| /* |
| * Copyright (C) 2004-2023 Savoir-faire Linux Inc. |
| * |
| * This program is free software: you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <https://www.gnu.org/licenses/>. |
| */ |
| #pragma once |
| |
| #include <string> |
| #include <vector> |
| #include <chrono> |
| #include <mutex> |
| #include <cstdio> |
| #include <ios> |
| #include <filesystem> |
| #include <map> |
| |
| #ifndef _WIN32 |
| #include <sys/stat.h> // mode_t |
| #else |
| #define mode_t unsigned |
| #endif |
| |
| namespace dhtnet { |
| namespace fileutils { |
| |
| /** |
| * Check directory existence and create it with given mode if it doesn't. |
| * @param path to check, relative or absolute |
| * @param dir last directory creation mode |
| * @param parents default mode for all created directories except the last |
| */ |
| bool check_dir(const std::filesystem::path& path, mode_t dir = 0755, mode_t parents = 0755); |
| |
| bool recursive_mkdir(const std::filesystem::path& path, mode_t mode = 0755); |
| |
| inline bool isPathRelative(const std::filesystem::path& path) { |
| return path.is_relative(); |
| } |
| |
| bool isFile(const std::filesystem::path& path, bool resolveSymlink = true); |
| bool isDirectory(const std::filesystem::path& path); |
| bool isSymLink(const std::filesystem::path& path); |
| bool hasHardLink(const std::filesystem::path& path); |
| |
| /** |
| * Read content of the directory. |
| * The result is a list of relative (to @param dir) paths of all entries |
| * in the directory, without "." and "..". |
| */ |
| std::vector<std::string> readDirectory(const std::filesystem::path& dir); |
| |
| /** |
| * Read the full content of a file at path. |
| * If path is relative, it is appended to default_dir. |
| */ |
| std::vector<uint8_t> loadFile(const std::filesystem::path& path); |
| |
| void saveFile(const std::filesystem::path& path, const uint8_t* data, size_t data_size, mode_t mode = 0644); |
| inline void |
| saveFile(const std::filesystem::path& path, const std::vector<uint8_t>& data, mode_t mode = 0644) |
| { |
| saveFile(path, data.data(), data.size(), mode); |
| } |
| |
| std::mutex& getFileLock(const std::filesystem::path& path); |
| |
| /** |
| * Remove a file with optional erasing of content. |
| * Return the same value as std::remove(). |
| */ |
| int remove(const std::filesystem::path& path, bool erase = false); |
| |
| /** |
| * Prune given directory's content and remove it, symlinks are not followed. |
| * Return 0 if succeed, -1 if directory is not removed (content can be removed partially). |
| */ |
| int removeAll(const std::filesystem::path& path, bool erase = false); |
| |
| /** |
| * Windows compatibility wrapper for checking read-only attribute |
| */ |
| int accessFile(const std::string& file, int mode); |
| |
| |
| class IdList |
| { |
| public: |
| IdList(std::filesystem::path p): path(std::move(p)) { |
| load(); |
| } |
| bool add(uint64_t id); |
| private: |
| void load(); |
| std::filesystem::path path; |
| std::map<uint64_t, std::chrono::system_clock::time_point> ids; |
| std::chrono::system_clock::time_point last_maintain; |
| }; |
| |
| } // namespace fileutils |
| } // namespace dhtnet |