Copies a file from the specified URL to the temporary directory for updates.
Returns the local path if the file has already been downloaded.
$url: The URL of the file on the server.
string Path to local file.
function update_manager_file_get($url) {
$parsed_url = parse_url($url);
$remote_schemes = array(
'http',
'https',
'ftp',
'ftps',
'smb',
'nfs',
);
if (!in_array($parsed_url['scheme'], $remote_schemes)) {
// This is a local file, just return the path.
return drupal_realpath($url);
}
// Check the cache and download the file if needed.
$cache_directory = _update_manager_cache_directory();
$local = $cache_directory . '/' . drupal_basename($parsed_url['path']);
if (!file_exists($local) || update_delete_file_if_stale($local)) {
return system_retrieve_file($url, $local, FALSE, FILE_EXISTS_REPLACE);
}
else {
return $local;
}
}