Class: CMDB::Commands::Help

Inherits:
Object
  • Object
show all
Defined in:
lib/cmdb/commands/help.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(interface, command) ⇒ Help

Returns a new instance of Help.



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# File 'lib/cmdb/commands/help.rb', line 9

def initialize(interface, command)
  @cmdb = interface
  @command = command
end

Class Method Details

.create(interface) ⇒ Object 



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# File 'lib/cmdb/commands/help.rb', line 5

def self.create(interface)
  new(interface, ARGV.first)
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/cmdb/commands/help.rb', line 14

def run
  if @command.nil? || @command.empty?
    # Same as "--help"
    raise Trollop::HelpNeeded
  end

  # Find the command the user was talking about and print some help
  konst = CMDB::Commands.constants.detect { |konst| konst.to_s.downcase == @command }
  if konst
    klass = CMDB::Commands.const_get(konst)
    ARGV.clear ; ARGV.push('--help')
    klass.create(@cmdb)
  else
    CMDB.log.fatal "CMDB: Unknown command '#{@command}'; try 'cmdb --help' for a list of commands"
    exit 1
  end
end