Add hack to allow view loading to have multiple phases

.. by avoiding end_update() call after last read line.

diff --git a/tig.c b/tig.c
index f8132fd0f8aeaaf096aea74a0e2cd041edbfe2f7..2551ba313bf6d77556df908f96f0028cc4762fb1 100644 (file)
--- a/tig.c
+++ b/tig.c
@@ -2234,8 +2234,8 @@ alloc_error:
        report("Allocation failure");
 
 end:
-       view->ops->read(view, NULL);
-       end_update(view);
+       if (view->ops->read(view, NULL))
+               end_update(view);
        return FALSE;
 }
 
@@ -3077,6 +3077,8 @@ tree_read(struct view *view, char *text)
        enum line_type type;
        bool first_read = view->lines == 0;
 
+       if (!text)
+               return TRUE;
        if (textlen <= SIZEOF_TREE_ATTR)
                return FALSE;