findShortestPath example

  public static function generateAutoload(IOInterface $io, $package_name, $web_root, $vendor) {
    $autoload_path = static::autoloadPath($package_name, $web_root);
    // Calculate the relative path from the webroot (location of the project     // autoload.php) to the vendor directory.     $fs = new Filesystem();
    $relative_autoload_path = $fs->findShortestPath($autoload_path->fullPath(), "$vendor/autoload.php");
    file_put_contents($autoload_path->fullPath(), static::autoLoadContents($relative_autoload_path));
    return new ScaffoldResult($autoload_path, TRUE);
  }

  /** * Determines whether or not the autoload file has been committed. * * @param \Composer\IO\IOInterface $io * IOInterface to write to. * @param string $package_name * The name of the package defining the autoload file (the root package). * @param string $web_root * The path to the web root. * * @return bool * True if autoload.php file exists and has been committed to the repository */