From: Sven Wischnowsky <wischnow@informatik.hu-berlin.de>
To: zsh-workers@math.gatech.edu
Subject: Re: bug 3.1.5 symlinks & cd
Date: Wed, 18 Nov 1998 10:09:34 +0100 (MET) [thread overview]
Message-ID: <199811180909.KAA14049@beta.informatik.hu-berlin.de> (raw)
In-Reply-To: Phil Pennock's message of Sun, 15 Nov 1998 03:01:58 +0000 (GMT)
Phil Pennock wrote:
>
> Typing away merrily, Bart Schaefer produced the immortal words:
> > On Nov 13, 9:19pm, Phil Pennock wrote:
> > } Using a stock zsh-3.1.5, there seems to be some problem with completion
> > } using one interpretation of a directory tree with symlinks, and cd using
> > } another.
> >
> > This isn't new. It behaves the same way in 3.0.5. `setopt chaselinks'
> > will make the effect go away.
>
> Yes, but:
> CHASE_LINKS (-w)
> Resolve symbolic links to their true values when
> changing directory.
>
> The 'effect' only goes away insofar as this avoids the problem by never
> having a symbolic-link as part of PWD.
>
> If you want to have the 'real' view of a layout, fine. But forcing this
> option just to get a consistent interpretation of the FS dodges the fact
> that two different parts of the shell are taking differing approaches to
> symbolic-links pointing to directories. Completion ignores the symbolic
> aspect of PWD, such that a ../ always uses the underlying 'true' layout,
> whilst cd handles the symbolic links. This is a conflict that's
> entirely due to two parts of zsh doing things very differently.
I agree that this is a ugliness. But (as I already wrote) the only way
I see to fix this cleanly is to add yet another option for compctl to
make -f, -g, and -/ use CHASELINKS. On the other hand, this is a bit
of an overkill considering that this would be useful only for cd and
the like.
A (partial) solution is to use a shell function, like this:
compctl -K cdcomp -S/ -q cd pushd
cdcomp() {
local d r
if [[ "$1" == */* ]]
then
d="${1%%/*}"
r="${1#*/}"
cd "$d" >& /dev/null
reply=( ${r}*${2}(N-/) )
reply=( $d/$reply )
cd - >& /dev/null
else
reply=( ${1}*${2}(N-/) )
fi
}
So the question is: do you think that this is enough (probably with
some more work on the function) or should we build this into the shell?
Bye
Sven
--
Sven Wischnowsky wischnow@informatik.hu-berlin.de
next reply other threads:[~1998-11-18 9:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-11-18 9:09 Sven Wischnowsky [this message]
1998-11-18 13:06 ` Peter Stephenson
1998-11-18 19:25 ` Bart Schaefer
1998-11-18 22:41 ` Phil Pennock
-- strict thread matches above, loose matches on Subject: below --
1998-11-18 13:41 Sven Wischnowsky
1998-11-16 9:28 Sven Wischnowsky
1998-11-13 21:19 Phil Pennock
1998-11-14 5:48 ` Bart Schaefer
1998-11-15 3:01 ` Phil Pennock
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