[tracker-miners: 3/4] tracker-miner-rss: Added a --delete option to delete feeds

[Carlos Garnacho <carlosg src gnome org>]

commit 16b8d0920ba5a87f0748945207c86246111d469b
Author: Éloi Rivard <eloi rivard aquilenet fr>
Date:   Mon Jun 20 18:44:57 2022 +0200

    tracker-miner-rss: Added a --delete option to delete feeds

 src/miners/rss/tracker-main.c | 48 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)
---
diff --git a/src/miners/rss/tracker-main.c b/src/miners/rss/tracker-main.c
index c7e9d7c13..617a5c1a5 100644
--- a/src/miners/rss/tracker-main.c
+++ b/src/miners/rss/tracker-main.c
@@ -34,6 +34,7 @@
 
 static gchar *add_feed;
 static gchar *list_feeds;
+static gchar *delete_feed;
 static gchar *title;
 static gchar *domain_ontology_name = NULL;
 
@@ -52,6 +53,11 @@ static GOptionEntry entries[] = {
          /* Translators: this is a "feed" as in RSS */
          N_("List feeds"),
          NULL },
+       { "delete-feed", 'x', 0,
+         G_OPTION_ARG_STRING, &delete_feed,
+         /* Translators: this is a "feed" as in RSS */
+         N_("Delete feed"),
+         N_("URL") },
        { "domain-ontology", 'd', 0,
          G_OPTION_ARG_STRING, &domain_ontology_name,
          N_("Runs for a specific domain ontology"),
@@ -189,8 +195,45 @@ handle_add_feed_option(GOptionContext *context)
                return EXIT_FAILURE;
        }
 
-       g_print ("Done\n");
+       return EXIT_SUCCESS;
+}
+
+int
+handle_remove_feed_option(GOptionContext *context)
+{
+       TrackerSparqlConnection *connection;
+       GError *error = NULL;
+       gchar* query = g_strdup_printf("DELETE WHERE { "
+                                      "    ?feed a mfo:FeedChannel ."
+                                      "    ?feed nie:url \"%s\""
+                                      "}",
+                                      delete_feed);
+
+       connection = tracker_sparql_connection_bus_new ("org.freedesktop.Tracker3.Miner.RSS",
+                                                       NULL, NULL, &error);
+       if (!connection) {
+               g_printerr ("%s: %s\n",
+                           _("Could not establish a connection to Tracker"),
+                           error ? error->message : _("No error given"));
+               g_clear_error (&error);
+               return EXIT_FAILURE;
+       }
 
+       tracker_sparql_connection_update (connection,
+                                         query,
+                                         NULL,
+                                         &error);
+       if (error) {
+               g_printerr ("%s, %s\n",
+                           _("Could not remove feed"),
+                           error->message);
+               g_error_free (error);
+               g_object_unref (connection);
+
+               return EXIT_FAILURE;
+       }
+
+       g_print ("Done\n");
        return EXIT_SUCCESS;
 }
 
@@ -390,5 +433,8 @@ main (int argc, char **argv)
        if (list_feeds)
                return handle_list_feeds_option(context);
 
+       if (delete_feed)
+               return handle_remove_feed_option(context);
+
        return handle_default();
 }