Re: module macros are expanded too late - was Determining Solaris patch revisions

[david . nelson]

Hi Rader,

Shortly after emailing the list, I came
up w/ a very similar script.  The only significant difference is that
I report the lastest version since that is what is in affect.

But now I've run into another problem
that I don't understand.

In 'actionsequence' I have listed 'actionsequence
= ( module:showrev module:ods .... )' thinking that I'd have the macros
immediately available. However, they don't appear to be.  Running
cfagent in debug level #2, I'm getting the following around line 9045:

        IsLessThan(${patch_116548},
4)" is evaluated and errors out w/ "${patch_116548} and  4
are NOT numerical

The above line is defined in the 'groups'/'classes'
stanza.  Something else I don't understand is why are some variables
defined in 'control:' and others in 'groups:' - does it matter?

It isn't until _way_ later (aound line
14778) that:

        AddMacroValue(main.patch_116548=3)
        ExpandVarstring(3)
        Added
Macro at hash address 4102 to object main with value patch_116548=  
     3

Any ideas on getting around this problem?

Thanks,
         /\/elson

rader@ginseng.hep.wisc.edu

09/21/2005 09:18 AM

To	"David E. Nelson" <david.nelson@ni.com>
cc	Help-cfengine@gnu.org
Subject	Re: Determining Solaris patch revisions

 > I was thinking of writing a module that would parse the output of
'showrev
 >  -p', 
 > determine the latest rev and then for each patch print out:
 > 
 > =patch_<patchrev>=<rev>
 > 
 > For example:
 > 
 > =patch_118558=3
 > 
 > Numerical comparisons could then be used to determin if a rev was
equal, 
 > greater, or less than.
 > 
 > Any other ideas?

#!/usr/bin/perl -w
use strict;
open(IN,"showrev -p |");
while(<IN>) {
  if ( $_ =~ /^Patch: (\d+)\-(\d+)/ ) {
    print "=solaris_patchrev_$1=$2\n";
  }
}
close(IN);

...seems simple enough?

...but do you know what patches you care about in advance?  The set
of classes defined by the (any) module needs to be explictly defined
with addinstallable = ( )

steve 
- - - 
systems & network manager
high energy physics
university of wisconsin