# File lib/commands/plugin/commands.rb, line 184
    def options
      OptionParser.new do |o|
        o.set_summary_indent('  ')
        o.banner =    "Usage: #{@base_command.script_name} sources [OPTIONS] [PATTERN]"
        o.define_head "List configured plugin repositories."
        o.separator   ""        
        o.separator   "Options:"
        o.separator   ""
        o.on(         "-c", "--check", 
                      "Report status of repository.") { |@sources| } # TODO Implement
        o.on(         "-r", "--refresh", 
                      "Refresh the source cache with the list of plugins available in each repository.") { refresh }
      end
    end