diff-no-index: use diff_tree_setup_paths()

diff_options.{paths,nr_paths} will be removed later. Do not
modify them directly.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/diff-no-index.c b/diff-no-index.c
index ce9e783407437bb1e0efc6d5bc2392af26da5a41..e48ab92ba1ae9bfe746eaedaa76fe73421a80cb9 100644 (file)
--- a/diff-no-index.c
+++ b/diff-no-index.c
@@ -231,8 +231,9 @@ void diff_no_index(struct rev_info *revs,
 
        if (prefix) {
                int len = strlen(prefix);
+               const char *paths[3];
+               memset(paths, 0, sizeof(paths));
 
-               revs->diffopt.paths = xcalloc(2, sizeof(char *));
                for (i = 0; i < 2; i++) {
                        const char *p = argv[argc - 2 + i];
                        /*
@@ -242,12 +243,12 @@ void diff_no_index(struct rev_info *revs,
                        p = (strcmp(p, "-")
                             ? xstrdup(prefix_filename(prefix, len, p))
                             : p);
-                       revs->diffopt.paths[i] = p;
+                       paths[i] = p;
                }
+               diff_tree_setup_paths(paths, &revs->diffopt);
        }
        else
-               revs->diffopt.paths = argv + argc - 2;
-       revs->diffopt.nr_paths = 2;
+               diff_tree_setup_paths(argv + argc - 2, &revs->diffopt);
        revs->diffopt.skip_stat_unmatch = 1;
        if (!revs->diffopt.output_format)
                revs->diffopt.output_format = DIFF_FORMAT_PATCH;