[gnome-software] trivial: Never notify about updates when there are none

[Richard Hughes <rhughes src gnome org>]

commit 78ef62038ee955de64c573ddd5e6d3b0f0104229
Author: Richard Hughes <richard hughsie com>
Date:   Fri Jun 3 08:56:24 2016 +0100

    trivial: Never notify about updates when there are none
    
    This is fallout from GsAppList.

 src/gs-update-monitor.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/src/gs-update-monitor.c b/src/gs-update-monitor.c
index 3b884e1..e486933 100644
--- a/src/gs-update-monitor.c
+++ b/src/gs-update-monitor.c
@@ -164,11 +164,16 @@ get_updates_finished_cb (GObject *object,
        /* get result */
        apps = gs_plugin_loader_get_updates_finish (GS_PLUGIN_LOADER (object), res, &error);
        if (apps == NULL) {
+               if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+                       g_warning ("failed to get updates: %s", error->message);
+               return;
+       }
+
+       /* no updates */
+       if (gs_app_list_length (apps) == 0) {
                g_debug ("no updates; withdrawing updates-available notification");
                g_application_withdraw_notification (monitor->application,
                                                     "updates-available");
-               if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
-                       g_warning ("failed to get updates: %s", error->message);
                return;
        }