Skip to content

fix: use DataDir hash in IPC pipe name to isolate instances with different data dirs #2552

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
love-linger merged 1 commit into from
Jul 21, 2026
+12 −2
Merged

fix: use DataDir hash in IPC pipe name to isolate instances with different data dirs #2552

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 12 additions & 2 deletions src/Models/IpcChannel.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
using System;
using System.IO;
using System.IO.Pipes;
using System.Security.Cryptography;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

Expand All @@ -19,7 +21,7 @@ public IpcChannel()
_singletonLock = File.Open(Path.Combine(Native.OS.DataDir, "process.lock"), FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
IsFirstInstance = true;
_server = new NamedPipeServerStream(
"SourceGitIPCChannel" + Environment.UserName,
GetPipeName(),
PipeDirection.In,
-1,
PipeTransmissionMode.Byte,
Expand All @@ -37,7 +39,7 @@ public void SendToFirstInstance(string cmd)
{
try
{
using (var client = new NamedPipeClientStream(".", "SourceGitIPCChannel" + Environment.UserName, PipeDirection.Out, PipeOptions.Asynchronous | PipeOptions.CurrentUserOnly))
using (var client = new NamedPipeClientStream(".", GetPipeName(), PipeDirection.Out, PipeOptions.Asynchronous | PipeOptions.CurrentUserOnly))
{
client.Connect(1000);
if (!client.IsConnected)
Expand Down Expand Up @@ -67,6 +69,14 @@ public void Dispose()
_singletonLock?.Dispose();
}

private static string GetPipeName()
{
var dataDir = Native.OS.DataDir.Replace('\\', '/').TrimEnd('/');
var hash = SHA256.HashData(Encoding.UTF8.GetBytes(dataDir));
var hashStr = Convert.ToHexString(hash)[..16];
return $"SourceGitIPCChannel{Environment.UserName}_{hashStr}";
}

private async void StartServer()
{
using var reader = new StreamReader(_server);
Expand Down