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Re: method to check for package installation


From: Chip Seraphine
Subject: Re: method to check for package installation
Date: Wed, 28 Apr 2004 08:59:42 -0500
User-agent: KMail/1.5.4

Consistency is good, but so is not spending too much effort on code you intend 
to junk in the forseeable future.

I gave up on thinking too hard about that same problem because RPM and Sol pkg 
are just fundamentally different animals.  RPM is a lot better than Sol is at 
relocation, noninteractive installs, transparent upgrades, diagnostics, etc, 
and I was sort of crippling myself by trying to treat them as 
interchangeable.  (ObligEcumenicalRemark: Sol pkgs have their advantages 
too!)

Anyway, I wrote a module in Perl to handle the package updates (it reads a 
list of desired packages and versions from files based on the defined 
classes) and now use packages: (plus a smaller perl script) to handle the 
RPMs.  When The Time Comes, I will happily junk the Sol pkg module and write 
another packages: section, but I figured there is no reason to spend time 
having my package-module support RPM when that is a dead end.



On Wednesday 28 April 2004 08:06, Christian Pearce wrote:
> Chip,
> 
> Yea I saw you guys were having issues with it.  I am currently using
> 2.1.4.  I would like to move to packaging.  I want it to support Solaris
> first.  I don't know if I will personally get a chance to write any of
> that.  Have there been requests in the past?   The reason I still with
> this way of doing it is for consistency.
> 
> On Wed, 2004-04-28 at 09:01, Chip Seraphine wrote:
> > Be careful if you are using the latest versions.... ReturnsZero() has not 
been 
> > working lately for me (and some others on the list).
> > 
> > 
> > On Wednesday 28 April 2004 07:17, Christian Pearce wrote:
> > > Graham,
> > > 
> > > I have been doing this for years.
> > > 
> > > control:
> > >  
> > >     logwatch_rev     = ( "5.1-1" )
> > >     logwatch_package = ( "logwatch-$(logwatch_rev).noarch.rpm" )
> > > 
> > > groups:
> > >     # Test to see if logwatch is installed.
> > >     logwatch_installed = ( ReturnsZero(${rpm} -q --quiet logwatch) )
> > >  
> > >     # Test to see if logwatch is upgraded to the latest version.
> > >     logwatch_upgraded = ( ReturnsZero(${rpm} -q --quiet
> > > logwatch-${logwatch_rev}) )
> > >  
> > > 
> > > 
> > > On Tue, 2004-04-27 at 20:38, Graham Allan wrote:
> > > > I'm trying to write a method file to check if a particular RPM package
> > > > is installed, and if not, install it.
> > > > 
> > > > So far I've completely failed to make cfengine check whether a package
> > > > is installed, when the package name is held in a variable.
> > > > 
> > > > Attempts 1 and 2 were to define a class.
> > > > 
> > > > classes:
> > > >   package_installed = ( '/bin/rpm -q ${packagename}' )
> > > > 
> > > > and...
> > > > 
> > > > classes:
> > > >   package_installed = ( ReturnsZero(/bin/rpm -q ${packagename}) )
> > > > 
> > > > Attempt 3 was use use the "packages" action.
> > > > 
> > > > packages:
> > > >   any::
> > > >         $(packagename) pkgmgr=rpm define=package_installed
> > > > 
> > > > 
> > > > In every case, the cfengine output shows that rpm is being called to
> > > > check for a literal "${packagename}" package - the variable is not
> > > > getting substituted. The same commands work fine when they contain the
> > > > literal package name.
> > > > 
> > > > Is there any way I've missed that might make this work?
> > > > 
> > > > G.
> > > -- 
> > > Christian Pearce
> > > http://www.commnav.com
> > > http://www.perfectorder.com
> > > 
> > > 
> > > 
> > > 
> > > _______________________________________________
> > > Help-cfengine mailing list
> > > address@hidden
> > > http://mail.gnu.org/mailman/listinfo/help-cfengine
> > > 
> -- 
> Christian Pearce
> http://www.commnav.com
> http://www.perfectorder.com
> 
> 





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