gistfile1.txt

<?php

  /**
   * Prepares one or more servers for deployment.
   * It is safe to run this task on servers that have already been set up; it
   * will not destroy any deployed revisions or data.
   *
   * @command
   */
  function setup() {
    $dirs = array($this->releases_path, $this->shared_path);

    // $this->release_path has the same value across all sites invoked in this process,
    // because the foreach in run() know about site context only.

    $dirs_str = implode(' ', $dirs);
    $this->run('mkdir -p ' . $dirs_str . ' && chmod g+w ' . $dirs_str);
  }