Files
update-client/Updater/main.cpp
T
Comely fe5aa5bbf0 feat(hardening): 内嵌产品配置 + 系统级状态 + 全量 i18n + 依赖治理 + 资料清理
update-client-hardening 四工作流合入(构建/静态检查已过):

- 配置:不可变产品策略经 UpdateClientResources.cmake 归一化校验后
  内嵌 qrc(URL/相对路径/主程序必须落 install_root/版本/UUID 格式,
  CMake override 写入前复验);可变机器状态迁系统级原生存储;
  运行目录不再落可编辑 app_config.json。
- i18n:生产源全英文(no-Han 检查 41/41),中文进 translations/
  zh_CN 目录;翻译加载收敛 Common/TranslationHelper 唯一入口;
  Bootstrap 补资源文件。
- 依赖:Qt/OpenSSL/架构/Perl 机器路径改 imported targets +
  UpdateClientDependencies.cmake,3rdparty 由父工程契约供给。
- 清理:旧 README/SDK README/3 个重复 PowerShell 打包脚本/PDF 提取
  文本删除,canonical README + 5 份结构化英文文档替代;Launcher
  requireAdministrator manifest;统一 MSVC /utf-8 删运行时编码设置。
2026-07-10 00:38:23 -07:00

526 lines
27 KiB
C++

#include <QApplication>
#include <QCoreApplication>
#include <QDebug>
#include <QDir>
#include <QDirIterator>
#include <QElapsedTimer>
#include <QFile>
#include <QMessageBox>
#include <QProcess>
#include <QProgressDialog>
#include <QSaveFile>
#include <QStorageInfo>
#include <QThread>
#include "UpdaterLogic.h"
#include "UpdateTransaction.h"
#include "FileHelper.h"
#include "ConfigHelper.h"
#include "TicketHelper.h"
#include "PolicyHelper.h"
#include "TranslationHelper.h"
#include <QVersionNumber>
int main(int argc, char* argv[])
{
QApplication app(argc, argv);
QApplication::setApplicationName("Marsco Updater");
TranslationHelper translation;
translation.installForSystemLocale();
UpdaterLogic logic;
QString offlinePackagePath;
QString appId;
QString channel;
QString targetVersion;
int targetVersionId = 0;
if (argc >= 2 && QString(argv[1]).startsWith("--offline-package=")) {
offlinePackagePath = QString(argv[1]).mid(QString("--offline-package=").size());
if (!logic.loadOfflinePackage(offlinePackagePath)) {
QMessageBox::critical(nullptr, QCoreApplication::translate("Updater", "Invalid Offline Package"), logic.offlineError());
return -1;
}
const QJsonObject packageManifest = logic.getManifest();
appId = packageManifest.value("app_id").toString();
channel = packageManifest.value("channel").toString();
targetVersion = packageManifest.value("version").toString();
targetVersionId = packageManifest.value("manifest_seq").toInt();
} else {
if (argc < 5) {
QMessageBox::critical(
nullptr,
QCoreApplication::translate("Updater", "Invalid Updater Arguments"),
QCoreApplication::translate("Updater", "The updater requires online update arguments or an offline update package."));
return -1;
}
appId = argv[1]; channel = argv[2]; targetVersion = argv[3]; targetVersionId = QString(argv[4]).toInt();
}
QString bootstrapResult;
for (int i = 5; i < argc; ++i) {
const QString arg = argv[i];
if (arg.startsWith("--bootstrap-resume="))
bootstrapResult = arg.mid(QString("--bootstrap-resume=").size());
}
const bool resumingFromBootstrap = !bootstrapResult.isEmpty();
const QString runtimeDir = QApplication::applicationDirPath();
ConfigHelper& config = ConfigHelper::instance();
const QString targetDir = config.installRoot();
const QString updateDir = config.updateRoot();
QDir().mkpath(updateDir);
if (appId != config.getValue("App", "app_id") || channel != config.getValue("App", "channel")) {
QMessageBox::critical(
nullptr,
QCoreApplication::translate("Updater", "Offline Package Not Applicable"),
QCoreApplication::translate("Updater", "The update package application or channel does not match this installation."));
return -1;
}
QString fromVersion = config.getValue("App", "current_version");
PolicyHelper updatePolicy(runtimeDir);
const bool policyApplicable =
updatePolicy.loadPolicy() && updatePolicy.isValid()
&& updatePolicy.isApplicable(appId, channel, fromVersion)
&& !updatePolicy.isExpired()
&& updatePolicy.isVersionAllowed(targetVersion);
if (!policyApplicable
|| (!offlinePackagePath.isEmpty() && !updatePolicy.isOfflineAllowed()))
{
QMessageBox::critical(
nullptr,
QCoreApplication::translate("Updater", "Update Denied"),
QCoreApplication::translate(
"Updater",
"The local signed policy is invalid, expired, not applicable to this installation, or does not allow the requested update."));
return -1;
}
if (QVersionNumber::compare(QVersionNumber::fromString(targetVersion),
QVersionNumber::fromString(fromVersion)) < 0
&& !updatePolicy.allowRollback())
{
QMessageBox::critical(
nullptr,
QCoreApplication::translate("Updater", "Downgrade Prohibited"),
QCoreApplication::translate("Updater", "The current signed policy does not allow installing an older version."));
return -1;
}
QString deviceId = config.getValue("Update", "device_id");
if (deviceId.isEmpty()) deviceId = "unknown_device";
if (!resumingFromBootstrap) {
QString restoredVersion;
QString recoveryError;
if (!UpdateTransaction::recoverInterrupted(targetDir, updateDir, &restoredVersion, &recoveryError)) {
QMessageBox::critical(
nullptr,
QCoreApplication::translate("Updater", "Update Recovery Failed"),
QCoreApplication::translate("Updater", "The previous update did not finish, and the old version could not be restored: %1\nDo not continue running the software. Contact an administrator.")
.arg(recoveryError));
return -1;
}
if (!restoredVersion.isEmpty() && restoredVersion != fromVersion) {
if (!config.setValue("App", "current_version", restoredVersion)) {
QMessageBox::critical(
nullptr,
QCoreApplication::translate("Updater", "Update Recovery Failed"),
QCoreApplication::translate("Updater", "The old files were restored, but the version state could not be restored. Check access to the system state store."));
return -1;
}
fromVersion = restoredVersion;
}
}
QProgressDialog progress(QCoreApplication::translate("Updater", "Preparing the update..."), QString(), 0, 100);
progress.setWindowTitle(QCoreApplication::translate("Updater", "Updating to %1").arg(targetVersion));
progress.setCancelButton(nullptr);
progress.setWindowModality(Qt::ApplicationModal);
progress.setMinimumDuration(0);
progress.setAutoClose(false);
progress.setValue(2);
progress.show();
QApplication::processEvents();
UpdateTransaction transaction(targetDir, updateDir, fromVersion, targetVersion, targetVersionId);
const auto setProgress = [&](int value, const QString& message) {
progress.setValue(value);
progress.setLabelText(message);
QApplication::processEvents();
};
const auto formatBytes = [](qint64 bytes) {
const double value = static_cast<double>(bytes);
if (bytes >= 1024LL * 1024 * 1024)
return QString::number(value / (1024.0 * 1024 * 1024), 'f', 2) + " GB";
if (bytes >= 1024LL * 1024)
return QString::number(value / (1024.0 * 1024), 'f', 2) + " MB";
if (bytes >= 1024)
return QString::number(value / 1024.0, 'f', 1) + " KB";
return QString::number(bytes) + " B";
};
QObject::connect(&logic, &UpdaterLogic::downloadProgress,
[&](qint64 received, qint64 total, const QString& path, double bytesPerSecond) {
const int value = total > 0 ? 30 + static_cast<int>(30 * received / total) : 60;
const QString fileText = path.isEmpty()
? QCoreApplication::translate("Updater", "Preparing the download...")
: QCoreApplication::translate("Updater", "Downloading: %1").arg(path);
progress.setValue(value);
progress.setLabelText(QString("%1\n%2 / %3 | %4/s")
.arg(fileText, formatBytes(received), formatBytes(total),
formatBytes(static_cast<qint64>(bytesPerSecond))));
QApplication::processEvents();
});
const auto reportUpdateResult = [&](bool success) {
if (offlinePackagePath.isEmpty())
logic.reportResult(deviceId, fromVersion, targetVersion, success);
};
const auto fail = [&](const QString& title, const QString& message,
const QString& errorCode = QString("update_failed")) {
transaction.markFailed(errorCode, message);
reportUpdateResult(false);
progress.close();
QMessageBox::critical(nullptr, title, message);
return -1;
};
const auto configuredName = [&](const QString& key, const QString& fallback) {
const QString value = config.getValue("Runtime", key).trimmed();
return value.isEmpty() ? fallback : value;
};
const QString mainExecutable = configuredName("main_executable", "MainApp.exe");
const QString updaterExecutable = configuredName("updater_executable", "Updater.exe");
const QString bootstrapExecutable = configuredName("bootstrap_executable", "Bootstrap.exe");
bool timeoutOk = false;
int healthCheckTimeoutMs = config.getValue("Runtime", "health_check_timeout_ms").toInt(&timeoutOk);
if (!timeoutOk || healthCheckTimeoutMs < 1000) healthCheckTimeoutMs = 15000;
const QString mainAppPath = QDir(runtimeDir).filePath(mainExecutable);
const QString updaterPath = QDir(runtimeDir).filePath(updaterExecutable);
const QString bootstrapPath = QDir(runtimeDir).filePath(bootstrapExecutable);
const QString launchToken = config.getValue("App", "launch_token");
const auto launchMainApp = [&](const QString& healthFile = QString()) {
QString ticketPath;
QString ticketError;
const QString launchVersion = config.getValue("App", "current_version");
if (!TicketHelper::createTicket(appId, deviceId, launchVersion, launchToken,
&ticketPath, &ticketError)) {
qDebug() << "Cannot create launch ticket:" << ticketError;
return false;
}
QStringList args{QString("--ticket-file=%1").arg(ticketPath)};
if (!healthFile.isEmpty()) args.append(QString("--health-file=%1").arg(healthFile));
const bool started = QProcess::startDetached(mainAppPath, args);
if (!started) QFile::remove(ticketPath);
return started;
};
const auto bootstrapPlanFile = [&]() {
return QDir(updateDir).filePath("bootstrap_plan_" + transaction.transactionId() + ".txt");
};
const auto launchBootstrap = [&](const QString& mode) {
const QStringList args{
bootstrapPlanFile(), targetDir, transaction.stagingDir(), transaction.backupDir(), updaterPath,
QString::number(QCoreApplication::applicationPid()), appId, channel,
targetVersion, QString::number(targetVersionId), mode
};
return QFile::exists(bootstrapPath) && QProcess::startDetached(bootstrapPath, args);
};
const auto delegateRollback = [&](const QString& title, const QString& reason) {
FileHelper::killProcess(mainExecutable);
transaction.markRollbackRequired(reason);
progress.setLabelText(QCoreApplication::translate("Updater", "Handing rollback over to Bootstrap..."));
QApplication::processEvents();
if (launchBootstrap("rollback")) {
progress.close();
return 0;
}
reportUpdateResult(false);
progress.close();
QMessageBox::critical(nullptr, title,
reason + QCoreApplication::translate("Updater", "\n\nBootstrap could not be started to perform the rollback. Do not continue running the software. Contact an administrator."));
return -1;
};
if (resumingFromBootstrap) {
QString resumeError;
if (!transaction.resumeExisting(&resumeError)) {
reportUpdateResult(false);
progress.close();
QMessageBox::critical(
nullptr,
QCoreApplication::translate("Updater", "Transaction Resume Failed"),
QCoreApplication::translate("Updater", "Cannot read the Bootstrap update transaction: %1").arg(resumeError));
return -1;
}
fromVersion = transaction.fromVersion();
if (QFile::exists(QDir(transaction.backupDir()).filePath(".offline_mode")))
offlinePackagePath = "__bootstrap_resumed_offline__";
if (bootstrapResult == "rolledback") {
const bool stateOk = config.setValue("App", "current_version", fromVersion);
transaction.markRolledBack();
reportUpdateResult(false);
if (stateOk) launchMainApp();
progress.close();
QMessageBox::warning(
nullptr,
QCoreApplication::translate("Updater", "Update Rolled Back"),
stateOk
? QCoreApplication::translate("Updater", "The new version could not be installed or started. The old version was restored and started automatically.")
: QCoreApplication::translate("Updater", "The old files were restored, but the old version number could not be written back. Check permissions on the system state store."));
return stateOk ? 0 : -1;
}
if (bootstrapResult != "success") {
reportUpdateResult(false);
progress.close();
QMessageBox::critical(
nullptr,
QCoreApplication::translate("Updater", "Automatic Rollback Failed"),
QCoreApplication::translate("Updater", "Bootstrap could not fully restore the old version. Do not continue running the software. Contact an administrator."));
return -1;
}
} else if (!transaction.initialize()) {
return fail(
QCoreApplication::translate("Updater", "Update Preparation Failed"),
QCoreApplication::translate("Updater", "Cannot create the update transaction directory or save its state."),
"transaction_init_failed");
} else if (!offlinePackagePath.isEmpty()) {
QFile marker(QDir(transaction.backupDir()).filePath(".offline_mode"));
if (!marker.open(QIODevice::WriteOnly) || marker.write("offline\n") != 8)
return fail(
QCoreApplication::translate("Updater", "Update Preparation Failed"),
QCoreApplication::translate("Updater", "Cannot save the offline transaction marker."),
"offline_marker_failed");
}
setProgress(
resumingFromBootstrap ? 72 : 10,
offlinePackagePath.isEmpty()
? QCoreApplication::translate("Updater", "Fetching and validating the version manifest...")
: QCoreApplication::translate("Updater", "Validating the offline update package..."));
const QString manifestCacheDir = QDir(updateDir).filePath("manifest_cache");
if (resumingFromBootstrap) {
if (!logic.loadManifestCache(manifestCacheDir, targetVersion))
return delegateRollback(
QCoreApplication::translate("Updater", "Manifest Cache Failed"),
QCoreApplication::translate("Updater", "The signed manifest cache could not be read after Bootstrap installation."));
} else if (offlinePackagePath.isEmpty()) {
logic.getManifest(appId, channel, targetVersion, targetVersionId);
}
if (!logic.verifyManifestSignature()) {
if (resumingFromBootstrap)
return delegateRollback(
QCoreApplication::translate("Updater", "Security Validation Failed"),
QCoreApplication::translate("Updater", "The version manifest signature could not be revalidated after Bootstrap installation."));
return fail(
QCoreApplication::translate("Updater", "Security Validation Failed"),
QCoreApplication::translate("Updater", "The version manifest signature is invalid. The update has stopped. Contact an administrator."),
"manifest_signature_invalid");
}
QStringList obsoletePaths;
if (!resumingFromBootstrap && fromVersion != targetVersion) {
UpdaterLogic oldManifestLogic;
if (oldManifestLogic.loadManifestCache(manifestCacheDir, fromVersion)
&& oldManifestLogic.getManifest().value("version").toString() == fromVersion
&& oldManifestLogic.verifyManifestSignature()) {
obsoletePaths = logic.obsoleteFilesComparedTo(oldManifestLogic.getManifest());
qDebug() << "Obsolete files from signed previous manifest:" << obsoletePaths;
} else {
qDebug() << "No valid signed previous manifest cache; obsolete deletion skipped for safety";
}
}
if (!logic.saveManifestCache(manifestCacheDir)) {
if (resumingFromBootstrap)
return delegateRollback(
QCoreApplication::translate("Updater", "Manifest Cache Failed"),
QCoreApplication::translate("Updater", "Cannot save the new version manifest cache."));
return fail(
QCoreApplication::translate("Updater", "Manifest Cache Failed"),
QCoreApplication::translate("Updater", "Cannot save the new version manifest cache. The update has stopped."),
"manifest_cache_failed");
}
if (!resumingFromBootstrap) {
setProgress(
25,
offlinePackagePath.isEmpty()
? QCoreApplication::translate("Updater", "Fetching secure download URLs...")
: QCoreApplication::translate("Updater", "Preparing offline package files..."));
if (offlinePackagePath.isEmpty())
logic.getDownloadUrl(appId, channel, targetVersion, targetVersionId);
if (logic.getFileList().isEmpty())
return fail(
QCoreApplication::translate("Updater", "No Update Files"),
QCoreApplication::translate("Updater", "The server returned no version files. The update has stopped."),
"empty_file_list");
QStorageInfo storage(updateDir);
storage.refresh();
const qint64 requiredBytes = logic.estimateAdditionalDiskBytes(targetDir, obsoletePaths);
const qint64 availableBytes = storage.bytesAvailable();
if (!storage.isValid() || !storage.isReady() || availableBytes < requiredBytes) {
return fail(
QCoreApplication::translate("Updater", "Insufficient Disk Space"),
QCoreApplication::translate("Updater", "The update requires at least %1 of free space, but the installation drive has only %2 available.\nThe required space includes downloaded files, the old-version backup, and a safety margin.")
.arg(formatBytes(requiredBytes), formatBytes(qMax<qint64>(0, availableBytes))),
"disk_space_insufficient");
}
const QString stagingDir = transaction.stagingDir();
setProgress(
30,
(offlinePackagePath.isEmpty()
? QCoreApplication::translate("Updater", "Downloading and validating %1 version files...")
: QCoreApplication::translate("Updater", "Extracting and validating %1 offline files..."))
.arg(logic.getFileList().size()));
if (!offlinePackagePath.isEmpty()) {
if (!logic.loadOfflinePackage(offlinePackagePath, stagingDir))
return fail(QCoreApplication::translate("Updater", "Offline Package Extraction Failed"), logic.offlineError(), "offline_package_invalid");
} else {
if (!logic.downloadAllFiles(stagingDir, targetDir)) {
logic.reportDownloadResult(appId, channel, targetVersion, false);
return fail(
QCoreApplication::translate("Updater", "Download Failed"),
QCoreApplication::translate("Updater", "Some files could not be downloaded or failed SHA-256 validation. Check the network and try again."),
"download_failed");
}
logic.reportDownloadResult(appId, channel, targetVersion, true);
}
setProgress(58, QCoreApplication::translate("Updater", "Validating the complete version files..."));
if (!logic.validateLocalFiles(stagingDir, targetDir))
return fail(
QCoreApplication::translate("Updater", "File Validation Failed"),
QCoreApplication::translate("Updater", "The staged files do not match the version manifest. The update has stopped."),
"staging_verify_failed");
QStringList changedPaths;
QDir stagingRoot(stagingDir);
QDirIterator stagingFiles(stagingDir, QDir::Files, QDirIterator::Subdirectories);
while (stagingFiles.hasNext())
changedPaths.append(QDir::fromNativeSeparators(stagingRoot.relativeFilePath(stagingFiles.next())));
const QString runtimePrefix = config.runtimeRelativePath();
const QString bootstrapManifestPath = QDir::fromNativeSeparators(
runtimePrefix.isEmpty() ? bootstrapExecutable : runtimePrefix + "/" + bootstrapExecutable);
for (const QString& path : changedPaths) {
if (path.compare(bootstrapManifestPath, Qt::CaseInsensitive) == 0)
return fail(
QCoreApplication::translate("Updater", "Bootstrap Cannot Update Itself"),
QCoreApplication::translate("Updater", "This version contains a new %1. Upgrade this component with the installer, then republish the application version.").arg(bootstrapManifestPath),
"bootstrap_self_update_blocked");
}
if (!transaction.recordVerifiedFiles(changedPaths, obsoletePaths))
return fail(
QCoreApplication::translate("Updater", "Transaction Recording Failed"),
QCoreApplication::translate("Updater", "Cannot save the validated-file or pending-deletion lists. The update has stopped."),
"transaction_record_failed");
setProgress(66, QCoreApplication::translate("Updater", "Closing the main application..."));
if (!FileHelper::killProcess(mainExecutable))
return fail(
QCoreApplication::translate("Updater", "Cannot Close Main Application"),
QCoreApplication::translate("Updater", "%1 is still running. Close it manually and try again.").arg(mainExecutable),
"mainapp_close_failed");
setProgress(72, QCoreApplication::translate("Updater", "Backing up %1 files to be changed, including %2 deletions...")
.arg(changedPaths.size() + obsoletePaths.size()).arg(obsoletePaths.size()));
if (!transaction.backupCurrentFiles())
return fail(
QCoreApplication::translate("Updater", "Backup Failed"),
QCoreApplication::translate("Updater", "Cannot back up the current version files. The new version has not been installed. Check disk space and directory permissions."),
"backup_failed");
const QString planFile = bootstrapPlanFile();
QSaveFile plan(planFile);
if (!plan.open(QIODevice::WriteOnly))
return fail(
QCoreApplication::translate("Updater", "Handoff Preparation Failed"),
QCoreApplication::translate("Updater", "Cannot create the Bootstrap file plan."),
"bootstrap_plan_failed");
const auto writePlanItem = [&](char operation, const QString& path) {
const QByteArray line = QByteArray(1, operation) + '\t' + path.toUtf8() + '\n';
return plan.write(line) == line.size();
};
for (const QString& path : changedPaths) {
if (!writePlanItem('C', path)) {
plan.cancelWriting();
return fail(
QCoreApplication::translate("Updater", "Handoff Preparation Failed"),
QCoreApplication::translate("Updater", "Cannot write the Bootstrap copy plan."),
"bootstrap_plan_failed");
}
}
for (const QString& path : obsoletePaths) {
if (!writePlanItem('D', path)) {
plan.cancelWriting();
return fail(
QCoreApplication::translate("Updater", "Handoff Preparation Failed"),
QCoreApplication::translate("Updater", "Cannot write the Bootstrap deletion plan."),
"bootstrap_plan_failed");
}
}
if (!plan.commit() || !transaction.markAwaitingBootstrap())
return fail(
QCoreApplication::translate("Updater", "Handoff Preparation Failed"),
QCoreApplication::translate("Updater", "Cannot commit the Bootstrap file plan or transaction state."),
"bootstrap_plan_failed");
setProgress(78, QCoreApplication::translate("Updater", "Handing installation over to Bootstrap..."));
if (!launchBootstrap("install"))
return fail(
QCoreApplication::translate("Updater", "Bootstrap Startup Failed"),
QCoreApplication::translate("Updater", "Cannot start the independent update handoff program: %1").arg(bootstrapPath),
"bootstrap_start_failed");
progress.close();
return 0;
}
setProgress(82, QCoreApplication::translate("Updater", "Validating the Bootstrap installation result..."));
if (!transaction.markPostVerify() || !logic.validateLocalFiles(targetDir))
return delegateRollback(
QCoreApplication::translate("Updater", "Installation Validation Failed"),
QCoreApplication::translate("Updater", "The new version files failed validation after installation."));
for (const QString& path : transaction.obsoletePaths()) {
if (QFile::exists(QDir(targetDir).filePath(path)))
return delegateRollback(
QCoreApplication::translate("Updater", "Obsolete File Cleanup Failed"),
QCoreApplication::translate("Updater", "An obsolete file still exists: %1").arg(path));
}
setProgress(89, QCoreApplication::translate("Updater", "Saving the new version state..."));
if (!config.setValue("App", "current_version", targetVersion)
|| config.getValue("App", "current_version") != targetVersion)
return delegateRollback(
QCoreApplication::translate("Updater", "State Save Failed"),
QCoreApplication::translate("Updater", "Cannot save the current version number."));
const QString healthFile = transaction.healthFile();
QFile::remove(healthFile);
setProgress(94, QCoreApplication::translate("Updater", "Starting the new version and waiting for a health confirmation..."));
if (!launchMainApp(healthFile))
return delegateRollback(
QCoreApplication::translate("Updater", "Startup Failed"),
QCoreApplication::translate("Updater", "%1 could not be started.").arg(mainExecutable));
QElapsedTimer healthTimer;
healthTimer.start();
while (healthTimer.elapsed() < healthCheckTimeoutMs && !QFile::exists(healthFile)) {
QApplication::processEvents();
QThread::msleep(100);
}
if (!QFile::exists(healthFile))
return delegateRollback(
QCoreApplication::translate("Updater", "Startup Confirmation Failed"),
QCoreApplication::translate("Updater", "The new version did not complete its startup health confirmation within %1 milliseconds.").arg(healthCheckTimeoutMs));
setProgress(99, QCoreApplication::translate("Updater", "Committing the update transaction..."));
if (!transaction.commit())
return delegateRollback(
QCoreApplication::translate("Updater", "Transaction Commit Failed"),
QCoreApplication::translate("Updater", "The new version started, but the update transaction could not be committed."));
QFile::remove(healthFile);
QFile::remove(bootstrapPlanFile());
reportUpdateResult(true);
progress.setValue(100);
progress.close();
QMessageBox::information(
nullptr,
QCoreApplication::translate("Updater", "Update Complete"),
QCoreApplication::translate("Updater", "The software was updated successfully to %1 and passed the startup health check.").arg(targetVersion));
return 0;
}