Notifier::Command (Core feature)

notify_by Command do |cmd|
  cmd.on_success = true
  cmd.on_warning = true
  cmd.on_failure = true

  # Command to execute
  cmd.command = 'notify-send'

  # Arguments to pass to the command.
  #
  # Must be an array of strings or callable objects.
  #
  # Callables will be invoked with #call(model, status),
  # and the return value used as the argument.
  #
  # In strings you can use the following placeholders:
  #
  # %l - Model label
  # %t - Model trigger
  # %s - Status (success/failure/warning)
  # %v - Status verb (succeeded/failed/succeeded with warnings)
  #
  # All placeholders can be used with uppercase letters to capitalize
  # the value.
  #
  # Defaults to ["%L %v"]
  #
  # cmd.args = ["Backup %L", "%V"]
end