Re: feature request

[GERMA Denis]

Hi,
I am surprise but I tried to use the ! operator on the 1.6.3 version of
cfengine

on a test programe :

>classes:
>
>                classe1 = ( '/usr/bin/test -f classe1' )
>                not_classe1 = ( !classe1 )

And cfengine complains :
"Wildcards cannot be used in this context:" on the "not_classe1" line.

I would have used in the same spirit the "and" operator in the classe
definition,
but it does not seems possible yet.

In fact I would have been a good Idea to be able to use all logical operations
on classe constructions.

Have I missed something ?

I have joined a start for a test program.
run cfengine on it and all lines should be duplicated.

Thanks for all.
D.Germa


Mark.Burgess@iu.hio.no a écrit :

> On 17 Apr, Alan Sparks wrote:
> > Don't know how hard this would be to implement -- so I'll ask anyway...
> >
> > Several times I've run into the need for a class representing "run these
> > if no other class applies."  Something like:
> >
> > resolve:
> >       box1||box2::
> >               1.2.3.4
> >       default::
> >               4.3.2.1
> >
> > I just made "default" up... the idea is the "default" class applies if
> > no other more specific classes apply.  I know something like this
> > behavior can be synthesized by using class defs and negated classes, but
> > it is extremely cumbersome to do.
> >
> > I don't think "any" is any good here, since it would be executed
> > regardless of whether other rules apply.
> >
> > Opinions?
> > -Alan
> >
>
> I don't see what is difficult about using the ! sign. Figuring
> out what is "default" is much easier for you than for cfengine.
> You could do this:
>
> classes:
>
>    someclass = ( box1 box 2 )
>    default = ( !someclass )
>
> resolve:
>
>  someclass::
>    1.2.3.4
>
>  default:
>
>    1.2.3.4
>
> if you want to make it more readable.
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Work: +47 22453272            Email:  Mark.Burgess@iu.hio.no
> Fax : +47 22453205            WWW  :  http://www.iu.hio.no/~mark
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
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control:

        linux::
                actionsequence =
                        (
                                shellcommands
                        )

#                domain  = ( fty.cstelecom.com )
                domain  = ( my_domain )

classes:

                classe1 = ( '/usr/bin/test -f classe1' )
                classe2 = ( '/usr/bin/test -f classe2' )
                classe3 = ( '/usr/bin/test -f classe3' )
                classe4 = ( '/usr/bin/test -f classe4' )

                classe1_and_classe2 = ( classe1.classe2 )
                #classe1_and_not_classe2 = ( classe1.!classe2 )
                #not_classe1_and_classe2 = ( !classe1.classe2 )
                #not_classe1_and_not_classe2 = ( !classe1.!classe2 )

                classe1_and_classe3 = ( classe1.classe3 )
                #classe1_and_not_classe3 = ( classe1.!classe3 )
                #not_classe1_and_classe3 = ( !classe1.classe3 )
                #not_classe1_and_not_classe3 = ( !classe1.!classe3 )

                #not_classe1 = ( !classe1 )
                #not_classe2 = ( !classe2 )
                #not_classe3 = ( !classe3 )
                #not_classe4 = ( !classe4 )
                
                


shellcommands:
        linux::
                "/usr/bin/touch classe1"
                "/usr/bin/touch classe2"
                "/bin/rm -f classe3"
                "/bin/rm -f classe4"

        linux.classe1:: 
                "/bin/echo classe1 OK"

        linux.classe2:: 
                "/bin/echo classe2 OK"

        linux.classe3:: 
                "/bin/echo classe3 NOK"

        linux.classe4:: 
                "/bin/echo classe4 NOK"

        linux.!classe1:: 
                "/bin/echo !classe1 NOK"

        linux.!classe2:: 
                "/bin/echo !classe2 NOK"

        linux.!classe3:: 
                "/bin/echo !classe3 OK"

        linux.!classe4:: 
                "/bin/echo !classe4 OK"

        linux.not_classe1:: 
                "/bin/echo !classe1 NOK"

        linux.not_classe2:: 
                "/bin/echo !classe2 NOK"

        linux.not_classe3:: 
                "/bin/echo !classe3 OK"

        linux.not_classe4:: 
                "/bin/echo !classe4 OK"


        linux.classe1_and_classe2:: 
                "/bin/echo classe1.classe2 OK"

        linux.classe1_and_not_classe2:: 
                "/bin/echo classe1.!classe2 NOK"

        linux.not_classe1_and_classe2:: 
                "/bin/echo !classe1.classe2 NOK"

        linux.not_classe1_and_not_classe2:: 
                "/bin/echo !classe1.!classe2 NOK"

        linux.classe1.classe2:: 
                "/bin/echo classe1.classe2 OK"

        linux.classe1.!classe2:: 
                "/bin/echo classe1.!classe2 NOK"

        linux.!classe1.classe2:: 
                "/bin/echo !classe1.classe2 NOK"

        linux.!classe1.!classe2:: 
                "/bin/echo !classe1.!classe2 NOK"


        linux.classe1_and_classe3:: 
                "/bin/echo classe1.classe3 NOK"

        linux.classe1_and_not_classe3:: 
                "/bin/echo classe1.!classe3 OK"

        linux.not_classe1_and_classe3:: 
                "/bin/echo !classe1.classe3 NOK"

        linux.not_classe1_and_not_classe3:: 
                "/bin/echo !classe1.!classe3 NOK"


        linux.classe1.classe3:: 
                "/bin/echo classe1.classe3 NOK"

        linux.classe1.!classe3:: 
                "/bin/echo classe1.!classe3 OK"

        linux.!classe1.classe3:: 
                "/bin/echo !classe1.classe3 NOK"

        linux.!classe1.!classe3:: 
                "/bin/echo !classe1.!classe3 NOK"