Function setFilter

plugins/debug.cpp:787–844

Handler for debugfilter set

//! Handler for debugfilter set
static command_result setFilter(color_ostream& out,
        std::vector<std::string>& parameters)
{
    bool persist = false;
    size_t pos = 1u;
    if (pos < parameters.size() &&
            parameters[pos] == persistent) {
        pos++;
        persist = true;
    }
    if (pos >= parameters.size()) {
        ERR(command,out).print("set requires at least the level parameter\n");
        return CR_WRONG_USAGE;
    }
    const std::string& level = parameters[pos];
    auto iter = std::find_if(levelNames.begin(), levelNames.end(),
            [&level](const LevelName& v) -> bool {
                return v.match(level);
            });
    if (iter == levelNames.end()) {
        ERR(command,out).print("level ('{}') parameter must be one of "
                "trace, debug, info, warning, error.\n",
                parameters[pos]);
        return CR_WRONG_USAGE;
    }

    DebugCategory::level filterLevel = static_cast<DebugCategory::level>(
            iter - levelNames.begin());

    unsigned line = 0;
    Filter* newFilter = nullptr;
    return applyCategoryFilters(out, parameters, pos + 1,
            // After parameters parsing
            [&parameters, pos, filterLevel,persist,&newFilter](DebugManager&, const std::regex& catRegex, const std::regex& pluginRegex)
            {
                auto& filMan = FilterManager::getInstance();
                newFilter = &filMan.emplaceNew(filterLevel,
                        pos+1 < parameters.size()?parameters[pos+1]:".",
                        catRegex,
                        pos+2 < parameters.size()?parameters[pos+2]:".",
                        pluginRegex,
                        persist).first->second;
                return filMan.blockSlot();
            },
            // Per item
            [filterLevel, &line, &out, &newFilter](DebugCategory& cat) {
                auto old = cat.allowed();
                cat.allowed(filterLevel);
                newFilter->addMatch();
                printCategoryListEntry(out, line, cat, old);
            },
            // After list
            [&out,&persist]() {
                if (persist)
                    return FilterManager::getInstance().saveConfig(out);
                return CR_OK;
            });
}