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Diffstat (limited to 'lib/chef/dsl/recipe.rb')
| -rw-r--r-- | lib/chef/dsl/recipe.rb | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/lib/chef/dsl/recipe.rb b/lib/chef/dsl/recipe.rb new file mode 100644 index 0000000000..1bfe8da0e0 --- /dev/null +++ b/lib/chef/dsl/recipe.rb @@ -0,0 +1,84 @@ +#-- +# Author:: Adam Jacob (<adam@opscode.com>) +# Author:: Christopher Walters (<cw@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/resource' +require 'chef/resource_platform_map' +require 'chef/mixin/convert_to_class_name' +require 'chef/mixin/language' + +class Chef + module DSL + + # == Chef::DSL::Recipe + # Provides the primary recipe DSL functionality for defining Chef resource + # objects via method calls. + module Recipe + + include Chef::Mixin::ConvertToClassName + + def method_missing(method_symbol, *args, &block) + # If we have a definition that matches, we want to use that instead. This should + # let you do some really crazy over-riding of "native" types, if you really want + # to. + if run_context.definitions.has_key?(method_symbol) + # This dupes the high level object, but we still need to dup the params + new_def = run_context.definitions[method_symbol].dup + new_def.params = new_def.params.dup + new_def.node = run_context.node + # This sets up the parameter overrides + new_def.instance_eval(&block) if block + new_recipe = Chef::Recipe.new(cookbook_name, @recipe_name, run_context) + new_recipe.params = new_def.params + new_recipe.params[:name] = args[0] + new_recipe.instance_eval(&new_def.recipe) + else + # Otherwise, we're rocking the regular resource call route. + + # Checks the new platform => short_name => resource mapping initially + # then fall back to the older approach (Chef::Resource.const_get) for + # backward compatibility + resource_class = Chef::Resource.resource_for_node(method_symbol, run_context.node) + + super unless resource_class + raise ArgumentError, "You must supply a name when declaring a #{method_symbol} resource" unless args.size > 0 + + # If we have a resource like this one, we want to steal its state + args << run_context + resource = resource_class.new(*args) + resource.load_prior_resource + resource.cookbook_name = cookbook_name + resource.recipe_name = @recipe_name + resource.params = @params + resource.source_line = caller[0] + # Determine whether this resource is being created in the context of an enclosing Provider + resource.enclosing_provider = self.is_a?(Chef::Provider) ? self : nil + # Evaluate resource attribute DSL + resource.instance_eval(&block) if block + + # Run optional resource hook + resource.after_created + + run_context.resource_collection.insert(resource) + resource + end + end + + end + end +end |