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Date:      Wed, 21 Jun 2006 12:05:09 +0100
From:      Florent Thoumie <flz@FreeBSD.org>
To:        Yar Tikhiy <yar@comp.chem.msu.su>
Cc:        cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/etc rc.subr src/share/man/man8 rc.subr.8
Message-ID:  <1150887909.3467.18.camel@mayday.esat.net>
In-Reply-To: <20060621105253.GE45947@comp.chem.msu.su>
References:  <200606210942.k5L9gtAi060504@repoman.freebsd.org> <1150883785.3467.4.camel@mayday.esat.net> <20060621105253.GE45947@comp.chem.msu.su>

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On Wed, 2006-06-21 at 14:52 +0400, Yar Tikhiy wrote:
> On Wed, Jun 21, 2006 at 10:56:25AM +0100, Florent Thoumie wrote:
> > On Wed, 2006-06-21 at 09:42 +0000, Yar Tikhiy wrote:
> > > yar         2006-06-21 09:42:55 UTC
> > >=20
> > >   FreeBSD src repository
> > >=20
> > >   Modified files:
> > >     etc                  rc.subr=20
> > >     share/man/man8       rc.subr.8=20
> > >   Log:
> > >   Quite a number of rc.d scripts try to load kernel modules.  Many
> > >   of them do that conditionally depending on kldstat.  The code is
> > >   duplicated all over, but bugs can be uniqie.
> > >  =20
> > >   To make the things more consistent, introduce a new rc.subr functio=
n,
> > >   load_kld, which takes care of loading a kernel module conditionally=
.
> > >  =20
> > >   (Found this lying for a while in my p4 branch for various hacks.)
> >=20
> > I added such a function some weeks ago (far more simple though). Talkin=
g
> > with pjd, I've backed it out to use the somewhat straight-forward metho=
d
> > he used in rc.d/geli.
>=20
> rc.d/geli doesn't use kldload directlty, so it certainly won't
> benefit from the function I introduced.

Then I'm not sure what script would benefit from this function. Can you
point me to an example?

> > I don't have a particular feeling against your function but it uses
> > commands that may not be available early enough (getopt, egrep). While
> > it's easy to remove the getopt dependency (see rc.d/mdconfig), it's not
> > the case for egrep.
>=20
> It's POSIX getopts, which ought to be a shell built-it by its design.
> egrep is used with -e only, one can avoid using it if egrep isn't
> available yet.  The only issue is true and false, I was sure they
> were in /bin, but it can be fixed easily.

Still, with /bin/sh, getopt isn't a builtin:

$ sh -c 'which getopt'
/usr/bin/getopt

You won't gain anything using grep instead of egrep since they're both
in /usr/bin.

--=20
Florent Thoumie
flz@FreeBSD.org
FreeBSD Committer

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