Save errno in handle_alias()

diff --git a/diffcore-rename.c b/diffcore-rename.c
index e99269872026c7f08e729acb6ffba7ef3c9c8fd8..d57e8656cdcf1b999df30c01d3a8a042bc3ebb75 100644 (file)
--- a/diffcore-rename.c
+++ b/diffcore-rename.c
@@ -54,12 +54,14 @@ static struct diff_rename_dst *locate_rename_dst(struct diff_filespec *two,
 /* Table of rename/copy src files */
 static struct diff_rename_src {
        struct diff_filespec *one;
+       unsigned short score; /* to remember the break score */
        unsigned src_path_left : 1;
 } *rename_src;
 static int rename_src_nr, rename_src_alloc;
 
 static struct diff_rename_src *register_rename_src(struct diff_filespec *one,
-                                                  int src_path_left)
+                                                  int src_path_left,
+                                                  unsigned short score)
 {
        int first, last;
 
@@ -89,6 +91,7 @@ static struct diff_rename_src *register_rename_src(struct diff_filespec *one,
                memmove(rename_src + first + 1, rename_src + first,
                        (rename_src_nr - first - 1) * sizeof(*rename_src));
        rename_src[first].one = one;
+       rename_src[first].score = score;
        rename_src[first].src_path_left = src_path_left;
        return &(rename_src[first]);
 }
@@ -198,7 +201,10 @@ static void record_rename_pair(int dst_index, int src_index, int score)
        fill_filespec(two, dst->sha1, dst->mode);
 
        dp = diff_queue(NULL, one, two);
-       dp->score = score;
+       if (!strcmp(src->path, dst->path))
+               dp->score = rename_src[src_index].score;
+       else
+               dp->score = score;
        dp->source_stays = rename_src[src_index].src_path_left;
        rename_dst[dst_index].pair = dp;
 }
@@ -256,10 +262,10 @@ void diffcore_rename(struct diff_options *options)
                         * that means the source actually stays.
                         */
                        int stays = (p->broken_pair && !p->score);
-                       register_rename_src(p->one, stays);
+                       register_rename_src(p->one, stays, p->score);
                }
                else if (detect_rename == DIFF_DETECT_COPY)
-                       register_rename_src(p->one, 1);
+                       register_rename_src(p->one, 1, p->score);
        }
        if (rename_dst_nr == 0 || rename_src_nr == 0 ||
            (0 < rename_limit && rename_limit < rename_dst_nr))