VoxelEngine/src/util/command_line.cpp

68 lines
2.2 KiB
C++

#include "command_line.hpp"
#include <filesystem>
#include <iostream>
#include "files/engine_paths.hpp"
#include "util/ArgsReader.hpp"
#include "engine/Engine.hpp"
namespace fs = std::filesystem;
static bool perform_keyword(
util::ArgsReader& reader, const std::string& keyword, CoreParameters& params
) {
if (keyword == "--res") {
auto token = reader.next();
params.resFolder = fs::u8path(token);
} else if (keyword == "--dir") {
auto token = reader.next();
params.userFolder = fs::u8path(token);
} else if (keyword == "--help" || keyword == "-h") {
std::cout << "VoxelCore v" << ENGINE_VERSION_STRING << "\n\n";
std::cout << "command-line arguments:\n";
std::cout << " --help - show help\n";
std::cout << " --version - print engine version\n";
std::cout << " --res <path> - set resources directory\n";
std::cout << " --dir <path> - set userfiles directory\n";
std::cout << " --headless - run in headless mode\n";
std::cout << " --test <path> - test script file\n";
std::cout << " --script <path> - main script file\n";
std::cout << std::endl;
return false;
} else if (keyword == "--version") {
std::cout << ENGINE_VERSION_STRING << std::endl;
return false;
} else if (keyword == "--headless") {
params.headless = true;
} else if (keyword == "--test") {
auto token = reader.next();
params.testMode = true;
params.scriptFile = fs::u8path(token);
} else if (keyword == "--script") {
auto token = reader.next();
params.testMode = false;
params.scriptFile = fs::u8path(token);
} else {
throw std::runtime_error("unknown argument " + keyword);
}
return true;
}
bool parse_cmdline(int argc, char** argv, CoreParameters& params) {
util::ArgsReader reader(argc, argv);
reader.skip();
while (reader.hasNext()) {
std::string token = reader.next();
if (reader.isKeywordArg()) {
if (!perform_keyword(reader, token, params)) {
return false;
}
} else {
std::cerr << "unexpected token" << std::endl;
return false;
}
}
return true;
}