[tracker-miners/wip/carlosg/cli-split: 2/5] tracker: Drop TrackerDBManager dependency from tracker-reset subcommand

[Carlos Garnacho <carlosg src gnome org>]

commit f8bb48fdaa1e414268b3f805e0ffc3e0c35493e5
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Dec 19 17:54:21 2019 +0100

    tracker: Drop TrackerDBManager dependency from tracker-reset subcommand
    
    We just want to reset the database, it suffices with deleting the related
    database files.

 src/tracker/tracker-reset.c | 127 +++++++++++++++++---------------------------
 1 file changed, 48 insertions(+), 79 deletions(-)
---
diff --git a/src/tracker/tracker-reset.c b/src/tracker/tracker-reset.c
index 2ed92d6a3..0b4933aca 100644
--- a/src/tracker/tracker-reset.c
+++ b/src/tracker/tracker-reset.c
@@ -62,32 +62,6 @@ static GOptionEntry entries[] = {
        { NULL }
 };
 
-static void
-log_handler (const gchar    *domain,
-             GLogLevelFlags  log_level,
-             const gchar    *message,
-             gpointer        user_data)
-{
-       switch (log_level) {
-       case G_LOG_LEVEL_WARNING:
-       case G_LOG_LEVEL_CRITICAL:
-       case G_LOG_LEVEL_ERROR:
-       case G_LOG_FLAG_RECURSION:
-       case G_LOG_FLAG_FATAL:
-               g_fprintf (stderr, "%s\n", message);
-               fflush (stderr);
-               break;
-       case G_LOG_LEVEL_MESSAGE:
-       case G_LOG_LEVEL_INFO:
-       case G_LOG_LEVEL_DEBUG:
-       case G_LOG_LEVEL_MASK:
-       default:
-               g_fprintf (stdout, "%s\n", message);
-               fflush (stdout);
-               break;
-       }
-}
-
 static int
 delete_info_recursively (GFile *file)
 {
@@ -162,11 +136,53 @@ error:
        return EXIT_FAILURE;
 }
 
-static gint
-reset_run (void)
+static void
+delete_databases (GFile *dir)
 {
+       GFileEnumerator *enumerator;
        GError *error = NULL;
+       GFileInfo *info;
+
+       enumerator = g_file_enumerate_children (dir,
+                                               G_FILE_ATTRIBUTE_STANDARD_NAME,
+                                               G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
+                                               NULL, &error);
+       if (error) {
+               g_critical ("Location does not have a Tracker DB: %s",
+                           error->message);
+               g_error_free (error);
+               return;
+       }
+
+       while ((info = g_file_enumerator_next_file (enumerator, NULL, NULL)) != NULL) {
+               const gchar *name;
+               GFile *child;
+
+               name = g_file_info_get_name (info);
+
+               /* Delete sqlite files in the location */
+               if (g_str_has_suffix (name, ".db") ||
+                   g_str_has_suffix (name, ".db-wal") ||
+                   g_str_has_suffix (name, ".db-shm")) {
+                       child = g_file_enumerator_get_child (enumerator, info);
+
+                       if (!g_file_delete (child, NULL, &error)) {
+                               g_critical ("Failed to delete '%s': %s",
+                                           g_file_info_get_name (info),
+                                           error->message);
+                               g_error_free (error);
+                       }
+
+                       g_object_unref (child);
+               }
+       }
 
+       g_object_unref (enumerator);
+}
+
+static gint
+reset_run (void)
+{
        if (hard_reset && soft_reset) {
                g_printerr ("%s\n",
                            /* TRANSLATORS: --hard and --soft are commandline arguments */
@@ -216,59 +232,15 @@ reset_run (void)
        }
 
        if (hard_reset || soft_reset) {
-               guint log_handler_id;
-               GFile *cache_location, *data_location;
+               GFile *cache_location;
                gchar *dir;
-               TrackerDBManager *db_manager;
 
                dir = g_build_filename (g_get_user_cache_dir (), "tracker", NULL);
                cache_location = g_file_new_for_path (dir);
                g_free (dir);
 
-               dir = g_build_filename (g_get_user_data_dir (), "tracker", "data", NULL);
-               data_location = g_file_new_for_path (dir);
-               g_free (dir);
-
-               /* Set log handler for library messages */
-               log_handler_id = g_log_set_handler (NULL,
-                                                   G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL,
-                                                   log_handler,
-                                                   NULL);
-
-               g_log_set_default_handler (log_handler, NULL);
-
-               /* Clean up (select_cache_size and update_cache_size don't matter here) */
-               db_manager = tracker_db_manager_new (TRACKER_DB_MANAGER_REMOVE_ALL,
-                                                    cache_location, data_location,
-                                                    NULL,
-                                                    FALSE,
-                                                    FALSE,
-                                                    100,
-                                                    100,
-                                                    NULL,
-                                                    NULL,
-                                                    NULL,
-                                                    NULL,
-                                                    NULL,
-                                                    &error);
-
-               if (!db_manager) {
-                       g_message ("Error initializing database: %s", error->message);
-                       g_free (error);
-
-                       return EXIT_FAILURE;
-               }
-
-               tracker_db_manager_remove_all (db_manager);
-
-               g_object_unref (db_manager);
-
-               /* Unset log handler */
-               g_log_remove_handler (NULL, log_handler_id);
-
-               if (!remove_config) {
-                       return EXIT_SUCCESS;
-               }
+               delete_databases (cache_location);
+               g_object_unref (cache_location);
        }
 
        if (remove_config) {
@@ -312,10 +284,7 @@ reset_run (void)
                return EXIT_SUCCESS;
        }
 
-       /* All known options have their own exit points */
-       g_warn_if_reached ();
-
-       return EXIT_FAILURE;
+       return EXIT_SUCCESS;
 }
 
 static int