Module: Pawnee::Base::Roles::ClassMethods

Defined in:
lib/pawnee/pawnee/roles.rb

Instance Method Summary collapse

Instance Method Details

#class_role ⇒ Object 



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# File 'lib/pawnee/pawnee/roles.rb', line 14

def class_role
  @role.to_s
end

#invoke_roles(task_name, roles, options = {}) ⇒ Object

Invokes all recipes that implement the passed in role



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# File 'lib/pawnee/pawnee/roles.rb', line 61

def invoke_roles(task_name, roles, options={})   
  role_classes = self.recipe_classes_with_roles(roles)

  # Run the taks on each role class
  role_classes.each do |recipe_class|
    # This class matches the role, so we should run it
    recipe = recipe_class.new([], options)

    task = recipe_class.tasks[task_name.to_s]
    recipe.invoke_task(task)
    
    # Copy back and updated options
    options = recipe.options
  end
end

#ordered_recipes ⇒ Object

Returns the recipe classes in order based on the Gemfile order



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# File 'lib/pawnee/pawnee/roles.rb', line 19

def ordered_recipes
  return @ordered_recipes if @ordered_recipes
  names = Bundler.load.dependencies.map(&:name)

  # Setup a hash with the recipe name and the recipe class
  recipe_pool = recipes.dup.inject({}) {|memo,recipe| memo[recipe.gem_name] = recipe ; memo }

  # Go through the gems in the order they are in the Gemfile, then
  # add them to the ordered list
  @ordered_recipes = []
  names.each do |name|
    if recipe_pool[name]
      @ordered_recipes << recipe_pool[name]
      recipe_pool.delete(name)
    end
  end

  # Add the remaining recipes (load them after everything else)
  @ordered_recipes += recipe_pool.values

  return @ordered_recipes
end

#recipe_classes_with_roles(roles) ⇒ Object

Returns the list of classes that match the current list of roles in the correct run order



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# File 'lib/pawnee/pawnee/roles.rb', line 44

def recipe_classes_with_roles(roles)
  # Check to make sure some recipes have been added
  if ordered_recipes.size == 0
    raise Thor::InvocationError, 'no recipes have been defined'
  end
  if (roles.is_a?(Array) && roles.size == 0) || roles == :all
    # Use all classes
    role_classes = ordered_recipes
  else
    # Remove classes that don't fit the roles being used
    role_classes = ordered_recipes.reject do |recipe_class|
      ![roles].flatten.map(&:to_s).include?(recipe_class.class_role)
    end
  end        
end

#role(role_name) ⇒ Object

Assigns the role for this class



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# File 'lib/pawnee/pawnee/roles.rb', line 10

def role(role_name)
  @role = role_name
end