/**
* Given an instance and a snapshot ID, replace the data with that of the snapshot.
*
* @param int|string $instanceId
* @param string $snapshot A snapshot id or path to a snapshot
*
* @return array
*/
public function restore($instanceId, $snapshot)
{
$_filename = null;
$_instance = $this->_findInstance($instanceId);
$snapshot = trim($snapshot, DIRECTORY_SEPARATOR . ' ');
// Determine source of import
if (file_exists($snapshot)) {
// Absolute path
$_filename = $snapshot;
} else {
if (file_exists($_instance->getSnapshotPath() . DIRECTORY_SEPARATOR . $snapshot)) {
// Relative to snapshot path
$_filename = $_instance->getSnapshotPath() . DIRECTORY_SEPARATOR . $snapshot;
} else {
// A snapshot hash given, find related snapshot
/** @type Snapshot $_snapshot */
if (null === ($_snapshot = Snapshot::with('route-hash')->bySnapshotId($snapshot)->first())) {
throw new \InvalidArgumentException('The snapshot "' . $snapshot . '" is unrecognized or invalid."');
}
return Provision::import(new ImportJob(new PortableServiceRequest($_instance, ['target' => $_snapshot->snapshot_id_text])));
}
}
// Mount the snapshot
$_workPath = dirname($_filename);
$_fsSnapshot = $this->mountSnapshot($instanceId, $_filename, $_workPath);
// Reconstitute the manifest and grab the services
$_manifest = SnapshotManifest::createFromFile(config('snapshot.metadata-file-name'), $_fsSnapshot);
$_services = Provision::getPortableServices($_manifest->get('guest-location'));
$_result = [];
foreach ($_fsSnapshot->listContents() as $_item) {
// Find the exports in the snapshot
if (false !== ($_pos = stripos('-export.', $_item['file']))) {
if (!PortableTypes::has($_type = substr($_item['file'], 0, $_pos))) {
continue;
}
if (array_key_exists($_type, $_services)) {
$_job = new ImportJob(new PortableServiceRequest($_instance, ['target' => $_workPath . DIRECTORY_SEPARATOR . $_item['file']]));
$_result[$_type] = $_services[$_type]->import($_job);
}
}
}
return $_result;
}
