**Use case**

It prints:
```
ClickHouse has been successfully installed.

Start clickhouse-server with:
 sudo clickhouse start
```

But if clickhouse-server is already running, let's print:
```
ClickHouse has been successfully installed.

Restart clickhouse-server with:
 sudo clickhouse restart
```
bool has_password_for_default_user = false;
        if (!fs::exists(config_d))
        {
            fmt::print("Creating config directory {} that is used for tweaks of main server configuration.\n", config_d.string());
            fs::create_directory(config_d);
        }
        if (!fs::exists(users_d))
        {
            fmt::print("Creating config directory {} that is used for tweaks of users configuration.\n", users_d.string());
            fs::create_directory(users_d);
        }
        if (!fs::exists(main_config_file))
        {
            std::string_view main_config_content = getResource("config.xml");
            if (main_config_content.empty())
            {
                fmt::print("There is no default config.xml, you have to download it and place to {}.\n", main_config_file.string());
            }
            else
            {
                {
                    WriteBufferFromFile out(main_config_file.string());
                    out.write(main_config_content.data(), main_config_content.size());
                    out.sync();
                    out.finalize();
                }
                
                
                {
                    std::string data_file = config_d / "data-paths.xml";