prog = getenv(COUNTERPART_ENV_NAME);
        if (!prog) prog = COUNTERPART_PROGRAM_NAME;
+
+       setup_git_directory();
+
        while (arg < argc && argv[arg][0] == '-') {
                if (argv[arg][1] == 'w')
                        arg++;
        commit_id = argv[arg];
        url = argv[arg + 1];
        if (get_sha1(commit_id, sha1))
-               usage(ssh_push_usage);
+               die("Not a valid object name %s", commit_id);
        memcpy(hex, sha1_to_hex(sha1), sizeof(hex));
        argv[arg] = hex;