1 files changed, 60 insertions, 0 deletions
diff --git a/lib/chef/dsl/include_attribute.rb b/lib/chef/dsl/include_attribute.rb
new file mode 100644
index 0000000000..d8342af6a7
--- /dev/null
+++ b/lib/chef/dsl/include_attribute.rb
@@ -0,0 +1,60 @@
+#
+# Author:: Adam Jacob (<adam@opscode.com>)
+# Copyright:: Copyright (c) 2008, 2009 Opscode, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+require 'chef/log'
+
+class Chef
+  module DSL
+    module IncludeAttribute
+
+      # Loads the attribute file specified by the short name of the
+      # file, e.g., loads specified cookbook's
+      #   "attributes/mailservers.rb"
+      # if passed
+      #   "mailservers"
+      def include_attribute(*attr_file_specs)
+        attr_file_specs.flatten.each do |attr_file_spec|
+          cookbook_name, attr_file = parse_attribute_file_spec(attr_file_spec)
+          if run_context.loaded_fully_qualified_attribute?(cookbook_name, attr_file)
+            Chef::Log.debug("I am not loading attribute file #{cookbook_name}::#{attr_file}, because I have already seen it.")
+          else
+            Chef::Log.debug("Loading Attribute #{cookbook_name}::#{attr_file}")
+            run_context.loaded_attribute(cookbook_name, attr_file)
+            attr_file_path = run_context.resolve_attribute(cookbook_name, attr_file)
+            node.from_file(attr_file_path)
+          end
+        end
+        true
+      end
+
+      # Takes a attribute file specification, like "apache2" or "mysql::server"
+      # and converts it to a 2 element array of [cookbook_name, attribute_file_name]
+      def parse_attribute_file_spec(file_spec)
+        if match = file_spec.match(/(.+?)::(.+)/)
+          [match[1], match[2]]
+        else
+          [file_spec, "default"]
+        end
+      end
+
+    end
+  end
+end
+
+
+