/**
* Delete all the contents of a directory.
*
* @param Directory|string $dir Directory instance or directory path as a string to delete the contents from.
* @param resource $context [optional] See the unlink() function for documentation.
*
* @return int
*
* @see unlink()
*/
public static function deleteContents($dir, $context = null)
{
// Convert the directory into a path string, return the $default value if failed
if (($dir = self::asPath($dir, false)) === null) {
return -1;
}
// The directory must exist
if (!self::isDirectory($dir)) {
return -1;
}
// Count the deleted files, symbolic links and directories
$count = 0;
// Create a directory scanner, then list and delete all directory contents
$scanner = new DirectoryScanner($dir);
while (($item = $scanner->read()) !== null) {
$count += self::delete($item, $context, true);
}
// Return the number of removed files and directories
return $count;
}
/**
* Get all language files in the language directory.
*
* @return array Language files.
*
* @throws Exception Throws if an error occurred.
*/
private static function getLanguageFiles()
{
// Get the language directory and make sure it exists
$langDir = static::getLanguageDirectory();
if (!$langDir->isDirectory()) {
throw new Exception('Language file directory doesn\'t exist, or isn\'t accessible!');
}
// Create a directory scanner to list all language files
$scanner = new DirectoryScanner($langDir);
// Define an array for the language files
$langFiles = array();
// Process each file in this directory
while (($file = $scanner->read()) !== null) {
// Make sure this file is a file
if (!$file->isFile()) {
continue;
}
// Make sure the extension is valid
if (!StringUtils::equals($file->getExtension(false), 'ini', false, true)) {
continue;
}
// Add the file to the language files list
$langFiles[] = $file;
}
// Return the list of files
return $langFiles;
}
