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61 lines
2.6 KiB
C++
61 lines
2.6 KiB
C++
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#pragma once
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#include <Core/Settings.h>
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#include <Core/Types_fwd.h>
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#include <boost/program_options.hpp>
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namespace DB
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{
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template <typename T>
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void addProgramOptionAsMultitoken(T &cmd_settings, boost::program_options::options_description & options, std::string_view name, const typename T::SettingFieldRef & field)
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{
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auto on_program_option = boost::function1<void, const Strings &>([&cmd_settings, name](const Strings & values) { cmd_settings.set(name, values.back()); });
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options.add(boost::shared_ptr<boost::program_options::option_description>(new boost::program_options::option_description(
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name.data(), boost::program_options::value<Strings>()->multitoken()->composing()->notifier(on_program_option), field.getDescription())));
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}
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template <typename T>
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void addProgramOptionsAsMultitokens(T &cmd_settings, boost::program_options::options_description & options)
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{
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const auto & settings_to_aliases = T::Traits::settingsToAliases();
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for (const auto & field : cmd_settings.all())
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{
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std::string_view name = field.getName();
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addProgramOptionAsMultitoken(cmd_settings, options, name, field);
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if (auto it = settings_to_aliases.find(name); it != settings_to_aliases.end())
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for (const auto alias : it->second)
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addProgramOptionAsMultitoken(cmd_settings, options, alias, field);
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}
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}
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/// Adds program options to set the settings from a command line.
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/// (Don't forget to call notify() on the `variables_map` after parsing it!)
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template <typename T>
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void addProgramOption(T &cmd_settings, boost::program_options::options_description & options, std::string_view name, const typename T::SettingFieldRef & field)
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{
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auto on_program_option = boost::function1<void, const std::string &>([&cmd_settings, name](const std::string & value) { cmd_settings.set(name, value); });
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options.add(boost::shared_ptr<boost::program_options::option_description>(new boost::program_options::option_description(
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name.data(), boost::program_options::value<std::string>()->composing()->notifier(on_program_option), field.getDescription())));
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}
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template <typename T>
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void addProgramOptions(T &cmd_settings, boost::program_options::options_description & options)
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{
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const auto & settings_to_aliases = T::Traits::settingsToAliases();
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for (const auto & field : cmd_settings.all())
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{
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std::string_view name = field.getName();
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addProgramOption(cmd_settings, options, name, field);
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if (auto it = settings_to_aliases.find(name); it != settings_to_aliases.end())
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for (const auto alias : it->second)
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addProgramOption(cmd_settings, options, alias, field);
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}
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}
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}
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