 15:17 ` [PATCH 7/7] ci: run test round with parallel-checkout enabled Matheus Tavares
2021-04-23 19:56   ` Derrick Stolee
2021-04-30 21:40 ` [PATCH v2 0/8] Parallel Checkout (part 3) Matheus Tavares
2021-04-30 21:40   ` [PATCH v2 1/8] make_transient_cache_entry(): optionally alloc from mem_pool Matheus Tavares
2021-05-01 17:06     ` Christian Couder
2021-05-03 14:11       ` Matheus Tavares Bernardino
2021-04-30 21:40   ` [PATCH v2 2/8] builtin/checkout.c: complete parallel checkout support Matheus Tavares
2021-05-01 17:08     ` Christian Couder
2021-05-03 14:21       ` Matheus Tavares Bernardino
2021-04-30 21:40   ` [PATCH v2 3/8] checkout-index: add " Matheus Tavares
2021-05-01 17:08     ` Christian Couder
2021-05-03 14:22       ` Matheus Tavares Bernardino
2021-04-30 21:40   ` [PATCH v2 4/8] parallel-checkout: add tests for basic operations Matheus Tavares
2021-04-30 21:40   ` [PATCH v2 5/8] parallel-checkout: add tests related to path collisions Matheus Tavares
2021-05-02  7:59     ` Torsten Bögershausen
2021-05-03 14:58       ` Matheus Tavares Bernardino
2021-04-30 21:40   ` [PATCH v2 6/8] t0028: extract encoding helpers to lib-encoding.sh Matheus Tavares
2021-04-30 21:40   ` [PATCH v2 7/8] parallel-checkout: add tests related to .gitattributes Matheus Tavares
2021-04-30 21:40   ` [PATCH v2 8/8] ci: run test round with parallel-checkout enabled Matheus Tavares
2021-05-02 10:12   ` [PATCH v2 0/8] Parallel Checkout (part 3) Torsten Bögershausen
2021-05-03 15:01     ` Matheus Tavares Bernardino
2021-05-04 16:27   ` [PATCH v3 " Matheus Tavares
2021-05-04 16:27     ` [PATCH v3 1/8] make_transient_cache_entry(): optionally alloc from mem_pool Matheus Tavares
2021-05-04 16:27     ` [PATCH v3 2/8] builtin/checkout.c: complete parallel checkout support Matheus Tavares
2021-05-05 13:55       ` Derrick Stolee
2021-05-04 16:27     ` [PATCH v3 3/8] checkout-index: add " Matheus Tavares
2021-05-04 16:27     ` [PATCH v3 4/8] parallel-checkout: add tests for basic operations Matheus Tavares
2021-05-26 18:36       ` AIX failures on parallel checkout (new in v2.32.0-rc*) Ævar Arnfjörð Bjarmason
2021-05-26 22:01         ` Matheus Tavares Bernardino
2021-05-26 23:00           ` Junio C Hamano
2021-05-04 16:27     ` [PATCH v3 5/8] parallel-checkout: add tests related to path collisions Matheus Tavares
2021-05-04 16:27     ` [PATCH v3 6/8] t0028: extract encoding helpers to lib-encoding.sh Matheus Tavares
2021-05-04 16:27     ` [PATCH v3 7/8] parallel-checkout: add tests related to .gitattributes Matheus Tavares
2021-05-04 16:27     ` [PATCH v3 8/8] ci: run test round with parallel-checkout enabled Matheus Tavares
2021-05-05 13:57     ` [PATCH v3 0/8] Parallel Checkout (part 3) Derrick Stolee
2021-05-06  0:40       ` Junio C Hamano

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