Class: Inspec::Plugin::V2::PluginBase

Inherits:
Object
  • Object
show all
Defined in:
lib/inspec/plugin/v2/plugin_base.rb

Overview

Base class for all plugins. Specific plugin types may inherit from this; but they must register with it.

Direct Known Subclasses

Inspec::Plugin::V2::PluginType::Mock

Constant Summary collapse

@@plugin_type_classes =

rubocop: disable Style/ClassVars

{}

Class Method Summary collapse

Class Method Details

.base_class_for_type(plugin_type_name) ⇒ Object

Determine the base class for a given plugin type

Parameters:

  • plugin_type_name (Symbol)


56
57
58
# File 'lib/inspec/plugin/v2/plugin_base.rb', line 56

def self.base_class_for_type(plugin_type_name)
  @@plugin_type_classes[plugin_type_name]
end

.plugin_name(name = nil) ⇒ Object

If no name provided, looks up a known plugin by class and returns the name.

DSL method to declare a plugin. Once this has been called, the plugin will certainly be registered (known) with the Registry, and is eligible to be activated. This mainly handles status annotation.

Parameters:

  • Name (Symbol)

    of the plugin. If a string is provided, it is converted to a Symbol.



72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
# File 'lib/inspec/plugin/v2/plugin_base.rb', line 72

def self.plugin_name(name = nil)
  reg = Inspec::Plugin::V2::Registry.instance
  return reg.find_status_by_class(self).name if name.nil?

  name = name.to_sym

  # Typically our status will already exist in the registry, from loading the
  # plugin.json. If we're being loaded, presumably entry_point,
  # installation_type, version
  # are known.
  unless reg.known_plugin?(name)
    # Under some testing situations, we may not pre-exist.
    status = Inspec::Plugin::V2::Status.new
    reg.register(name, status)
    status.entry_point = 'inline'
    status.installation_type = :mock_inline
  end

  status = reg[name]
  status.api_generation = 2
  status.plugin_class = self
  status.name = name

  name
end

.register_plugin_type(plugin_type_name, new_plugin_type_base_class = self) ⇒ Object

Inform the plugin system of a new plgin type. This has the following effects:

* enables Inspec.plugin(2, :your_type_here) to return the plugin
  type base class
* defines the DSL method with the same name as the plugin type.

Parameters:

  • plugin_type_name (Symbol)
  • the (Class)

    plugin type class, defaults to assuming inheritance



26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
# File 'lib/inspec/plugin/v2/plugin_base.rb', line 26

def self.register_plugin_type(plugin_type_name, new_plugin_type_base_class = self)
  new_dsl_method_name = plugin_type_name

  # This lets the Inspec.plugin(2,:your_plugin_type) work
  @@plugin_type_classes[plugin_type_name] = new_plugin_type_base_class

  # This part defines the DSL command to register a concrete plugin's implementation of a plugin type
  Inspec::Plugin::V2::PluginBase.define_singleton_method(new_dsl_method_name) do |hook_name, &hook_body|
    plugin_concrete_class = self

    # Verify class is registered (i.e. plugin_name has been called)
    status = registry.find_status_by_class(plugin_concrete_class)
    if status.nil?
      raise Inspec::Plugin::V2::LoadError, "You must call 'plugin_name' prior to calling #{plugin_type_name} for plugin class #{plugin_concrete_class}"
    end

    # Construct the Activator record
    activator = Inspec::Plugin::V2::Activator.new
    activator.plugin_name = plugin_concrete_class.plugin_name
    activator.plugin_type = plugin_type_name
    activator.activator_name = hook_name.to_sym
    activator.activation_proc = hook_body

    status.activators << activator
  end
end

.registryObject

The global registry.



14
15
16
# File 'lib/inspec/plugin/v2/plugin_base.rb', line 14

def self.registry
  Inspec::Plugin::V2::Registry.instance
end