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From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: Felipe Contreras <felipe.contreras@gmail.com>
Cc: git@vger.kernel.org, "Jeff King" <peff@peff.net>,
	"Martin Ågren" <martin.agren@gmail.com>,
	"brian m . carlson" <sandals@crustytoothpaste.net>,
	"Junio C Hamano" <gitster@pobox.com>
Subject: Re: [PATCH 2/8] doc: add an asciidoc helper
Date: Thu, 13 May 2021 17:17:33 +0200	[thread overview]
Message-ID: <87bl9esls8.fsf@evledraar.gmail.com> (raw)
In-Reply-To: <20210512222803.508446-3-felipe.contreras@gmail.com>


On Wed, May 12 2021, Felipe Contreras wrote:

> The hacks to deal with interrupted builds is scattered throughout the
> Makefile, but not everywhere (it's not done for techical/ and articles).
>
> It originally comes from f9dae0d3e6 (Documentation/Makefile: fix
> interrupted builds of user-manual.xml, 2010-04-21), however, that
> description is not correct.
>
> asciidoc does actually remove the output file in case of an exception,
> but there was a bug that handled keyboard interruptions through a
> different path, and thus in that particular case the file is not
> removed[1].
>
> We shouldn't overly complicate the Makefile due to bugs in asciidoc.
>
> In order to keep the Makefile clean this commit creates an asciidoc
> wrapper that does the job of tracking the intermediary output.
>
> Once asciidoc is fixed this helper can be safely removed and there would
> be minimal changes elsewhere.
>
> It's written for bash, but could easily be modified for something more
> portable.

Both this and your first patch could just be made to use the
.DELETE_ON_ERROR flag instead, although that's a bigger change.

I had this and a related series for that recently:

https://lore.kernel.org/git/patch-4.6-2ff6359c273-20210329T161723Z-avarab@gmail.com/

I don't think anyone had an objection to using that, I didn't pursue it
because I was trying to make (among other things) AIX development less
annoying, but Junio didn't like the -o $@+ && mv $@+ $@ pattern for
object files, so I gave up on pursuing it.

But if you're trying to address this "maybe it errors" issue then
.DELETE_ON_ERROR is a better solution.

I think if we use that we should also undo your changes to use "-o file"
and instead pipe to the file ourselves, otherwise we'll probably have
cases where the program that fails and GNU make will race to delete the
file (but I haven't tested that case).

  reply	other threads:[~2021-05-13 15:20 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12 22:27 [PATCH 0/8] doc: asciidoc cleanups Felipe Contreras
2021-05-12 22:27 ` [PATCH 1/8] doc: standardize asciidoc calls Felipe Contreras
2021-05-12 22:27 ` [PATCH 2/8] doc: add an asciidoc helper Felipe Contreras
2021-05-13 15:17   ` Ævar Arnfjörð Bjarmason [this message]
2021-05-13 19:33     ` Felipe Contreras
2021-05-13 21:43     ` Junio C Hamano
2021-05-12 22:27 ` [PATCH 3/8] doc: disable asciidoc-helper for asciidoctor Felipe Contreras
2021-05-12 22:27 ` [PATCH 4/8] doc: simplify the handling of interruptions Felipe Contreras
2021-05-13  5:19   ` Junio C Hamano
2021-05-13  6:10     ` Felipe Contreras
2021-05-12 22:28 ` [PATCH 5/8] doc: remove redundant rm Felipe Contreras
2021-05-13 15:22   ` Ævar Arnfjörð Bjarmason
2021-05-13 18:58     ` Felipe Contreras
2021-05-12 22:28 ` [PATCH 6/8] doc: refactor common dependencies Felipe Contreras
2021-05-12 22:28 ` [PATCH 7/8] doc: improve asciidoc dependencies Felipe Contreras
2021-05-13 17:43   ` Martin Ågren
2021-05-12 22:28 ` [PATCH 8/8] doc: join xml and man rules Felipe Contreras
2021-05-13 11:02   ` Martin Ågren
2021-05-13 11:15     ` Felipe Contreras

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