read-cache.c: replace update_index_if_able with repo_&

diff --git a/log-tree.c b/log-tree.c
index 7a83e99250c5245bbbbd43908f3c116567f39b62..10680c139eeb530bc0e70e0c1713767b6ca5be21 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -755,14 +755,23 @@ void show_log(struct rev_info *opt)
 
        if (cmit_fmt_is_mail(ctx.fmt) && opt->rdiff1) {
                struct diff_queue_struct dq;
+               struct diff_options opts;
 
                memcpy(&dq, &diff_queued_diff, sizeof(diff_queued_diff));
                DIFF_QUEUE_CLEAR(&diff_queued_diff);
 
                next_commentary_block(opt, NULL);
                fprintf_ln(opt->diffopt.file, "%s", opt->rdiff_title);
+               /*
+                * Pass minimum required diff-options to range-diff; others
+                * can be added later if deemed desirable.
+                */
+               diff_setup(&opts);
+               opts.file = opt->diffopt.file;
+               opts.use_color = opt->diffopt.use_color;
+               diff_setup_done(&opts);
                show_range_diff(opt->rdiff1, opt->rdiff2,
-                               opt->creation_factor, 1, &opt->diffopt);
+                               opt->creation_factor, 1, &opts);
 
                memcpy(&diff_queued_diff, &dq, sizeof(diff_queued_diff));
        }