On Tue, Sep 30, 2008 at 09:04:38PM +0100, Keith Roberts wrote: > On Tue, 30 Sep 2008, Peter Robinson wrote: > > >To: Keith Roberts <keith@xxxxxxxxxxxx>, > > For testers of Fedora Core development releases > > <fedora-test-list@xxxxxxxxxx> > >From: Peter Robinson <pbrobinson@xxxxxxxxx> > >Subject: Re: Help me triage > > > >>>>># Is there a general policy around using perl in pre/post ? > >>>>>https://bugzilla.redhat.com/show_bug.cgi?id=462996 > >>>> > >>>>There is no such policy. > >>> > >>>I wish there was a policy for not using perl in pre/post scripts. The > >>>number of packages that use perl in a single line of the spec file and > >>>don't require it as a general dependency hence pulling in all of perl > >>>for nothing. > >> > >>Not been following this topic that closely. Are you referring to using > >>perl > >>for pre/post RPM package installation? > > > >Yes. As per the RHBZ bug that's mentioned (and just been closed > >because the perl script has been replaced with a sed script). > > > >Peter > > Would it be practical to use a PHP CLI script for pre/post > RPM installation - not in this particular case, but in > general? I find that bash scripts are a bit cryptic, and > lack the power that PHP CLI scripts can offer. I have > written backup scripts using PHP CLI mode scripts, and then > called bash O/S shell programs that are not natively > suppoerted by PHP. This gives me all the power of bash shell > scripting, and all the added functionality and ease of use > of PHP syntax :) This is totally missing the point. The fact that RPM %post scripts exist at all is bad enough, but if you find yourself needing more "power" than just shell its usually a sign that you're solving the wrong problem. PHP isn't helping here - in fact it would be encouraging over-use of scripts. It is a pretty reasonable generalization that if you need more than shell, then you're probably doing it wrong. Furthermore anything you do in %post, needs to be reversable upon uninstall for %postun when the last instance of a package is removed. If your script is longer than a couple of lines of shell, then its highly unlikely you'll be able to create a bug-free %postun to reverse its action. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :| -- fedora-test-list mailing list fedora-test-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-test-list
