lightweight variant

CursorLang.Agent/Program.cs

@@ -0,0 +1,38 @@
+using CursorLang.Core.Services;
+
+namespace CursorLang.Agent;
+
+internal static class Program
+{
+    /// <summary>
+    /// A single-threaded apartment because of the caret: <c>AccessibleObjectFromWindow</c>
+    /// and UI Automation both go through COM, and both expect the thread that calls them
+    /// to be an STA one.
+    /// </summary>
+    [STAThread]
+    private static int Main(string[] arguments)
+    {
+        bool automatic = StartupLaunch.IsAutomatic(arguments);
+
+        var gate = new SingleInstanceGate(SingleInstanceGate.AgentName);
+
+        // A second launch is the user asking for the application, so the one already
+        // running opens the settings window and this one steps aside. A second launch
+        // by Windows at sign-in asks for nothing and gets nothing
+        if (!gate.TryAcquire(showRunningInstance: !automatic))
+        {
+            gate.Dispose();
+            return 0;
+        }
+
+        try
+        {
+            using var agent = new Agent(gate);
+            return agent.Run(automatic);
+        }
+        finally
+        {
+            gate.Dispose();
+        }
+    }
+}