class OptionParser

Add the ability to specify switches as required to OptionParser

Attributes

missing_switches[R]

An array of messages describing any missing required switches

Public Instance Methods

make_switch(opts, block = nil) click to toggle source

Wrapper for OptionParser::make_switch to allow for required switches

# File lib/qu/utils.rb, line 149
def make_switch(opts, block = nil)

  # Test if a switch is required
  required = opts.delete(:required)

  return_values = pickled_make_switch(opts, block)

  # Make sure required switches are given
  if required 
    short = return_values[1][0].nil? ? nil : "-#{return_values[1][0]}"
    long = return_values[2][0].nil? ? nil : "--#{return_values[2][0]}"
    
    if !(default_argv.include?(short) || default_argv.include?(long))
      @missing_switches ||= [] # Should be placed in initialize if incorporated into Ruby proper
    
      # Ugly and hard to read, should figure out a prettier way of doing this
      @missing_switches << "Missing switch: #{short if !short.nil?}#{" or " if !short.nil? && !long.nil?}#{long if !long.nil?}"
    end
  end
  
  return return_values
end
Also aliased as: pickled_make_switch
missing_switches?() click to toggle source

Convenience method to test if we’re missing any required switches

# File lib/qu/utils.rb, line 140
def missing_switches?
  !@missing_switches.nil?
end
pickled_make_switch(opts, block = nil)

Alias the OptionParser::make_switch function (instead of directly modifying it like I did in 0.1.0)

Alias for: make_switch