Load File from parent directory

Question

I'm working with Ruby 1.8 and I have script that I want to call but it's in a parent folder. Below is the structure:

maindir/
neededscript.rb
  subdir/
    subdir2/
      myscript.rb

How can I require neededscript.rb from inside myscript.rb?

Answer 1

This is what I've done instead:

File.expand_path("../../neededsript.rb",File.dirname(__FILE__))

Answer 2

In Ruby >=1.9 you can use the require_relative method

require_relative complements the builtin method require by allowing you to load a file that is relative to the file containing the require_relative statement.

require_relative '../../neededscript.rb'

Answer 3

You can also add the path to the ruby libs path by adding these lines to myscript.rb before doing the require

binpath = File.dirname( __FILE__ )
$:.unshift File.expand_path( File.join( binpath, ".." ) )