method

add_option

v1_9_3_392 - Show latest stable - Class: Gem::Command

add_option(*opts)

public

Add a command-line option and handler to the command.

See OptionParser#make_switch for an explanation of opts.

handler will be called with two values, the value of the argument and the options hash.

If the first argument of add_option is a Symbol, it’s used to group options in output. See `gem help list` for an example.

# File lib/rubygems/command.rb, line 305
  def add_option(*opts, &handler) # :yields: value, options
    group_name = Symbol === opts.first ? opts.shift : :options

    @option_groups[group_name] << [opts, handler]
  end

add_option

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