/**
* Find empty directories
*
* @param string $dir An absolute path to the directory to search
* @param integer $options Iterator options
* @return array<string>
*/
public static function emptyDirectories($dir, $options = 0)
{
$ret = [];
$iterator = self::getIterator($dir, $options);
foreach ($iterator as $file) {
if ($iterator->isDot() === false && $file->isDir() && ($path = $file->getRealPath()) && !array_key_exists($path, $ret) && Dir::isEmpty($path)) {
$ret[$path] = 1;
}
}
return array_keys($ret);
}
/**
* Recursively copy a directory
*
* @param string $source The absolute directory path to copy from
* @param string $dest The absolute directory path to copy to
* @param octal $mode Permissions for newly created directories
* @return boolean|string
* @return boolean:true The copy was successful
* @return string An error message describing the failure
*/
public static function copy($source, $dest, $mode = 0775)
{
if (($test = Dir::prepare($dest, $mode)) !== true) {
return "failed to copy '{$source}' to '{$dest}'; {$test}";
} else {
if (Dir::isEmpty($dest) === false) {
return "failed to copy '{$source}'; '{$dest}' is not empty";
}
}
$iterator = Find::getIterator($source, Find::RECURSIVE);
foreach ($iterator as $file) {
$destPath = $dest . DIRECTORY_SEPARATOR . $iterator->getSubPathName();
if ($file->isDir()) {
mkdir($destPath, $mode);
} else {
copy($file, $destPath);
}
}
return true;
}
