[gnome-software] snap: Use the global cache to store snap GsApp objects in.

[Robert Ancell <rancell src gnome org>]

commit 0dd83b99f5d83880b453b5f4984ffed5f1eadc95
Author: Robert Ancell <robert ancell canonical com>
Date:   Fri Sep 1 16:15:39 2017 +1200

    snap: Use the global cache to store snap GsApp objects in.
    
    This make the shell search feature work.

 plugins/snap/gs-plugin-snap.c |   30 +++++++++++++++++++++---------
 1 files changed, 21 insertions(+), 9 deletions(-)
---
diff --git a/plugins/snap/gs-plugin-snap.c b/plugins/snap/gs-plugin-snap.c
index 8ef0633..10dafe6 100644
--- a/plugins/snap/gs-plugin-snap.c
+++ b/plugins/snap/gs-plugin-snap.c
@@ -65,6 +65,9 @@ gs_plugin_initialize (GsPlugin *plugin)
        /* Override hardcoded popular apps */
        gs_plugin_add_rule (plugin, GS_PLUGIN_RULE_RUN_BEFORE, "hardcoded-popular");
 
+       /* set plugin flags */
+       gs_plugin_add_flags (plugin, GS_PLUGIN_FLAGS_GLOBAL_CACHE);
+
        /* set name of MetaInfo file */
        gs_plugin_set_appstream_id (plugin, "org.gnome.Software.Plugin.Snap");
 }
@@ -236,34 +239,43 @@ static GsApp *
 snap_to_app (GsPlugin *plugin, SnapdSnap *snap)
 {
        GsPluginData *priv = gs_plugin_get_data (plugin);
-       GsApp *app;
+       g_autofree gchar *unique_id = NULL;
+       GsApp *cached_app;
+       g_autoptr(GsApp) app = NULL;
 
-       /* create a unique ID for deduplication, TODO: branch? */
-       app = gs_app_new (snapd_snap_get_name (snap));
        switch (snapd_snap_get_snap_type (snap)) {
        case SNAPD_SNAP_TYPE_APP:
-               gs_app_set_kind (app, AS_APP_KIND_DESKTOP);
+               unique_id = g_strdup_printf ("system/snap/*/desktop/%s/*", snapd_snap_get_name (snap));
                break;
        case SNAPD_SNAP_TYPE_KERNEL:
        case SNAPD_SNAP_TYPE_GADGET:
        case SNAPD_SNAP_TYPE_OS:
-               gs_app_set_kind (app, AS_APP_KIND_RUNTIME);
-               gs_app_add_quirk (app, AS_APP_QUIRK_NOT_LAUNCHABLE);
+               unique_id = g_strdup_printf ("system/snap/*/runtime/%s/*", snapd_snap_get_name (snap));
                break;
         default:
        case SNAPD_SNAP_TYPE_UNKNOWN:
                 break;
        }
-       gs_app_set_scope (app, AS_APP_SCOPE_SYSTEM);
-       gs_app_set_bundle_kind (app, AS_BUNDLE_KIND_SNAP);
+
+       cached_app = gs_plugin_cache_lookup (plugin, unique_id);
+       if (cached_app == NULL) {
+               app = gs_plugin_app_new (plugin, NULL);
+               gs_app_set_from_unique_id (app, unique_id);
+               gs_plugin_cache_add (plugin, unique_id, app);
+       }
+       else
+               app = g_object_ref (cached_app);
+
        gs_app_set_management_plugin (app, "snap");
        gs_app_add_quirk (app, AS_APP_QUIRK_NOT_REVIEWABLE);
+       if (gs_app_get_kind (app) != AS_APP_KIND_DESKTOP)
+               gs_app_add_quirk (app, AS_APP_QUIRK_NOT_LAUNCHABLE);
        if (gs_plugin_check_distro_id (plugin, "ubuntu"))
                gs_app_add_quirk (app, AS_APP_QUIRK_PROVENANCE);
        if (priv->system_confinement == SNAPD_SYSTEM_CONFINEMENT_STRICT && snapd_snap_get_confinement (snap) 
== SNAPD_CONFINEMENT_STRICT)
                gs_app_add_kudo (app, GS_APP_KUDO_SANDBOXED);
 
-       return app;
+       return g_steal_pointer (&app);
 }
 
 gboolean