From: Jeff King <peff@peff.net>
To: "Randall S. Becker" <rsbecker@nexbridge.com>
Cc: 'Junio C Hamano' <gitster@pobox.com>,
git@vger.kernel.org,
'Linux Kernel' <linux-kernel@vger.kernel.org>,
git-packagers@googlegroups.com
Subject: Re: [Breakage] Git v2.21.0-rc0 - t5318 (NonStop)
Date: Fri, 8 Feb 2019 14:15:19 -0500 [thread overview]
Message-ID: <20190208191519.GF27673@sigill.intra.peff.net> (raw)
In-Reply-To: <002501d4bfde$b26e6050$174b20f0$@nexbridge.com>
On Fri, Feb 08, 2019 at 01:47:04PM -0500, Randall S. Becker wrote:
> > Though I suspect we may be able to just find a solution that works
> > everywhere, without having two different implementations. If we know we
> > need $count bytes for dd, we could probably just generate a file with that
> > many NULs in it.
>
> For this, we could use truncate -s count file instead of dd to get a
> fixed size file of nulls. This would remove the need for /dev/zero in
> t5318 (the patch below probably will wrap badly in my mailer so I can
> submit a real patch separately.
I don't think "truncate" is portable, though.
> > Other cases don't seem to actually care that they're getting NULs, and are
> > just redirecting stdin from /dev/zero to get an infinite amount of input. They
> > could probably use "yes" for that.
>
> What about reading from /dev/null?
That would yield zero bytes, not an infinite number of them.
-Peff
next prev parent reply other threads:[~2019-02-08 19:15 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-08 11:08 [Breakage] Git v2.21.0-rc0 - t5318 (NonStop) Randall S. Becker
2019-02-08 16:50 ` Jeff King
2019-02-08 17:49 ` Randall S. Becker
2019-02-08 18:03 ` Jeff King
2019-02-08 18:29 ` Johannes Sixt
2019-02-08 19:31 ` Junio C Hamano
2019-02-08 18:47 ` Randall S. Becker
2019-02-08 19:15 ` Jeff King [this message]
2019-02-08 19:26 ` Randall S. Becker
2019-02-08 19:31 ` Jeff King
2019-02-08 20:38 ` Randall S. Becker
2019-02-08 22:07 ` brian m. carlson
2019-02-08 22:12 ` Randall S. Becker
2019-02-08 22:18 ` brian m. carlson
2019-02-08 22:36 ` Randall S. Becker
2019-02-08 22:35 ` Jeff King
2019-02-08 22:53 ` Randall S. Becker
2019-02-09 4:24 ` Jeff King
2019-02-09 8:39 ` Johannes Sixt
2019-02-09 16:55 ` Randall S. Becker
2019-02-09 23:29 ` Jeff King
2019-02-10 9:40 ` Johannes Sixt
2019-02-09 16:53 ` Randall S. Becker
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