Find most recently modified ( last modified) file or directory using Ruby's FileUtils. Extends FileUtils

gistfile1.rb

module FileUtils
  def sorted_by_modified_files(path='.',extension_filter = "")
    Dir.open(path).entries.map  do |f|
        [f,File.mtime(File.join(path,f))]
    end.sort_by do |a|
      a[1]
    end.delete_if do |a|
      File.stat(File.join(path,a[0])).directory? or 
        a[0] == '.' or a[0] == '..' or a[0].match(/#{extension_filter}$/).nil?
    end
  end
 
  def sorted_by_modified_dirs(path='.')
    Dir.open(path).entries.map  do |f|
        [f,File.mtime(File.join(path,f))]
    end.sort_by do |a|
      a[1]
    end.delete_if do |a|
     !(File.stat(File.join(path,a[0])).directory?) or a[0] == '.' or a[0] == '..'
    end
  end
 
  def last_modified_file(path='.',extension_filter = "")
    sorted_by_modified_files(path, extension_filter).last[0]
  end
 
  def last_modified_dir(path='.')
    sorted_by_modified_dirs(path).last[0]
  end
end
 
include FileUtils