Method outputHelp

pdal/SubcommandKernel.cpp:82–129

void SubcommandKernel::outputHelp()
{
    auto outputStdOpts = [this]()
    {
        ProgramArgs args;
        addBasicSwitches(args);

        std::cout << "standard options:" << std::endl;
        args.dump(std::cout, 2, Utils::screenWidth());
    };

    auto outputSubOpts = [this](const std::string& sub)
    {
        ProgramArgs args;
        addSubSwitches(args, sub);

        std::cout << "subcommand '" << sub << "' options:" << std::endl;
        args.dump(std::cout, 2, Utils::screenWidth());
    };

    if (Utils::contains(subcommands(), m_subcommand))
    {
        // We're repeating addSubSwitches here (it's also called from
        // outputSubOpts), but it keeps things cleaner since outputSubOpts
        // also writes output.
        ProgramArgs args;
        addSubSwitches(args, m_subcommand);

        std::cout << "usage: " << "pdal " << getShortName() << " " <<
            m_subcommand << " [options] " << args.commandLine() <<
            std::endl;

        outputStdOpts();
        outputSubOpts(m_subcommand);
    }
    else
    {
        std::cout << "usage: " << "pdal " << getShortName() <<
            " <subcommand> [options] " << std::endl;

        outputStdOpts();
        for (const std::string& subcmd : subcommands())
            outputSubOpts(subcmd);
    }

    std::cout << "\nFor more information, see the full documentation for "
        "PDAL at https://pdal.org/\n" << std::endl;
}

} // namespace pdal