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From: Carlos Santos <unixmania@gmail.com>
To: Karel Zak <kzak@redhat.com>
Cc: J William Piggott <elseifthen@gmx.com>, util-linux@vger.kernel.org
Subject: Re: [ANNOUNCE] util-linux v2.35
Date: Mon, 27 Jan 2020 13:38:37 -0300
Message-ID: <CAJ4jsaf+s71UB9YOS_jeAn79t=2vSsY+7b-UvGPUEne87+ohPQ@mail.gmail.com> (raw)
In-Reply-To: <20200127161317.wwyupvqbighx3rqx@ws.net.home>

On Mon, Jan 27, 2020 at 1:13 PM Karel Zak <kzak@redhat.com> wrote:
>
> On Sun, Jan 26, 2020 at 11:59:59AM -0500, J William Piggott wrote:
> > You do realize that I had to heavily modify that file to remove its
> > gnulib dependencies (because you said no to gnulib). If I recall
>
> I know, this is why we keep it in the tree (and thanks for all the
> work!).
>
> > correctly I had newer and older versions to chose from and picked that
> > one due to it having the most bugs fixed while still being practical to
> > strip its gnulib dependence.
> >
> > The reasons for making the change were:
> >  * remove hwclock's dependence on date(1)
> >  * remove an insecure call to date(1)
> >  * I thought there would be to many complaints if the accepted input
> >    date formats were changed
> >
> > As to the last bullet point; personally I think having the --date option
> > accept every date syntax know to history is nonsense.
>
> Yes, I agree it's probably overkill.
>
> > Or you could just use the existing utillinux date parser.
>
> This is what I have implemented for --disable-hwclock-gplv3 to have
> anything ASAP for the next 2.35.1 update... Maybe we can make it the
> default for the next release v2.36 and later remove the gnulib code at
> all.
>
> > The question is, do you want to deal with any pushback for
> > changing the long established accepted --date formats?
>
> IMHO the existing utillinux date parser is good enough, but I have no
> clue how people use --date.

This is a bit disturbing. People should know in advance what date/time
formats hwclock supports. They should be described in the man page, at
least in a simple statement like “the suported date formats are the
same as foo(3)”. Leaving it to be guessed by users, either reading the
source code or testing at run-time does not make sense. The man page
does not even mention Documentation/parse-date.txt.

--
Carlos Santos <unixmania@gmail.com>

  reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-21 10:57 Karel Zak
2020-01-24 19:16 ` Carlos Santos
2020-01-25 10:51   ` Karel Zak
2020-01-25 11:19     ` Carlos Santos
2020-01-26 16:59     ` J William Piggott
2020-01-26 17:50       ` Carlos Santos
2020-01-27 16:13       ` Karel Zak
2020-01-27 16:38         ` Carlos Santos [this message]
2020-01-27 20:18           ` Karel Zak
2020-01-27 13:34   ` Karel Zak
2020-01-27 13:40     ` Karel Zak
2020-01-27 15:25       ` Karel Zak
2020-01-27 16:29       ` Carlos Santos
2020-01-27 20:21         ` Karel Zak
2020-01-28 19:24           ` Sami Kerola
2020-01-30 11:17             ` Karel Zak

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