[gnome-builder] gsettings: handle missing language for file settings

[Christian Hergert <chergert src gnome org>]

commit d05a8c865f85410b27f183b7cdec8d3881479799
Author: Christian Hergert <chergert redhat com>
Date:   Tue Nov 22 20:31:52 2016 -0800

    gsettings: handle missing language for file settings
    
    If we don't have a GtkSourceLanguage, fallback to a non-existant language
    id "plain-text". Without this, we don't get default values for GSettings
    which means things like "overwrite-braces" are not set.

 libide/gsettings/ide-gsettings-file-settings.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/libide/gsettings/ide-gsettings-file-settings.c b/libide/gsettings/ide-gsettings-file-settings.c
index 4ad7fe3..ab675c8 100644
--- a/libide/gsettings/ide-gsettings-file-settings.c
+++ b/libide/gsettings/ide-gsettings-file-settings.c
@@ -85,12 +85,13 @@ file_notify_language_cb (IdeGsettingsFileSettings *self,
   g_clear_object (&self->language_settings);
 
   language = ide_file_get_language (file);
+
   if (language == NULL)
-    IDE_EXIT;
+    lang_id = "plain-text";
+  else
+    lang_id = gtk_source_language_get_id (language);
 
-  lang_id = gtk_source_language_get_id (language);
-  if (lang_id == NULL)
-    IDE_EXIT;
+  g_assert (lang_id != NULL);
 
   context = ide_object_get_context (IDE_OBJECT (self));
   relative_path = g_strdup_printf ("/editor/language/%s/", lang_id);