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require "digest/md5"
require "hashie"
module ChefZero
class Mash < ::Hashie::Mash
disable_warnings
end
module ChefData
module CookbookData
class << self
def to_hash(cookbook, name, version = nil)
frozen = false
if cookbook.key?(:frozen)
frozen = cookbook[:frozen]
cookbook = cookbook.dup
cookbook.delete(:frozen)
end
result = files_from(cookbook)
recipe_names = result[:all_files].select do |file|
file[:name].start_with?("recipes/")
end.map do |recipe|
recipe_name = recipe[:name][0..-2]
recipe_name == "default" ? name : "#{name}::#{recipe_name}"
end
result[:metadata] = metadata_from(cookbook, name, version, recipe_names)
result[:name] = "#{name}-#{result[:metadata][:version]}"
result[:json_class] = "Chef::CookbookVersion"
result[:cookbook_name] = name
result[:version] = result[:metadata][:version]
result[:chef_type] = "cookbook_version"
result[:frozen?] = true if frozen
result
end
def metadata_from(directory, name, version, recipe_names)
metadata = PretendCookbookMetadata.new(PretendCookbook.new(name, recipe_names))
# If both .rb and .json exist, read .json
if has_child(directory, "metadata.json")
metadata.from_json(read_file(directory, "metadata.json"))
elsif has_child(directory, "metadata.rb")
begin
file = filename(directory, "metadata.rb") || "(#{name}/metadata.rb)"
metadata.instance_eval(read_file(directory, "metadata.rb"), file)
rescue
ChefZero::Log.error("Error loading cookbook #{name}: #{$!}\n #{$!.backtrace.join("\n ")}")
end
end
result = {}
metadata.to_hash.each_pair do |key, value|
result[key.to_sym] = value
end
result[:version] = version if version
result
end
private
def files_from(directory)
# TODO some support .rb only
result = load_files(directory)
set_specificity(result, :templates)
set_specificity(result, :files)
result = {
all_files: result,
}
result
end
def has_child(directory, name)
if directory.is_a?(Hash)
directory.key?(name)
else
directory.child(name).exists?
end
end
def read_file(directory, name)
if directory.is_a?(Hash)
directory[name]
else
directory.child(name).read
end
end
def filename(directory, name)
if directory.respond_to?(:file_path)
File.join(directory.file_path, name)
else
nil
end
end
def get_directory(directory, name)
if directory.is_a?(Hash)
directory[name].is_a?(Hash) ? directory[name] : nil
else
result = directory.child(name)
result.dir? ? result : nil
end
end
def list(directory)
if directory.is_a?(Hash)
directory.keys
else
directory.children.map(&:name)
end
end
def load_child_files(parent, key, recursive, part)
result = load_files(get_directory(parent, key), recursive, part)
result.each do |file|
file[:path] = "#{key}/#{file[:path]}"
end
result
end
def load_files(directory, recursive = true, part = nil)
result = []
if directory
list(directory).each do |child_name|
dir = get_directory(directory, child_name)
if dir
child_part = child_name if part.nil?
if recursive
result += load_child_files(directory, child_name, recursive, child_part)
end
else
result += load_file(read_file(directory, child_name), child_name, part)
end
end
end
result
end
def load_file(value, name, part = nil)
specific_name = part ? "#{part}/#{name}" : name
[{
name: specific_name,
path: name,
checksum: Digest::MD5.hexdigest(value),
specificity: "default",
}]
end
def set_specificity(files, type)
files.each do |file|
next unless file[:name].split("/")[0] == type.to_s
parts = file[:path].split("/")
file[:specificity] = if parts.size == 2
"default"
else
parts[1]
end
end
end
end
# Just enough cookbook to make a Metadata object
class PretendCookbook
def initialize(name, fully_qualified_recipe_names)
@name = name
@fully_qualified_recipe_names = fully_qualified_recipe_names
end
attr_reader :name, :fully_qualified_recipe_names
end
# Handles loading configuration values from a Chef config file
#
# @author Justin Campbell <justin.campbell@riotgames.com>
class PretendCookbookMetadata < Hash
# @param [String] path
def initialize(cookbook)
name(cookbook.name)
recipes(cookbook.fully_qualified_recipe_names)
%w{attributes grouping dependencies supports recommendations suggestions conflicting providing replacing recipes}.each do |hash_arg|
self[hash_arg.to_sym] = Mash.new
end
end
def from_json(json)
merge!(FFI_Yajl::Parser.parse(json))
end
private
def depends(cookbook, *version_constraints)
cookbook_arg(:dependencies, cookbook, version_constraints)
end
def supports(cookbook, *version_constraints)
cookbook_arg(:supports, cookbook, version_constraints)
end
def provides(cookbook, *version_constraints)
cookbook_arg(:providing, cookbook, version_constraints)
end
def gem(*opts)
self[:gems] ||= []
self[:gems] << opts
end
def recipe(recipe, description)
self[:recipes][recipe] = description
end
def attribute(name, options)
self[:attributes][name] = options
end
def cookbook_arg(key, cookbook, version_constraints)
self[key][cookbook] = version_constraints.first || ">= 0.0.0"
end
def method_missing(key, *values)
if values.nil?
self[key.to_sym]
else
if values.length > 1
store key.to_sym, values
else
store key.to_sym, values.first
end
end
end
end
end
end
CookbookData = ChefData::CookbookData
end
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