recursive_mkdir.rb

recursive_mkdir.rb

def self.mkdir_p(path)
  path_acc = ''
  path = File.join Dir.pwd, path if path[0] != ?/
  path.split(File::SEPARATOR).grep(/./).collect do |name|
    path_acc += File::SEPARATOR+ name
  end.each do |dir|
    begin Dir.mkdir(dir) rescue Errno::EEXIST end
  end
end

Python version:

def makedirs(path):
    """
    Make directories recursively.

    A wrapper for os.makedirs that won't raise OSError for existing directories
    Basically is like `mkdir -p'
    """
    try:
        os.makedirs(path)
    except OSError as e:
        if e.errno == errno.EEXIST:
            # Directory already exists
            pass
        else:
            raise

OK, so in Python it's embedded in the standard library, almost as is :)

Ah ah in Ruby too.
Well that was fun to write anyway.

require 'ftools'
File.makedirs ("/path/that/exists/or/not")

Indeed. :)