Class: Fuelcell::Action::ArgsManager

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/fuelcell/action/args_manager.rb

Overview

Used by the Command to manage adding args from its dsl. It is also used during arg parsing to find args, or check if any required args have been missed

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ArgsManager

Returns a new instance of ArgsManager.



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# File 'lib/fuelcell/action/args_manager.rb', line 12

def initialize
  @args = []
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/fuelcell/action/args_manager.rb', line 7

def args
  @args
end

Instance Method Details

#add(arg, config = {}) ⇒ Object Also known as: arg 



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# File 'lib/fuelcell/action/args_manager.rb', line 36

def add(arg, config = {})
  arg = create(arg, config) if arg.is_a?(String)
  args.each do |item|
    if item.name == arg.name
      fail "can not add arg: duplicate exists with name #{arg.name}"
    end
  end
  args << arg
end

#args? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fuelcell/action/args_manager.rb', line 16

def args?
  !empty?
end

#create(name, config = {}) ⇒ Object 



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# File 'lib/fuelcell/action/args_manager.rb', line 61

def create(name, config = {})
  ArgDefinition.new(name, config)
end

#find(name) ⇒ Object Also known as: find_arg, [] 



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# File 'lib/fuelcell/action/args_manager.rb', line 53

def find(name)
  target = false
  args.each {|arg| target = arg if arg.name == name }
  target
end

#missing(names) {|list| ... } ⇒ Object

Yields:

  • (list) 


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# File 'lib/fuelcell/action/args_manager.rb', line 25

def missing(names)
  list = []
  args.select do |arg|
    list << arg if arg.required? && !names.include?(arg.name)
  end
  return [] if list.empty?

  yield list if block_given?
  list
end

#remove(name) ⇒ Object 



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# File 'lib/fuelcell/action/args_manager.rb', line 47

def remove(name)
  # looks like an arg definition so lets use it's name
  name = name.name if name.respond_to?(:name)
  args.delete_if {|arg| arg.name == name}
end

#required ⇒ Object Also known as: required_args 



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# File 'lib/fuelcell/action/args_manager.rb', line 20

def required
  args.select { |arg| arg.required? }
end