log_create_main.cpp

#include <CLI/CLI.hpp>
#include <nlohmann/json.hpp>
#include <phosphor-logging/commit.hpp>
#include <sdbusplus/exception.hpp>

// We don't actually use the Logging events, but we need to include the
// header in order to force linking against the PDI library.
#include <xyz/openbmc_project/Logging/event.hpp>

#include <iostream>
#include <string>

void list_all()
{
    std::cout << "Known events:" << std::endl;
    for (const auto& e : sdbusplus::exception::known_events())
    {
        std::cout << "    " << e << std::endl;
    }
}

int generate_event(const std::string& eventId, const nlohmann::json& data,
                   std::optional<int> severity)
{
    if (eventId.empty())
    {
        std::cerr << "event required" << std::endl;
        return 1;
    }

    nlohmann::json j = {{eventId, data}};

    try
    {
        sdbusplus::exception::throw_via_json(j);
    }
    catch (sdbusplus::exception::generated_event_base& e)
    {
        auto path = lg2::commit(std::move(e), severity);
        std::cout << path.str << std::endl;
        return 0;
    }

    std::cerr << "Unknown event: " << eventId << std::endl;
    return 1;
}

int main(int argc, char** argv)
{
    CLI::App app{"log-create"};
    std::map<std::string, int> syslogMap = {
        {"DEBUG", LOG_DEBUG},     {"INFO", LOG_INFO},  {"NOTICE", LOG_NOTICE},
        {"WARNING", LOG_WARNING}, {"ERR", LOG_ERR},    {"CRIT", LOG_CRIT},
        {"ALERT", LOG_ALERT},     {"EMERG", LOG_EMERG}};

    std::string jsonStr;
    app.add_option("-j,--json", jsonStr, "Event data as a JSON object")
        ->default_val("{}");

    std::optional<int> severity;
    app.add_option(
           "-s,--severity", severity,
           "Syslog severity (Overrides the one specified by the message registry")
        ->transform(CLI::CheckedTransformer(syslogMap, CLI::ignore_case));

    std::string event{};
    auto event_option = app.add_option("event", event, "Event name");

    bool listOnly = false;
    app.add_flag("-l,--list", listOnly, "List all events")
        ->excludes(event_option);

    CLI11_PARSE(app, argc, argv);

    if (listOnly)
    {
        list_all();
        return 0;
    }

    return generate_event(event, nlohmann::json::parse(jsonStr), severity);
}