Class: Bolt::Task

Inherits:
Object
  • Object
show all
Defined in:
lib/bolt/task.rb,
lib/bolt/task/run.rb,
lib/bolt/task/puppet_server.rb

Direct Known Subclasses

PuppetServer

Defined Under Namespace

Modules: Run Classes: PuppetServer

Constant Summary collapse

METADATA_KEYS = 
%w[description extensions files implementations
input_method parameters private puppet_task_version
remote supports_noop].freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, metadata = {}, files = [], remote = false) ⇒ Task

name [String] name of the task files [Array<Hash>] where each entry includes ‘name` and `path` metadata [Hash] task metadata



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# File 'lib/bolt/task.rb', line 21

def initialize(name, metadata = {}, files = [], remote = false)
  @name = name
  @metadata = metadata
  @files = files
  @remote = remote
  @logger = Logging.logger[self]

  validate_metadata
end

Instance Attribute Details

#files ⇒ Object (readonly)

Returns the value of attribute files.



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# File 'lib/bolt/task.rb', line 16

def files
  @files
end

#metadata ⇒ Object (readonly)

Returns the value of attribute metadata.



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# File 'lib/bolt/task.rb', line 16

def metadata
  @metadata
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/bolt/task.rb', line 16

def name
  @name
end

#remote ⇒ Object (readonly)

Returns the value of attribute remote.



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# File 'lib/bolt/task.rb', line 16

def remote
  @remote
end

Class Method Details

.from_task_signature(task_sig) ⇒ Object 



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# File 'lib/bolt/task.rb', line 31

def self.from_task_signature(task_sig)
  hash = task_sig.task_hash
  new(hash['name'], hash.fetch('metadata', {}), hash.fetch('files', []))
end

Instance Method Details

#description ⇒ Object 



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# File 'lib/bolt/task.rb', line 40

def description
  metadata['description']
end

#eql?(other) ⇒ Boolean Also known as: ==

Returns:

  • (Boolean) 


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# File 'lib/bolt/task.rb', line 125

def eql?(other)
  self.class == other.class &&
    @name == other.name &&
    @metadata == other.metadata &&
    @files == other.files &&
    @remote == other.remote
end

#file_path(file_name) ⇒ Object

This provides a method we can override in subclasses if the ‘path’ needs to be fetched or computed.



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# File 'lib/bolt/task.rb', line 73

def file_path(file_name)
  file_map[file_name]['path']
end

#implementations ⇒ Object 



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# File 'lib/bolt/task.rb', line 77

def implementations
  metadata['implementations']
end

#module_name ⇒ Object 



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# File 'lib/bolt/task.rb', line 58

def module_name
  name.split('::').first
end

#parameter_defaults ⇒ Object 



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# File 'lib/bolt/task.rb', line 48

def parameter_defaults
  (parameters || {}).each_with_object({}) do |(name, param_spec), defaults|
    defaults[name] = param_spec['default'] if param_spec.key?('default')
  end
end

#parameters ⇒ Object 



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# File 'lib/bolt/task.rb', line 44

def parameters
  metadata['parameters']
end

#remote_instance ⇒ Object 



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# File 'lib/bolt/task.rb', line 36

def remote_instance
  self.class.new(@name, @metadata, @files, true)
end

#select_implementation(target, provided_features = []) ⇒ Object

Returns a hash of implementation name, path to executable, input method (if defined), and any additional files (name and path)



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# File 'lib/bolt/task.rb', line 83

def select_implementation(target, provided_features = [])
  impl = if (impls = implementations)
           available_features = target.feature_set + provided_features
           impl = impls.find do |imp|
             remote_impl = imp['remote']
             remote_impl = metadata['remote'] if remote_impl.nil?
             Set.new(imp['requirements']).subset?(available_features) && !!remote_impl == @remote
           end
           raise NoImplementationError.new(target, self) unless impl
           impl = impl.dup
           impl['path'] = file_path(impl['name'])
           impl.delete('requirements')
           impl
         else
           raise NoImplementationError.new(target, self) unless !!metadata['remote'] == @remote
           name = files.first['name']
           { 'name' => name, 'path' => file_path(name) }
         end

  inmethod = impl['input_method'] || metadata['input_method']
  impl['input_method'] = inmethod unless inmethod.nil?

  mfiles = impl.fetch('files', []) + metadata.fetch('files', [])
  dirnames, filenames = mfiles.partition { |file| file.end_with?('/') }
  impl['files'] = filenames.map do |file|
    path = file_path(file)
    raise "No file found for reference #{file}" if path.nil?
    { 'name' => file, 'path' => path }
  end

  unless dirnames.empty?
    files.each do |file|
      name = file['name']
      if dirnames.any? { |dirname| name.start_with?(dirname) }
        impl['files'] << { 'name' => name, 'path' => file_path(name) }
      end
    end
  end

  impl
end

#supports_noop ⇒ Object 



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# File 'lib/bolt/task.rb', line 54

def supports_noop
  metadata['supports_noop']
end

#tasks_dir ⇒ Object 



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# File 'lib/bolt/task.rb', line 62

def tasks_dir
  File.join(module_name, 'tasks')
end

#to_h ⇒ Object 



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# File 'lib/bolt/task.rb', line 135

def to_h
  {
    name: @name,
    files: @files,
    metadata: @metadata
  }
end

#validate_metadata ⇒ Object 



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# File 'lib/bolt/task.rb', line 143

def validate_metadata
  unknown_keys = metadata.keys - METADATA_KEYS

  if unknown_keys.any?
    msg = "Metadata for task '#{@name}' contains unknown keys: #{unknown_keys.join(', ')}."
    msg += " This could be a typo in the task metadata or may result in incorrect behavior."
    @logger.warn(msg)
  end
end