MindWorkAI/AI-Studio
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Improved how AI Studio saves its files (#1201)

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Thorsten Sommer authored and GitHub committed 2026-11-14 21:16:40 +01:00
1 parent b7255694cd
commit dc97db256e
24 files changed
+626 -258
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app/MindWork AI Studio/Tools/WorkspaceBehaviour.cs
+14 -24
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@@ -938,13 +938,9 @@ public static partial class WorkspaceBehaviour
Directory.CreateDirectory(chatDirectory);
FinalizeStagedTranscripts(chat, chatDirectory);
var chatNamePath = Path.Join(chatDirectory, "name");
await File.WriteAllTextAsync(chatNamePath, chat.Name);
await StoreChatFilesAsync(chat, chatDirectory);
var chatPath = Path.Join(chatDirectory, "thread.json");
await File.WriteAllTextAsync(chatPath, JsonSerializer.Serialize(chat, JSON_OPTIONS), Encoding.UTF8);
var lastEditTime = File.GetLastWriteTimeUtc(chatPath);
var lastEditTime = File.GetLastWriteTimeUtc(Path.Join(chatDirectory, "thread.json"));
await UpdateCacheAfterChatStored(chat.WorkspaceId, chat.ChatId, chatDirectory, chat.Name, lastEditTime);
return true;
}
@@ -1174,7 +1170,7 @@ public static partial class WorkspaceBehaviour
movedChat.WorkspaceId = targetWorkspaceId;
FinalizeStagedTranscripts(movedChat, targetDirectory);
await StoreMovedChatFilesAsync(movedChat, targetDirectory);
await StoreChatFilesAsync(movedChat, targetDirectory);
var lastEditTime = File.GetLastWriteTimeUtc(Path.Join(targetDirectory, "thread.json"));
await UpdateCacheAfterChatMoved(sourceWorkspaceId, targetWorkspaceId, chat.ChatId, targetDirectory, movedChat.Name, lastEditTime);
@@ -1202,7 +1198,7 @@ public static partial class WorkspaceBehaviour
Directory.Move(targetDirectory, sourceDirectory);
if (movedChat is not null && Directory.Exists(sourceDirectory))
await StoreMovedChatFilesAsync(movedChat, sourceDirectory);
await StoreChatFilesAsync(movedChat, sourceDirectory);
}
catch (Exception rollbackError)
{
@@ -1229,23 +1225,17 @@ public static partial class WorkspaceBehaviour
return JsonSerializer.Deserialize<ChatThread>(chatData, JSON_OPTIONS) ?? throw new InvalidDataException($"The stored chat could not be read: '{chatDirectory}'.");
}
/// <summary>Atomically stores the name and thread after a directory move.</summary>
private static async Task StoreMovedChatFilesAsync(ChatThread chat, string chatDirectory)
/// <summary>Stores the name and the thread of a chat into its directory.</summary>
/// <remarks>
/// Both files are written atomically: a crash of AI Studio while storing leaves each of them as it was before,
/// never half written. The thread keeps its UTF-8 byte order mark, the name has none, as before.
/// </remarks>
/// <param name="chat">The chat to store.</param>
/// <param name="chatDirectory">The directory of the chat, which has to exist.</param>
private static async Task StoreChatFilesAsync(ChatThread chat, string chatDirectory)
{
await File.WriteAllTextAsync(Path.Join(chatDirectory, "name"), chat.Name);
var chatPath = Path.Join(chatDirectory, "thread.json");
var temporaryPath = Path.Join(chatDirectory, $".thread-{Guid.NewGuid():N}.tmp");
try
{
await File.WriteAllTextAsync(temporaryPath, JsonSerializer.Serialize(chat, JSON_OPTIONS), Encoding.UTF8);
File.Move(temporaryPath, chatPath, overwrite: true);
}
finally
{
if (File.Exists(temporaryPath))
File.Delete(temporaryPath);
}
await AtomicFile.WriteTextAsync(Path.Join(chatDirectory, "name"), chat.Name, new UTF8Encoding(false), CancellationToken.None, logger: LOG);
await AtomicFile.WriteTextAsync(Path.Join(chatDirectory, "thread.json"), JsonSerializer.Serialize(chat, JSON_OPTIONS), Encoding.UTF8, CancellationToken.None, logger: LOG);
}
/// <summary>Rewrites absolute file paths after moving the complete chat directory.</summary>