Date: Fri, 03 Jul 1998 19:28:32 -0700 From: Mike Smith <mike@smith.net.au> To: Garance A Drosihn <drosih@rpi.edu> Cc: hackers@FreeBSD.ORG Subject: Re: Variant Link implementation, continued Message-ID: <199807040228.TAA07480@antipodes.cdrom.com> In-Reply-To: Your message of "Fri, 03 Jul 1998 16:13:48 EDT." <v04011723b1c2dd579a5c@[128.113.24.47]>
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> At 9:16 PM -0700 7/2/98, Mike Smith wrote:
> >> I think there would be less headaches all-around if symlinks did not
> >> key off environment variables, although I do think we'd want them to
> >> key off of something as simple to adjust as environment variables are.
> >
> > This expresses my opinion quite succinctly. Overloading the
> > environment space to also control variant links would be a Very
> > Bad Idea, simply because the risk of name collision is too high.
> >
> > Allowing links to indicate that they *should* be keyed off the
> > environment space, OTOH, isn't such a sin. eg:
> >
> > ${sysctl:hw.arch} and ${env:USER}
>
>
> Now that I've caught up on my sleep a bit, I do think something
> along these lines could be promising. I can't find Terry's
> earlier suggestion (even though I know I reread it just last
> night), but I think that what I want might not be all that much
> different from what he suggested.
>
> Let's say there are three namespaces (just to pick a number):
> sys
> session
> process
This is immediately bad, in that you want a name from the 'session'
namespace to be able to (optionally) override a matching name from the
'sys' namespace.
My personal preference is *still* to use an isolated portion of the
parameter space, preferably one not currently used for anything else.
--
\\ Sometimes you're ahead, \\ Mike Smith
\\ sometimes you're behind. \\ mike@smith.net.au
\\ The race is long, and in the \\ msmith@freebsd.org
\\ end it's only with yourself. \\ msmith@cdrom.com
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