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/*
* This source code is released into the public domain.
*/
module;
#include <expected>
#include <filesystem>
#include <format>
#include <utility>
import nihil;
import nihil.ucl;
module nihil.config;
namespace nihil::config {
auto write_to(std::filesystem::path const &filename)
-> std::expected<void, nihil::error>
try {
auto uclconfig = ucl::map<ucl::object>();
// Add all the options to the UCL object.
for (auto const &option : store::get().all()) {
if (option.is_default())
continue;
uclconfig.insert({option.name(), option.to_ucl()});
}
auto ucl_text = std::format("{:c}", uclconfig);
auto ret = safe_write_file(filename, ucl_text);
if (!ret)
return std::unexpected(nihil::error(
std::format("cannot write {}", filename.string()),
ret.error()));
return {};
} catch (ucl::error const &exc) {
return std::unexpected(nihil::error(
"failed to serialize configuration",
nihil::error(exc.what())));
}
};
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