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Re: New symlinks.
- To: Earnie Boyd <cygwin at cygwin dot com>
- Subject: Re: New symlinks.
- From: John Paulson <munch at powertv dot com>
- Date: Thu, 01 Mar 2001 19:16:56 -0800
- Cc: vinschen at redhat dot com
- References: <5.0.2.1.0.20010301173204.02448c90@mailhost>
At 09:51 PM 3/1/2001 -0500, you wrote:
>John Paulson wrote:
> >
> > $ cat `type -p gcc` | wc
> > cat: /usr/bin/gcc: No such file or directory
> > 0 0 0
> >
> > -- Hmmm... A user might think something broke. I have not done a search
> > of the archives to determine how often this asymmetry has been noted
> > by users. I don't recall having seen this mentioned in the year or so
> > I've been subscribed, but then most of neurons have been fried by
> MFC...
> >
>
>If you really want to review the negative chatter about this you should
>visit the autoconf@gnu.org archives.
>
>Earnie.
Yeah, I remember that there was a mention of autoconf with respect to
the symlink proposal. That's why I later said that this proposal should
work well "interactively".
On another note, much of the conversation has dealt with the symlink
being the leaf of a path specification. It will be interesting to see
what happens wrt performance when all elements of a path must be checked
for symlink-ness. I mean that in "/c/cygnus/home/foo/bar/thud" all
elements, "c", "cygnus", "home", "foo", "bar" and "thud", must be checked
for "c.lnk", "cygnus.lnk", ... "thud.lnk".
And when the partial paths _are_ followed, how will that interact with
mount points? If there is a "/c.lnk" file and I also have a mount for
"/c", who wins? During the expansion of the path, is the partially
de-symlinked path looked up in mount table? (Nitpicking is my life).
(Corinna: if you've already done this all this worrying, accept my
apologies for stating the obvious.)
(Earnie: I only replied to you as I didn't want to clutter the list, but if
you think that the non-basename case has been missed in the discussion, either
you or I can post this potential gotcha).
----------------------------
John Paulson
PowerTV, Inc.
Tel: 408/777-5255
Fax: 408/777-4782
mailto:paulson@powertv.com
http://www.powertv.com/
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