cherry-pick: handle root commits with external strategies

diff --git a/rerere.c b/rerere.c
index 22996bd08b532fb8016f24391dd0e63010706385..22dfc843da1528ffd0466d496c50c56702e55a24 100644 (file)
--- a/rerere.c
+++ b/rerere.c
@@ -438,7 +438,7 @@ static int merge(const char *name, const char *path)
                ret = 1;
                goto out;
        }
-       ret = ll_merge(&result, path, &base, NULL, &cur, "", &other, "", 0);
+       ret = ll_merge(&result, path, &base, NULL, &cur, "", &other, "", NULL);
        if (!ret) {
                FILE *f;
 
@@ -590,8 +590,7 @@ static int is_rerere_enabled(void)
        if (rerere_enabled < 0)
                return rr_cache_exists;
 
-       if (!rr_cache_exists &&
-           (mkdir(rr_cache, 0777) || adjust_shared_perm(rr_cache)))
+       if (!rr_cache_exists && mkdir_in_gitdir(rr_cache))
                die("Could not create directory %s", rr_cache);
        return 1;
 }