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#--
# Author:: Adam Jacob (<adam@chef.io>)
# Author:: Christopher Walters (<cw@chef.io>)
# Copyright:: Copyright (c) Chef Software 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.
#
autoload :YAML, "yaml"
require_relative "dsl/recipe"
require_relative "mixin/from_file"
require_relative "mixin/deprecation"
class Chef
# == Chef::Recipe
# A Recipe object is the context in which Chef recipes are evaluated.
class Recipe
attr_accessor :cookbook_name, :recipe_name, :recipe, :params, :run_context
include Chef::DSL::Recipe
include Chef::Mixin::FromFile
include Chef::Mixin::Deprecation
# Parses a potentially fully-qualified recipe name into its
# cookbook name and recipe short name.
#
# For example:
# "aws::elastic_ip" returns [:aws, "elastic_ip"]
# "aws" returns [:aws, "default"]
# "::elastic_ip" returns [ current_cookbook, "elastic_ip" ]
#--
# TODO: Duplicates functionality of RunListItem
def self.parse_recipe_name(recipe_name, current_cookbook: nil)
case recipe_name
when /(.+?)::(.+)/
[ $1.to_sym, $2 ]
when /^::(.+)/
raise "current_cookbook is nil, cannot resolve #{recipe_name}" if current_cookbook.nil?
[ current_cookbook.to_sym, $1 ]
else
[ recipe_name.to_sym, "default" ]
end
end
def initialize(cookbook_name, recipe_name, run_context)
@cookbook_name = cookbook_name
@recipe_name = recipe_name
@run_context = run_context
# TODO: 5/19/2010 cw/tim: determine whether this can be removed
@params = {}
end
# Used in DSL mixins
def node
run_context.node
end
# This was moved to Chef::Node#tag, redirecting here for compatibility
def tag(*tags)
run_context.node.tag(*tags)
end
# Removes the list of tags from the node.
#
# === Parameters
# tags<Array>:: A list of tags
#
# === Returns
# tags<Array>:: The current list of run_context.node.tags
def untag(*tags)
tags.each do |tag|
run_context.node.tags.delete(tag)
end
end
def from_yaml_file(filename)
self.source_file = filename
if File.file?(filename) && File.readable?(filename)
yaml_contents = IO.read(filename)
if ::YAML.load_stream(yaml_contents).length > 1
raise ArgumentError, "YAML recipe '#{filename}' contains multiple documents, only one is supported"
end
from_yaml(yaml_contents)
else
raise IOError, "Cannot open or read file '#{filename}'!"
end
end
def from_yaml(string)
res = ::YAML.safe_load(string)
unless res.is_a?(Hash) && res.key?("resources")
raise ArgumentError, "YAML recipe '#{source_file}' must contain a top-level 'resources' hash (YAML sequence), i.e. 'resources:'"
end
from_hash(res)
end
def from_hash(hash)
hash["resources"].each do |rhash|
type = rhash.delete("type").to_sym
name = rhash.delete("name")
res = declare_resource(type, name)
rhash.each do |key, value|
# FIXME?: we probably need a way to instance_exec a string that contains block code against the property?
res.send(key, value)
end
end
end
def to_s
"cookbook: #{cookbook_name ? cookbook_name : "(none)"}, recipe: #{recipe_name ? recipe_name : "(none)"} "
end
def inspect
to_s
end
end
end
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