module-concat/lib/puppet/parser/functions/concat_getparam.rb
2014-09-05 16:26:21 -04:00

35 lines
970 B
Ruby

# Test whether a given class or definition is defined
require 'puppet/parser/functions'
Puppet::Parser::Functions.newfunction(:concat_getparam,
:type => :rvalue,
:doc => <<-'ENDOFDOC'
Takes a resource reference and name of the parameter and
returns value of resource's parameter.
*Examples:*
define example_resource($param) {
}
example_resource { "example_resource_instance":
param => "param_value"
}
concat_getparam(Example_resource["example_resource_instance"], "param")
Would return: param_value
ENDOFDOC
) do |vals|
reference, param = vals
raise(ArgumentError, 'Must specify a reference') unless reference
raise(ArgumentError, 'Must specify name of a parameter') unless param and param.instance_of? String
return '' if param.empty?
if resource = findresource(reference.to_s)
return resource[param] if resource[param]
end
return ''
end