Module: Kitchen::Util

Defined in:
lib/kitchen/binding/core_ext/util.rb

Overview

Stateless utility methods used in different contexts. Essentially a mini PassiveSupport library.

Author:

Class Method Summary collapse

Class Method Details

.wrap_command(cmd) ⇒ String

Generates a command (or series of commands) wrapped so that it can be invoked on a remote instance or locally.

This method uses the Bourne shell (/bin/sh) to maximize the chance of cross platform portability on Unixlike systems.

Parameters:

  • the (String) —

    command

Returns:

  • (String) —

    a wrapped command string



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# File 'lib/kitchen/binding/core_ext/util.rb', line 110

def self.wrap_command(cmd)
  cmd = "false" if cmd.nil?
  cmd = "true" if cmd.to_s.empty?
  cmd = cmd.sub(/\n\Z/, "") if cmd =~ /\n\Z/

  "sh -c '\n#{cmd}\n'"
end