sys.h

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#pragma once
 
#include <filesystem>
#include <optional>
#include <string>
 
#ifdef _WIN32
#    define THORIN_WHICH "where"
#else
#    define THORIN_WHICH "which"
#endif
 
namespace thorin {
 
namespace fs = std::filesystem;
 
namespace sys {
 
std::optional<fs::path> path_to_curr_exe(); ///< Yields `std::nullopt` if an error occurred.
 
/// Executes command @p cmd.
/// @returns the output as string.
std::string exec(std::string cmd);
 
std::string find_cmd(std::string);
 
/// Wraps `std::system` and makes the return value usable.
int system(std::string);
 
/// Wraps sys::system and puts `.exe` at the back (Windows) and `./` at the front (otherwise) of @p cmd.
int run(std::string cmd, std::string args = {});
 
} // namespace sys
} // namespace thorin