From: Eygene Ryabinkin <rea-git@codelabs.ru>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH] Allow shell scripts to run with non-Bash /bin/sh
Date: Sun, 23 Sep 2007 12:31:18 +0400 [thread overview]
Message-ID: <20070923083118.GB99140@void.codelabs.ru> (raw)
In-Reply-To: <7vtzpnf6c9.fsf@gitster.siamese.dyndns.org>
Junio, *, good day.
Sat, Sep 22, 2007 at 01:32:38AM -0700, Junio C Hamano wrote:
> > OK, you're right. Especially if /bin/sh from Solaris and OpenBSD
> > are working and they are not Bash. But I would not tell that
> > the shell is broken now -- I had not seen the POSIX specification.
> > Does it specifies how the shell should work in this case?
>
> I have always been assuming it to be the case (this construct is
> not my invention but is an old school idiom I just inherited
> from my mentor) and never looked at the spec recently, but I
> re-read it just to make sure. The answer is yes.
>
> Visit http://www.opengroup.org/onlinepubs/000095399/ and follow
> "Shell and Utilities volume (XCU)" and then "Case conditional
> construct".
Yes, thanks for the pointer.
> So, as David suggests, if
>
> false
> case Ultra in
> Super) false ;;
> Hyper) true ;;
> esac && echo case returned ok
>
> does not say "case returned ok", then the shell has a bit of
> problem.
Correct: the current /bin/sh for FreeBSD does not set zero exit
code if no case patterns were matched. So, I apologize for my quick
decision on the non-brokenness of the /bin/sh -- it is broken.
I had fixed the shell and filed the problem report. May be the
change will be incorporated into the future release of FreeBSD.
Meanwhile, I had added workarounds to the other places Junio mentioned
in his follow-up and will try to push this patch to the FreeBSD
port of Git. The explanation had been changed too ;))
Thanks to all people who helped me to realize what is wrong and where!
--
Eygene
next prev parent reply other threads:[~2007-09-23 8:31 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-21 21:43 [PATCH] Allow shell scripts to run with non-Bash /bin/sh Eygene Ryabinkin
2007-09-21 23:52 ` Junio C Hamano
2007-09-22 0:05 ` David Kastrup
2007-09-22 0:18 ` Junio C Hamano
2007-09-22 0:21 ` Junio C Hamano
2007-09-22 0:26 ` David Kastrup
2007-09-22 3:54 ` Eygene Ryabinkin
2007-09-22 4:06 ` David Kastrup
2007-09-22 6:58 ` Junio C Hamano
2007-09-22 7:34 ` Vineet Kumar
2007-09-22 11:07 ` David Kastrup
2007-09-22 6:54 ` Junio C Hamano
2007-09-22 21:37 ` Adam Flott
2007-09-22 8:32 ` Junio C Hamano
2007-09-23 8:31 ` Eygene Ryabinkin [this message]
2007-09-23 8:59 ` David Kastrup
2007-09-23 19:20 ` Junio C Hamano
2007-09-23 19:33 ` David Kastrup
2007-09-23 20:42 ` [PATCH] Supplant the "while case ... break ;; esac" idiom David Kastrup
2007-09-23 22:20 ` Junio C Hamano
2007-09-24 6:22 ` David Kastrup
2007-09-24 14:24 ` David Kastrup
2007-09-24 23:31 ` Junio C Hamano
2007-09-25 6:13 ` David Kastrup
2007-09-25 6:29 ` Junio C Hamano
2007-09-25 10:33 ` Johannes Schindelin
2007-09-25 10:46 ` Avi Kivity
2007-09-24 6:05 ` Mike Hommey
2007-09-24 6:26 ` David Kastrup
2007-09-24 6:30 ` David Symonds
2007-09-24 7:57 ` David Kastrup
2007-09-24 8:01 ` Pierre Habouzit
2007-09-24 8:04 ` Pierre Habouzit
2007-09-24 10:33 ` Johannes Schindelin
2007-09-24 11:21 ` Miles Bader
2007-09-24 11:35 ` Eygene Ryabinkin
2007-09-24 13:45 ` Miles Bader
2007-09-24 13:58 ` David Kastrup
2007-09-24 14:04 ` Johannes Schindelin
2007-09-24 14:10 ` David Kastrup
2007-09-24 14:58 ` Miles Bader
2007-09-24 16:24 ` Junio C Hamano
2007-09-24 11:39 ` David Kastrup
2007-09-24 8:29 ` David Kastrup
2007-09-22 2:33 ` [PATCH] Allow shell scripts to run with non-Bash /bin/sh Junio C Hamano
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