notes: track whether notes_trees were changed at all

diff --git a/notes.c b/notes.c
index 2feeb7bb06ce5073d6813e447f13f1205e2d87c4..0261e7898a5ed6412f92a614818f75c53253b280 100644 (file)
--- a/notes.c
+++ b/notes.c
@@ -933,6 +933,7 @@ void init_notes(struct notes_tree *t, const char *notes_ref,
        t->ref = notes_ref ? xstrdup(notes_ref) : NULL;
        t->combine_notes = combine_notes;
        t->initialized = 1;
+       t->dirty = 0;
 
        if (flags & NOTES_INIT_EMPTY || !notes_ref ||
            read_ref(notes_ref, object_sha1))
@@ -1011,6 +1012,7 @@ void add_note(struct notes_tree *t, const unsigned char *object_sha1,
        if (!t)
                t = &default_notes_tree;
        assert(t->initialized);
+       t->dirty = 1;
        if (!combine_notes)
                combine_notes = t->combine_notes;
        l = (struct leaf_node *) xmalloc(sizeof(struct leaf_node));
@@ -1026,6 +1028,7 @@ void remove_note(struct notes_tree *t, const unsigned char *object_sha1)
        if (!t)
                t = &default_notes_tree;
        assert(t->initialized);
+       t->dirty = 1;
        hashcpy(l.key_sha1, object_sha1);
        hashclr(l.val_sha1);
        return note_tree_remove(t, t->root, 0, &l);