cl_args.hpp

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#pragma once
 
#include "common/expected.hpp"
#include "user/program_options.hpp"
 
#include <argparse/argparse.hpp>
 
#include <optional>
#include <span>
#include <string>
#include <string_view>
#include <vector>
 
namespace asmgrader {
 
class CommandLineArgs
{
public:
    explicit CommandLineArgs(std::span<const char*> args);
 
    Expected<ProgramOptions, std::string> parse();
 
    std::string usage_message() const;
    std::string help_message() const;
 
    std::optional<ProgramOptions> get_options() const;
 
private:
    void setup_parser();
 
    static std::string get_basename(std::string_view full_name);
 
    argparse::ArgumentParser arg_parser_;
    std::vector<std::string> args_;
 
    ProgramOptions opts_buffer_ = {};
 
    bool parse_successful_ = false;
};
 
ProgramOptions parse_args_or_exit(std::span<const char*> args, int exit_code = 1) noexcept;
 
} // namespace asmgrader