ProtonSettings: do try to set STEAM_COMPAT_INSTALL_PATH if the game is not installed

loathingKernel · loathingKernel · commit 2dff3fd829ce · 2026-04-27T15:51:00.000+03:00
diff --git a/rare/components/tabs/settings/widgets/proton.py b/rare/components/tabs/settings/widgets/proton.py
@@ -149,8 +149,7 @@ def _on_tool_changed(self, index: int):
 
         steam_environ = steam.get_steam_environment(steam_tool, self.compat_edit.text())
         library_paths = steam_environ.get('STEAM_COMPAT_LIBRARY_PATHS', '')
-        if self.app_name != 'default':
-            install_path = self.rcore.get_game(self.app_name).install_path
+        if self.app_name != 'default' and (install_path := self.rcore.get_game(self.app_name).install_path):
             library_paths = (
                 ':'.join([library_paths, os.path.dirname(install_path)]) if library_paths else os.path.dirname(install_path)
             )

Original file line number	Diff line number	Diff line change
`@@ -149,8 +149,7 @@ def _on_tool_changed(self, index: int):`
`149`	`149`
`150`	`150`	`steam_environ = steam.get_steam_environment(steam_tool, self.compat_edit.text())`
`151`	`151`	`library_paths = steam_environ.get('STEAM_COMPAT_LIBRARY_PATHS', '')`
`152`		`- if self.app_name != 'default':`
`153`		`- install_path = self.rcore.get_game(self.app_name).install_path`
	`152`	`+ if self.app_name != 'default' and (install_path := self.rcore.get_game(self.app_name).install_path):`
`154`	`153`	`library_paths = (`
`155`	`154`	`':'.join([library_paths, os.path.dirname(install_path)]) if library_paths else os.path.dirname(install_path)`
`156`	`155`	`)`