add: speed up cmd_add() by utilizing read_cache_preload()

diff --git a/tree-diff.c b/tree-diff.c
index fe2e466ac1dcb164b214ce4856ed9d62884ddbd3..0e5432461026eff15fe101cf017cd839702e5870 100644 (file)
--- a/tree-diff.c
+++ b/tree-diff.c
@@ -491,7 +491,7 @@ static struct combine_diff_path *ll_diff_tree_paths(
                                                continue;
 
                                        /* diff(t,pi) != ø */
-                                       if (oidcmp(t.entry.oid, tp[i].entry.oid) ||
+                                       if (!oideq(t.entry.oid, tp[i].entry.oid) ||
                                            (t.entry.mode != tp[i].entry.mode))
                                                continue;
 
@@ -557,9 +557,7 @@ struct combine_diff_path *diff_tree_paths(
         * free pre-allocated last element, if any
         * (see path_appendnew() for details about why)
         */
-       if (p->next) {
-               FREE_AND_NULL(p->next);
-       }
+       FREE_AND_NULL(p->next);
 
        return p;
 }
@@ -607,7 +605,7 @@ static void try_to_follow_renames(const struct object_id *old_oid,
        choice = q->queue[0];
        q->nr = 0;
 
-       diff_setup(&diff_opts);
+       repo_diff_setup(opt->repo, &diff_opts);
        diff_opts.flags.recursive = 1;
        diff_opts.flags.find_copies_harder = 1;
        diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;