+static notmuch_status_t
+_trial_open (const char *xapian_path, char **message_ptr)
+{
+ try {
+ Xapian::Database db (xapian_path);
+ } catch (const Xapian::DatabaseOpeningError &error) {
+ IGNORE_RESULT (asprintf (message_ptr,
+ "Cannot open Xapian database at %s: %s\n",
+ xapian_path,
+ error.get_msg ().c_str ()));
+ return NOTMUCH_STATUS_PATH_ERROR;
+ } catch (const Xapian::Error &error) {
+ IGNORE_RESULT (asprintf (message_ptr,
+ "A Xapian exception occurred opening database: %s\n",
+ error.get_msg ().c_str ()));
+ return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
+ }
+ return NOTMUCH_STATUS_SUCCESS;
+}
+
+notmuch_status_t
+_notmuch_choose_xapian_path (void *ctx, const char *database_path,
+ const char **xapian_path, char **message_ptr)
+{
+ notmuch_status_t status;
+ const char *trial_path, *notmuch_path;
+
+ status = _db_dir_exists (database_path, message_ptr);
+ if (status)
+ goto DONE;
+
+ trial_path = talloc_asprintf (ctx, "%s/xapian", database_path);
+ status = _trial_open (trial_path, message_ptr);
+ if (status != NOTMUCH_STATUS_PATH_ERROR)
+ goto DONE;
+
+ if (*message_ptr)
+ free (*message_ptr);
+
+ notmuch_path = talloc_asprintf (ctx, "%s/.notmuch", database_path);
+ status = _db_dir_exists (notmuch_path, message_ptr);
+ if (status)
+ goto DONE;
+
+ trial_path = talloc_asprintf (ctx, "%s/xapian", notmuch_path);
+ status = _trial_open (trial_path, message_ptr);
+
+ DONE:
+ if (status == NOTMUCH_STATUS_SUCCESS)
+ *xapian_path = trial_path;
+ return status;
+}
+