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clio/src/app/CliArgs.hpp
2025-01-13 09:57:11 -05:00

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3.3 KiB
C++

//------------------------------------------------------------------------------
/*
This file is part of clio: https://github.com/XRPLF/clio
Copyright (c) 2024, the clio developers.
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#pragma once
#include "migration/MigrationApplication.hpp"
#include "util/OverloadSet.hpp"
#include <string>
#include <variant>
namespace app {
/**
* @brief Parsed command line arguments representation.
*/
class CliArgs {
public:
/**
* @brief Default configuration path.
*/
static constexpr char kDEFAULT_CONFIG_PATH[] = "/etc/opt/clio/config.json";
/**
* @brief An action parsed from the command line.
*/
class Action {
public:
/** @brief Run action. */
struct Run {
std::string configPath; ///< Configuration file path.
bool useNgWebServer; ///< Whether to use a ng web server
};
/** @brief Exit action. */
struct Exit {
int exitCode; ///< Exit code.
};
/** @brief Migration action. */
struct Migrate {
std::string configPath;
MigrateSubCmd subCmd;
};
/** @brief Verify Config action. */
struct VerifyConfig {
std::string configPath;
};
/**
* @brief Construct an action from a Run.
*
* @param action Run action.
*/
template <typename ActionType>
requires std::is_same_v<ActionType, Run> or std::is_same_v<ActionType, Exit> or
std::is_same_v<ActionType, Migrate> or std::is_same_v<ActionType, VerifyConfig>
explicit Action(ActionType&& action) : action_(std::forward<ActionType>(action))
{
}
/**
* @brief Apply a function to the action.
*
* @tparam Processors Action processors types. Must be callable with the action type and return int.
* @param processors Action processors.
* @return Exit code.
*/
template <typename... Processors>
int
apply(Processors&&... processors) const
{
return std::visit(util::OverloadSet{std::forward<Processors>(processors)...}, action_);
}
private:
std::variant<Run, Exit, Migrate, VerifyConfig> action_;
};
/**
* @brief Parse command line arguments.
*
* @param argc Number of arguments.
* @param argv Array of arguments.
* @return Parsed command line arguments.
*/
static Action
parse(int argc, char const* argv[]);
};
} // namespace app