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Date: Thu, 12 Oct 2006 22:12:50 -0400 (EDT)
From: Igor Peshansky <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: John Morrison <john AT morrison DOT mine DOT nu>
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Subject: Re: [ANNOUNCEMENT] Updated: vim-7.0.122-1
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On Thu, 12 Oct 2006, John Morrison wrote:

> On Thu, October 12, 2006 2:41 pm, Igor Peshansky wrote:
> > On Thu, 12 Oct 2006, John Morrison wrote:
> >
> >> On Thu, October 12, 2006 12:54 pm, Corinna Vinschen wrote:
> >> >
> >> > I think it is needed.  At least the base-files-mketc.sh postinstall
> >> > script creates paths which point outside the Cygwin root, so it
> >> > either needs to reference cygdrive paths, or use DOS paths.  Using
> >> > cygdrives paths is preferable, IMHO.  Since the cygdrive path is
> >> > not fixed, and can even differ between different users on the same
> >> > machine, there must be a fixed method to reference these paths.
> >> >
> >> > Personally I'd rather not further clutter the root directory, which
> >> > is why /proc seems to me to be a better place to point to the
> >> > cygdrive paths in a constant fashion.  But that is only a mild
> >> > opposition.  I'd also go along with /cygdrive.
> >>
> >> I've changed the script (which I didn't write!) to use cygpath
> >> --sysdir which outputs cygdrive paths.  I should be able to get a new
> >> release out by the weekend, but I'll hold off until this discussion
> >> is decided. Personally I don't mind either an always existing
> >> /cygdrive or something in /proc.  Only thing that would ask is; what
> >> would cygpath output?
> >
> > John,
> >
> > I wrote the script originally, and the initial version did use POSIX
> > paths.
>
> I thought you did and was suprised to find it not using POSIX paths but
> assumed that there was a reason...
>
> >  I've just re-read the early discussions, and found this:
> >
> > <http://cygwin.com/ml/cygwin-apps/2003-02/msg00033.html>.
>
> and there it is.
>
> > I think the issue is still valid -- if the installing user has the
> > user-level cygdrive prefix set, "cygpath --sysdir" will output
> > something that won't work for other users on the machine, and the
> > links will be broken.
> >
> > If we add a standard /cygdrive prefix, we'll also need to change
> > cygpath to force that standard prefix for out-of-tree paths (otherwise
> > user and system mounts take precedence).  Something like "cygpath -S
> > -s" (or "cygpath --sysdir --standard")...
> >
> > However, if we really want to make this more robust, we'd need something
> > like this:
> >
> > SAVED_CYGDRIVE="`mount -m | grep '^mount -u -[bt] -\?-c'`"
> > mount -u -b -c '/cygdrive'
> > # Do the path manipulation here
> > umount -u -c
> > [ -n "$SAVED_CYGDRIVE" ] && eval "$SAVED_CYGDRIVE"
> >
> > Opinions?
>
> Can you write the new version and I'll just package it? ;)

Sure.  But Corinna provided a much simpler solution (which works, at least
on my machine).  Attached is the new version of the script.
	Igor
-- 
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