示例#1
0
static bool load_or_save_variables(bool save)
{
    const wcstring wdir = fishd_get_config();
    const std::string dir = wcs2string(wdir);
    if (dir.empty())
        return false;

    const std::string machine_id = get_machine_identifier();
    const std::string machine_id_path = get_variables_file_path(dir, machine_id);
    bool success = load_or_save_variables_at_path(save, machine_id_path);
    if (! success && ! save && errno == ENOENT)
    {
        /* We failed to load, because the file was not found. Older fish used the hostname only. Try *moving* the filename based on the hostname into place; if that succeeds try again. Silently "upgraded." */
        std::string hostname_id;
        if (get_hostname_identifier(&hostname_id) && hostname_id != machine_id)
        {
            std::string hostname_path = get_variables_file_path(dir, hostname_id);
            if (0 == rename(hostname_path.c_str(), machine_id_path.c_str()))
            {
                /* We renamed - try again */
                success = load_or_save_variables_at_path(save, machine_id_path);
            }
        }
    }
    return success;
}
static wcstring default_vars_path()
{
    wcstring wdir = fishd_get_config();
    const std::string dir = wcs2string(wdir);
    if (dir.empty())
        return L"";
    
    const std::string machine_id = get_machine_identifier();
    const std::string machine_id_path = get_variables_file_path(dir, machine_id);
    return str2wcstring(machine_id_path);
}