Method: Chef::Resource::LWRPBase.build_from_file

Defined in:
lib/chef/resource/lwrp_base.rb

.build_from_file(cookbook_name, filename, run_context) ⇒ Object 



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# File 'lib/chef/resource/lwrp_base.rb', line 45

def build_from_file(cookbook_name, filename, run_context)
  if LWRPBase.loaded_lwrps[filename]
    Chef::Log.trace("Custom resource #{filename} from cookbook #{cookbook_name} has already been loaded!  Skipping the reload.")
    return loaded_lwrps[filename]
  end

  resource_name = filename_to_qualified_string(cookbook_name, filename)

  resource_class = Class.new(self)
  resource_class.run_context = run_context
  resource_class.class_from_file(filename)

  # Make a useful string for the class (rather than <Class:312894723894>)
  resource_class.instance_eval do
    define_singleton_method(:to_s) do
      "Custom resource #{resource_name} from cookbook #{cookbook_name}"
    end
    define_singleton_method(:inspect) { to_s }
  end

  Chef::Log.trace("Loaded contents of #{filename} into resource #{resource_name} (#{resource_class})")

  # wire up the default resource name after the class is parsed only if we haven't declared one.
  # (this ordering is important for MapCollision deprecation warnings)
  resource_class.provides resource_name.to_sym unless Chef::ResourceResolver.includes_handler?(resource_name.to_sym, self)

  LWRPBase.loaded_lwrps[filename] = resource_class

  resource_class
end