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// Copyright Contributors to the DNF5 project.
// Copyright Contributors to the libdnf project.
// SPDX-License-Identifier: LGPL-2.1-or-later
//
// This file is part of libdnf: https://github.com/rpm-software-management/libdnf/
//
// Libdnf is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 2.1 of the License, or
// (at your option) any later version.
//
// Libdnf 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with libdnf. If not, see <https://www.gnu.org/licenses/>.
#include "libdnf5/utils/fs/temp.hpp"
#include "libdnf5/common/exception.hpp"
#include <libdnf5/utils/bgettext/bgettext-mark-domain.h>
#include <unistd.h>
namespace libdnf5::utils::fs {
TempDir::TempDir(const std::string & name_prefix) : TempDir(std::filesystem::temp_directory_path(), name_prefix) {}
TempDir::TempDir(std::filesystem::path destdir, const std::string & name_prefix) {
destdir /= name_prefix + ".XXXXXX";
// mkdtemp modifies the dest's char * in-place
std::string dest = destdir;
const char * temp_path = mkdtemp(dest.data());
if (temp_path == nullptr) {
throw FileSystemError(errno, destdir, M_("cannot create temporary directory"));
}
path = temp_path;
}
TempDir::TempDir(TempDir && src) noexcept : path(std::move(src.path)) {
src.path.clear();
}
TempDir & TempDir::operator=(TempDir && src) noexcept {
if (&src != this) {
path = std::move(src.path);
src.path.clear();
}
return *this;
}
TempDir::~TempDir() {
try {
if (!path.empty()) {
std::filesystem::remove_all(path);
}
} catch (std::exception &) {
// catch an exception that shouldn't be raised in a destructor
// TODO(lukash) consider logging or printing the exception
}
}
void TempDir::release() noexcept {
path.clear();
}
TempFile::TempFile(const std::string & name_prefix) : TempFile(std::filesystem::temp_directory_path(), name_prefix) {}
TempFile::TempFile(std::filesystem::path destdir, const std::string & name_prefix) {
destdir /= name_prefix + ".XXXXXX";
// mkstemp modifies the dest's char * in-place
std::string dest = destdir;
fd = mkstemp(dest.data());
if (fd == -1) {
throw FileSystemError(errno, destdir, M_("cannot create temporary file"));
}
path = dest;
}
TempFile::TempFile(TempFile && src) noexcept : path(std::move(src.path)), fd(src.fd), file(std::move(src.file)) {
src.path.clear();
src.fd = -1;
src.file.reset();
}
TempFile & TempFile::operator=(TempFile && src) {
if (&src != this) {
file = std::move(src.file);
path = std::move(src.path);
src.path.clear();
fd = src.fd;
src.fd = -1;
}
return *this;
}
TempFile::~TempFile() {
try {
close();
} catch (std::exception &) {
// TODO(lukash) consider logging or printing the exception
}
if (!path.empty()) {
unlink(path.c_str());
}
}
File & TempFile::open_as_file(const char * mode) {
libdnf_assert(fd != -1, "Cannot open as file TempFile that has been closed or released");
libdnf_assert(!file, "This TempFile has already been opened as File");
file.emplace(fd, path, mode);
return *file;
}
void TempFile::close() {
if (file) {
file.reset();
} else if (fd != -1) {
if (::close(fd) != 0) {
throw FileSystemError(errno, path, M_("cannot close temporary file"));
}
}
fd = -1;
}
void TempFile::release() noexcept {
if (file) {
file->release();
file.reset();
}
fd = -1;
path.clear();
}
} // namespace libdnf5::utils::fs
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