public IExpressStore GetCheckpointStore(string checkPointPath)
{
if (chain.ConsensusNodes.Count != 1)
{
throw new ArgumentException("Checkpoint restore is only supported on single node express instances", nameof(chain));
}
var node = chain.ConsensusNodes[0];
if (IsRunning(node))
{
throw new Exception($"node already running");
}
checkPointPath = ResolveCheckpointFileName(checkPointPath);
if (!fileSystem.File.Exists(checkPointPath))
{
throw new Exception($"Checkpoint {checkPointPath} couldn't be found");
}
var checkpointTempPath = fileSystem.GetTempFolder();
var folderCleanup = AnonymousDisposable.Create(() =>
{
if (fileSystem.Directory.Exists(checkpointTempPath))
{
fileSystem.Directory.Delete(checkpointTempPath, true);
}
});
var multiSigAccount = node.Wallet.Accounts.Single(a => a.IsMultiSigContract());
RocksDbStore.RestoreCheckpoint(checkPointPath, checkpointTempPath, chain.Magic, multiSigAccount.ScriptHash);
return(new CheckpointStore(RocksDbStore.OpenReadOnly(checkpointTempPath), true, folderCleanup));
}
public void RestoreCheckpoint(string checkPointArchive, bool force)
{
if (chain.ConsensusNodes.Count != 1)
{
throw new ArgumentException("Checkpoint restore is only supported on single node express instances", nameof(chain));
}
checkPointArchive = ResolveCheckpointFileName(checkPointArchive);
if (!fileSystem.File.Exists(checkPointArchive))
{
throw new Exception($"Checkpoint {checkPointArchive} couldn't be found");
}
var node = chain.ConsensusNodes[0];
if (IsRunning(node))
{
var scriptHash = node.Wallet.DefaultAccount?.ScriptHash ?? "<unknown>";
throw new InvalidOperationException($"node {scriptHash} currently running");
}
var checkpointTempPath = fileSystem.GetTempFolder();
using var folderCleanup = AnonymousDisposable.Create(() =>
{
if (fileSystem.Directory.Exists(checkpointTempPath))
{
fileSystem.Directory.Delete(checkpointTempPath, true);
}
});
var multiSigAccount = node.Wallet.Accounts.Single(a => a.IsMultiSigContract());
var nodeFolder = fileSystem.GetNodePath(node);
if (fileSystem.Directory.Exists(nodeFolder))
{
if (force)
{
fileSystem.Directory.Delete(nodeFolder, true);
}
else
{
throw new Exception("You must specify force to restore a checkpoint to an existing blockchain.");
}
}
RocksDbStore.RestoreCheckpoint(checkPointArchive, checkpointTempPath, chain.Magic, multiSigAccount.ScriptHash);
fileSystem.Directory.Move(checkpointTempPath, nodeFolder);
}
