+/* config.cc - API for database metadata
+ *
+ * Copyright © 2016 David Bremner
+ *
+ * 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/ .
+ *
+ * Author: David Bremner <david@tethera.net>
+ */
+
+#include "notmuch.h"
+#include "notmuch-private.h"
+#include "database-private.h"
+
+static const std::string CONFIG_PREFIX = "C";
+
+notmuch_status_t
+notmuch_database_set_config (notmuch_database_t *notmuch,
+ const char *key,
+ const char *value)
+{
+ notmuch_status_t status;
+ Xapian::WritableDatabase *db;
+
+ status = _notmuch_database_ensure_writable (notmuch);
+ if (status)
+ return status;
+
+ try {
+ db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
+ db->set_metadata (CONFIG_PREFIX + key, value);
+ } catch (const Xapian::Error &error) {
+ status = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
+ notmuch->exception_reported = TRUE;
+ _notmuch_database_log (notmuch, "Error: A Xapian exception occurred setting metadata: %s\n",
+ error.get_msg().c_str());
+ }
+ return NOTMUCH_STATUS_SUCCESS;
+}
+
+static notmuch_status_t
+_metadata_value (notmuch_database_t *notmuch,
+ const char *key,
+ std::string &value)
+{
+ notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
+
+ try {
+ value = notmuch->xapian_db->get_metadata (CONFIG_PREFIX + key);
+ } catch (const Xapian::Error &error) {
+ status = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
+ notmuch->exception_reported = TRUE;
+ _notmuch_database_log (notmuch, "Error: A Xapian exception occurred getting metadata: %s\n",
+ error.get_msg().c_str());
+ }
+ return status;
+}
+
+notmuch_status_t
+notmuch_database_get_config (notmuch_database_t *notmuch,
+ const char *key,
+ char **value)
+{
+ std::string strval;
+ notmuch_status_t status;
+
+ if (! value)
+ return NOTMUCH_STATUS_NULL_POINTER;
+
+ status = _metadata_value (notmuch, key, strval);
+ if (status)
+ return status;
+
+ *value = strdup (strval.c_str ());
+
+ return NOTMUCH_STATUS_SUCCESS;
+}