/**
 * Tries to create the directories of the given path
 * if they do not exist already.
 */
this.mkpath = function(path, mode) {
  var parts = path.split('/');
 
  if (!parts || parts.length == 0)
    return;
    
  mode = mode || 0750;
  
  var current_path = "";
  
  parts.forEach(function(part) {
    if (!part || part.length == 0)
      return;
 
    current_path += "/" + part;
 
    try {
      if (posix.stat(current_path).wait().isDirectory())
        return;
    } catch (e) {
      try {
        posix.mkdir(current_path, mode).wait();
        var stats = posix.stat(current_path).wait();
      } catch (e) {
      }
 
      if (!stats || !stats.isDirectory())
        throw "failed to mkpath: current path is: " + current_path;
    }
  });
}