[gnome-software] Show a warning when more than one app matches a wildcard

[Richard Hughes <rhughes src gnome org>]

commit 8a44990e1ce3ec94a293a62c6535871c52d3eafc
Author: Richard Hughes <richard hughsie com>
Date:   Thu May 26 19:09:27 2016 +0100

    Show a warning when more than one app matches a wildcard

 src/plugins/gs-plugin-appstream.c |   15 +++++++++++++--
 1 files changed, 13 insertions(+), 2 deletions(-)
---
diff --git a/src/plugins/gs-plugin-appstream.c b/src/plugins/gs-plugin-appstream.c
index bef69b8..6c30270 100644
--- a/src/plugins/gs-plugin-appstream.c
+++ b/src/plugins/gs-plugin-appstream.c
@@ -238,6 +238,7 @@ gs_plugin_refine_from_id (GsPlugin *plugin,
        /* find the best app when matching any prefixes */
        if (gs_app_has_quirk (app, AS_APP_QUIRK_MATCH_ANY_PREFIX)) {
                g_autoptr(GPtrArray) items = NULL;
+
                items = as_store_get_apps_by_id (priv->store, id);
                for (i = 0; i < items->len; i++) {
                        AsApp *item_tmp = NULL;
@@ -252,10 +253,20 @@ gs_plugin_refine_from_id (GsPlugin *plugin,
                                continue;
                        }
 
-                       /* we could match more than one, so list all and return
-                        * the last entry -- fingers crossed it's only one... */
+
+                       /* already set! */
+                       if (item != NULL) {
+                               g_warning ("found duplicate %s for wildcard %s",
+                                          as_app_get_id (item_tmp),
+                                          id);
+                               continue;
+                       }
+
+                       /* only match the first entry */
                        g_debug ("found %s for wildcard %s",
                                 as_app_get_id (item_tmp), id);
+
+                       /* refine using this */
                        item = item_tmp;
                }
        } else {