elna/cli/main.cpp

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#include "elna/cli/cl.hpp"
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#include <filesystem>
#include <iostream>
#include <boost/program_options.hpp>
int main(int argc, char **argv)
{
boost::program_options::options_description visible{ "Allowed options" };
boost::program_options::options_description description;
boost::program_options::positional_options_description positional;
boost::program_options::variables_map variables_map;
visible.add_options()
("help", "Print this help message")
("output,o", boost::program_options::value<std::filesystem::path>(), "Output object file")
;
description.add_options()
("input", boost::program_options::value<std::filesystem::path>()->required())
;
description.add(visible);
positional.add("input", 1);
auto parsed = boost::program_options::command_line_parser(argc, argv)
.options(description).positional(positional)
.run();
boost::program_options::store(parsed, variables_map);
boost::program_options::notify(variables_map);
if (variables_map.count("help"))
{
std::cout << description << std::endl;
return 0;
}
const auto in_file = variables_map["input"].as<std::filesystem::path>();
std::filesystem::path out_file;
if (variables_map.count("output"))
{
out_file = variables_map["output"].as<std::filesystem::path>();
}
else
{
out_file = in_file.filename().replace_extension(".o");
}
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return elna::cli::compile(in_file, out_file);
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}