Checks that the directory exists and is writable.
Directories need to have execute permissions to be considered a directory by FTP servers, etc.
$directory: A string reference containing the name of a directory path or URI. A trailing slash will be trimmed from a path.
$options: A bitmask to indicate if the directory should be created if it does not exist (FILE_CREATE_DIRECTORY) or made writable if it is read-only (FILE_MODIFY_PERMISSIONS).
TRUE if the directory exists (or was created) and is writable. FALSE otherwise.
function file_prepare_directory(&$directory, $options = FILE_MODIFY_PERMISSIONS) {
if (!file_stream_wrapper_valid_scheme(file_uri_scheme($directory))) {
// Only trim if we're not dealing with a stream.
$directory = rtrim($directory, '/\\');
}
// Check if directory exists.
if (!is_dir($directory)) {
// Let mkdir() recursively create directories and use the default directory
// permissions.
if ($options & FILE_CREATE_DIRECTORY && @drupal_mkdir($directory, NULL, TRUE)) {
return drupal_chmod($directory);
}
return FALSE;
}
// The directory exists, so check to see if it is writable.
$writable = is_writable($directory);
if (!$writable && $options & FILE_MODIFY_PERMISSIONS) {
return drupal_chmod($directory);
}
return $writable;
}