class Rclopts::RequiredArgOptionParser

Public Class Methods

new() click to toggle source
Calls superclass method
# File lib/rclopts/required_arg_option_parser.rb, line 9
def initialize
  @required_arg_names = Set.new
  super
end

Public Instance Methods

on(*args, &block) click to toggle source
Calls superclass method
# File lib/rclopts/required_arg_option_parser.rb, line 32
def on(*args, &block)
  super *args do |value|
    block.call(@options, value)
  end
end
on_required(*args, &block) click to toggle source
# File lib/rclopts/required_arg_option_parser.rb, line 14
def on_required(*args, &block)
  arg_name = nil
  args.each do |arg|
    if arg =~ /^((--\w+)(-\w+)*)/
      arg_name = $1
      break
    end
  end
  raise ArgumentError.new('Could not determine argument name') unless arg_name

  @required_arg_names << arg_name

  on *args do |options, value|
    @missing_arg_names.delete arg_name
    block.call(options, value)
  end
end
on_tail(*args, &block) click to toggle source
Calls superclass method
# File lib/rclopts/required_arg_option_parser.rb, line 38
def on_tail(*args, &block)
  super *args do
    block.call(@options)
  end
end
process_args(args) click to toggle source
# File lib/rclopts/required_arg_option_parser.rb, line 44
def process_args(args)
  @missing_arg_names = @required_arg_names.clone
  @options = OpenStruct.new
  free_args = args.clone

  begin
    parse!(free_args)
  rescue OptionParser::InvalidOption, OptionParser::MissingArgument
    message = $!.to_s + "\n\n" + self.to_s
    raise RequiredArgOptionParserError.new(message)
  end

  if !@missing_arg_names.empty?
    message = "missing required option: #{@missing_arg_names.to_a.sort.join(', ')}\n\n" + self.to_s
    raise RequiredArgOptionParserError.new(message)
  end

  [@options, free_args]
end