Detect and retry changed files during backups instead of using Minecraft commands to pause saving

Agent/Phantom.Agent.Services/AgentDirectories.cs

@@ -0,0 +1,51 @@
+using Phantom.Utils.IO;
+using Phantom.Utils.Logging;
+using Serilog;
+
+namespace Phantom.Agent.Services;
+
+public sealed class AgentDirectories {
+	private static readonly ILogger Logger = PhantomLogger.Create<AgentDirectories>();
+	
+	internal string DataDirectoryPath { get; }
+	internal string InstancesDirectoryPath { get; }
+	internal string BackupsDirectoryPath { get; }
+	
+	internal string TemporaryDirectoryPath { get; }
+	internal string ServerExecutableDirectoryPath { get; }
+	
+	public string JavaSearchDirectoryPath { get; }
+	
+	public AgentDirectories(string dataDirectoryPath, string temporaryDirectoryPath, string javaSearchDirectoryPath) {
+		this.DataDirectoryPath = Path.GetFullPath(dataDirectoryPath);
+		this.InstancesDirectoryPath = Path.Combine(DataDirectoryPath, "instances");
+		this.BackupsDirectoryPath = Path.Combine(DataDirectoryPath, "backups");
+		
+		this.TemporaryDirectoryPath = Path.GetFullPath(temporaryDirectoryPath);
+		this.ServerExecutableDirectoryPath = Path.Combine(TemporaryDirectoryPath, "servers");
+		
+		this.JavaSearchDirectoryPath = javaSearchDirectoryPath;
+	}
+	
+	public bool TryCreate() {
+		return TryCreateDirectory(DataDirectoryPath) &&
+		       TryCreateDirectory(InstancesDirectoryPath) &&
+		       TryCreateDirectory(BackupsDirectoryPath) &&
+		       TryCreateDirectory(TemporaryDirectoryPath) &&
+		       TryCreateDirectory(ServerExecutableDirectoryPath);
+	}
+	
+	private static bool TryCreateDirectory(string directoryPath) {
+		if (Directory.Exists(directoryPath)) {
+			return true;
+		}
+		
+		try {
+			Directories.Create(directoryPath, Chmod.URWX_GRX);
+			return true;
+		} catch (Exception e) {
+			Logger.Fatal(e, "Error creating directory: {DirectoryPath}", directoryPath);
+			return false;
+		}
+	}
+}

Agent/Phantom.Agent.Services/AgentFolders.cs

@@ -1,51 +0,0 @@
-using Phantom.Utils.IO;
-using Phantom.Utils.Logging;
-using Serilog;
-
-namespace Phantom.Agent.Services;
-
-public sealed class AgentFolders {
-	private static readonly ILogger Logger = PhantomLogger.Create<AgentFolders>();
-	
-	internal string DataFolderPath { get; }
-	internal string InstancesFolderPath { get; }
-	internal string BackupsFolderPath { get; }
-	
-	internal string TemporaryFolderPath { get; }
-	internal string ServerExecutableFolderPath { get; }
-	
-	public string JavaSearchFolderPath { get; }
-	
-	public AgentFolders(string dataFolderPath, string temporaryFolderPath, string javaSearchFolderPath) {
-		this.DataFolderPath = Path.GetFullPath(dataFolderPath);
-		this.InstancesFolderPath = Path.Combine(DataFolderPath, "instances");
-		this.BackupsFolderPath = Path.Combine(DataFolderPath, "backups");
-		
-		this.TemporaryFolderPath = Path.GetFullPath(temporaryFolderPath);
-		this.ServerExecutableFolderPath = Path.Combine(TemporaryFolderPath, "servers");
-		
-		this.JavaSearchFolderPath = javaSearchFolderPath;
-	}
-	
-	public bool TryCreate() {
-		return TryCreateFolder(DataFolderPath) &&
-		       TryCreateFolder(InstancesFolderPath) &&
-		       TryCreateFolder(BackupsFolderPath) &&
-		       TryCreateFolder(TemporaryFolderPath) &&
-		       TryCreateFolder(ServerExecutableFolderPath);
-	}
-	
-	private static bool TryCreateFolder(string folderPath) {
-		if (Directory.Exists(folderPath)) {
-			return true;
-		}
-		
-		try {
-			Directories.Create(folderPath, Chmod.URWX_GRX);
-			return true;
-		} catch (Exception e) {
-			Logger.Fatal(e, "Error creating folder: {FolderPath}", folderPath);
-			return false;
-		}
-	}
-}

Agent/Phantom.Agent.Services/AgentServices.cs

@@ -22,16 +22,16 @@ public sealed class AgentServices {
 	internal InstanceTicketManager InstanceTicketManager { get; }
 	internal ActorRef<InstanceManagerActor.ICommand> InstanceManager { get; }
 	
-	public AgentServices(AgentInfo agentInfo, AgentFolders agentFolders, AgentServiceConfiguration serviceConfiguration, ControllerConnection controllerConnection, JavaRuntimeRepository javaRuntimeRepository) {
+	public AgentServices(AgentInfo agentInfo, AgentDirectories agentDirectories, AgentServiceConfiguration serviceConfiguration, ControllerConnection controllerConnection, JavaRuntimeRepository javaRuntimeRepository) {
 		this.ActorSystem = ActorSystemFactory.Create("Agent");
 		
 		this.AgentState = new AgentState();
-		this.BackupManager = new BackupManager(agentFolders, serviceConfiguration.MaxConcurrentCompressionTasks);
+		this.BackupManager = new BackupManager(agentDirectories, serviceConfiguration.MaxConcurrentCompressionTasks);
 		
 		this.JavaRuntimeRepository = javaRuntimeRepository;
 		this.InstanceTicketManager = new InstanceTicketManager(agentInfo, controllerConnection);
 		
-		var instanceManagerInit = new InstanceManagerActor.Init(controllerConnection, agentFolders, AgentState, JavaRuntimeRepository, InstanceTicketManager, BackupManager);
+		var instanceManagerInit = new InstanceManagerActor.Init(controllerConnection, agentDirectories, AgentState, JavaRuntimeRepository, InstanceTicketManager, BackupManager);
 		this.InstanceManager = ActorSystem.ActorOf(InstanceManagerActor.Factory(instanceManagerInit), "InstanceManager");
 	}
 	

Agent/Phantom.Agent.Services/Backups/BackupArchiver.cs

@@ -1,6 +1,7 @@
 using System.Collections.Immutable;
 using System.Diagnostics.CodeAnalysis;
 using System.Formats.Tar;
+using System.Security.Cryptography;
 using Phantom.Agent.Services.Instances;
 using Phantom.Common.Data.Backups;
 using Phantom.Utils.IO;
@@ -9,30 +10,27 @@ using Serilog;
 
 namespace Phantom.Agent.Services.Backups;
 
-sealed class BackupArchiver {
-	private readonly string destinationBasePath;
-	private readonly string temporaryBasePath;
-	private readonly ILogger logger;
-	private readonly InstanceProperties instanceProperties;
-	private readonly CancellationToken cancellationToken;
+static class BackupArchiver {
+	public static async Task<string?> Run(string loggerName, string destinationBasePath, string temporaryBasePath, InstanceProperties instanceProperties, BackupCreationResult.Builder resuiltBuilder, CancellationToken cancellationToken) {
+		string guid = instanceProperties.InstanceGuid.ToString();
+		string currentDateTime = DateTime.Now.ToString("yyyyMMdd-HHmmss");
 		
-	public BackupArchiver(string destinationBasePath, string temporaryBasePath, string loggerName, InstanceProperties instanceProperties, CancellationToken cancellationToken) {
-		this.destinationBasePath = destinationBasePath;
-		this.temporaryBasePath = temporaryBasePath;
-		this.logger = PhantomLogger.Create<BackupArchiver>(loggerName);
-		this.instanceProperties = instanceProperties;
-		this.cancellationToken = cancellationToken;
+		string backupDirectoryPath = Path.Combine(destinationBasePath, guid);
+		string backupFilePath = Path.Combine(backupDirectoryPath, currentDateTime + ".tar");
+		string temporaryDirectoryPath = Path.Combine(temporaryBasePath, guid + "_" + currentDateTime);
+		
+		return await new Runner(loggerName, backupDirectoryPath, backupFilePath, temporaryDirectoryPath, instanceProperties, resuiltBuilder, cancellationToken).Run();
 	}
 	
-	private bool IsFolderSkipped(ImmutableList<string> relativePath) {
-		return relativePath is ["cache" or "crash-reports" or "debug" or "libraries" or "logs" or "mods" or "versions"];
+	private static bool IsDirectorySkipped(RelativePath relativePath) {
+		return relativePath.Components is ["cache" or "crash-reports" or "debug" or "libraries" or "logs" or "mods" or "versions"];
 	}
 	
 	[SuppressMessage("ReSharper", "ConvertIfStatementToReturnStatement")]
-	private bool IsFileSkipped(ImmutableList<string> relativePath) {
-		var name = relativePath[^1];
+	private static bool IsFileSkipped(RelativePath relativePath) {
+		var name = relativePath.Components[^1];
 		
-		if (relativePath.Count == 2 && name == "session.lock") {
+		if (relativePath.Components.Count == 2 && name == "session.lock") {
 			return true;
 		}
 		
@@ -44,137 +42,184 @@ sealed class BackupArchiver {
 		return false;
 	}
 	
-	public async Task<string?> ArchiveWorld(BackupCreationResult.Builder resultBuilder) {
-		string guid = instanceProperties.InstanceGuid.ToString();
-		string currentDateTime = DateTime.Now.ToString("yyyyMMdd-HHmmss");
-		string backupFolderPath = Path.Combine(destinationBasePath, guid);
-		string backupFilePath = Path.Combine(backupFolderPath, currentDateTime + ".tar");
+	private sealed class Runner(
+		string loggerName,
+		string backupDirectoryPath,
+		string backupFilePath,
+		string temporaryDirectoryPath,
+		InstanceProperties instanceProperties,
+		BackupCreationResult.Builder resultBuilder,
+		CancellationToken cancellationToken
+	) {
+		private readonly ILogger logger = PhantomLogger.Create(nameof(BackupArchiver), loggerName);
+		private readonly FileHashComparer fileHashComparer = new (cancellationToken);
 		
-		if (File.Exists(backupFilePath)) {
-			resultBuilder.Kind = BackupCreationResultKind.BackupFileAlreadyExists;
-			logger.Warning("Skipping backup, file already exists: {File}", backupFilePath);
-			return null;
-		}
-		
-		try {
-			Directories.Create(backupFolderPath, Chmod.URWX_GRX);
-		} catch (Exception e) {
-			resultBuilder.Kind = BackupCreationResultKind.CouldNotCreateBackupFolder;
-			logger.Error(e, "Could not create backup folder: {Folder}", backupFolderPath);
-			return null;
-		}
-		
-		string temporaryFolderPath = Path.Combine(temporaryBasePath, guid + "_" + currentDateTime);
-		if (!await CopyWorldAndCreateTarArchive(temporaryFolderPath, backupFilePath, resultBuilder)) {
-			return null;
-		}
-		
-		logger.Debug("Created world backup: {FilePath}", backupFilePath);
-		return backupFilePath;
-	}
-	
-	private async Task<bool> CopyWorldAndCreateTarArchive(string temporaryFolderPath, string backupFilePath, BackupCreationResult.Builder resultBuilder) {
-		try {
-			if (!await CopyWorldToTemporaryFolder(temporaryFolderPath)) {
-				resultBuilder.Kind = BackupCreationResultKind.CouldNotCopyWorldToTemporaryFolder;
-				return false;
+		public async Task<string?> Run() {
+			if (File.Exists(backupFilePath)) {
+				resultBuilder.Kind = BackupCreationResultKind.BackupFileAlreadyExists;
+				logger.Warning("Skipping backup, file already exists: {FilePath}", backupFilePath);
+				return null;
 			}
 			
-			if (!await CreateTarArchive(temporaryFolderPath, backupFilePath)) {
-				resultBuilder.Kind = BackupCreationResultKind.CouldNotCreateWorldArchive;
-				return false;
-			}
-			
-			return true;
-		} finally {
 			try {
-				Directory.Delete(temporaryFolderPath, recursive: true);
+				Directories.Create(backupDirectoryPath, Chmod.URWX_GRX);
 			} catch (Exception e) {
-				resultBuilder.Warnings |= BackupCreationWarnings.CouldNotDeleteTemporaryFolder;
-				logger.Error(e, "Could not delete temporary world folder: {Folder}", temporaryFolderPath);
+				resultBuilder.Kind = BackupCreationResultKind.CouldNotCreateBackupDirectory;
+				logger.Error(e, "Could not create backup directory: {DirectoryPath}", backupDirectoryPath);
+				return null;
 			}
-		}
-	}
 			
-	private async Task<bool> CopyWorldToTemporaryFolder(string temporaryFolderPath) {
-		try {
-			await CopyDirectory(new DirectoryInfo(instanceProperties.InstanceFolder), temporaryFolderPath, ImmutableList<string>.Empty);
-			return true;
-		} catch (Exception e) {
-			logger.Error(e, "Could not copy world to temporary folder.");
-			return false;
-		}
-	}
-	
-	private async Task<bool> CreateTarArchive(string sourceFolderPath, string backupFilePath) {
-		try {
-			await TarFile.CreateFromDirectoryAsync(sourceFolderPath, backupFilePath, includeBaseDirectory: false, cancellationToken);
-			return true;
-		} catch (Exception e) {
-			logger.Error(e, "Could not create archive.");
-			DeleteBrokenArchiveFile(backupFilePath);
-			return false;
-		}
-	}
-	
-	private void DeleteBrokenArchiveFile(string filePath) {
-		if (File.Exists(filePath)) {
 			try {
-				File.Delete(filePath);
-			} catch (Exception e) {
-				logger.Error(e, "Could not delete broken archive: {File}", filePath);
-			}
-		}
-	}
-	
-	private async Task CopyDirectory(DirectoryInfo sourceFolder, string destinationFolderPath, ImmutableList<string> relativePath) {
-		cancellationToken.ThrowIfCancellationRequested();
-		
-		bool needsToCreateFolder = true;
-		
-		foreach (FileInfo file in sourceFolder.EnumerateFiles()) {
-			var filePath = relativePath.Add(file.Name);
-			if (IsFileSkipped(filePath)) {
-				logger.Debug("Skipping file: {File}", string.Join(separator: '/', filePath));
-				continue;
-			}
-			
-			if (needsToCreateFolder) {
-				needsToCreateFolder = false;
-				Directories.Create(destinationFolderPath, Chmod.URWX);
-			}
-			
-			await CopyFileWithRetries(file, destinationFolderPath);
-		}
-		
-		foreach (DirectoryInfo directory in sourceFolder.EnumerateDirectories()) {
-			var folderPath = relativePath.Add(directory.Name);
-			if (IsFolderSkipped(folderPath)) {
-				logger.Debug("Skipping folder: {Folder}", string.Join(separator: '/', folderPath));
-				continue;
-			}
-			
-			await CopyDirectory(directory, Path.Join(destinationFolderPath, directory.Name), folderPath);
-		}
-	}
-	
-	private async Task CopyFileWithRetries(FileInfo sourceFile, string destinationFolderPath) {
-		var destinationFilePath = Path.Combine(destinationFolderPath, sourceFile.Name);
-		
-		const int TotalAttempts = 10;
-		for (int attempt = 1; attempt <= TotalAttempts; attempt++) {
-			try {
-				sourceFile.CopyTo(destinationFilePath);
-				return;
-			} catch (IOException) {
-				if (attempt == TotalAttempts) {
-					throw;
+				if (!await CopyInstanceDirectoryIntoTemporaryDirectory()) {
+					resultBuilder.Kind = BackupCreationResultKind.CouldNotCopyInstanceIntoTemporaryDirectory;
+					return null;
 				}
-				else {
-					logger.Warning("Failed copying file {File}, retrying...", sourceFile.FullName);
-					await Task.Delay(millisecondsDelay: 200, cancellationToken);
+				
+				if (!await CreateBackupArchiveFromTemporaryDirectory()) {
+					resultBuilder.Kind = BackupCreationResultKind.CouldNotCreateBackupArchive;
+					return null;
+				}
+				
+				logger.Information("Created backup: {FilePath}", backupFilePath);
+				return backupFilePath;
+			} finally {
+				try {
+					Directory.Delete(temporaryDirectoryPath, recursive: true);
+				} catch (Exception e1) {
+					resultBuilder.Warnings |= BackupCreationWarnings.CouldNotDeleteTemporaryDirectory;
+					logger.Error(e1, "Could not delete temporary directory: {DirectoryPath}", temporaryDirectoryPath);
 				}
 			}
 		}
+		
+		private async Task<bool> CopyInstanceDirectoryIntoTemporaryDirectory() {
+			try {
+				await CopyDirectory(new DirectoryInfo(instanceProperties.InstanceDirectoryPath), RelativePath.Empty, temporaryDirectoryPath);
+				return true;
+			} catch (Exception e) {
+				logger.Error(e, "Could not copy instance directory into temporary directory: {DirectoryPath}", temporaryDirectoryPath);
+				return false;
+			}
+		}
+		
+		private async Task CopyDirectory(DirectoryInfo sourceDirectory, RelativePath sourceDirectoryRelativePath, string destinationDirectoryPath) {
+			cancellationToken.ThrowIfCancellationRequested();
+			
+			bool needsToCreateDirectory = true;
+			
+			foreach (FileInfo file in sourceDirectory.EnumerateFiles()) {
+				var filePath = sourceDirectoryRelativePath.Child(file.Name);
+				if (IsFileSkipped(filePath)) {
+					logger.Verbose("Skipped file: {FilePath}", filePath);
+					continue;
+				}
+				
+				if (needsToCreateDirectory) {
+					needsToCreateDirectory = false;
+					Directories.Create(destinationDirectoryPath, Chmod.URWX);
+				}
+				
+				await CopyFileWithRetries(file, filePath, Path.Combine(destinationDirectoryPath, file.Name));
+				logger.Verbose("Copied file: {FilePath}", filePath);
+			}
+			
+			foreach (DirectoryInfo directory in sourceDirectory.EnumerateDirectories()) {
+				var directoryPath = sourceDirectoryRelativePath.Child(directory.Name);
+				if (IsDirectorySkipped(directoryPath)) {
+					logger.Verbose("Skipped directory: {DirectoryPath}", directoryPath);
+					continue;
+				}
+				
+				await CopyDirectory(directory, directoryPath, Path.Join(destinationDirectoryPath, directory.Name));
+			}
+		}
+		
+		private async Task CopyFileWithRetries(FileInfo sourceFile, RelativePath sourceFileRelativePath, string destinationFilePath) {
+			const int TotalAttempts = 10;
+			
+			for (int attempt = 1; attempt <= TotalAttempts; attempt++) {
+				try {
+					FileInfo destinationFile = sourceFile.CopyTo(destinationFilePath, overwrite: true);
+					
+					if (await fileHashComparer.CheckHashEquals(sourceFile, destinationFile)) {
+						return;
+					}
+					
+					if (attempt == TotalAttempts) {
+						logger.Warning("File {FilePath} changed while copying, using last attempt", sourceFileRelativePath);
+						resultBuilder.Warnings |= BackupCreationWarnings.SomeFilesChangedDuringBackup;
+					}
+					else {
+						logger.Warning("File {FilePath} changed while copying, retrying...", sourceFileRelativePath);
+					}
+				} catch (IOException) {
+					if (attempt == TotalAttempts) {
+						throw;
+					}
+					else {
+						logger.Warning("Failed copying file {FilePath}, retrying...", sourceFileRelativePath);
+					}
+				}
+				
+				await Task.Delay(millisecondsDelay: 200, cancellationToken);
+			}
+		}
+		
+		private async Task<bool> CreateBackupArchiveFromTemporaryDirectory() {
+			try {
+				await TarFile.CreateFromDirectoryAsync(temporaryDirectoryPath, backupFilePath, includeBaseDirectory: false, cancellationToken);
+				return true;
+			} catch (Exception e) {
+				logger.Error(e, "Could not create archive.");
+				DeleteBrokenArchiveFile(backupFilePath);
+				return false;
+			}
+		}
+		
+		private void DeleteBrokenArchiveFile(string filePath) {
+			if (File.Exists(filePath)) {
+				try {
+					File.Delete(filePath);
+				} catch (Exception e) {
+					logger.Error(e, "Could not delete broken archive: {FilePath}", filePath);
+				}
+			}
+		}
+	}
+	
+	private readonly record struct RelativePath(ImmutableList<string> Components) {
+		public static RelativePath Empty => new (ImmutableList<string>.Empty);
+		
+		public RelativePath Child(string component) {
+			return new RelativePath(Components.Add(component));
+		}
+		
+		public override string ToString() {
+			return string.Join(separator: '/', Components);
+		}
+	}
+	
+	private sealed class FileHashComparer(CancellationToken cancellationToken) {
+		private static readonly FileStreamOptions FileStreamOptions = new () {
+			Mode = FileMode.Open,
+			Access = FileAccess.Read,
+			Share = FileShare.ReadWrite,
+			Options = FileOptions.Asynchronous | FileOptions.SequentialScan,
+			BufferSize = 65536,
+		};
+		
+		private readonly Memory<byte> hash1 = new byte[SHA1.HashSizeInBytes];
+		private readonly Memory<byte> hash2 = new byte[SHA1.HashSizeInBytes];
+		
+		public async Task<bool> CheckHashEquals(FileInfo file1, FileInfo file2) {
+			await ComputeHash(file1, hash1);
+			await ComputeHash(file2, hash2);
+			return hash1.Span.SequenceEqual(hash2.Span);
+		}
+		
+		private async Task ComputeHash(FileInfo file, Memory<byte> destination) {
+			await using var fileStream = file.Open(FileStreamOptions);
+			await SHA1.HashDataAsync(fileStream, destination, cancellationToken);
+		}
 	}
 }

Agent/Phantom.Agent.Services/Backups/BackupManager.cs

@@ -5,16 +5,10 @@ using Serilog;
 
 namespace Phantom.Agent.Services.Backups;
 
-sealed class BackupManager : IDisposable {
-	private readonly string destinationBasePath;
-	private readonly string temporaryBasePath;
-	private readonly SemaphoreSlim compressionSemaphore;
-	
-	public BackupManager(AgentFolders agentFolders, int maxConcurrentCompressionTasks) {
-		this.destinationBasePath = agentFolders.BackupsFolderPath;
-		this.temporaryBasePath = Path.Combine(agentFolders.TemporaryFolderPath, "backups");
-		this.compressionSemaphore = new SemaphoreSlim(maxConcurrentCompressionTasks, maxConcurrentCompressionTasks);
-	}
+sealed class BackupManager(AgentDirectories agentDirectories, int maxConcurrentCompressionTasks) : IDisposable {
+	private readonly string destinationBasePath = agentDirectories.BackupsDirectoryPath;
+	private readonly string temporaryBasePath = Path.Combine(agentDirectories.TemporaryDirectoryPath, "backups");
+	private readonly SemaphoreSlim compressionSemaphore = new (maxConcurrentCompressionTasks, maxConcurrentCompressionTasks);
 	
 	public Task<BackupCreationResult> CreateBackup(string loggerName, InstanceProcess process, CancellationToken cancellationToken) {
 		return new BackupCreator(this, loggerName, process, cancellationToken).CreateBackup();
@@ -24,33 +18,17 @@ sealed class BackupManager : IDisposable {
 		compressionSemaphore.Dispose();
 	}
 	
-	private sealed class BackupCreator {
-		private readonly BackupManager manager;
-		private readonly string loggerName;
-		private readonly ILogger logger;
-		private readonly InstanceProcess process;
-		private readonly CancellationToken cancellationToken;
-		
-		public BackupCreator(BackupManager manager, string loggerName, InstanceProcess process, CancellationToken cancellationToken) {
-			this.manager = manager;
-			this.loggerName = loggerName;
-			this.logger = PhantomLogger.Create<BackupManager>(loggerName);
-			this.process = process;
-			this.cancellationToken = cancellationToken;
-		}
+	private sealed class BackupCreator(BackupManager manager, string loggerName, InstanceProcess process, CancellationToken cancellationToken) {
+		private readonly ILogger logger = PhantomLogger.Create<BackupManager>(loggerName);
 		
 		public async Task<BackupCreationResult> CreateBackup() {
 			logger.Information("Backup started.");
 			
 			var resultBuilder = new BackupCreationResult.Builder();
-			string? backupFilePath;
-			
-			using (var dispatcher = new BackupServerCommandDispatcher(logger, process, cancellationToken)) {
-				backupFilePath = await CreateWorldArchive(dispatcher, resultBuilder);
-			}
+			string? backupFilePath = await CreateBackupArchive(resultBuilder);
 			
 			if (backupFilePath != null) {
-				await CompressWorldArchive(backupFilePath, resultBuilder);
+				await CompressBackupArchive(backupFilePath, resultBuilder);
 			}
 			
 			var result = resultBuilder.Build();
@@ -58,11 +36,9 @@ sealed class BackupManager : IDisposable {
 			return result;
 		}
 		
-		private async Task<string?> CreateWorldArchive(BackupServerCommandDispatcher dispatcher, BackupCreationResult.Builder resultBuilder) {
+		private async Task<string?> CreateBackupArchive(BackupCreationResult.Builder resultBuilder) {
 			try {
-				await dispatcher.DisableAutomaticSaving();
-				await dispatcher.SaveAllChunks();
-				return await new BackupArchiver(manager.destinationBasePath, manager.temporaryBasePath, loggerName, process.InstanceProperties, cancellationToken).ArchiveWorld(resultBuilder);
+				return await BackupArchiver.Run(loggerName, manager.destinationBasePath, manager.temporaryBasePath, process.InstanceProperties, resultBuilder, cancellationToken);
 			} catch (OperationCanceledException) {
 				resultBuilder.Kind = BackupCreationResultKind.BackupCancelled;
 				logger.Warning("Backup creation was cancelled.");
@@ -75,22 +51,10 @@ sealed class BackupManager : IDisposable {
 				resultBuilder.Kind = BackupCreationResultKind.UnknownError;
 				logger.Error(e, "Caught exception while creating an instance backup.");
 				return null;
-			} finally {
-				try {
-					await dispatcher.EnableAutomaticSaving();
-				} catch (OperationCanceledException) {
-					// Ignore.
-				} catch (TimeoutException) {
-					resultBuilder.Warnings |= BackupCreationWarnings.CouldNotRestoreAutomaticSaving;
-					logger.Warning("Timed out waiting for automatic saving to be re-enabled.");
-				} catch (Exception e) {
-					resultBuilder.Warnings |= BackupCreationWarnings.CouldNotRestoreAutomaticSaving;
-					logger.Error(e, "Caught exception while enabling automatic saving after creating an instance backup.");
-				}
 			}
 		}
 		
-		private async Task CompressWorldArchive(string filePath, BackupCreationResult.Builder resultBuilder) {
+		private async Task CompressBackupArchive(string filePath, BackupCreationResult.Builder resultBuilder) {
 			if (!await manager.compressionSemaphore.WaitAsync(TimeSpan.FromSeconds(1), cancellationToken)) {
 				logger.Information("Too many compression tasks running, waiting for one of them to complete...");
 				await manager.compressionSemaphore.WaitAsync(cancellationToken);
@@ -100,7 +64,7 @@ sealed class BackupManager : IDisposable {
 			try {
 				var compressedFilePath = await BackupCompressor.Compress(filePath, cancellationToken);
 				if (compressedFilePath == null) {
-					resultBuilder.Warnings |= BackupCreationWarnings.CouldNotCompressWorldArchive;
+					resultBuilder.Warnings |= BackupCreationWarnings.CouldNotCompressBackupArchive;
 				}
 			} finally {
 				manager.compressionSemaphore.Release();
@@ -124,16 +88,16 @@ sealed class BackupManager : IDisposable {
 		
 		private static string DescribeResult(BackupCreationResultKind kind) {
 			return kind switch {
-				BackupCreationResultKind.Success                            => "Backup created successfully.",
-				BackupCreationResultKind.InstanceNotRunning                 => "Instance is not running.",
-				BackupCreationResultKind.BackupCancelled                    => "Backup cancelled.",
-				BackupCreationResultKind.BackupTimedOut                     => "Backup timed out.",
-				BackupCreationResultKind.BackupAlreadyRunning               => "A backup is already being created.",
-				BackupCreationResultKind.BackupFileAlreadyExists            => "Backup with the same name already exists.",
-				BackupCreationResultKind.CouldNotCreateBackupFolder         => "Could not create backup folder.",
-				BackupCreationResultKind.CouldNotCopyWorldToTemporaryFolder => "Could not copy world to temporary folder.",
-				BackupCreationResultKind.CouldNotCreateWorldArchive         => "Could not create world archive.",
-				_                                                           => "Unknown error.",
+				BackupCreationResultKind.Success                                    => "Backup created successfully.",
+				BackupCreationResultKind.InstanceNotRunning                         => "Instance is not running.",
+				BackupCreationResultKind.BackupCancelled                            => "Backup cancelled.",
+				BackupCreationResultKind.BackupTimedOut                             => "Backup timed out.",
+				BackupCreationResultKind.BackupAlreadyRunning                       => "A backup is already being created.",
+				BackupCreationResultKind.BackupFileAlreadyExists                    => "Backup with the same name already exists.",
+				BackupCreationResultKind.CouldNotCreateBackupDirectory              => "Could not create backup directory.",
+				BackupCreationResultKind.CouldNotCopyInstanceIntoTemporaryDirectory => "Could not copy instance into temporary directory.",
+				BackupCreationResultKind.CouldNotCreateBackupArchive                => "Could not create backup archive.",
+				_                                                                   => "Unknown error.",
 			};
 		}
 	}

Agent/Phantom.Agent.Services/Backups/BackupServerCommandDispatcher.cs

@@ -1,98 +0,0 @@
-using System.Collections.Immutable;
-using System.Text.RegularExpressions;
-using Phantom.Agent.Services.Games;
-using Phantom.Agent.Services.Instances.State;
-using Phantom.Utils.Tasks;
-using Serilog;
-
-namespace Phantom.Agent.Services.Backups;
-
-sealed partial class BackupServerCommandDispatcher : IDisposable {
-	[GeneratedRegex(@"^(?:(?:\[.*?\] \[Server thread/INFO\].*?:)|(?:[\d-]+? [\d:]+? \[INFO\])) (.*?)$", RegexOptions.NonBacktracking)]
-	private static partial Regex ServerThreadInfoRegex();
-	
-	private static readonly ImmutableHashSet<string> AutomaticSavingDisabledMessages = ImmutableHashSet.Create(
-		"Automatic saving is now disabled",
-		"Turned off world auto-saving",
-		"CONSOLE: Disabling level saving.."
-	);
-	
-	private static readonly ImmutableHashSet<string> SavedTheGameMessages = ImmutableHashSet.Create(
-		"Saved the game",
-		"Saved the world",
-		"CONSOLE: Save complete."
-	);
-	
-	private static readonly ImmutableHashSet<string> AutomaticSavingEnabledMessages = ImmutableHashSet.Create(
-		"Automatic saving is now enabled",
-		"Turned on world auto-saving",
-		"CONSOLE: Enabling level saving.."
-	);
-	
-	private readonly ILogger logger;
-	private readonly InstanceProcess process;
-	private readonly CancellationToken cancellationToken;
-	
-	private readonly TaskCompletionSource automaticSavingDisabled = AsyncTasks.CreateCompletionSource();
-	private readonly TaskCompletionSource savedTheGame = AsyncTasks.CreateCompletionSource();
-	private readonly TaskCompletionSource automaticSavingEnabled = AsyncTasks.CreateCompletionSource();
-	
-	public BackupServerCommandDispatcher(ILogger logger, InstanceProcess process, CancellationToken cancellationToken) {
-		this.logger = logger;
-		this.process = process;
-		this.cancellationToken = cancellationToken;
-		
-		this.process.AddOutputListener(OnOutput, maxLinesToReadFromHistory: 0);
-	}
-	
-	void IDisposable.Dispose() {
-		process.RemoveOutputListener(OnOutput);
-	}
-	
-	public async Task DisableAutomaticSaving() {
-		await process.SendCommand(MinecraftCommand.SaveOff, cancellationToken);
-		await automaticSavingDisabled.Task.WaitAsync(TimeSpan.FromSeconds(30), cancellationToken);
-	}
-	
-	public async Task SaveAllChunks() {
-		await process.SendCommand(MinecraftCommand.SaveAll(flush: true), cancellationToken);
-		await savedTheGame.Task.WaitAsync(TimeSpan.FromMinutes(1), cancellationToken);
-	}
-	
-	public async Task EnableAutomaticSaving() {
-		await process.SendCommand(MinecraftCommand.SaveOn, cancellationToken);
-		await automaticSavingEnabled.Task.WaitAsync(TimeSpan.FromMinutes(1), cancellationToken);
-	}
-	
-	private void OnOutput(object? sender, string? line) {
-		if (line == null) {
-			return;
-		}
-		
-		var match = ServerThreadInfoRegex().Match(line);
-		if (!match.Success) {
-			return;
-		}
-		
-		string info = match.Groups[1].Value;
-		
-		if (!automaticSavingDisabled.Task.IsCompleted) {
-			if (AutomaticSavingDisabledMessages.Contains(info)) {
-				logger.Debug("Detected that automatic saving is disabled.");
-				automaticSavingDisabled.SetResult();
-			}
-		}
-		else if (!savedTheGame.Task.IsCompleted) {
-			if (SavedTheGameMessages.Contains(info)) {
-				logger.Debug("Detected that the game is saved.");
-				savedTheGame.SetResult();
-			}
-		}
-		else if (!automaticSavingEnabled.Task.IsCompleted) {
-			if (AutomaticSavingEnabledMessages.Contains(info)) {
-				logger.Debug("Detected that automatic saving is enabled.");
-				automaticSavingEnabled.SetResult();
-			}
-		}
-	}
-}

Agent/Phantom.Agent.Services/Downloads/FileDownloadManager.cs

@@ -22,7 +22,7 @@ sealed class FileDownloadManager {
 			try {
 				Directories.Create(parentPath.FullName, Chmod.URWX_GRX);
 			} catch (Exception e) {
-				Logger.Error(e, "Unable to create folder: {FolderName}", parentPath.FullName);
+				Logger.Error(e, "Unable to create directory: {DirectoryName}", parentPath.FullName);
 				return null;
 			}
 		}

Agent/Phantom.Agent.Services/Games/MinecraftCommand.cs

@@ -1,10 +0,0 @@
-namespace Phantom.Agent.Services.Games;
-
-static class MinecraftCommand {
-	public const string SaveOn = "save-on";
-	public const string SaveOff = "save-off";
-	
-	public static string SaveAll(bool flush) {
-		return flush ? "save-all flush" : "save-all";
-	}
-}

Agent/Phantom.Agent.Services/Instances/InstanceManagerActor.cs

@@ -19,14 +19,14 @@ namespace Phantom.Agent.Services.Instances;
 sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand> {
 	private static readonly ILogger Logger = PhantomLogger.Create<InstanceManagerActor>();
 	
-	public readonly record struct Init(ControllerConnection ControllerConnection, AgentFolders AgentFolders, AgentState AgentState, JavaRuntimeRepository JavaRuntimeRepository, InstanceTicketManager InstanceTicketManager, BackupManager BackupManager);
+	public readonly record struct Init(ControllerConnection ControllerConnection, AgentDirectories AgentDirectories, AgentState AgentState, JavaRuntimeRepository JavaRuntimeRepository, InstanceTicketManager InstanceTicketManager, BackupManager BackupManager);
 	
 	public static Props<ICommand> Factory(Init init) {
 		return Props<ICommand>.Create(() => new InstanceManagerActor(init), new ActorConfiguration { SupervisorStrategy = SupervisorStrategies.Resume });
 	}
 	
 	private readonly AgentState agentState;
-	private readonly AgentFolders agentFolders;
+	private readonly AgentDirectories agentDirectories;
 	
 	private readonly InstanceServices instanceServices;
 	private readonly InstanceTicketManager instanceTicketManager;
@@ -39,7 +39,7 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 	
 	private InstanceManagerActor(Init init) {
 		this.agentState = init.AgentState;
-		this.agentFolders = init.AgentFolders;
+		this.agentDirectories = init.AgentDirectories;
 		
 		this.instanceServices = new InstanceServices(init.ControllerConnection, init.BackupManager, new FileDownloadManager(), init.JavaRuntimeRepository);
 		this.instanceTicketManager = init.InstanceTicketManager;
@@ -87,8 +87,8 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 		}
 		else {
 			var instanceLoggerName = PhantomLogger.ShortenGuid(instanceGuid) + "/" + Interlocked.Increment(ref instanceLoggerSequenceId);
-			var instanceFolder = Path.Combine(agentFolders.InstancesFolderPath, instanceGuid.ToString());
-			var instanceProperties = new InstanceProperties(instanceGuid, instanceFolder);
+			var instanceDirectoryPath = Path.Combine(agentDirectories.InstancesDirectoryPath, instanceGuid.ToString());
+			var instanceProperties = new InstanceProperties(instanceGuid, instanceDirectoryPath);
 			var instanceInit = new InstanceActor.Init(agentState, instanceGuid, instanceLoggerName, instanceServices, instanceTicketManager, shutdownCancellationToken);
 			instances[instanceGuid] = instance = new Instance(Context.ActorOf(InstanceActor.Factory(instanceInit), "Instance-" + instanceGuid), instanceInfo, instanceProperties, launchRecipe, stopRecipe);
 			
@@ -98,10 +98,10 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 		}
 		
 		try {
-			Directories.Create(instance.Properties.InstanceFolder, Chmod.URWX_GRX);
+			Directories.Create(instance.Properties.InstanceDirectoryPath, Chmod.URWX_GRX);
 		} catch (Exception e) {
-			Logger.Error(e, "Could not create instance folder: {Path}", instance.Properties.InstanceFolder);
-			return ConfigureInstanceResult.CouldNotCreateInstanceFolder;
+			Logger.Error(e, "Could not create instance directory: {Path}", instance.Properties.InstanceDirectoryPath);
+			return ConfigureInstanceResult.CouldNotCreateInstanceDirectory;
 		}
 		
 		if (command.LaunchNow) {
@@ -136,7 +136,7 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 			}
 		}
 		
-		var pathResolver = new InstancePathResolver(agentFolders, instanceServices.JavaRuntimeRepository, instance.Properties);
+		var pathResolver = new InstancePathResolver(agentDirectories, instanceServices.JavaRuntimeRepository, instance.Properties);
 		var valueResolver = new InstanceValueResolver(pathResolver);
 		var launcher = new InstanceLauncher(instanceServices.DownloadManager, pathResolver, valueResolver, instance.Properties, launchRecipe);
 		

Agent/Phantom.Agent.Services/Instances/InstanceProperties.cs

@@ -2,5 +2,5 @@
 
 sealed record InstanceProperties(
 	Guid InstanceGuid,
-	string InstanceFolder
+	string InstanceDirectoryPath
 );

Agent/Phantom.Agent.Services/Instances/Launch/InstanceLauncher.cs

@@ -34,7 +34,7 @@ sealed class InstanceLauncher(
 		
 		var processConfigurator = new ProcessConfigurator {
 			FileName = executablePath,
-			WorkingDirectory = instanceProperties.InstanceFolder,
+			WorkingDirectory = instanceProperties.InstanceDirectoryPath,
 			RedirectInput = true,
 			UseShellExecute = false,
 		};

Agent/Phantom.Agent.Services/Instances/Launch/InstancePathResolver.cs

@@ -5,13 +5,13 @@ using Phantom.Common.Data.Agent.Instance;
 
 namespace Phantom.Agent.Services.Instances.Launch;
 
-sealed class InstancePathResolver(AgentFolders agentFolders, JavaRuntimeRepository javaRuntimeRepository, InstanceProperties instanceProperties) : IInstancePathResolver {
+sealed class InstancePathResolver(AgentDirectories agentDirectories, JavaRuntimeRepository javaRuntimeRepository, InstanceProperties instanceProperties) : IInstancePathResolver {
 	public string? Global(ImmutableArray<string> segments) {
-		return ValidateAndCombinePath(agentFolders.ServerExecutableFolderPath, segments);
+		return ValidateAndCombinePath(agentDirectories.ServerExecutableDirectoryPath, segments);
 	}
 	
 	public string? Local(ImmutableArray<string> segments) {
-		return ValidateAndCombinePath(instanceProperties.InstanceFolder, segments);
+		return ValidateAndCombinePath(instanceProperties.InstanceDirectoryPath, segments);
 	}
 	
 	public string? Runtime(Guid guid) {

Agent/Phantom.Agent.Services/Java/JavaRuntimeDiscovery.cs

@@ -21,19 +21,19 @@ public sealed class JavaRuntimeDiscovery {
 		return null;
 	}
 	
-	public static async Task<JavaRuntimeRepository> Scan(string folderPath, CancellationToken cancellationToken) {
-		var runtimes = await new JavaRuntimeDiscovery().ScanInternal(folderPath, cancellationToken).ToImmutableArrayAsync(cancellationToken);
+	public static async Task<JavaRuntimeRepository> Scan(string directoryPath, CancellationToken cancellationToken) {
+		var runtimes = await new JavaRuntimeDiscovery().ScanInternal(directoryPath, cancellationToken).ToImmutableArrayAsync(cancellationToken);
 		return new JavaRuntimeRepository(runtimes);
 	}
 	
 	private readonly Dictionary<string, int> duplicateDisplayNames = new ();
 	
-	private async IAsyncEnumerable<JavaRuntimeExecutable> ScanInternal(string folderPath, [EnumeratorCancellation] CancellationToken cancellationToken) {
-		Logger.Information("Starting Java runtime scan in: {FolderPath}", folderPath);
+	private async IAsyncEnumerable<JavaRuntimeExecutable> ScanInternal(string directoryPath, [EnumeratorCancellation] CancellationToken cancellationToken) {
+		Logger.Information("Starting Java runtime scan in: {DirectoryPath}", directoryPath);
 		
 		string javaExecutableName = OperatingSystem.IsWindows() ? "java.exe" : "java";
 		
-		foreach (var binFolderPath in Directory.EnumerateDirectories(Paths.ExpandTilde(folderPath), "bin", new EnumerationOptions {
+		foreach (var binDirectoryPath in Directory.EnumerateDirectories(Paths.ExpandTilde(directoryPath), "bin", new EnumerationOptions {
 			MatchType = MatchType.Simple,
 			RecurseSubdirectories = true,
 			ReturnSpecialDirectories = false,
@@ -42,7 +42,7 @@ public sealed class JavaRuntimeDiscovery {
 		}).Order()) {
 			cancellationToken.ThrowIfCancellationRequested();
 			
-			var javaExecutablePath = Paths.NormalizeSlashes(Path.Combine(binFolderPath, javaExecutableName));
+			var javaExecutablePath = Paths.NormalizeSlashes(Path.Combine(binDirectoryPath, javaExecutableName));
 			
 			FileAttributes javaExecutableAttributes;
 			try {

Agent/Phantom.Agent/Program.cs

@@ -37,13 +37,13 @@ try {
 		return 1;
 	}
 	
-	var folders = new AgentFolders("./data", "./temp", javaSearchPath);
-	if (!folders.TryCreate()) {
+	var agentDirectories = new AgentDirectories("./data", "./temp", javaSearchPath);
+	if (!agentDirectories.TryCreate()) {
 		return 1;
 	}
 	
 	var agentInfo = new AgentInfo(ProtocolVersion, fullVersion, maxInstances, maxMemory, allowedServerPorts, allowedRconPorts);
-	var javaRuntimeRepository = await JavaRuntimeDiscovery.Scan(folders.JavaSearchFolderPath, shutdownCancellationToken);
+	var javaRuntimeRepository = await JavaRuntimeDiscovery.Scan(agentDirectories.JavaSearchDirectoryPath, shutdownCancellationToken);
 	
 	var agentRegistrationHandler = new AgentRegistrationHandler();
 	var controllerHandshake = new ControllerHandshake(new AgentRegistration(agentInfo, javaRuntimeRepository.All), agentRegistrationHandler);
@@ -69,7 +69,7 @@ try {
 	try {
 		PhantomLogger.Root.InformationHeading("Launching Phantom Panel agent...");
 		
-		var agentServices = new AgentServices(agentInfo, folders, new AgentServiceConfiguration(maxConcurrentBackupCompressionTasks), new ControllerConnection(rpcClient.MessageSender), javaRuntimeRepository);
+		var agentServices = new AgentServices(agentInfo, agentDirectories, new AgentServiceConfiguration(maxConcurrentBackupCompressionTasks), new ControllerConnection(rpcClient.MessageSender), javaRuntimeRepository);
 		
 		var rpcMessageHandlerInit = new ControllerMessageHandlerActor.Init(agentServices);
 		var rpcMessageHandlerActor = agentServices.ActorSystem.ActorOf(ControllerMessageHandlerActor.Factory(rpcMessageHandlerInit), "ControllerMessageHandler");

Agent/Phantom.Agent/Variables.cs

@@ -36,7 +36,7 @@ sealed record Variables(
 	}
 	
 	private static string GetDefaultJavaSearchPath() {
-		return JavaRuntimeDiscovery.GetSystemSearchPath() ?? throw new Exception("Could not automatically determine the path to Java installations on this system. Please set the JAVA_SEARCH_PATH environment variable to the folder containing Java installations.");
+		return JavaRuntimeDiscovery.GetSystemSearchPath() ?? throw new Exception("Could not automatically determine the path to Java installations on this system. Please set the JAVA_SEARCH_PATH environment variable to the directory containing Java installations.");
 	}
 	
 	public static Variables LoadOrStop() {

Common/Phantom.Common.Data/Backups/BackupCreationResultKind.cs

@@ -8,9 +8,9 @@ public enum BackupCreationResultKind : byte {
 	BackupCancelled = 4,
 	BackupAlreadyRunning = 5,
 	BackupFileAlreadyExists = 6,
-	CouldNotCreateBackupFolder = 7,
-	CouldNotCopyWorldToTemporaryFolder = 8,
-	CouldNotCreateWorldArchive = 9,
+	CouldNotCreateBackupDirectory = 7,
+	CouldNotCopyInstanceIntoTemporaryDirectory = 8,
+	CouldNotCreateBackupArchive = 9,
 }
 
 public static class BackupCreationResultSummaryExtensions {

Common/Phantom.Common.Data/Backups/BackupCreationWarnings.cs

@@ -4,18 +4,20 @@ namespace Phantom.Common.Data.Backups;
 
 [Flags]
 public enum BackupCreationWarnings : byte {
-	None = 0,
-	CouldNotDeleteTemporaryFolder = 1 << 0,
-	CouldNotCompressWorldArchive = 1 << 1,
-	CouldNotRestoreAutomaticSaving = 1 << 2,
+	None                             = 0,
+	CouldNotDeleteTemporaryDirectory = 1 << 0,
+	CouldNotCompressBackupArchive    = 1 << 1,
+	SomeFilesChangedDuringBackup     = 1 << 2,
 }
 
 public static class BackupCreationWarningsExtensions {
-	public static int Count(this BackupCreationWarnings warnings) {
-		return BitOperations.PopCount((byte) warnings);
-	}
+	extension(BackupCreationWarnings warnings) {
+		public int Count() {
+			return BitOperations.PopCount((byte) warnings);
+		}
 		
-	public static IEnumerable<BackupCreationWarnings> ListFlags(this BackupCreationWarnings warnings) {
-		return Enum.GetValues<BackupCreationWarnings>().Where(warning => warning != BackupCreationWarnings.None && warnings.HasFlag(warning));
+		public IEnumerable<BackupCreationWarnings> ListFlags() {
+			return Enum.GetValues<BackupCreationWarnings>().Where(warning => warning != BackupCreationWarnings.None && warnings.HasFlag(warning));
+		}
 	}
 }

Common/Phantom.Common.Data/Replies/ConfigureInstanceResult.cs

@@ -1,16 +1,16 @@
 namespace Phantom.Common.Data.Replies;
 
 public enum ConfigureInstanceResult : byte {
-	Success                      = 0,
-	CouldNotCreateInstanceFolder = 1,
+	Success                         = 0,
+	CouldNotCreateInstanceDirectory = 1,
 }
 
 public static class ConfigureInstanceResultExtensions {
 	public static string ToSentence(this ConfigureInstanceResult reason) {
 		return reason switch {
-			ConfigureInstanceResult.Success                      => "Success.",
-			ConfigureInstanceResult.CouldNotCreateInstanceFolder => "Could not create instance folder.",
-			_                                                    => "Unknown error.",
+			ConfigureInstanceResult.Success                         => "Success.",
+			ConfigureInstanceResult.CouldNotCreateInstanceDirectory => "Could not create instance directory.",
+			_                                                       => "Unknown error.",
 		};
 	}
 }

Controller/Phantom.Controller.Minecraft/MinecraftInstanceRecipes.Launch.cs

@@ -72,8 +72,6 @@ public sealed partial class MinecraftInstanceRecipes(MinecraftVersions minecraft
 		return ImmutableDictionary.From([
 			("server-port", configuration.ServerPort.ToString()),
 			("rcon.port", configuration.RconPort.ToString()),
-			("enable-rcon", "true"),
-			("sync-chunk-writes", "false"),
 		]);
 	}
 	

Controller/Phantom.Controller/AuthTokenFile.cs

@@ -19,8 +19,8 @@ abstract class AuthTokenFile {
 		this.certificate = certificate;
 	}
 	
-	public async Task<ConnectionKey?> CreateOrLoad(string folderPath) {
-		string filePath = Path.Combine(folderPath, fileName);
+	public async Task<ConnectionKey?> CreateOrLoad(string directoryPath) {
+		string filePath = Path.Combine(directoryPath, fileName);
 		
 		if (File.Exists(filePath)) {
 			try {

Controller/Phantom.Controller/CertificateFile.cs

@@ -11,8 +11,8 @@ sealed class CertificateFile(string name) {
 	
 	private readonly string fileName = name + ".pfx";
 	
-	public async Task<RpcServerCertificate?> CreateOrLoad(string folderPath) {
-		string filePath = Path.Combine(folderPath, fileName);
+	public async Task<RpcServerCertificate?> CreateOrLoad(string directoryPath) {
+		string filePath = Path.Combine(directoryPath, fileName);
 		
 		if (File.Exists(filePath)) {
 			try {

Controller/Phantom.Controller/Program.cs

@@ -22,12 +22,12 @@ PosixSignals.RegisterCancellation(shutdownCancellationTokenSource, static () =>
 	PhantomLogger.Root.InformationHeading("Stopping Phantom Panel controller...");
 });
 
-static void CreateFolderOrStop(string path, UnixFileMode chmod) {
+static void CreateDirectoryOrStop(string path, UnixFileMode chmod) {
 	if (!Directory.Exists(path)) {
 		try {
 			Directories.Create(path, chmod);
 		} catch (Exception e) {
-			PhantomLogger.Root.Fatal(e, "Error creating folder: {FolderName}", path);
+			PhantomLogger.Root.Fatal(e, "Error creating directory: {DirectoryName}", path);
 			throw StopProcedureException.Instance;
 		}
 	}
@@ -42,7 +42,7 @@ try {
 	var (agentRpcServerHost, webRpcServerHost, sqlConnectionString) = Variables.LoadOrStop();
 	
 	string secretsPath = Path.GetFullPath("./secrets");
-	CreateFolderOrStop(secretsPath, Chmod.URWX_GRX);
+	CreateDirectoryOrStop(secretsPath, Chmod.URWX_GRX);
 	
 	var agentCertificate = await new CertificateFile("agent").CreateOrLoad(secretsPath);
 	if (agentCertificate == null) {

Utils/Phantom.Utils/IO/StreamCopier.cs

@@ -3,7 +3,7 @@
 namespace Phantom.Utils.IO;
 
 public sealed class StreamCopier(int bufferSize = StreamCopier.DefaultBufferSize) : IDisposable {
-	private const int DefaultBufferSize = 81920;
+	private const int DefaultBufferSize = 65536;
 	
 	public event EventHandler<BufferEventArgs>? BufferReady;
 	

Web/Phantom.Web/Program.cs

@@ -21,12 +21,12 @@ PosixSignals.RegisterCancellation(shutdownCancellationTokenSource, static () =>
 	PhantomLogger.Root.InformationHeading("Stopping Phantom Panel web...");
 });
 
-static void CreateFolderOrStop(string path, UnixFileMode chmod) {
+static void CreateDirectoryOrStop(string path, UnixFileMode chmod) {
 	if (!Directory.Exists(path)) {
 		try {
 			Directories.Create(path, chmod);
 		} catch (Exception e) {
-			PhantomLogger.Root.Fatal(e, "Error creating folder: {FolderName}", path);
+			PhantomLogger.Root.Fatal(e, "Error creating directory: {DirectoryName}", path);
 			throw StopProcedureException.Instance;
 		}
 	}
@@ -46,7 +46,7 @@ try {
 	}
 	
 	string dataProtectionKeysPath = Path.GetFullPath("./keys");
-	CreateFolderOrStop(dataProtectionKeysPath, Chmod.URWX);
+	CreateDirectoryOrStop(dataProtectionKeysPath, Chmod.URWX);
 	
 	var administratorToken = TokenGenerator.Create(60);
 	var applicationProperties = new ApplicationProperties(fullVersion, TokenGenerator.GetBytesOrThrow(administratorToken));

Web/Phantom.Web/WebLauncher.cs

@@ -8,7 +8,7 @@ using ILogger = Serilog.ILogger;
 namespace Phantom.Web;
 
 static class WebLauncher {
-	internal sealed record Configuration(ILogger Logger, string Host, ushort Port, string BasePath, string DataProtectionKeyFolderPath, CancellationToken CancellationToken) {
+	internal sealed record Configuration(ILogger Logger, string Host, ushort Port, string BasePath, string DataProtectionKeyDirectoryPath, CancellationToken CancellationToken) {
 		public string HttpUrl => "http://" + Host + ":" + Port;
 	}
 	
@@ -35,7 +35,7 @@ static class WebLauncher {
 		builder.Services.AddSingleton<IHostLifetime>(new NullLifetime());
 		builder.Services.AddScoped(Navigation.Create(config.BasePath));
 		
-		builder.Services.AddDataProtection().PersistKeysToFileSystem(new DirectoryInfo(config.DataProtectionKeyFolderPath));
+		builder.Services.AddDataProtection().PersistKeysToFileSystem(new DirectoryInfo(config.DataProtectionKeyDirectoryPath));
 		
 		builder.Services.AddRazorPages(static options => options.RootDirectory = "/Layout");
 		builder.Services.AddServerSideBlazor();