t = &default_notes_tree;
if (!t->initialized || !t->ref || !*t->ref)
die("Cannot commit uninitialized/unreferenced notes tree");
+ if (!t->dirty)
+ return 0; /* don't have to commit an unchanged tree */
/* Prepare commit message and reflog message */
strbuf_addstr(&buf, "notes: "); /* commit message starts at index 7 */
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))
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));
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);