- if ((flags & CREATE_ROOT_COMMIT) && !(flags & AMEND_MSG)) {
- struct strbuf msg = STRBUF_INIT, script = STRBUF_INIT;
- const char *author = NULL;
- struct object_id root_commit, *cache_tree_oid;
- int res = 0;
-
- if (is_rebase_i(opts)) {
- author = read_author_ident(&script);
- if (!author) {
- strbuf_release(&script);
- return -1;
- }
- }
-
- if (!defmsg)
- BUG("root commit without message");
-
- if (!(cache_tree_oid = get_cache_tree_oid(r->index)))
- res = -1;
-
- if (!res)
- res = strbuf_read_file(&msg, defmsg, 0);
-
- if (res <= 0)
- res = error_errno(_("could not read '%s'"), defmsg);
- else
- res = commit_tree(msg.buf, msg.len, cache_tree_oid,
- NULL, &root_commit, author,
- opts->gpg_sign);
-
- strbuf_release(&msg);
- strbuf_release(&script);
- if (!res) {
- update_ref(NULL, "CHERRY_PICK_HEAD", &root_commit, NULL,
- REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR);
- res = update_ref(NULL, "HEAD", &root_commit, NULL, 0,
- UPDATE_REFS_MSG_ON_ERR);
- }
- return res < 0 ? error(_("writing root commit")) : 0;
- }
-