def make_executable(path, fatal=True):
    """
    :param str|None path: chmod file with 'path' as executable
    :param bool|None fatal: Abort execution on failure if True
    :return int: 1 if effectively done, 0 if no-op, -1 on failure
    """
    if is_executable(path):
        return 0

    if is_dryrun():
        LOG.debug("Would make %s executable", short(path))
        return 1

    if not os.path.exists(path):
        return abort("%s does not exist, can't make it executable", short(path), fatal=(fatal, -1))

    try:
        os.chmod(path, 0o755)  # nosec
        return 1

    except Exception as e:
        return abort("Can't chmod %s: %s", short(path), e, fatal=(fatal, -1))