/**
* \brief Saves the data into a Lua file.
* \param[in] file_name Path of the file to save.
* The file will be encoded in UTF-8.
* \return \c true in case of success, \c false if the data
* could not be exported.
*/
bool LuaData::export_to_file(const std::string& file_name) const {
// Work on a temporary file to keep the initial one intact in case of failure.
std::string tmp_file_name = file_name + ".solarus_tmp";
std::ofstream tmp_out(tmp_file_name);
if (!tmp_out) {
return false;
}
if (!export_to_lua(tmp_out)) {
std::remove(tmp_file_name.c_str());
return false;
}
tmp_out.flush();
tmp_out.close();
std::ifstream in(tmp_file_name);
if (!in) {
return false;
}
std::ofstream out(file_name);
if (!out) {
return false;
}
out << in.rdbuf();
in.close();
std::remove(tmp_file_name.c_str());
out.flush();
return true;
}
/**
* \brief Saves this object into memory as Lua.
* \param[out] buffer The buffer to write.
* Text will be encoded in UTF-8.
* \return \c true in case of success, \c false if the data
* could not be exported.
*/
bool LuaData::export_to_buffer(std::string& buffer) const {
std::ostringstream oss;
if (!export_to_lua(oss)) {
return false;
}
buffer = oss.str();
return true;
}
/**
* \brief Saves the data into a Lua file.
* \param[in] file_name Path of the file to save.
* The file will be encoded in UTF-8.
* \return \c true in case of success, \c false if the data
* could not be exported.
*/
bool LuaData::export_to_file(const std::string& file_name) const {
// Work on a temporary file to keep the initial one intact in case of failure.
std::string tmp_file_name = file_name + ".solarus_tmp";
std::ofstream out(tmp_file_name);
if (!out) {
return false;
}
if (!export_to_lua(out)) {
std::remove(tmp_file_name.c_str());
return false;
}
if (std::rename(tmp_file_name.c_str(), file_name.c_str()) != 0) {
return false;
}
return true;
}
