1 installer.manager.inc installer_manager_file_get($url)

Copies a file from the specified URL to the temporary directory for updates.

Returns the local path if the file has already been downloaded.


$url: The URL of the file on the server.

Return value

string: Path to local file.

Related topics


core/modules/installer/installer.manager.inc, line 1051
Administrative screens and processing functions of the Installer module.


function installer_manager_file_get($url) {
  $parsed_url = parse_url($url);
  $remote_schemes = array('http', 'https', 'ftp', 'ftps', 'smb', 'nfs');
  if (!in_array($parsed_url['scheme'], $remote_schemes)) {
    // This is a local file, just return the path.
    return backdrop_realpath($url);

  // Check the cache and download the file if needed.
  $cache_directory = _installer_manager_cache_directory();
  $local = $cache_directory . '/' . backdrop_basename($parsed_url['path']);

  if (!file_exists($local)) {
    return system_retrieve_file($url, $local, FALSE, FILE_EXISTS_REPLACE);
  else {
    return $local;