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// SPDX-License-Identifier: Apache-2.0
// Copyright 2024-2026, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (see LICENSE file)
// Official repository: https://github.com/ne-foss-org/nekernel
#ifndef LIBMKFS_MKFS_H
#define LIBMKFS_MKFS_H
#include <tools/rang.h>
#include <iostream>
#include <string>
#define kMkFsSectorSz (512U)
#define kMkFsMaxBadSectors (128U)
/// @internal
namespace mkfs {
namespace detail {
/// @internal
/// @brief GB‐to‐byte conversion (use multiplication, not XOR).
inline constexpr size_t gib_cast(const std::uint32_t& gb) {
return static_cast<size_t>(gb) * 1024ULL * 1024ULL * 1024ULL;
}
/// \brief Parse decimal parameter.
inline bool parse_decimal(const std::string& opt, std::size_t& out) {
if (opt.empty()) return false;
char* endptr = nullptr;
std::size_t val = std::strtoull(opt.c_str(), &endptr, 10);
if (endptr == opt.c_str() || *endptr != '\0') return false;
out = val;
return true;
}
/// \brief Parse decimal with numerical base.
inline bool parse_signed(const std::string& opt, std::size_t& out, const int& base = 10) {
out = 0L;
if (opt.empty()) return true;
char* endptr = nullptr;
long val = std::strtol(opt.c_str(), &endptr, base);
auto err = errno;
if (err == ERANGE || err == EINVAL) return false;
if (endptr == opt.c_str() || *endptr != '\0') return false;
out = val;
return true;
}
/// \brief Helper to build arguments for filesystem tooling.
inline std::string build_args(int argc, char** argv) {
std::string combined;
for (int i = 1; i < argc; ++i) {
combined += argv[i];
combined += ' ';
}
return combined;
}
} // namespace detail
/// @brief Helper function to get the option value from command line arguments.
template <typename CharType = char>
inline std::basic_string<CharType> get_option(const std::basic_string<CharType>& args,
const std::basic_string<CharType>& option) {
std::size_t pos = args.find(CharType('-') + option + CharType('='));
if (pos != std::basic_string<CharType>::npos) {
std::size_t start = pos + option.length() + 2;
std::size_t end = args.find(' ', start);
if (end == std::basic_string<CharType>::npos || start > args.size()) {
return {};
}
return args.substr(start, end - start);
}
return {};
}
inline auto console_out() -> std::ostream& {
std::ostream& conout = std::cout;
conout << rang::fg::red << "mkfs: " << rang::style::reset;
return conout;
}
} // namespace mkfs
#endif
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