GNU bug report logs - #7444
Undocumented option -I ?

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: hubert depesz lubaczewski <depesz <at> depesz.com>
To: bug-coreutils <at> gnu.org
Subject: Undocumented option -I ?
Date: Fri, 19 Nov 2010 14:52:53 +0100

Hi,
apparently
(http://www.commandlinefu.com/commands/view/7110/monitor-a-file-with-tail-with-timestamps-added)
date supports -I switch, but it's undocumented.

I found it in sources, and it seems to be related to iso format, but
still - adding it to documentation would be nice.

Best regards,

depesz


-- 
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Message #8 received at 7444 <at> debbugs.gnu.org (full text, mbox):

From: Eric Blake <eblake <at> redhat.com>
To: depesz <at> depesz.com
Cc: 7444 <at> debbugs.gnu.org
Subject: Re: bug#7444: Undocumented option -I ?
Date: Fri, 19 Nov 2010 08:09:03 -0700

[Message part 1 (text/plain, inline)]

On 11/19/2010 06:52 AM, hubert depesz lubaczewski wrote:
> Hi,
> apparently
> (http://www.commandlinefu.com/commands/view/7110/monitor-a-file-with-tail-with-timestamps-added)
> date supports -I switch, but it's undocumented.
> 
> I found it in sources, and it seems to be related to iso format, but
> still - adding it to documentation would be nice.

Yes, -I is a synonym for --iso-8601, but both options were deprecated in
2005 by commit 2c29ba03 (and hence undocumented).  One real fix would be
to start making this option output a warning, so that we can delete it.

http://lists.gnu.org/archive/html/bug-coreutils/2005-09/msg00056.html
http://lists.gnu.org/archive/html/bug-coreutils/2005-07/msg00186.html

Another would be to teach getdate.y how to parse 'T' as the separator
between date and time, so that we could reinstate the option (it was
deprecated because we feel badly about supporting an output format that
we can't reparse as an input format).

-- 
Eric Blake   eblake <at> redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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Message #13 received at 7444-done <at> debbugs.gnu.org (full text, mbox):

From: Jim Meyering <jim <at> meyering.net>
To: coreutils <at> gnu.org
Cc: 7444-done <at> debbugs.gnu.org
Subject: Re: [PATCH] date: reinstate the --iso-8601 (-I) option
Date: Fri, 28 Oct 2011 17:43:05 +0200

Jim Meyering wrote:
> Now that date can finally parse the output of date --iso-8601 (-I),
> it's only fair to un-deprecate it and restore its documentation:
>
> Subject: [PATCH] date: reinstate the --iso-8601 (-I) option
>
> We deprecated and undocumented the --iso-8601 (-I) option mostly
> because date could not parse that particular format.  Now that
> it can, it's time to restore the documentation.
> * src/date.c (usage): Document it.
> * doc/coreutils.texi (Options for date): Reinstate documentation.
> Reported by Hubert Depesz Lubaczewski in http://bugs.gnu.org/7444.

Pushed, hence closing this.

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