gistfile1.rb

require "fileutils"

module FileSystem

    def FileSystem.EnsurePath(path)
        if !Dir.exists?(path) then 
            FileUtils.mkdir_p(path)
        end
    end

    def FileSystem.DeleteDirectory(path)
        if Dir.exists?(path) then 
             FileUtils.rm_rf path
        end
    end

    def FileSystem.CopyFiles(source, target) 
        Dir.glob(source) do |name|
            FileUtils.cp(name, target)
        end    
    end
end