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From: "SZEDER Gábor" <szeder@ira•uka.de>
To: Jeff King <peff@peff•net>
Cc: Sverre Rabbelier <srabbelier@gmail•com>,
	Jonathan Nieder <jrnieder@gmail•com>,
	Git List <git@vger•kernel.org>,
	"Shawn O. Pearce" <gsoc@spearce•org>,
	Stephen Boyd <bebarino@gmail•com>
Subject: Re: [BUG] Autocompletion fails with "bash: words: bad array subscript"
Date: Wed, 11 May 2011 00:39:35 +0200	[thread overview]
Message-ID: <20110510223935.GA31029@goldbirke> (raw)
In-Reply-To: <20110510211016.GB26231@sigill.intra.peff.net>

Hi,


On Tue, May 10, 2011 at 05:10:16PM -0400, Jeff King wrote:
> On Tue, May 10, 2011 at 11:02:53PM +0200, Sverre Rabbelier wrote:
> 
> > On Tue, May 10, 2011 at 23:01, Jeff King <peff@peff•net> wrote:
> > > Right. Bash calls into our __git() completion function, which calls the
> > > implementation of _get_comp_words_by_ref from /etc/bash_completion,
> > > which has the bug. If you don't source git completion, then you are just
> > > getting bash's default file completion.
> > 
> > So should we file this bug with bash's completion people?
> 
> Probably, but it would be nice to reduce it to a smaller test case (or
> one that happens just with completions shipped by Debian) just to rule
> out anything git is doing.

Thinking a bit more about it, you don't even need to search history to
reproduce.  Try this:

  _foo ()
  {
          local prev
          _get_comp_words_by_ref prev
  }
  complete -F _foo foo

Then type "foo", go back to the very beginning of the command line,
and then press TAB, and the same "bash: words: bad array subscript"
error appears.

So the bug is definitely not git-related.  The fix would be a check
along the lines of the first two hunks of the patch I just sent out.
Oddly enough, the bash-completion folks had a similar check in the now
deprecated _get_pword() function, that didn't made it into
_get_comp_words_by_ref()...


Best,
Gábor

  reply	other threads:[~2011-05-10 22:39 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-10 20:13 [BUG] Autocompletion fails with "bash: words: bad array subscript" Sverre Rabbelier
2011-05-10 20:31 ` Jeff King
2011-05-10 20:39   ` Jeff King
2011-05-10 20:47     ` Sverre Rabbelier
2011-05-10 21:01       ` Jeff King
2011-05-10 21:02         ` Sverre Rabbelier
2011-05-10 21:10           ` Jeff King
2011-05-10 22:39             ` SZEDER Gábor [this message]
2011-05-10 23:45               ` Jonathan Nieder
2011-05-11 21:09                 ` SZEDER Gábor
2011-05-10 22:14 ` [PATCH] completion: fix array indexing error after reverse history search SZEDER Gábor
2011-05-10 22:19   ` Sverre Rabbelier

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