Method: Thor#help

Defined in:
lib/thor.rb

#help(*args) ⇒ Object 



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# File 'lib/thor.rb', line 882

def help(*args)
  is_subcommand = case args[-1]
  when true, false
    args.pop
  else
    false
  end
  
  # Will be the {String} command (get help on that command)
  # or `nil` (get help on this class)
  command = args.shift
  
  # Possibly empty array of string subcommands from something like
  # 
  #     myexe help sub cmd
  # 
  # in which case it would end up being `['cmd']` and we actually are just
  # passing through and want to get help on the `cmd` subcommand.
  # 
  subcommands = args
  
  logger.trace "#help",
    args: args,
    command: command,
    is_subcommand: is_subcommand,
    subcommands: subcommands
  
  if command
    if self.class.subcommands.include? command
      if subcommands.empty?
        # Get help on a subcommand *class*
        self.class.subcommand_classes[command].help(shell, true)
      else
        # Atli addition - handle things like `myexe help sub cmd`
        # Want help on something (class or command) further down the line
        invoke  self.class.subcommand_classes[command],
                ['help', *subcommands],
                {},
                {:invoked_via_subcommand => true, :class_options => options}
      end
    else
      # Want help on a *command* of this class
      # 
      # Atli -  Now that we've modified {.command_help} to accept
      #         `subcommand`, pass it (it seems to have already been getting
      #         the correct value to here).
      self.class.command_help(shell, command, is_subcommand)
    end
  else
    # We want help on *this class itself* (list available commands)
    self.class.help(shell, is_subcommand)
  end
end