Manifest captures the actions a generator performs. Instantiate a manifest with an optional target object, hammer it with actions, then replay or rewind on the object of your choice.

Example: 

  manifest = Manifest.new { |m|
    m.make_directory '/foo'
    m.create_file '/foo/bar.txt'
  }
  manifest.replay(creator)
  manifest.rewind(destroyer)
Methods
Attributes
[R] target
Public Class methods
new(target = nil) {|self if block_given?| ...}

Take a default action target. Yield self if block given.

Source: show | on GitHub 

    # File railties/lib/rails_generator/manifest.rb, line 19
19:       def initialize(target = nil)
20:         @target, @actions = target, []
21:         yield self if block_given?
22:       end
Public Instance methods
erase()

Erase recorded actions.

Source: show | on GitHub 

    # File railties/lib/rails_generator/manifest.rb, line 40
40:       def erase
41:         @actions = []
42:       end
method_missing(action, *args, &block)

Record an action.

Source: show | on GitHub 

    # File railties/lib/rails_generator/manifest.rb, line 25
25:       def method_missing(action, *args, &block)
26:         @actions << [action, args, block]
27:       end
replay(target = nil)

Replay recorded actions.

Source: show | on GitHub 

    # File railties/lib/rails_generator/manifest.rb, line 30
30:       def replay(target = nil)
31:         send_actions(target || @target, @actions)
32:       end
rewind(target = nil)

Rewind recorded actions.

Source: show | on GitHub 

    # File railties/lib/rails_generator/manifest.rb, line 35
35:       def rewind(target = nil)
36:         send_actions(target || @target, @actions.reverse)
37:       end