function installFTP($ftp_root)
{
$ftp_root = "/" . trim($ftp_root, "/") . "/";
// Create backups folder
$this->Connection->createDirectory($ftp_root . "backups/");
// Doing a core upgrade
if ($this->Extension === false) {
// Backup database
BigTreeAdmin::backupDatabase(SERVER_ROOT . "cache/backup.sql");
$this->Connection->rename($ftp_root . "cache/backup.sql", $ftp_root . "backups/core-" . BIGTREE_VERSION . "/backup.sql");
// Backup old core
$this->Connection->rename($ftp_root . "core/", $ftp_root . "backups/core-" . BIGTREE_VERSION . "/");
// Move new core into place
$this->Connection->rename($ftp_root . "cache/update/core/", $ftp_root . "core/");
// Doing an extension upgrade
} else {
$extension = $this->Extension;
// Create a backups folder for this extension
$this->Connection->createDirectory($ftp_root . "backups/extensions/");
$this->Connection->createDirectory($ftp_root . "backups/extensions/{$extension}/");
// Read manifest file for current version
$current_manifest = json_decode(file_get_contents(SERVER_ROOT . "extensions/{$extension}/manifest.json"), true);
$old_version = $current_manifest["version"];
// Get a unique directory name
$old_version = BigTree::getAvailableFileName(SERVER_ROOT . "backups/extensions/{$extension}/", $old_version);
// Move old extension into backups
$this->Connection->rename($ftp_root . "extensions/{$extension}/", $ftp_root . "backups/extensions/{$extension}/{$old_version}/");
// Move new extension into place
$this->Connection->rename($ftp_root . "cache/update/", $ftp_root . "extensions/{$extension}/");
}
$this->cleanup();
}
