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File Manager

Path: /opt/chef/embedded/lib/ruby/gems/2.7.0/gems/chef-16.3.45/lib/chef/

Viewing File: resource_inspector.rb

# 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.
#

require_relative "cookbook_loader"
require_relative "cookbook/file_vendor"
require_relative "cookbook/file_system_file_vendor"
require_relative "resource/lwrp_base"
require_relative "run_context"
require_relative "node"
require_relative "resources"
require_relative "json_compat"

module ResourceInspector
  def self.get_default(default)
    if default.is_a?(Chef::DelayedEvaluator)
      # ideally we'd get the block we pass to `lazy`, but the best we can do
      # is to get the source location, which then results in reparsing the source
      # code for the resource ourselves and just no
      "lazy default"
    else
      default.is_a?(Symbol) ? default.inspect : default # inspect properly returns symbols
    end
  end

  def self.extract_resource(resource, complete = false)
    data = {}
    data[:description] = resource.description
    # data[:deprecated] = resource.deprecated || false
    data[:default_action] = resource.default_action
    data[:actions] = resource.allowed_actions
    data[:examples] = resource.examples
    data[:introduced] = resource.introduced
    data[:preview] = resource.preview_resource

    properties = unless complete
                   resource.properties.reject { |_, k| k.options[:declared_in] == Chef::Resource || k.options[:skip_docs] }
                 else
                   resource.properties.reject { |_, k| k.options[:skip_docs] }
                 end

    data[:properties] = properties.each_with_object([]) do |(n, k), acc|
      opts = k.options
      acc << { name: n, description: opts[:description],
               introduced: opts[:introduced], is: opts[:is],
               deprecated: opts[:deprecated] || false,
               required: opts[:required] || false,
               default: opts[:default_description] || get_default(opts[:default]),
               name_property: opts[:name_property] || false,
               equal_to: sort_equal_to(opts[:equal_to]) }
    end
    data
  end

  def self.sort_equal_to(equal_to)
    Array(equal_to).sort.map(&:inspect)
  rescue ArgumentError
    Array(equal_to).map(&:inspect)
  end

  def self.extract_cookbook(path, complete)
    path = File.expand_path(path)
    dir, name = File.split(path)
    Chef::Cookbook::FileVendor.fetch_from_disk(path)
    loader = Chef::CookbookLoader.new(dir)
    cookbook = loader.load_cookbook(name)
    resources = cookbook.files_for(:resources)

    resources.each_with_object({}) do |r, res|
      pth = r["full_path"]
      cur = Chef::Resource::LWRPBase.build_from_file(name, pth, Chef::RunContext.new(Chef::Node.new, nil, nil))
      res[cur.resource_name] = extract_resource(cur, complete)
    end
  end

  # If we're given no resources, dump all of Chef's built ins
  # otherwise, if we have a path then extract all the resources from the cookbook
  # or else do a list of built in resources
  #
  # @param arguments [Array, String] One of more paths to a cookbook or a resource file to inspect
  # @param complete [TrueClass, FalseClass] Whether to show properties defined in the base Resource class
  # @return [String] JSON formatting of all resources
  def self.inspect(arguments = [], complete: false)
    output = if arguments.empty?
               ObjectSpace.each_object(Class).select { |k| k < Chef::Resource }.each_with_object({}) { |klass, acc| acc[klass.resource_name] = extract_resource(klass) }
             else
               Array(arguments).each_with_object({}) do |arg, acc|
                 if File.directory?(arg)
                   extract_cookbook(arg, complete).each { |k, v| acc[k] = v }
                 else
                   r = Chef::ResourceResolver.resolve(arg.to_sym)
                   acc[r.resource_name] = extract_resource(r, complete)
                 end
               end
             end

    Chef::JSONCompat.to_json_pretty(output)
  end

  def self.start
    puts inspect(ARGV, complete: true)
  end

end