From: Vin Shelton <acs@alumni.princeton.edu>
To: Daniel Shahaf <d.s@daniel.shahaf.name>
Cc: Peter Stephenson <p.stephenson@samsung.com>,
Martin Tournoij <martin@arp242.net>,
"zsh-workers@zsh.org" <zsh-workers@zsh.org>
Subject: Re: Any way to allow clobbering empty files when noclobber is set?
Date: Thu, 4 Jun 2020 07:57:18 -0400 [thread overview]
Message-ID: <CACeGjnV=4DZ0hzf9vi-H6A_AWePBiu5R-+jxm8nywFOF1nDgrQ@mail.gmail.com> (raw)
In-Reply-To: <20200604023650.6093bda4@tarpaulin.shahaf.local2>
[-- Attachment #1: Type: text/plain, Size: 1848 bytes --]
IMO, there is little to no reason to complexify the code and add to the
users' cognitive burden by adding a new option. That written, NO_CLOBBER
is a feature I don't use, so I'll contentedly end my part of this
conversation now.
- Vin
On Wed, Jun 3, 2020 at 10:36 PM Daniel Shahaf <d.s@daniel.shahaf.name>
wrote:
> Vin Shelton wrote on Wed, 03 Jun 2020 22:13 -0400:
> > What is the significance of a 0-length file as opposed to a file with
> > contents?
>
> There _are_ some cases where a 0-length file is treated differently to
> a non-existing one:
>
> - .vimrc
> - «cat foo» (also #include's in C)
> - GNU make(1)'s lookup order: GNUmakefile / Makefile / makefile
> - /etc/nologin
>
> > If we want to support this feature, why don't we change the meaning of
> > NO_CLOBBER to mean only non-empty files?
>
> Because users might be relying on the semantics that the documentation
> promises.
>
> For example, a user who does «echo foo > /etc/nologin» and doesn't get
> an error may infer that it's fine to delete the file once they finish
> whatever change they're working on. Keeping the error would alert that
> user that they shouldn't remove the file when they're done (and, most
> likely, should pause to coordinate with whoever created /etc/nologin
> before them).
>
> Cheers,
>
> Daniel
>
>
> > - Vin
> >
> > On Wed, Jun 3, 2020 at 8:05 AM Peter Stephenson <
> p.stephenson@samsung.com>
> > wrote:
> >
> > > Martin Tournoij wrote:
> > > > I switched from tcsh to zsh a while ago (many years too late, I
> know),
> > > > and found zsh can do pretty much everything better. There's one thing
> > > > I rather miss though: the 'notempty' option in 'noclobber'.
> > >
> > > This isn't actually hard to implement. What does everyone else think?
> > >
> > > pws
> > >
>
>
next prev parent reply other threads:[~2020-06-04 11:58 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200603020919eucas1p13e26ebcbb335784d14bfb97b137f385a@eucas1p1.samsung.com>
2020-06-03 2:08 ` Martin Tournoij
2020-06-03 12:04 ` Peter Stephenson
2020-06-04 1:48 ` Daniel Shahaf
2020-06-04 2:43 ` Bart Schaefer
2020-06-04 4:06 ` Daniel Shahaf
2020-06-04 5:00 ` Bart Schaefer
2020-06-05 3:10 ` Daniel Shahaf
2020-06-05 3:18 ` Daniel Shahaf
2020-06-06 1:07 ` Bart Schaefer
2020-06-06 4:48 ` Daniel Shahaf
2020-06-06 7:04 ` Bart Schaefer
2020-06-04 6:31 ` Martin Tournoij
2020-06-05 2:22 ` Daniel Shahaf
2020-06-04 2:13 ` Vin Shelton
2020-06-04 2:35 ` Bart Schaefer
2020-06-04 2:36 ` Daniel Shahaf
2020-06-04 11:57 ` Vin Shelton [this message]
2020-06-04 5:06 ` Bart Schaefer
2020-06-04 5:41 ` Roman Perepelitsa
2020-06-05 2:07 ` Daniel Shahaf
2020-06-05 4:38 ` Roman Perepelitsa
2020-06-06 1:41 ` Bart Schaefer
2020-06-06 4:55 ` Daniel Shahaf
2020-06-06 6:25 ` Roman Perepelitsa
2020-06-06 7:08 ` Bart Schaefer
2020-06-06 8:03 ` Daniel Shahaf
[not found] ` <1941572212.466119.1591360860372@mail2.virginmedia.com>
[not found] ` <e7f7dfe2-eb4a-457b-85fb-091935a74c0e@www.fastmail.com>
2020-06-06 11:57 ` Peter Stephenson
2020-06-06 12:48 ` Roman Perepelitsa
2020-06-06 15:24 ` Bart Schaefer
2020-06-06 16:24 ` Peter Stephenson
2020-06-07 11:55 ` Daniel Shahaf
2020-06-07 17:00 ` Peter Stephenson
2020-06-08 3:27 ` Daniel Shahaf
2020-06-08 9:30 ` Peter Stephenson
2020-06-07 17:20 ` Bart Schaefer
2020-06-06 15:09 ` Bart Schaefer
2020-06-04 6:47 ` Martin Tournoij
2020-06-04 9:42 ` Peter Stephenson
2020-06-04 12:20 ` Roman Perepelitsa
2020-06-04 12:26 ` Peter Stephenson
2020-06-04 12:15 ` Peter Stephenson
2020-06-04 20:35 ` Bart Schaefer
2020-06-05 1:59 ` Daniel Shahaf
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