[tracker-miners/wip/carlosg/miner-changes: 4/19] tracker-miner-fs: Do not set up nie:InformationElements for files

[Carlos Garnacho <carlosg src gnome org>]

commit 4312c2287af5ae7cddfe2f8139a47f89df4d4012
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Jun 12 16:06:06 2020 +0200

    tracker-miner-fs: Do not set up nie:InformationElements for files
    
    Of all nie:InformationElement subclasses, tracker-miner-fs only deals
    with nfo:Folder. Stop paving the way for tracker-extract here, and
    constrain everything within the tracker:FileSystem graph.

 src/miners/fs/tracker-miner-files.c | 51 +++++++++++++------------------------
 1 file changed, 17 insertions(+), 34 deletions(-)
---
diff --git a/src/miners/fs/tracker-miner-files.c b/src/miners/fs/tracker-miner-files.c
index ad4e95818..286b0636d 100644
--- a/src/miners/fs/tracker-miner-files.c
+++ b/src/miners/fs/tracker-miner-files.c
@@ -2033,25 +2033,17 @@ miner_files_add_mount_info (TrackerMinerFiles *miner,
 }
 
 static TrackerResource *
-miner_files_create_information_element (TrackerMinerFiles *miner,
-                                        GFile             *file,
-                                        const gchar       *mime_type,
-                                        gboolean           is_directory)
+miner_files_create_folder_information_element (TrackerMinerFiles *miner,
+                                              GFile             *file,
+                                              const gchar       *mime_type,
+                                              gboolean           is_directory)
 {
        TrackerResource *resource, *file_resource;
-       GStrv rdf_types;
        const gchar *urn = NULL;
        gchar *uri;
-       gint i = 0;
-
-       rdf_types = tracker_extract_module_manager_get_rdf_types (mime_type);
-
-       if (!rdf_types)
-               return NULL;
 
        /* Preserve URN for nfo:Folders */
-       if (is_directory)
-               urn = tracker_miner_fs_get_urn (TRACKER_MINER_FS (miner), file);
+       urn = tracker_miner_fs_get_urn (TRACKER_MINER_FS (miner), file);
 
        resource = tracker_resource_new (urn);
        tracker_resource_set_string (resource, "nie:mimeType", mime_type);
@@ -2082,13 +2074,6 @@ miner_files_create_information_element (TrackerMinerFiles *miner,
        tracker_resource_add_uri (file_resource, "nie:interpretedAs",
                                  tracker_resource_get_identifier (resource));
 
-       while (rdf_types[i]) {
-               tracker_resource_add_uri (resource, "rdf:type", rdf_types[i]);
-               i++;
-       }
-
-       g_strfreev (rdf_types);
-
        return resource;
 }
 
@@ -2154,7 +2139,7 @@ process_file_cb (GObject      *object,
                  gpointer      user_data)
 {
        TrackerMinerFilesPrivate *priv;
-       TrackerResource *resource, *element_resource;
+       TrackerResource *resource, *folder_resource = NULL;
        ProcessFileData *data;
        const gchar *mime_type;
        gchar *parent_urn;
@@ -2251,26 +2236,24 @@ process_file_cb (GObject      *object,
        /* The URL of the DataObject (because IE = DO, this is correct) */
        tracker_resource_set_string (resource, "nie:url", uri);
 
-       element_resource = miner_files_create_information_element (data->miner,
-                                                                  file,
-                                                                  mime_type,
-                                                                  is_directory);
+       if (is_directory) {
+               folder_resource =
+                       miner_files_create_folder_information_element (data->miner,
+                                                                      file,
+                                                                      mime_type,
+                                                                      is_directory);
+       }
 
-       miner_files_add_to_datasource (data->miner, file, resource, element_resource);
+       miner_files_add_to_datasource (data->miner, file, resource, folder_resource);
 
        mount_point_sparql = update_mount_point_sparql (data);
        sparql_update_str = tracker_resource_print_sparql_update (resource, NULL, DEFAULT_GRAPH);
 
-       if (element_resource) {
-               const gchar *graph;
-
-               graph = tracker_extract_module_manager_get_graph (mime_type);
-               ie_update_str = tracker_resource_print_sparql_update (element_resource,
+       if (folder_resource) {
+               ie_update_str = tracker_resource_print_sparql_update (folder_resource,
                                                                      NULL,
-                                                                     graph ?
-                                                                     graph :
                                                                      DEFAULT_GRAPH);
-               g_object_unref (element_resource);
+               g_object_unref (folder_resource);
        }
 
        sparql_str = g_strdup_printf ("%s %s %s %s",