refs: pass NULL to resolve_refdup() if hash is not needed

diff --git a/shallow.c b/shallow.c
index 36216febb613969ef5e72b889de65db586ce949d..1cc1c764151db233ba1cd43e06cbe87ba3f925ad 100644 (file)
--- a/shallow.c
+++ b/shallow.c
@@ -288,19 +288,18 @@ int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
 
 const char *setup_temporary_shallow(const struct oid_array *extra)
 {
-       static struct tempfile temp;
+       struct tempfile *temp;
        struct strbuf sb = STRBUF_INIT;
-       int fd;
 
        if (write_shallow_commits(&sb, 0, extra)) {
-               fd = xmks_tempfile(&temp, git_path("shallow_XXXXXX"));
+               temp = xmks_tempfile(git_path("shallow_XXXXXX"));
 
-               if (write_in_full(fd, sb.buf, sb.len) != sb.len ||
-                   close_tempfile_gently(&temp) < 0)
+               if (write_in_full(temp->fd, sb.buf, sb.len) != sb.len ||
+                   close_tempfile_gently(temp) < 0)
                        die_errno("failed to write to %s",
-                                 get_tempfile_path(&temp));
+                                 get_tempfile_path(temp));
                strbuf_release(&sb);
-               return get_tempfile_path(&temp);
+               return get_tempfile_path(temp);
        }
        /*
         * is_repository_shallow() sees empty string as "no shallow