lib: Return an error from operations that require an upgrade

[notmuch] / lib / database.cc

diff --git a/lib/database.cc b/lib/database.cc
index 53397bb0dd7abcbf70378aba8eadd59373b7a660..511618893d50ac7ba5c5af692e98151138a84824 100644 (file)
--- a/lib/database.cc
+++ b/lib/database.cc
@@ -316,6 +316,8 @@ notmuch_status_to_string (notmuch_status_t status)
        return "Unbalanced number of calls to notmuch_database_begin_atomic/end_atomic";
     case NOTMUCH_STATUS_UNSUPPORTED_OPERATION:
        return "Unsupported operation";
+    case NOTMUCH_STATUS_UPGRADE_REQUIRED:
+       return "Operation requires a database upgrade";
     default:
     case NOTMUCH_STATUS_LAST_STATUS:
        return "Unknown error status value";
@@ -2226,6 +2228,9 @@ notmuch_database_find_message_by_filename (notmuch_database_t *notmuch,
     if (message_ret == NULL)
        return NOTMUCH_STATUS_NULL_POINTER;
 
+    if (! (notmuch->features & NOTMUCH_FEATURE_FILE_TERMS))
+       return NOTMUCH_STATUS_UPGRADE_REQUIRED;
+
     /* return NULL on any failure */
     *message_ret = NULL;