[nautilus] directory: Warn if extension point not registered

[Ernestas Kulik <ernestask src gnome org>]

commit eef267bf9db8b208927b3022db62e7ab61b1ffe0
Author: Ernestas Kulik <ernestask gnome org>
Date:   Sat Mar 24 22:02:29 2018 +0200

    directory: Warn if extension point not registered

 src/nautilus-directory.c | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/src/nautilus-directory.c b/src/nautilus-directory.c
index 8bb2ce74f..0ab13dbbe 100644
--- a/src/nautilus-directory.c
+++ b/src/nautilus-directory.c
@@ -699,6 +699,10 @@ nautilus_directory_provider_get_all (void)
     GList *extensions;
 
     extension_point = g_io_extension_point_lookup (NAUTILUS_DIRECTORY_PROVIDER_EXTENSION_POINT_NAME);
+    if (extension_point == NULL)
+    {
+        g_warning ("Directory provider extension point not registered. Did you call 
nautilus_ensure_extension_points()?");
+    }
     extensions = g_io_extension_point_get_extensions (extension_point);
 
     return extensions;