feat: fix orphaned OpenCode processes cleanup on restart or exit

CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+- Desktop: fixed orphaned OpenCode processes not being cleaned up on restart or exit.
+
+
 ## [1.5.0] - 2026-01-16
 
 - UI: added a new Files tab to browse workspace files directly from the interface.

packages/desktop/src-tauri/Cargo.lock

@@ -2977,7 +2977,7 @@ dependencies = [
 
 [[package]]
 name = "openchamber-desktop"
-version = "1.4.9"
+version = "1.5.0"
 dependencies = [
  "anyhow",
  "axum",

packages/desktop/src-tauri/src/opencode_manager.rs

@@ -451,13 +451,20 @@ impl OpenCodeManager {
     }
 
     async fn graceful_stop(&self) -> Result<()> {
+        let port_to_kill = self.current_port();
+
         let mut guard = self.child.lock().await;
         let Some(mut child) = guard.take() else {
+            // No child, but still kill by port in case of orphaned processes
+            drop(guard);
+            kill_process_on_port(port_to_kill);
             return Ok(());
         };
 
         if child.try_wait()?.is_some() {
-            // Already exited
+            // Already exited, but still clean up by port
+            drop(guard);
+            kill_process_on_port(port_to_kill);
             return Ok(());
         }
 
@@ -482,6 +489,8 @@ impl OpenCodeManager {
         match timeout(Duration::from_secs(3), child.wait()).await {
             Ok(_) => {
                 info!("[desktop:opencode] exited gracefully");
+                drop(guard);
+                kill_process_on_port(port_to_kill);
                 return Ok(());
             }
             Err(_) => {
@@ -501,10 +510,28 @@ impl OpenCodeManager {
             }
         }
 
+        drop(guard);
+        kill_process_on_port(port_to_kill);
+
         Ok(())
     }
 }
 
+fn kill_process_on_port(port: Option<u16>) {
+    let Some(port) = port else { return };
+
+    // Kill any process listening on our port to clean up orphaned children.
+    // The opencode CLI is a Node wrapper that spawns the actual binary as a child.
+    // Killing the wrapper doesn't kill the child, so we kill by port.
+    #[cfg(unix)]
+    {
+        use std::process::Command;
+        let _ = Command::new("sh")
+            .args(["-c", &format!("lsof -ti:{} | xargs kill -9 2>/dev/null || true", port)])
+            .output();
+    }
+}
+
 /// Check if CLI binary exists (can be called dynamically for polling)
 pub fn check_cli_exists() -> bool {
     if std::env::var("OPENCHAMBER_DISABLE_CLI").is_ok() {