Puppet users - Mar 2012 - puppet (ruby?) equivalent of defiend()

In Perl we have the functionality of

if ( defined($somevar) ) {
    ... do something ....
}


Is there an equivalent you can use within a puppet manifest?


-- 
Peter L. Berghold
Owner, Shark River Technical Solutions LLC

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On Fri, Mar 2, 2012 at 10:37 AM, Peter Berghold
<salty.cowdawg@gmail.com>wrote:
>
> In Perl we have the functionality of
>
> if ( defined($somevar) ) {
>     ... do something ....
> }
>
if ( $somevar != undef) {
  ...
}

You can test this quickly using the --execute flag to puppet apply:

% puppet apply -e ''if $foo == undef { notice "foo is
undefined" } else {
notice "foo is defined" }''
notice: Scope(Class[main]): foo is undefined
notice: Finished catalog run in 0.01 seconds

% FACTER_foo=bar puppet apply -e ''if $foo == undef { notice "foo
is
undefined" } else { notice "foo is defined" }''
notice: Scope(Class[main]): foo is defined
notice: Finished catalog run in 0.01 seconds

-Jeff

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