diff options
Diffstat (limited to 'application/MultiMC.cpp')
| -rw-r--r-- | application/MultiMC.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/application/MultiMC.cpp b/application/MultiMC.cpp index feda6ec3..c76a171f 100644 --- a/application/MultiMC.cpp +++ b/application/MultiMC.cpp @@ -694,6 +694,11 @@ void MultiMC::installUpdates(const QString updateFilesDir, GoUpdate::OperationLi QList <BackupEntry> backups; QList <BackupEntry> trashcan; + bool useXPHack = false; + QString exePath; + QString exeOrigin; + QString exeBackup; + // perform the update operations for(auto op: operations) { @@ -703,6 +708,20 @@ void MultiMC::installUpdates(const QString updateFilesDir, GoUpdate::OperationLi case GoUpdate::Operation::OP_REPLACE: { QFileInfo replaced (PathCombine(root(), op.dest)); +#ifdef Q_OS_WIN32 + if(QSysInfo::windowsVersion() < QSysInfo::WV_VISTA) + { + if(replaced.fileName() == "MultiMC.exe") + { + QDir rootDir(root()); + exeOrigin = rootDir.relativeFilePath(op.file); + exePath = rootDir.relativeFilePath(op.dest); + exeBackup = rootDir.relativeFilePath(PathCombine(backupPath, replaced.fileName())); + useXPHack = true; + continue; + } + } +#endif if(replaced.exists()) { QString backupName = op.dest; @@ -766,6 +785,39 @@ void MultiMC::installUpdates(const QString updateFilesDir, GoUpdate::OperationLi // try to start the new binary args = qApp->arguments(); args.removeFirst(); + + // on old Windows, do insane things... no error checking here, this is just to have something. + if(useXPHack) + { + QString script; + auto nativePath = QDir::toNativeSeparators(exePath); + auto nativeOriginPath = QDir::toNativeSeparators(exeOrigin); + auto nativeBackupPath = QDir::toNativeSeparators(exeBackup); + + // so we write this vbscript thing... + QTextStream out(&script); + out << "WScript.Sleep 1000\n"; + out << "Set fso=CreateObject(\"Scripting.FileSystemObject\")\n"; + out << "Set shell=CreateObject(\"WScript.Shell\")\n"; + out << "fso.MoveFile \"" << nativePath << "\", \"" << nativeBackupPath << "\"\n"; + out << "fso.MoveFile \"" << nativeOriginPath << "\", \"" << nativePath << "\"\n"; + out << "shell.Run \"" << nativePath << "\"\n"; + + QString scriptPath = PathCombine(root(), "update", "update.vbs"); + + // we save it + QFile scriptFile(scriptPath); + scriptFile.open(QIODevice::WriteOnly); + scriptFile.write(script.toLocal8Bit().replace("\n", "\r\n")); + scriptFile.close(); + + // we run it + started = QProcess::startDetached("wscript", {scriptPath}, root()); + + // and we quit. conscious thought. + qApp->quit(); + return; + } started = QProcess::startDetached(finishCmd, args, QDir::currentPath(), &pid); // failed to start... ? if(!started || pid == -1) |