Class: Minitar::CLI::Command::Help

Inherits:
Minitar::CLI::Command
  • Object
show all
Defined in:
lib/minitar/cli/command/help.rb

Overview

Help command. This will be replaced in a future version by one of the better-executed CLI application frameworks like GLI, after Ruby 1.8 and 1.9 support have been dropped.

Constant Summary collapse

COMMANDS = 
<<-EOS
The commands known to minitar are:

  minitar create          Creates a new tarfile.
  minitar extract         Extracts files from a tarfile.
  minitar list            Lists files in the tarfile.

All commands accept the options --verbose and --progress, which are
mutually exclusive. In "minitar list", --progress means the same as
--verbose.

--verbose, -V     Performs the requested command verbosely.
--progress, -P    Shows a progress bar, if appropriate, for the action
                  being performed.

EOS
BASIC = 
<<-EOS
This is a basic help message containing pointers to more information on
how to use this command-line tool. Try:

  minitar help commands       list all 'minitar' commands
  minitar help <COMMAND>      show help on <COMMAND>
                                (e.g., 'minitar help create')
EOS

Instance Method Summary collapse

Instance Method Details

#call(args, _opts = {}) ⇒ Object 



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# File 'lib/minitar/cli/command/help.rb', line 37

def call(args, _opts = {})
  help_on = args.shift

  if commander.command?(help_on)
    ioe[:output] << commander[help_on].help
  elsif help_on == "commands"
    ioe[:output] << COMMANDS
  else
    unless help_on.nil? || help_on.empty?
      ioe[:output] << "Unknown command: #{help_on}\n"
    end
    ioe[:output] << help
  end

  0
end

#help ⇒ Object 



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# File 'lib/minitar/cli/command/help.rb', line 54

def help
  BASIC
end

#name ⇒ Object 



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# File 'lib/minitar/cli/command/help.rb', line 7

def name
  "help"
end