Rework tarball logic further
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77cbfb46cf
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881adad442
@ -416,187 +416,196 @@ std::vector<std::string> extract_files_excluded(const std::string& filepath) {
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}
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// Function to create a tarball
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void create_tarball(const std::string& tarballPath, const std::string& directory, const std::vector<std::string>& exclusions, std::shared_ptr<Log> log) {
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log->append("Creating tarball: " + tarballPath);
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void create_tarball(const std::string &tarball_path,
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const std::string &directory,
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const std::vector<std::string> &exclusions,
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std::shared_ptr<Log> log) {
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if (log)
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log->append("Creating tarball: " + tarball_path);
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try {
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struct archive* a = archive_write_new();
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if (!a) throw std::runtime_error("Failed to create a new archive.");
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// Ensure the source directory exists and is a directory.
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if (!fs::exists(directory) || !fs::is_directory(directory)) throw std::runtime_error("Source directory does not exist or is not a directory: " + directory);
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if (archive_write_add_filter_gzip(a) != ARCHIVE_OK) {
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// Use RAII for the archive writer.
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struct ArchiveDeleter {
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void operator()(struct archive *a) const {
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if (a) archive_write_free(a);
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}
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};
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std::unique_ptr<struct archive, ArchiveDeleter> a(archive_write_new());
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if (!a) throw std::runtime_error("Failed to create a new archive writer.");
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if (archive_write_add_filter_gzip(a.get()) != ARCHIVE_OK) {
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std::string err = "Failed to add gzip filter: ";
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err += archive_error_string(a);
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archive_write_free(a);
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err += archive_error_string(a.get());
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throw std::runtime_error(err);
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}
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if (archive_write_set_format_pax_restricted(a) != ARCHIVE_OK) {
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std::string err = "Failed to set format: ";
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err += archive_error_string(a);
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archive_write_free(a);
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if (archive_write_set_format_pax_restricted(a.get()) != ARCHIVE_OK) {
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std::string err = "Failed to set archive format: ";
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err += archive_error_string(a.get());
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throw std::runtime_error(err);
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}
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if (archive_write_open_filename(a, tarballPath.c_str()) != ARCHIVE_OK) {
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if (archive_write_open_filename(a.get(), tarball_path.c_str()) != ARCHIVE_OK) {
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std::string err = "Could not open tarball for writing: ";
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err += archive_error_string(a);
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archive_write_free(a);
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err += archive_error_string(a.get());
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throw std::runtime_error(err);
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}
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// Iterate through the directory recursively without following symlinks
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for (auto it = fs::recursive_directory_iterator(
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directory,
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fs::directory_options::skip_permission_denied);
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// Iterate over the directory recursively.
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for (auto it = fs::recursive_directory_iterator(directory, fs::directory_options::skip_permission_denied);
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it != fs::recursive_directory_iterator(); ++it) {
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const auto& path = it->path();
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try {
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std::error_code ec;
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const auto &path = it->path();
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fs::path relative_path = fs::relative(path, directory, ec);
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if (ec) {
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// Compute a relative path to the source directory.
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std::error_code ec;
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fs::path rel_path = fs::relative(path, directory, ec);
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if (ec) {
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if (log)
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log->append("Failed to compute relative path for: " + path.string() + " Error: " + ec.message());
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continue;
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}
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continue;
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}
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fs::path norm_rel_path = rel_path.lexically_normal();
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std::string rel_path_str = norm_rel_path.string();
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// Normalize the relative path to avoid discrepancies
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fs::path normalized_relative_path = relative_path.lexically_normal();
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std::string relative_path_str = normalized_relative_path.string();
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// Exclude files whose relative path contains any exclusion substring.
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bool is_excluded = std::any_of(exclusions.begin(), exclusions.end(),
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[&rel_path_str](const std::string &excl) {
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return rel_path_str.find(excl) != std::string::npos;
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});
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if (is_excluded) continue;
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// Exclusion logic (if any exclusions are provided)
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bool excluded = std::any_of(exclusions.begin(), exclusions.end(), [&relative_path_str](const std::string& exclusion) {
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return relative_path_str.find(exclusion) != std::string::npos;
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});
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if (excluded) { continue; }
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fs::file_status fstatus = it->symlink_status(ec);
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if (ec) {
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// Get file status without following symlinks.
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fs::file_status fstatus = it->symlink_status(ec);
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if (ec) {
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if (log)
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log->append("Failed to get file status for: " + path.string() + " Error: " + ec.message());
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continue;
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}
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continue;
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}
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struct archive_entry* entry = archive_entry_new();
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if (!entry) {
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// Create a new archive entry.
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struct archive_entry *entry = archive_entry_new();
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if (!entry) {
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if (log)
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log->append("Failed to create archive entry for: " + path.string());
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archive_write_free(a);
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throw std::runtime_error("Failed to create archive entry.");
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}
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continue;
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}
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std::string entry_path = relative_path_str;
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if (fs::is_directory(fstatus)) {
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// Ensure the directory pathname ends with '/'
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if (!entry_path.empty() && entry_path.back() != '/') {
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entry_path += '/';
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}
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archive_entry_set_pathname(entry, entry_path.c_str());
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} else {
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archive_entry_set_pathname(entry, entry_path.c_str());
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}
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// For directories, ensure the entry path ends with a '/'
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std::string entry_path = rel_path_str;
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if (fs::is_directory(fstatus)) {
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if (!entry_path.empty() && entry_path.back() != '/')
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entry_path.push_back('/');
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}
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archive_entry_set_pathname(entry, entry_path.c_str());
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// Set file type, permissions, and size
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if (fs::is_regular_file(fstatus)) {
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// Regular file
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uintmax_t filesize = fs::file_size(path, ec);
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if (ec) {
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log->append("Cannot get file size for: " + path.string() + " Error: " + ec.message());
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archive_entry_free(entry);
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continue;
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}
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archive_entry_set_size(entry, static_cast<off_t>(filesize));
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archive_entry_set_filetype(entry, AE_IFREG);
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archive_entry_set_perm(entry, static_cast<mode_t>(fstatus.permissions()));
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}
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else if (fs::is_symlink(fstatus)) {
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fs::path target = fs::read_symlink(path, ec);
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if (ec) {
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log->append("Cannot read symlink for: " + path.string() + " Error: " + ec.message());
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archive_entry_free(entry);
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continue;
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}
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archive_entry_set_symlink(entry, target.c_str());
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archive_entry_set_filetype(entry, AE_IFLNK);
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archive_entry_set_perm(entry, static_cast<mode_t>(fstatus.permissions()));
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}
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else if (fs::is_directory(fstatus)) {
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archive_entry_set_size(entry, 0);
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archive_entry_set_filetype(entry, AE_IFDIR);
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archive_entry_set_perm(entry, static_cast<mode_t>(fstatus.permissions()));
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}
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else {
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log->append("Unsupported file type for: " + path.string());
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archive_entry_free(entry);
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continue;
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}
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// Retrieve and set the modification time
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fs::file_time_type ftime = fs::last_write_time(path, ec);
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std::time_t mtime;
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// Set file type, size, and permissions.
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if (fs::is_regular_file(fstatus)) {
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uintmax_t filesize = fs::file_size(path, ec);
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if (ec) {
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log->append("Failed to get last write time for: " + path.string() + " Error: " + ec.message());
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// Obtain current UTC time as fallback
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auto now = std::chrono::system_clock::now();
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mtime = std::chrono::system_clock::to_time_t(now);
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log->append("Setting default mtime (current UTC time) for: " + path.string());
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} else {
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mtime = to_time_t(ftime);
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}
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archive_entry_set_mtime(entry, mtime, 0);
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if (archive_write_header(a, entry) != ARCHIVE_OK) {
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log->append("Failed to write header for: " + path.string() + " Error: " + archive_error_string(a));
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if (log)
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log->append("Cannot get file size for: " + path.string() + " Error: " + ec.message());
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archive_entry_free(entry);
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continue;
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}
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archive_entry_set_size(entry, static_cast<off_t>(filesize));
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archive_entry_set_filetype(entry, AE_IFREG);
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archive_entry_set_perm(entry, static_cast<mode_t>(fstatus.permissions()));
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} else if (fs::is_directory(fstatus)) {
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archive_entry_set_size(entry, 0);
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archive_entry_set_filetype(entry, AE_IFDIR);
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archive_entry_set_perm(entry, static_cast<mode_t>(fstatus.permissions()));
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} else if (fs::is_symlink(fstatus)) {
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fs::path target = fs::read_symlink(path, ec);
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if (ec) {
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if (log)
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log->append("Cannot read symlink for: " + path.string() + " Error: " + ec.message());
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archive_entry_free(entry);
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continue;
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}
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archive_entry_set_symlink(entry, target.c_str());
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archive_entry_set_filetype(entry, AE_IFLNK);
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archive_entry_set_perm(entry, static_cast<mode_t>(fstatus.permissions()));
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} else {
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if (log)
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log->append("Unsupported file type for: " + path.string());
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archive_entry_free(entry);
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continue;
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}
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if (fs::is_regular_file(fstatus)) {
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std::ifstream fileStream(path, std::ios::binary);
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if (!fileStream) {
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// Set the modification time.
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fs::file_time_type ftime = fs::last_write_time(path, ec);
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std::time_t mtime;
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if (ec) {
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if (log)
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log->append("Failed to get last write time for: " + path.string() + " Error: " + ec.message());
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auto now = std::chrono::system_clock::now();
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mtime = std::chrono::system_clock::to_time_t(now);
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if (log)
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log->append("Setting current UTC time as modification time for: " + path.string());
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} else {
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mtime = to_time_t(ftime);
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}
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archive_entry_set_mtime(entry, mtime, 0);
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// Write the header for the entry.
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if (archive_write_header(a.get(), entry) != ARCHIVE_OK) {
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if (log)
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log->append("Failed to write header for: " + path.string() + " Error: " + archive_error_string(a.get()));
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archive_entry_free(entry);
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continue;
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}
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// If this is a regular file, write its contents.
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if (fs::is_regular_file(fstatus)) {
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std::ifstream in_file(path, std::ios::binary);
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if (!in_file) {
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if (log)
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log->append("Failed to open file for reading: " + path.string());
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archive_entry_free(entry);
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continue;
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}
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const std::size_t bufferSize = 8192;
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char buffer[bufferSize];
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while (fileStream) {
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fileStream.read(buffer, bufferSize);
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std::streamsize bytesRead = fileStream.gcount();
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if (bytesRead > 0) {
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if (archive_write_data(a, buffer, static_cast<size_t>(bytesRead)) < 0) {
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log->append("Failed to write data for: " + path.string() + " Error: " + archive_error_string(a));
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break;
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}
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archive_entry_free(entry);
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continue;
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}
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const std::size_t buffer_size = 8192;
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char buffer[buffer_size];
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while (in_file) {
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in_file.read(buffer, buffer_size);
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std::streamsize bytes_read = in_file.gcount();
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if (bytes_read > 0) {
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if (archive_write_data(a.get(), buffer, static_cast<size_t>(bytes_read)) < 0) {
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if (log)
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log->append("Failed to write data for: " + path.string() + " Error: " + archive_error_string(a.get()));
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break;
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}
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}
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if (fileStream.bad()) {
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log->append("Error reading file: " + path.string());
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}
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}
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archive_entry_free(entry);
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} catch (const std::exception &e) {
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log->append("Failed to add the following file to the tarball: " + path.string());
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log->append(e.what());
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if (in_file.bad() && log)
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log->append("Error reading file: " + path.string());
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}
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// Finish writing the entry.
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if (archive_write_finish_entry(a.get()) != ARCHIVE_OK) {
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if (log)
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log->append("Failed to finish entry for: " + path.string() + " Error: " + archive_error_string(a.get()));
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}
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// No need to call archive_entry_free() as finish_entry() frees the entry.
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}
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if (archive_write_close(a) != ARCHIVE_OK) {
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if (archive_write_close(a.get()) != ARCHIVE_OK) {
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std::string err = "Failed to close archive: ";
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err += archive_error_string(a);
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archive_write_free(a);
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throw std::runtime_error(err);
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}
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if (archive_write_free(a) != ARCHIVE_OK) {
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std::string err = "Failed to free archive: ";
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err += archive_error_string(a);
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err += archive_error_string(a.get());
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throw std::runtime_error(err);
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}
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// The unique_ptr will call archive_write_free() automatically.
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} catch (const std::exception &e) {
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log->append("Failed to create tarball: " + tarballPath);
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log->append(e.what());
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if (log) {
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log->append("Failed to create tarball: " + tarball_path);
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log->append(e.what());
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}
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return;
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}
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log->append("Tarball created and compressed: " + tarballPath);
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if (log)
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log->append("Tarball created and compressed: " + tarball_path);
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}
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