Date: Mon, 01 Mar 2010 21:11:51 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: freebsd-questions@freebsd.org Subject: Re: how do I tell ports that perl5.8 should never be installed? Message-ID: <4B8C2D97.70808@infracaninophile.co.uk> In-Reply-To: <4B8C0538.3090309@infracaninophile.co.uk> References: <86zl2tkrrv.fsf@blue.stonehenge.com> <6201873e1002281349n2bcfd16dte6fdce53cd14c1db@mail.gmail.com> <86iq9hkoxf.fsf@blue.stonehenge.com> <6201873e1002281738o35444a7ahcc184951f712f0a7@mail.gmail.com> <86ocj8kee0.fsf@blue.stonehenge.com> <6201873e1002281742i687c2d41y44e3e0f97f35166f@mail.gmail.com> <86k4twke6h.fsf@blue.stonehenge.com> <4B8B8EF4.9040806@infracaninophile.co.uk> <86pr3ohs9f.fsf@blue.stonehenge.com> <4B8C0538.3090309@infracaninophile.co.uk>
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On 01/03/2010 18:19:36, Matthew Seaman wrote:
> On second thoughts, writing a small wrapper around pkg_add(1) that greps
> through the @pkgdep lines in the +CONTENTS file from the package tarball
> and bails if it finds the wrong version of perl would be a much cleaner
> approach. The -M (--master) and -S (--slave) flags to pkg_add look
> interesting in this context.
Arrgh. This is so nearly workable. Unfortunately, -M or -S don't play
nicely with options like -r or -v -- seems you're meant to have local
copies of all of the dependencies already downloaded and in a directory
on $PKG_PATH in that case.
Given that, then this script will reject any attempt to install a pkg
that depends on perl-5.8:
#!/bin/sh
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin ;
export PATH
IFS='
' ; export IFS
umask 022
reject='^@pkgdep perl-5.8'
TMPFILE=$(mktemp -t mypkgadd) || exit 1
trap "rm $TMPFILE" KILL HUP EXIT
if pkg_add -M ${1+$@} | sed -n -e '/^\/var\/tmp\/instmp/,$p' | \
tee $TMPFILE | grep "$reject" 2>&1 >/dev/null ; then
echo "Error: found forbidden package dependency $reject"
exit 1
fi
pkg_add -S < $TMPFILE && rm -rf $( head -1 $TMPFILE )
#
# That's All Folks!
#
Now, the only missing bit is 'pkg_add -r -S' not fetching dependency
pkgs from the remote site. Also options like -r and -v seem to cause
bogons to be emitted to stdout which screws up the -M action, but that
has been worked around.
Cheers,
Matthew
- --
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
Kent, CT11 9PW
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