From owner-cvs-all@FreeBSD.ORG  Wed Oct 17 12:51:40 2007
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Date: Wed, 17 Oct 2007 12:51:40 +0000
From: Alexey Dokuchaev <danfe@FreeBSD.org>
To: Stefan Esser <se@FreeBSD.org>
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Cc: cvs-src@FreeBSD.org, Ceri Davies <ceri@submonkey.net>, cvs-all@FreeBSD.org,
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Subject: Re: cvs commit: src/usr.bin/locate/locate updatedb.sh
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Circa Oct 17 2007, Stefan Esser wrote:
> Yes, I considered this. In fact, if there is consensus that FAT should
> be excluded, I'd add another category to the configuration parameters
> of the locate.updatedb script. Currently there is:
> 
> 	$SEARCHPATHS	(start points for the directory scan)
> 	$PRUNEPATHS	(sub-trees to exclude from scanning)
> 
> 	$FILESYSTEMS	(file system types to include)
> 
> and we could add:
> 
> 	$PRUNEFS	(file system types to exclude)
> 
> with the latter overriding $FILESYSTEMS ...
> 
> As you may know, the new default for $FILESYSTEMS is all local,
> non-synthetic, non-loopback, principally writable file system types
> (which include msdosfs). The $PRUNEFS could be used to drop a few
> that could be scanned, but where it is still not desirable.

Sounds pretty flexible to me.  While adding new config knobs is
generally a thing to avoid, in this case they seem pretty orthogonal to
each other.

./danfe