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/* nautilus-tracker-utilities.c
*
* Copyright 2019 Carlos Soriano <csoriano@redhat.com>
* Copyright 2020 Sam Thursfield <sam@afuera.me.uk>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#include "config.h"
#include "nautilus-tracker-utilities.h"
#include "nautilus-global-preferences.h"
#define TRACKER_KEY_RECURSIVE_DIRECTORIES "index-recursive-directories"
#define TRACKER_KEY_SINGLE_DIRECTORIES "index-single-directories"
/* Shared global connection to Tracker Miner FS */
static const gchar *tracker_miner_fs_busname = NULL;
static TrackerSparqlConnection *tracker_miner_fs_connection = NULL;
static GError *tracker_miner_fs_error = NULL;
static gboolean
get_host_tracker_miner_fs (GError **error)
{
const gchar *busname = "org.freedesktop.Tracker3.Miner.Files";
g_message ("Connecting to %s", busname);
tracker_miner_fs_connection = tracker_sparql_connection_bus_new (busname, NULL, NULL, error);
if (*error)
{
g_warning ("Unable to create connection for session-wide Tracker indexer: %s", (*error)->message);
return FALSE;
}
tracker_miner_fs_busname = busname;
return TRUE;
}
static gboolean
start_local_tracker_miner_fs (GError **error)
{
const gchar *busname = APPLICATION_ID ".Tracker3.Miner.Files";
g_message ("Starting %s", busname);
tracker_miner_fs_connection = tracker_sparql_connection_bus_new (busname, NULL, NULL, error);
if (*error)
{
g_critical ("Could not start local Tracker indexer at %s: %s", busname, (*error)->message);
return FALSE;
}
tracker_miner_fs_busname = busname;
return TRUE;
}
static gboolean
inside_flatpak (void)
{
return g_file_test ("/.flatpak-info", G_FILE_TEST_EXISTS);
}
static void
setup_tracker_miner_fs_connection (void)
{
static gsize tried_tracker_init = FALSE;
if (g_once_init_enter (&tried_tracker_init))
{
gboolean success;
success = get_host_tracker_miner_fs (&tracker_miner_fs_error);
if (!success && inside_flatpak ())
{
g_clear_error (&tracker_miner_fs_error);
success = start_local_tracker_miner_fs (&tracker_miner_fs_error);
}
g_once_init_leave (&tried_tracker_init, TRUE);
}
}
/**
* nautilus_tracker_get_miner_fs_connection:
* @error: return location for a #GError
*
* This function returns a global singleton #TrackerSparqlConnection, or %NULL
* if we couldn't connect to Tracker Miner FS.
*
* The first time you call it, this function will block while trying to connect.
* This may take some time if starting Tracker Miners from a Flatpak bundle.
*
* The returned object is a globally shared singleton which should NOT be
* unreffed.
*
* Returns: a #TrackerSparqlConnection, or %NULL
*/
TrackerSparqlConnection *
nautilus_tracker_get_miner_fs_connection (GError **error)
{
setup_tracker_miner_fs_connection ();
if (tracker_miner_fs_error && error)
{
*error = g_error_copy (tracker_miner_fs_error);
}
return tracker_miner_fs_connection;
}
/**
* nautilus_tracker_get_miner_fs_busname:
* @error: return location for a #GError
*
* This function returns a DBus name that can be used to talk to
* tracker-miner-fs, or %NULL if there is no Tracker Miner FS available.
*
* The first time you call it, this function will block while trying to connect.
* This may take some time if starting Tracker Miners from a Flatpak bundle.
*
* Returns: a string
*/
const gchar *
nautilus_tracker_get_miner_fs_busname (GError **error)
{
setup_tracker_miner_fs_connection ();
if (tracker_miner_fs_error && error)
{
*error = g_error_copy (tracker_miner_fs_error);
}
return tracker_miner_fs_busname;
}
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