Re: Defining a class based on file contents

[Chip Seraphine]

That's exactly what I am talking about, but without the (expensive and 
relatively dangerous) shellout :-)

Mark pointed me at the DefineInGroup command, which is really the 
correct solution for it.  I'm having problems with DefineInGroup, 
actually, but I'll be taking that up on the bugs list :-)

Alan Sparks wrote:

> Maybe I'm misreading your intentions, but are you referring to doing
> something like this?
>
> classes:
>  myclass = ( "grep -s someuser /etc/passwd" )
>
> Where myclass is defined if the grep command returns a zero exit status?
> -Alan
>
> On Mon, 2003-05-12 at 10:23, Chip Seraphine wrote:
>  
>
> > Great!
> >
> > What is the syntax for this?  I tried the obvious (see below) but it failed.
> >
> > editfiles:
> >
> >    { /tmp/foo
> >        BeginGroupIfNotDefined "noclass"
> >            DefineClasses "foo1:foo2"
> >        EndGroup
> >    }
> >
> > This produces "cf:cfengine::/home/titan/chip/cfagent-test.conf:136: 
> > Class definitions inside conditionals or loops are not allowed "
> >
> > mark@iu.hio.no wrote:
> >
> >    
> >
> > > You can define classes in a conditinal block as of 2.0.6.
> > > 2.0.7 is just around the corner, in spite of my saying the
> > > 2.1.0 would be thenext version...
> > >
> > > M
> > >
> > > On 12 May, Chip Seraphine wrote:
> > >
> > >
> > >      
> > >
> > > > I have a situation where I would like to define a class based on the 
> > > > contents of the file, but do not wish to actually modify the file 
> > > > itself.   Does anybody know a good way to do this (other than using a 
> > > > module or shellcommand)?
> > > >
> > > > I have tried "|BeginGroupIfNoLineContaining" and such, but this doesn't 
> > > > do the trick because I can't define classes inside the conditional 
> > > > block.  There is no "touch" type command either, so I am not sure of a 
> > > > safe way to fool cfengine into thinking the file has been edited without 
> > > > doing something dangerous (changing the file) or silly (editing the file 
> > > > and then removing the edit).  I was trying to do something clever with 
> > > > "abort" and "catchabort", but that doesn't seem well suited to this either.
> > > >
> > > > Has anybody else solved a problem like this?
> > > > |
> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > Help-cfengine mailing list
> > > > Help-cfengine@gnu.org
> > > > http://mail.gnu.org/mailman/listinfo/help-cfengine
> > > >   
> > > >
> > > >        
> > >
> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > Work: +47 22453272            Email:  Mark.Burgess@iu.hio.no
> > > Fax : +47 22453205            WWW  :  http://www.iu.hio.no/~mark
> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > >
> > >
> > >
> > >
> > >      
> >
> >
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> >