class RHC::CommandRunner

# File lib/rhc/command_runner.rb, line 70
def create_default_commands
  command :help do |c|
    c.syntax = 'rhc help <command>'
    c.description = 'Display global or <command> help documentation.'
    c.when_called do |args, options|
      if args.empty?
        say help_formatter.render
      else
        command = command args.join(' ')
        begin
          require_valid_command command
        rescue InvalidCommandError => e
          RHC::Helpers.error "The command '#{program :name} #{provided_arguments.join(' ')}' is not recognized.\n"
          say "See '#{program :name} help' for a list of valid commands."
          next
        end

        help_bindings = CommandHelpBindings.new command, commands, Commander::Runner.instance.options
        say help_formatter.render_command help_bindings
      end
    end
  end
end

# File lib/rhc/command_runner.rb, line 63
def global_option(*args, &block)
  opts = args.pop if Hash === args.last
  super(*args, &block).tap do |options|
    options.last.merge!(opts) if opts
  end
end

# File lib/rhc/command_runner.rb, line 59
def provided_arguments
  @args[0, @args.find_index { |arg| arg.start_with?('-') } || @args.length]
end

# File lib/rhc/command_runner.rb, line 10
def run!
  trace = false
  require_program :version, :description

  trap('INT') { abort program(:int_message) } if program(:int_message)
  trap('INT') { program(:int_block).call } if program(:int_block)

  global_option('-h', '--help', 'Display help documentation') do
    args = @args - %w[-h --help]
    command(:help).run(*args)
    return
  end
  global_option('-v', '--version', 'Display version information') { say version; return }
  global_option('-t', '--trace', 'Display backtrace when an error occurs') { trace = true }

  parse_global_options
  remove_global_options options, @args

  unless trace
    begin
      run_active_command
    rescue InvalidCommandError => e
      if provided_arguments.empty?
        say RHC::HelpFormatter.new(self).render
      else
        RHC::Helpers.error "The command '#{program :name} #{provided_arguments.join(' ')}' is not recognized.\n"
        say "See '#{program :name} help' for a list of valid commands."
      end
      1
    rescue            ArgumentError,
      OptionParser::InvalidOption,
      OptionParser::InvalidArgument,
      OptionParser::MissingArgument => e

      help_bindings = CommandHelpBindings.new(active_command, commands, Commander::Runner.instance.options)
      usage = RHC::HelpFormatter.new(self).render_command(help_bindings)
      RHC::Helpers.error e.message
      say "\n#{usage}"
      1
    rescue RHC::Exception, RHC::Rest::Exception => e
      RHC::Helpers.error e.message
      e.code.nil? ? 128 : e.code
    end
  else
    run_active_command
  end
end

# File lib/rhc/command_runner.rb, line 4
def valid_command_names_from *args
  arg_string = args.delete_if { |value| value =~ %r^-/ }.join ' '
  commands.keys.find_all { |name| name if %r^#{name}\b/.match arg_string }
end