Makefile: Remove unused variable emacs_startdir

[notmuch] / notmuch-show.c

diff --git a/notmuch-show.c b/notmuch-show.c
index 30b7df596854763f236a2c6fa9aeda7891bb9d7a..96f287408fa12c2f729f3cc3f68a81fd533c46aa 100644 (file)
--- a/notmuch-show.c
+++ b/notmuch-show.c
@@ -196,16 +196,21 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
     if (config == NULL)
        return 1;
 
-    notmuch = notmuch_database_open (notmuch_config_get_database_path (config));
-    if (notmuch == NULL)
-       return 1;
-
     query_string = query_string_from_args (ctx, argc, argv);
     if (query_string == NULL) {
        fprintf (stderr, "Out of memory\n");
        return 1;
     }
 
+    if (*query_string == '\0') {
+       fprintf (stderr, "Error: notmuch show requires at least one search term.\n");
+       return 1;
+    }
+
+    notmuch = notmuch_database_open (notmuch_config_get_database_path (config));
+    if (notmuch == NULL)
+       return 1;
+
     query = notmuch_query_create (notmuch, query_string);
     if (query == NULL) {
        fprintf (stderr, "Out of memory\n");