git-whatchanged: Add usage string

diff --git a/diffcore-rename.c b/diffcore-rename.c
index 092cf68de6455b3f2dc639d9c7a79e574ff615db..dba965c0b4006251b1da04465d319c5fe9997ea4 100644 (file)
--- a/diffcore-rename.c
+++ b/diffcore-rename.c
@@ -249,8 +249,11 @@ static int compute_stays(struct diff_queue_struct *q,
        return 1;
 }
 
-void diffcore_rename(int detect_rename, int minimum_score)
+void diffcore_rename(struct diff_options *options)
 {
+       int detect_rename = options->detect_rename;
+       int minimum_score = options->rename_score;
+       int rename_limit = options->rename_limit;
        struct diff_queue_struct *q = &diff_queued_diff;
        struct diff_queue_struct outq;
        struct diff_score *mx;
@@ -279,7 +282,8 @@ void diffcore_rename(int detect_rename, int minimum_score)
                else if (detect_rename == DIFF_DETECT_COPY)
                        register_rename_src(p->one, 1);
        }
-       if (rename_dst_nr == 0)
+       if (rename_dst_nr == 0 ||
+           (0 < rename_limit && rename_limit < rename_dst_nr))
                goto cleanup; /* nothing to do */
 
        /* We really want to cull the candidates list early
@@ -303,6 +307,9 @@ void diffcore_rename(int detect_rename, int minimum_score)
        if (rename_count == rename_dst_nr)
                goto cleanup;
 
+       if (minimum_score == MAX_SCORE)
+               goto cleanup;
+
        num_create = (rename_dst_nr - rename_count);
        num_src = rename_src_nr;
        mx = xmalloc(sizeof(*mx) * num_create * num_src);