166 lines
5.1 KiB
C++
166 lines
5.1 KiB
C++
/*
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* Copyright (C) 2016 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "utils/Path.hpp"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <array>
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#include <fstream>
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#include <boost/tokenizer.hpp>
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#include "utils/Crc32Calculator.hpp"
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#include "utils/Exception.hpp"
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#include "utils/ILogger.hpp"
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#include "utils/String.hpp"
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namespace PathUtils
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{
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std::uint32_t computeCrc32(const std::filesystem::path& p)
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{
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Utils::Crc32Calculator crc32;
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std::ifstream ifs{ p.string().c_str(), std::ios_base::binary };
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if (ifs)
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{
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do
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{
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std::array<char, 1024> buffer;
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ifs.read(buffer.data(), buffer.size());
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crc32.processBytes(reinterpret_cast<const std::byte*>(buffer.data()), ifs.gcount());
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} while (ifs);
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}
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else
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{
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LMS_LOG(DBUPDATER, ERROR, "Failed to open file '" << p.string() << "'");
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throw LmsException("Failed to open file '" + p.string() + "'");
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}
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return crc32.getResult();
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}
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bool ensureDirectory(const std::filesystem::path& dir)
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{
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if (std::filesystem::exists(dir))
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return std::filesystem::is_directory(dir);
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else
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return std::filesystem::create_directory(dir);
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}
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Wt::WDateTime getLastWriteTime(const std::filesystem::path& file)
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{
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struct stat sb {};
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if (stat(file.string().c_str(), &sb) == -1)
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throw LmsException("Failed to get stats on file '" + file.string() + "'");
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return Wt::WDateTime::fromTime_t(sb.st_mtime);
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}
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bool exploreFilesRecursive(const std::filesystem::path& directory, std::function<bool(std::error_code, const std::filesystem::path&)> cb, const std::filesystem::path* excludeDirFileName)
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{
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std::error_code ec;
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std::filesystem::directory_iterator itPath{ directory, std::filesystem::directory_options::follow_directory_symlink, ec };
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if (ec)
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{
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cb(ec, directory);
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return true; // try to continue exploring anyway
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}
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if (excludeDirFileName && !excludeDirFileName->empty())
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{
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const std::filesystem::path excludePath{ directory / *excludeDirFileName };
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if (std::filesystem::exists(excludePath, ec))
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{
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LMS_LOG(DBUPDATER, DEBUG, "Found '" << excludePath.string() << "': skipping directory");
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return true;
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}
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}
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std::filesystem::directory_iterator itEnd;
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while (itPath != itEnd)
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{
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bool continueExploring{ true };
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if (ec)
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{
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continueExploring = cb(ec, *itPath);
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}
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else
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{
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if (std::filesystem::is_regular_file(*itPath, ec))
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{
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continueExploring = cb(ec, *itPath);
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}
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else if (std::filesystem::is_directory(*itPath, ec))
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{
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if (!ec)
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continueExploring = exploreFilesRecursive(*itPath, cb, excludeDirFileName);
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else
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continueExploring = cb(ec, *itPath);
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}
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}
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if (!continueExploring)
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return false;
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itPath.increment(ec);
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}
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return true;
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}
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bool hasFileAnyExtension(const std::filesystem::path& file, const std::vector<std::filesystem::path>& supportedExtensions)
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{
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const std::filesystem::path extension{ StringUtils::stringToLower(file.extension().string()) };
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return (std::find(std::cbegin(supportedExtensions), std::cend(supportedExtensions), extension) != std::cend(supportedExtensions));
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}
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bool isPathInRootPath(const std::filesystem::path& path, const std::filesystem::path& rootPath, const std::filesystem::path* excludeDirFileName)
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{
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std::filesystem::path curPath = path;
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while (curPath.parent_path() != curPath)
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{
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curPath = curPath.parent_path();
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if (excludeDirFileName && !excludeDirFileName->empty())
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{
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assert(!excludeDirFileName->has_parent_path());
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std::error_code ec;
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if (std::filesystem::exists(curPath / *excludeDirFileName, ec))
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return false;
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}
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if (curPath == rootPath)
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return true;
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}
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return false;
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}
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} // ns PathUtils
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