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-rw-r--r--plugins/common/gsd-settings-migrate.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/plugins/common/gsd-settings-migrate.c b/plugins/common/gsd-settings-migrate.c
new file mode 100644
index 0000000..a0e5cb8
--- /dev/null
+++ b/plugins/common/gsd-settings-migrate.c
@@ -0,0 +1,74 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2015 Red Hat
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Author: Carlos Garnacho <carlosg@gnome.org>
+ */
+
+#include "config.h"
+
+#include <gio/gio.h>
+
+#include "gsd-settings-migrate.h"
+
+void
+gsd_settings_migrate_check (const gchar *origin_schema,
+ const gchar *origin_path,
+ const gchar *dest_schema,
+ const gchar *dest_path,
+ GsdSettingsMigrateEntry entries[],
+ guint n_entries)
+{
+ GSettings *origin_settings, *dest_settings;
+ guint i;
+
+ origin_settings = g_settings_new_with_path (origin_schema, origin_path);
+ dest_settings = g_settings_new_with_path (dest_schema, dest_path);
+
+ for (i = 0; i < n_entries; i++) {
+ g_autoptr(GVariant) variant = NULL;
+
+ variant = g_settings_get_user_value (origin_settings, entries[i].origin_key);
+
+ if (!variant)
+ continue;
+
+ g_settings_reset (origin_settings, entries[i].origin_key);
+
+ if (entries[i].dest_key) {
+ if (entries[i].func) {
+ g_autoptr(GVariant) old_default = NULL;
+ g_autoptr(GVariant) new_default = NULL;
+ GVariant *modified;
+
+ old_default = g_settings_get_default_value (origin_settings, entries[i].origin_key);
+ new_default = g_settings_get_default_value (dest_settings, entries[i].dest_key);
+
+ modified = entries[i].func (variant, old_default, new_default);
+ g_clear_pointer (&variant, g_variant_unref);
+ if (modified)
+ variant = g_variant_ref_sink (modified);
+ }
+
+ if (variant)
+ g_settings_set_value (dest_settings, entries[i].dest_key, variant);
+ }
+ }
+
+ g_object_unref (origin_settings);
+ g_object_unref (dest_settings);
+}