1 files changed, 36 insertions, 0 deletions
diff --git a/code/environments/production/modules/stdlib/lib/puppet/parser/functions/getparam.rb b/code/environments/production/modules/stdlib/lib/puppet/parser/functions/getparam.rb
new file mode 100644
index 0000000..d73650b
--- /dev/null
+++ b/code/environments/production/modules/stdlib/lib/puppet/parser/functions/getparam.rb
@@ -0,0 +1,36 @@
+# Test whether a given class or definition is defined
+require 'puppet/parser/functions'
+
+Puppet::Parser::Functions.newfunction(:getparam,
+                                      :type => :rvalue,
+                                      :doc => <<-'DOC'
+    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"
+        }
+
+        getparam(Example_resource["example_resource_instance"], "param")
+
+    Would return: param_value
+  DOC
+                                     ) do |vals|
+  reference, param = vals
+  raise(ArgumentError, 'Must specify a reference') unless reference
+  raise(ArgumentError, 'Must specify name of a parameter') unless param && param.instance_of?(String)
+
+  return '' if param.empty?
+
+  resource = findresource(reference.to_s)
+  if resource
+    return resource[param] unless resource[param].nil?
+  end
+
+  return ''
+end