function google_appliance_locate_root in Google Search Appliance 7

Same name and namespace in other branches

1. 8 src/Service/Click.php \google_appliance_locate_root()

Exhaustive depth-first search to try and locate the Drupal root directory.

Parameters

$start_path: Search start path. Defaults to current working directory.

Return value

A path to Drupal root, or FALSE if not found.

See also

drush_locate_root()

1 call to google_appliance_locate_root()

google_appliance.callback.click.php in ./google_appliance.callback.click.php

The callback for the Google Appliance module's /click service.

File

./google_appliance.callback.click.php, line 58

The callback for the Google Appliance module's /click service.

Code

function google_appliance_locate_root($start_path = NULL) {
  $drupal_root = FALSE;
  if (empty($start_path)) {
    $parts = parse_url($_SERVER['REQUEST_URI']);
    $start_path = $_SERVER['DOCUMENT_ROOT'] . $parts['path'];
  }
  foreach (array(
    TRUE,
    FALSE,
  ) as $follow_symlinks) {
    $path = $start_path;
    if ($follow_symlinks && is_link($path)) {
      $path = realpath($path);
    }

    // Check the start path.
    if (google_appliance_valid_drupal_root($path)) {
      $drupal_root = $path;
      break;
    }
    else {

      // Move up dir by dir and check each.
      while ($path = _google_appliance_shift_path_up($path)) {
        if ($follow_symlinks && is_link($path)) {
          $path = realpath($path);
        }
        if (google_appliance_valid_drupal_root($path)) {
          $drupal_root = $path;
          break 2;
        }
      }
    }
  }
  return $drupal_root;
}