Provide WINEBIN as a variable in scripts

lutris/installer/commands.py

@@ -362,6 +362,11 @@ class CommandsMixin:
             runner_name = self.installer.runner
         return runner_name, task_name
 
+    def get_wine_path(self):
+        """Return absolute path of wine version used during the install"""
+        wine_version = self._get_runner_version()
+        return get_wine_version_exe(wine_version)
+
     def task(self, data):
         """Directive triggering another function specific to a runner.
 
@@ -373,12 +378,10 @@ class CommandsMixin:
             GLib.idle_add(self.parent.cancel_button.set_sensitive, False)
         runner_name, task_name = self._get_task_runner_and_name(data.pop("name"))
 
-        wine_version = None
-
         if runner_name.startswith("wine"):
-            wine_version = self._get_runner_version()
-            if wine_version:
-                data["wine_path"] = get_wine_version_exe(wine_version)
+            wine_path = self.get_wine_path()
+            if wine_path:
+                data["wine_path"] = wine_path
             data["prefix"] = data.get("prefix") \
                 or self.installer.script.get("game", {}).get("prefix") \
                 or "$GAMEDIR"

lutris/installer/interpreter.py

@@ -88,10 +88,6 @@ class ScriptInterpreter(GObject.Object, CommandsMixin):
             self.installer.script.get('system', {}).get('env', {}).items()
         }
 
-    # --------------------------
-    # "Initial validation" stage
-    # --------------------------
-
     @staticmethod
     def _get_installed_dependency(dependency):
         """Return whether a dependency is installed"""
@@ -390,6 +386,7 @@ class ScriptInterpreter(GObject.Object, CommandsMixin):
             "RESOLUTION": "x".join(self.current_resolution),
             "RESOLUTION_WIDTH": self.current_resolution[0],
             "RESOLUTION_HEIGHT": self.current_resolution[1],
+            "WINEBIN": self.get_wine_path(),
         }
         replacements.update(self.installer.variables)
         # Add 'INPUT_<id>' replacements for user inputs with an id