void BackupDialog::restore()
{
// Get last backup folder:
KConfig *config = KGlobal::config().data();
KConfigGroup configGroup(config, "Backups");
QString folder = configGroup.readEntry("lastFolder", QDir::homePath()) + "/";
// Ask a file name to the user:
QString filter = "*.tar.gz|" + i18n("Tar Archives Compressed by Gzip") + "\n*|" + i18n("All Files");
QString path = KFileDialog::getOpenFileName(folder, filter, this, i18n("Open Basket Archive"));
if (path.isEmpty()) // User has canceled
return;
// Before replacing the basket data folder with the backup content, we safely backup the current baskets to the home folder.
// So if the backup is corrupted or something goes wrong while restoring (power cut...) the user will be able to restore the old working data:
QString safetyPath = Backup::newSafetyFolder();
FormatImporter copier;
copier.moveFolder(Global::savesFolder(), safetyPath);
// Add the README file for user to cancel a bad restoration:
QString readmePath = safetyPath + i18n("README.txt");
QFile file(readmePath);
if (file.open(QIODevice::WriteOnly)) {
QTextStream stream(&file);
stream << i18n("This is a safety copy of your baskets like they were before you started to restore the backup %1.", KUrl(path).fileName()) + "\n\n"
<< i18n("If the restoration was a success and you restored what you wanted to restore, you can remove this folder.") + "\n\n"
<< i18n("If something went wrong during the restoration process, you can re-use this folder to store your baskets and nothing will be lost.") + "\n\n"
<< i18n("Choose \"Basket\" -> \"Backup & Restore...\" -> \"Use Another Existing Folder...\" and select that folder.") + "\n";
file.close();
}
QString message =
"<p><nobr>" + i18n("Restoring <b>%1</b>. Please wait...", KUrl(path).fileName()) + "</nobr></p><p>" +
i18n("If something goes wrong during the restoration process, read the file <b>%1</b>.", readmePath);
KProgressDialog *dialog = new KProgressDialog(0, i18n("Restore Baskets"), message);
dialog->setModal(/*modal=*/true);
dialog->setAllowCancel(false);
dialog->setAutoClose(true);
dialog->show();
QProgressBar *progress = dialog->progressBar();
progress->setRange(0, 0/*Busy/Undefined*/);
progress->setValue(0);
progress->setTextVisible(false);
// Uncompress:
RestoreThread thread(path, Global::savesFolder());
thread.start();
while (thread.isRunning()) {
progress->setValue(progress->value() + 1); // Or else, the animation is not played!
kapp->processEvents();
usleep(300); // Not too long because if the restore process is finished, we wait for nothing
}
dialog->hide(); // The restore is finished, do not continue to show it while telling the user the application is going to be restarted
delete dialog; // If we only hidden it, it reappeared just after having restored a small backup... Very strange.
dialog = 0; // This was annoying since it is modal and the "BasKet Note Pads is going to be restarted" message was not reachable.
//kapp->processEvents();
// Check for errors:
if (!thread.success()) {
// Restore the old baskets:
QDir dir;
dir.remove(readmePath);
copier.moveFolder(safetyPath, Global::savesFolder());
// Tell the user:
KMessageBox::error(0, i18n("This archive is either not a backup of baskets or is corrupted. It cannot be imported. Your old baskets have been preserved instead."), i18n("Restore Error"));
return;
}
// Note: The safety backup is not removed now because the code can has been wrong, somehow, or the user perhapse restored an older backup by error...
// The restore process will not be called very often (it is possible it will only be called once or twice arround the world during the next years).
// So it is rare enough to force the user to remove the safety folder, but keep him in control and let him safely recover from restoration errors.
Backup::setFolderAndRestart(Global::savesFolder()/*No change*/, i18n("Your backup has been successfuly restored to <b>%1</b>. %2 is going to be restarted to take this change into account."));
}
