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#include <iostream>
#include <filesystem>
#include <map>
#include <lua5.1/lua.h>
#include <lua5.1/lauxlib.h>
#include <lua5.1/lualib.h>
#include "vars.cc"
std::map<std::string, int> build_files;
void lua_build (const char *path) {
lua_State *L = lua_open();
luaL_openlibs(L);
if (luaL_loadfile(L, config_file.c_str()) || lua_pcall(L, 0, 0, 0)){
std::cout << print_error << "cannot run configuration script: " << lua_tostring(L, -1) << "\n";
}
lua_getglobal(L, "build_systems");
if (!lua_istable(L, -1)) {
std::cout << print_error << "lua variable 'build_systems' is not a table.\n";
}
lua_pushnil(L);
bool build_found = false;
while (lua_next(L, -2) != 0) {
const char *key = lua_tostring(L, -2);
int value = lua_type(L, -1);
if (lua_isfunction(L, -1) == 0) {
std::cout << print_error << "build value is not a function\n";
lua_pop(L, 1);
continue;
}
build_files[key] = value;
for (auto const& dir_entry : std::filesystem::directory_iterator(std::filesystem::current_path().string())) {
std::string string_key = key;
if (dir_entry.path().filename() != string_key) { continue; }
build_found = true;
lua_pushvalue(L, -1);
lua_pushstring(L, std::filesystem::current_path().string().c_str());
std::cout << "calling lua build function according to key filename '"<< key << "'...\n";
if (lua_pcall(L, 1, 0, 0) != 0) {
std::cout << print_error << "lua build function failed to run\n";
}
if (build_found) { break; }
}
lua_pop(L, 1);
}
if (!build_found) {
std::cout << print_error << "no usable build system was found\n";
}
}
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