From: Jeff King <peff@peff.net>
To: demerphq <demerphq@gmail.com>
Cc: "Eric Wong" <e@80x24.org>, "Jonathan Nieder" <jrnieder@gmail.com>,
"Randall S. Becker" <rsbecker@nexbridge.com>,
Git <git@vger.kernel.org>,
"Joachim Schmitz" <jojo@schmitz-digital.de>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: Re: [Problem] test_must_fail makes possibly questionable assumptions about exit_code.
Date: Thu, 1 Mar 2018 02:34:58 -0500 [thread overview]
Message-ID: <20180301073458.GB31079@sigill.intra.peff.net> (raw)
In-Reply-To: <CANgJU+V3fmhdsD8Q2NgV+RF3dbRdASV-Qwbp-agGjm6Y-PUCEw@mail.gmail.com>
On Wed, Feb 28, 2018 at 05:46:22PM +0100, demerphq wrote:
> > You're right. I cut down my example too much and dropped the necessary
> > eval magic. Try this:
> >
> > -- >8 --
> > SIG{__DIE__} = sub {
> > CORE::die @_ if $^S || !defined($^S);
> > print STDERR "fatal: @_";
> > exit 128;
> > };
>
> FWIW, this doesn't need to use CORE::die like that unless you have
> code that overrides die() or CORE::GLOBAL::die, which would be pretty
> unusual.
>
> die() within $SIG{__DIE__} is special cased not to trigger $SIG{__DIE__} again.
>
> Of course it doesn't hurt, but it might make a perl hacker do a double
> take why you are doing it. Maybe add a comment like
>
> # using CORE::die to armor against overridden die()
Thanks, I agree it should just be "die". I pulled this from an old
error-handling pattern I used in some of my scripts (which _does_
override die). I screwed it up when cutting it down the first time, but
then I didn't cut enough the second. :)
-Peff
prev parent reply other threads:[~2018-03-01 7:35 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-27 23:50 [Problem] test_must_fail makes possibly questionable assumptions about exit_code Randall S. Becker
2018-02-28 0:16 ` Jonathan Nieder
2018-02-28 4:07 ` Eric Wong
2018-02-28 5:00 ` Jeff King
2018-02-28 7:42 ` Eric Wong
2018-02-28 7:49 ` Jeff King
2018-02-28 14:55 ` Randall S. Becker
2018-02-28 16:51 ` demerphq
2018-03-01 7:36 ` Jeff King
2018-03-01 8:16 ` demerphq
2018-03-01 14:28 ` Randall S. Becker
2018-03-01 15:08 ` Jeff King
2018-03-01 15:30 ` demerphq
2018-02-28 16:22 ` Junio C Hamano
2018-02-28 16:46 ` demerphq
2018-02-28 17:10 ` Randall S. Becker
2018-02-28 17:19 ` demerphq
2018-02-28 17:20 ` demerphq
2018-02-28 17:32 ` Randall S. Becker
2018-02-28 17:44 ` Jonathan Nieder
2018-02-28 18:21 ` Randall S. Becker
2018-02-28 18:51 ` Jonathan Nieder
2018-02-28 20:04 ` Randall S. Becker
2018-02-28 22:02 ` Randall S. Becker
2018-02-28 23:16 ` Jonathan Nieder
2018-03-01 7:34 ` Jeff King [this message]
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