unity debugging

unity-debug/patch.cs

@@ -0,0 +1,20 @@
+// Patches vscode-unity-debug's UnityProcessDiscovery.GetUnityEditorProcesses to
+// prefix-match process names instead of requiring an exact "Unity"/"Unity Editor".
+// The comparison is OrdinalIgnoreCase, so the "Unity" prefix then matches editors
+// launched directly ("Unity") and via Unity Hub ("unityhub-unity-editor-<version>").
+// Extra matches (UnityPackageManager etc.) are fine: with a config name containing
+// "Editor", the adapter picks the editor by process_id from EditorInstance.json.
+using System; using System.Linq; using Mono.Cecil;
+class Patch {
+    static int Main(string[] a) {
+        var asm = AssemblyDefinition.ReadAssembly(a[0]);
+        var m = asm.MainModule.Types.SelectMany(t => t.Methods).Single(x => x.Name == "GetUnityEditorProcesses");
+        var startsWith = asm.MainModule.ImportReference(typeof(string).GetMethod("StartsWith", new[] { typeof(string), typeof(StringComparison) }));
+        int c = 0;
+        foreach (var i in m.Body.Instructions)
+            if (i.Operand is MethodReference r && r.DeclaringType.FullName == "System.String" && r.Name == "Equals" && r.Parameters.Count == 2) { i.Operand = startsWith; c++; }
+        if (c != 1) { Console.Error.WriteLine($"expected 1 string.Equals call in {m.Name}, found {c}"); return 1; }
+        asm.Write(a[1]);
+        return 0;
+    }
+}