[gnome-games] retro: Add RetroRunner.get_module_path()

[Adrien Plazas <aplazas src gnome org>]

commit 59fa017a71a630743bf34e620f9006b39b62ab2e
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Wed Aug 10 15:30:50 2016 +0200

    retro: Add RetroRunner.get_module_path()
    
    Move the code looking for the modules to its own function.
    
    This is needd to avoid cluttering prepare_core() as it will be expanded
    in the next commit.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=769678

 src/retro/retro-runner.vala |   15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)
---
diff --git a/src/retro/retro-runner.vala b/src/retro/retro-runner.vala
index e760537..ce58451 100644
--- a/src/retro/retro-runner.vala
+++ b/src/retro/retro-runner.vala
@@ -156,11 +156,7 @@ public class Games.RetroRunner : Object, Runner {
        }
 
        private void prepare_core (string module_basename, string uri) throws Error {
-               var module_path = Retro.search_module (module_basename);
-               var module = File.new_for_path (module_path);
-               if (!module.query_exists ())
-                       throw new RetroError.MODULE_NOT_FOUND (_("Couldn't run game: module '%s' not 
found."), module_basename);
-
+               var module_path = get_module_path ();
                core = new Retro.Core (module_path);
                audio = new RetroGtk.PaPlayer ();
                options = new Retro.Options ();
@@ -179,6 +175,15 @@ public class Games.RetroRunner : Object, Runner {
                        throw new RetroError.INVALID_GAME_FILE (_("Invalid game file: '%s'."), uri);
        }
 
+       private string get_module_path () throws Error {
+               var module_path = Retro.search_module (module_basename);
+               var module = File.new_for_path (module_path);
+               if (module.query_exists ())
+                       return module_path;
+
+               throw new RetroError.MODULE_NOT_FOUND (_("Couldn't run game: module '%s' not found."), 
module_basename);
+       }
+
        private bool try_load_game (Retro.Core core, string uri) {
                var file = File.new_for_uri (uri);
                var path = file.get_path ();