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);
+}