argparse::ArgumentParser parser("parse-target-meta");

parser.add_argument("path");

parser.add_argument("-o", "--output");

parser.add_argument("--format").default_value(false).implicit_value(true);

return parser;

const argparse::ArgumentParser &parser,

const Dispatcher::Args &args) {

[[maybe_unused]] auto &env = dynamic_cast<AdminEnv &>(ienv);

ENSURE_USAGE(args.empty());

Dispatcher::OutputTable table;

// 1. parse arguments.

Path src = parser.get<std::string>("path");

auto output = parser.present<std::string>("--output");

auto format = parser.get<bool>("--format");

auto readResult = loadFile(src);

CO_RETURN_AND_LOG_ON_ERROR(readResult);

std::map<storage::ChunkId, storage::ChunkMetadata> metas;

CO_RETURN_AND_LOG_ON_ERROR(serde::deserialize(metas, *readResult));

// 5. write to file.

std::ofstream outputFile;

if (output.has_value()) {

outputFile = std::ofstream{output.value()};

if (!outputFile) {

co_return makeError(StatusCode::kInvalidArg, fmt::format("create output file {} failed", output.value()));

}

}

std::ostream &out = output.has_value() ? outputFile : std::cout;

out << serde::toJsonString(metas, false, format) << std::endl;

co_return table;