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#
# Author:: Adam Jacob (<adam@opscode.com>)
# Author:: Nuo Yan (<nuo@opscode.com>)
# Author:: Christopher Walters (<cw@opscode.com>)
# Copyright:: Copyright (c) 2008 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'
require 'chef/node'
require 'chef/resource_definition_list'
require 'chef/recipe'
require 'chef/mixin/convert_to_class_name'
class Chef
class Cookbook
include Chef::Mixin::ConvertToClassName
attr_accessor :definition_files, :template_files, :remote_files,
:lib_files, :resource_files, :provider_files, :name
attr_reader :recipe_files, :attribute_files
# Creates a new Chef::Cookbook object.
#
# === Returns
# object<Chef::Cookbook>:: Duh. :)
def initialize(name)
@name = name
@attribute_files = Array.new
@attribute_names = Hash.new
@definition_files = Array.new
@template_files = Array.new
@remote_files = Array.new
@recipe_files = Array.new
@recipe_names = Hash.new
@lib_files = Array.new
@resource_files = Array.new
@provider_files = Array.new
end
# Loads all the library files in this cookbook via require.
#
# === Returns
# true:: Always returns true
def load_libraries
@lib_files.each do |file|
Chef::Log.debug("Loading cookbook #{name} library file: #{file}")
require file
end
true
end
# Loads all the attribute files in this cookbook within a particular <Chef::Node>.
#
# === Parameters
# node<Chef::Node>:: The Chef::Node to apply the attributes to
#
# === Returns
# node<Chef::Node>:: The updated Chef::Node object
#
# === Raises
# <ArgumentError>:: If the argument is not a kind_of? <Chef::Node>
def load_attributes(node)
@attribute_files.each do |file|
load_attribute_file(file, node)
end
node
end
def load_attribute_file(file, node)
Chef::Log.debug("Loading attributes from #{file}")
node.from_file(file)
end
def load_attribute(name, node)
attr_name = shorten_name(name)
file = @attribute_files[@attribute_names[attr_name]]
load_attribute_file(file, node)
node
end
# Loads all the resource definitions in this cookbook.
#
# === Returns
# definitions<Hash>: A hash of <Chef::ResourceDefinition> objects, keyed by name.
def load_definitions
results = Hash.new
@definition_files.each do |file|
Chef::Log.debug("Loading cookbook #{name}'s definitions from #{file}")
resourcelist = Chef::ResourceDefinitionList.new
resourcelist.from_file(file)
results.merge!(resourcelist.defines) do |key, oldval, newval|
Chef::Log.info("Overriding duplicate definition #{key}, new found in #{file}")
newval
end
end
results
end
# Loads all the resources in this cookbook.
#
# === Returns
# true:: Always returns true
def load_resources
@resource_files.each do |file|
Chef::Log.debug("Loading cookbook #{name}'s resources from #{file}")
Chef::Resource.build_from_file(name, file)
end
end
# Loads all the providers in this cookbook.
#
# === Returns
# true:: Always returns true
def load_providers
@provider_files.each do |file|
Chef::Log.debug("Loading cookbook #{name}'s providers from #{file}")
Chef::Provider.build_from_file(name, file)
end
end
def recipe_files=(*args)
@recipe_files, @recipe_names = set_with_names(args.flatten)
@recipe_files
end
def attribute_files=(*args)
@attribute_files, @attribute_names = set_with_names(args.flatten)
@attribute_files
end
def recipe?(name)
lookup_name = name
if name =~ /(.+)::(.+)/
cookbook_name = $1
lookup_name = $2
return false unless cookbook_name == @name
end
@recipe_names.has_key?(lookup_name)
end
def recipes
results = Array.new
@recipe_names.each_key do |rname|
results << "#{@name}::#{rname}"
end
results
end
def load_recipe(name, node, collection=nil, definitions=nil, cookbook_loader=nil)
cookbook_name = @name
recipe_name = shorten_name(name)
unless @recipe_names.has_key?(recipe_name)
raise ArgumentError, "Cannot find a recipe matching #{recipe_name} in cookbook #{@name}"
end
Chef::Log.debug("Found recipe #{recipe_name} in cookbook #{cookbook_name}") if Chef::Log.debug?
recipe = Chef::Recipe.new(cookbook_name, recipe_name, node,
collection, definitions, cookbook_loader)
recipe.from_file(@recipe_files[@recipe_names[recipe_name]])
recipe
end
private
def shorten_name(name)
short_name = nil
nmatch = name.match(/^(.+?)::(.+)$/)
short_name = nmatch ? nmatch[2] : name
end
def set_with_names(file_list)
files = file_list
names = Hash.new
files.each_index do |i|
file = files[i]
case file
when /(.+\/)(.+).rb$/
names[$2] = i
when /(.+).rb$/
names[$1] = i
else
names[file] = i
end
end
[ files, names ]
end
end
end
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