[retro-gtk] core-descriptor: Check existence of module file in get_module_file()

[Adrien Plazas <aplazas src gnome org>]

commit c5dc74c996856603afbbdd0cea9ac1d049465be9
Author: theawless <theawless gmail com>
Date:   Tue Mar 14 20:18:42 2017 +0530

    core-descriptor: Check existence of module file in get_module_file()
    
    File.get_child(string name) returns a File even if no file with such
    name exists. Hence, check if this File points to anything else return
    null.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=779924

 retro-gtk/retro-core-descriptor.vala |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/retro-gtk/retro-core-descriptor.vala b/retro-gtk/retro-core-descriptor.vala
index 744004a..1bfbd2a 100644
--- a/retro-gtk/retro-core-descriptor.vala
+++ b/retro-gtk/retro-core-descriptor.vala
@@ -88,8 +88,11 @@ public class Retro.CoreDescriptor : Object {
                        return null;
 
                var module = get_module ();
+               var module_file = dir.get_child (module);
+               if (!module_file.query_exists ())
+                       return null;
 
-               return dir.get_child (module);
+               return module_file;
        }
 
        public bool has_platform (string platform) {