t3508: add check_head_differs_from() helper function and use it

diff --git a/rerere.c b/rerere.c
index 2197890982e55d7ff0832b6c59b6661874fa4223..d03a69634b81e1146c20182670a400b0c29b275f 100644 (file)
--- a/rerere.c
+++ b/rerere.c
@@ -46,7 +46,7 @@ static void read_rr(struct string_list *rr)
                        ; /* do nothing */
                if (i == sizeof(buf))
                        die("filename too long");
-               string_list_insert(buf, rr)->util = name;
+               string_list_insert(rr, buf)->util = name;
        }
        fclose(in);
 }
@@ -354,7 +354,7 @@ static int find_conflict(struct string_list *conflict)
                    ce_same_name(e2, e3) &&
                    S_ISREG(e2->ce_mode) &&
                    S_ISREG(e3->ce_mode)) {
-                       string_list_insert((const char *)e2->name, conflict);
+                       string_list_insert(conflict, (const char *)e2->name);
                        i++; /* skip over both #2 and #3 */
                }
        }
@@ -449,7 +449,7 @@ static int do_plain_rerere(struct string_list *rr, int fd)
                        if (ret < 1)
                                continue;
                        hex = xstrdup(sha1_to_hex(sha1));
-                       string_list_insert(path, rr)->util = hex;
+                       string_list_insert(rr, path)->util = hex;
                        if (mkdir(git_path("rr-cache/%s", hex), 0755))
                                continue;
                        handle_file(path, NULL, rerere_path(hex, "preimage"));
@@ -471,7 +471,7 @@ static int do_plain_rerere(struct string_list *rr, int fd)
                if (has_rerere_resolution(name)) {
                        if (!merge(name, path)) {
                                if (rerere_autoupdate)
-                                       string_list_insert(path, &update);
+                                       string_list_insert(&update, path);
                                fprintf(stderr,
                                        "%s '%s' using previous resolution.\n",
                                        rerere_autoupdate
@@ -577,7 +577,7 @@ static int rerere_forget_one_path(const char *path, struct string_list *rr)
        fprintf(stderr, "Updated preimage for '%s'\n", path);
 
 
-       string_list_insert(path, rr)->util = hex;
+       string_list_insert(rr, path)->util = hex;
        fprintf(stderr, "Forgot resolution for %s\n", path);
        return 0;
 }