start working on clone functionality

1 files changed, 86 insertions, 1 deletions

diff --git a/noncore/settings/backup/backuprestore.cpp b/noncore/settings/backup/backuprestore.cpp
index c944c6d..869c1b8 100644
--- a/noncore/settings/backup/backuprestore.cpp
+++ b/noncore/settings/backup/backuprestore.cpp
@@ -1,538 +1,623 @@
 /*
                              This file is part of the Opie Project
                =.
              .=l.            Copyright (c) 2002-2004 The Opie Team <opie-devel@handhelds.org>
            .>+-=
  _;:,     .>    :=|.         This file is free software; you can
 .> <`_,   >  .   <=          redistribute it and/or modify it under
 :`=1 )Y*s>-.--   :           the terms of the GNU General Public
 .="- .-=="i,     .._         License as published by the Free Software
  - .   .-<_>     .<>         Foundation; either version 2 of the License,
      ._= =}       :          or (at your option) any later version.
     .%`+i>       _;_.
     .i_,=:_.      -<s.       This file 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 General
 ..}^=.=       =       ;      Public License for more details.
 ++=   -.     .`     .:
  :     =  ...= . :.=-        You should have received a copy of the GNU
  -.   .:....=;==+<;          General Public License along with this file;
   -_. . .   )=.  =           see the file COPYING. If not, write to the
     --        :-=`           Free Software Foundation, Inc.,
                              59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 #include "backuprestore.h"
 #include "errordialog.h"
 
 /* OPIE */
 #include <qpe/qpeapplication.h>
 #include <qpe/resource.h>
 #include <qpe/config.h>
 #include <opie2/odebug.h>
+#include <opie2/odevice.h>
 #include <opie2/ostorageinfo.h>
 #include <opie2/ofiledialog.h>
 #include <opie2/owait.h>
 using namespace Opie::Core;
 using namespace Opie::Ui;
 
 /* QT */
 #include <qapplication.h>
 #include <qmultilineedit.h>
 #include <qdir.h>
 #include <qfile.h>
 #include <qfileinfo.h>
 #include <qlistview.h>
 #include <qpushbutton.h>
 #include <qradiobutton.h>
 #include <qheader.h>
 #include <qmessagebox.h>
 #include <qcombobox.h>
 #include <qlist.h>
 #include <qregexp.h>
 #include <qtextstream.h>
 #include <qtextview.h>
 #include <qlineedit.h>
 #include <qstringlist.h>
 
 /* STD */
 #include <errno.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <sys/stat.h>
 #include <dirent.h>
 
 #define HEADER_NAME 0
 #define HEADER_BACKUP 1
 #define BACKUP_LOCATION 2
 
 #define EXTENSION ".bck"
 
 const QString tempFileName = "/tmp/backup.err";
 
 BackupAndRestore::BackupAndRestore( QWidget* parent, const char* name,  WFlags fl)
         : BackupAndRestoreBase(parent, name,  fl)
 {
     backupList->header()->hide();
     restoreList->header()->hide();
     locationList->header()->hide();
     connect( backupButton, SIGNAL( clicked() ), this, SLOT( backup() ) );
     connect( restoreButton, SIGNAL( clicked() ), this, SLOT( restore() ) );
     connect( backupList, SIGNAL( clicked( QListViewItem* ) ), this, SLOT( selectItem( QListViewItem* ) ) );
     connect( restoreSource, SIGNAL( activated( int ) ), this, SLOT( sourceDirChanged( int ) ) );
     connect( addLocationButton, SIGNAL( clicked() ), this, SLOT( addLocation() ) );
     connect( removeLocationButton, SIGNAL( clicked() ), this, SLOT( removeLocation() ) );
     connect( saveLocationsButton, SIGNAL( clicked() ), this, SLOT( saveLocations() ) );
     connect( selectLocationButton, SIGNAL( clicked() ), this, SLOT( selectLocation() ) );
 
     //add directorys for backing up
     applicationSettings = new QListViewItem(backupList, "Application Settings", "", "Settings/");
     selectItem(applicationSettings);
     applicationSettings = new QListViewItem(backupList, "Application Data", "", "Applications/");
     selectItem(applicationSettings);
     documents= new QListViewItem(backupList, "Documents", "", "Documents/");
     selectItem(documents);
 
     scanForApplicationSettings();
     refreshLocations();
     refreshBackupLocations();
 
     // Read the list of items to ignore.
     QList<QString> dontBackupList;
     dontBackupList.setAutoDelete(true);
     Config config("BackupAndRestore");
     config.setGroup("DontBackup");
     int total = config.readNumEntry("Total", 0);
     for(int i = 0; i < total; i++)
     {
         dontBackupList.append(new QString(config.readEntry(QString("%1").arg(i), "")));
     }
 
     QList<QListViewItem> list;
     getAllItems(backupList->firstChild(), list);
 
     for(uint i = 0; i < list.count(); i++)
     {
         QString text = list.at(i)->text(HEADER_NAME);
         for(uint i2 = 0;  i2 < dontBackupList.count(); i2++)
         {
             if(*dontBackupList.at(i2) == text)
             {
                 selectItem(list.at(i));
                 break;
             }
         }
     }
     QPEApplication::showWidget( this );
 }
 
 BackupAndRestore::~BackupAndRestore()
 {
     QList<QListViewItem> list;
     getAllItems(backupList->firstChild(), list);
 
     Config config("BackupAndRestore");
     config.setGroup("DontBackup");
     config.clearGroup();
 
     int count = 0;
     for(uint i = 0; i < list.count(); i++)
     {
         if(list.at(i)->text(HEADER_BACKUP) == "")
         {
             config.writeEntry(QString("%1").arg(count), list.at(i)->text(HEADER_NAME));
             count++;
         }
     }
     config.writeEntry("Total", count);
 
     // Remove Temp File
     if ( QFile::exists( tempFileName ) )
         QFile::remove( tempFileName );
 }
 
 void BackupAndRestore::refreshBackupLocations()
 {
     backupLocations.clear();
     // Add cards
     Opie::Core::OStorageInfo storage;
     backupLocations.insert( "Documents", QDir::homeDirPath() + "/Documents" );
     if ( storage.hasCf() )
     {
         backupLocations.insert( "CF", storage.cfPath() );
         odebug << "Cf Path: " + storage.cfPath() << oendl;
     }
     if ( storage.hasSd() )
     {
         backupLocations.insert( "SD", storage.sdPath() );
         odebug << " Sd Path: " + storage.sdPath() << oendl;
     }
     if ( storage.hasMmc() )
     {
         backupLocations.insert( "MMC", storage.mmcPath() );
         odebug << "Mmc Path: " + storage.mmcPath() << oendl;
     }
 
     for ( QListViewItemIterator it( locationList ); it.current(); ++it )
     {
         backupLocations.insert( it.current()->text( 0 ), it.current()->text( 0 ) );
     }
 
     //update QComboBox
     storeToLocation->clear();
     restoreSource->clear();
 
     //read last locations
     Config config("BackupAndRestore");
     config.setGroup("LastLocation");
     QString lastStoreLocation   = config.readEntry( "LastStoreLocation", "" );
     QString lastRestoreLocation = config.readEntry( "LastRestoreLocation", "" );
     int locationIndex    = 0;
 
     //fill QComboBox
     QMap<QString, QString>::Iterator it;
     for( it = backupLocations.begin(); it != backupLocations.end(); ++it )
     {
         storeToLocation->insertItem(it.key());
         restoreSource->insertItem(it.key());
 
         //check for last locations
         if ( it.key() == lastStoreLocation )
             storeToLocation->setCurrentItem( locationIndex );
         if ( it.key() == lastRestoreLocation )
             restoreSource->setCurrentItem( locationIndex );
         locationIndex++;
     }
 }
 
 QList<QListViewItem> BackupAndRestore::getAllItems(QListViewItem *item, QList<QListViewItem> &list)
 {
     while(item)
     {
         if(item->childCount() > 0)
             getAllItems(item->firstChild(), list);
         list.append(item);
         item = item->nextSibling();
     }
     return list;
 }
 
 /**
  * Selects and unselects the item by setting the HEADER_BACKUP to B or !.
  * and changing the icon to match
  * @param currentItem the item to swich the selection choice.
  */
 void BackupAndRestore::selectItem(QListViewItem *currentItem)
 {
     if(!currentItem)
         return;
 
     if(currentItem->text(HEADER_BACKUP) == "B")
     {
         currentItem->setPixmap(HEADER_NAME, Resource::loadPixmap("backup/null"));
         currentItem->setText(HEADER_BACKUP, "");
     }
     else
     {
         currentItem->setPixmap(HEADER_NAME, Resource::loadPixmap("backup/check"));
         currentItem->setText(HEADER_BACKUP, "B");
     }
 }
 
 void BackupAndRestore::scanForApplicationSettings()
 {
     QDir d( QDir::homeDirPath() + "/" + QString( applicationSettings->text(BACKUP_LOCATION) ) );
     d.setFilter( QDir::Dirs | QDir::Files | QDir::NoSymLinks );
     const QFileInfoList *list = d.entryInfoList();
     QFileInfoListIterator it( *list );
     QFileInfo *fi;
     while ( (fi=it.current()) )
     {
         //odebug << (d.path()+"/"+fi->fileName()).latin1() << oendl;
         if ( ( fi->fileName() != "." ) && ( fi->fileName() != ".." ) )
         {
             QListViewItem *newItem = new QListViewItem(applicationSettings, fi->fileName());
             selectItem(newItem);
         }
         ++it;
     }
 }
 
 /**
  * The "Backup" button has been pressed.  Get a list of all of the files that
  * should be backed up.  If there are no files, emit and error and exit.
  * Determine the file name to store the backup in.  Backup the file(s) using
  * tar and gzip  --best.  Report failure or success
  */
 void BackupAndRestore::backup()
 {
     if ( cb_type_userdata->isChecked() )
         backupUserData();
     else
         backupRootFs();
 }
 
 
 void BackupAndRestore::backupRootFs()
 {
-    QMessageBox::critical(this, "Message", "Not Yet Implemented", "Ok" );
+//#define MDEBUG
+#ifndef MDEBUG
+    QMessageBox::critical( this, "Opie-Backup", "<qt>This feature is not yet implemented.</qt>", "Bummer!" );
+    return;
+#endif
+    // call 'mount' and parse its output to gather the device on which the root partition is mounted
+    FILE* mountp = popen( "mount", "r" );
+    QString device;
+    QString mountpoint;
+    {
+        QTextStream mounto( mountp, IO_ReadOnly );
+        QString on;
+        QString type;
+        QString filesystem;
+        QString options;
+        while ( !mounto.atEnd() )
+        {
+            mounto >> device >> on >> mountpoint >> type >> filesystem >> options;
+            if ( mountpoint == "/" ) break;
+        }
+        odebug << device << " is formatted w/ " << filesystem << " and mounted on " << mountpoint << oendl;
+
+        if ( !mountpoint.startsWith( "/dev/mtdblock" ) )
+        {
+            QMessageBox::critical( this, "Can't backup!", QString( "<qt>unsupported rootfs %1 - needs to be /dev/mtdblockN</qt>").arg( device ), "Ok" );
+#ifndef MDEBUG
+            return;
+#endif
+        }
+    } // at this point, the QTextStream has been destroy and we can close the FILE*
+    pclose( mountp );
+
+#ifndef MDEBUG
+    int rootmtd = device.right( 1 ).toInt();
+#else
+    int rootmtd = 0;
+#endif
+    odebug << "root mtdblock seems to be '" << rootmtd << "'" << oendl;
+
+    // scan /proc/mtd to gather the size and erasesize of the root mtdblock
+    QFile procmtdf( "/proc/mtd" );
+    if ( !procmtdf.open( IO_ReadOnly ) )
+    {
+        QMessageBox::critical( this, "Can't backup!", "<qt>Can't open /proc/mtd</qt>", "Ok" );
+    }
+
+    QTextStream procmtd( &procmtdf );
+    for ( int i = 0; i <= rootmtd; ++i ) procmtd.readLine(); // skip uninteresting things
+    QString dev;
+    QString size;
+    QString erasesize;
+    QString devname;
+    procmtd >> dev >> size >> erasesize >> devname;
+
+    odebug << "device " << dev << " size = " << size << ", erase size = " << erasesize << ", name = " << devname << "\"" << oendl;
+
+    // compute pad
+    QString pad = "--pad";
+    switch ( ODevice::inst()->model() )
+    {
+        case Model_Zaurus_SL5000: pad = "--pad=14680064"; break;
+        case Model_Zaurus_SL5500: pad = "--pad=14680064"; break;
+        // FIXME: Add Beagle and SIMpad
+    }
+
+    // compute eraseblock
+    QString eraseblock = "--eraseblock=0x" + erasesize;
+
+    // compute output
+    QString outputFile = "--output=" + backupLocations[storeToLocation->currentText()];
+    QDateTime datetime = QDateTime::currentDateTime();
+    QString dateString = QString::number( datetime.date().year() ) + QString::number( datetime.date().month() ).rightJustify(2, '0') +
+                         QString::number( datetime.date().day() ).rightJustify(2, '0');
+    outputFile += "/initrd.bin-" + dateString;
+
+    // call mkfs.jffs2 to create the backup
+    QString cmdline = QString( "mkfs.jffs2 --root=/ %1 --little-endian %2 %3 -n" ).arg( outputFile ).arg( pad ).arg( eraseblock );
+    owarn << "Calling '" << cmdline << "'" << oendl;
+
+#ifndef MDEBUG
+    ::system( cmdline );
+#endif
+
+    // FIXME: Add image postprocessing for C7x0 and C8x0, for Beagle, for SIMpad
+
 }
 
 void BackupAndRestore::backupUserData()
 {
     QString backupFiles;
     if(getBackupFiles(backupFiles, NULL) == 0)
     {
         QMessageBox::critical(this, "Message",
                               "No items selected.",QString("Ok") );
         return;
     }
 
     OWait *owait = new OWait();
     Global::statusMessage( tr( "Backing up..." ) );
     owait->show();
     qApp->processEvents();
 
     QString outputFile = backupLocations[storeToLocation->currentText()];
 
     QDateTime datetime = QDateTime::currentDateTime();
     QString dateString = QString::number( datetime.date().year() ) + QString::number( datetime.date().month() ).rightJustify(2, '0') +
                          QString::number( datetime.date().day() ).rightJustify(2, '0');
 
     outputFile += "/" + dateString;
 
     QString t = outputFile;
     int c = 1;
     while(QFile::exists(outputFile + EXTENSION))
     {
         outputFile = t + QString("%1").arg(c);
         c++;
     }
 
     // We execute tar and compressing its output with gzip..
     // The error output will be written into a temp-file which could be provided
     // for debugging..
     odebug << "Storing file: " << outputFile.latin1() << "" << oendl;
     outputFile += EXTENSION;
 
     QString commandLine = QString( "cd %1 && (tar -X %1 -cz %2 Applications/backup/exclude -f %3 ) 2> %4" ).arg( QDir::homeDirPath() )
                           .arg( getExcludeFile() )
                           .arg( backupFiles )
                           .arg( outputFile.latin1() )
                           .arg( tempFileName.latin1() );
 
     odebug << commandLine << oendl;
 
     int r = system( commandLine );
 
     owait->hide();
     delete owait;
 
     //Error-Handling
     if(r != 0)
     {
         perror("Error: ");
         QString errorMsg= tr( "Error from System:\n" ) + (QString)strerror( errno );
 
         switch( QMessageBox::critical(this, tr( "Message" ), tr( "Backup Failed!" ) + "\n"
                                       + errorMsg, QString( tr( "Ok" ) ), QString( tr( "Details" ) ) ) )
         {
 
         case 1:
             owarn << "Details pressed !" << oendl;
             ErrorDialog* pErrDialog = new ErrorDialog( this, NULL, true );
             QFile errorFile( tempFileName );
             if ( errorFile.open(IO_ReadOnly) )
             {
                 QTextStream t( &errorFile );
                 QString s;
                 while ( !t.eof() )
                 {        // until end of file...
                     s += t.readLine();       // line of text excluding '\n'
                 }
                 errorFile.close();
 
                 pErrDialog->m_textarea->setText( s );
             }
             else
             {
                 pErrDialog->m_textarea->setText( "Unable to open File: /tmp/backup.er" );
             }
             QPEApplication::execDialog( pErrDialog );
             delete pErrDialog;
             break;
         }
         setCaption(tr("Backup and Restore.. Failed !!"));
         return;
     }
     else
     {
         QMessageBox::information(this, tr( "Message" ), tr( "Backup Successful." ), QString(tr( "Ok" ) ) );
     }
 
     //write store-location
     Config config( "BackupAndRestore" );
     config.setGroup( "LastLocation" );
     config.writeEntry( "LastStoreLocation", storeToLocation->currentText() );
 
     setCaption(tr("Backup and Restore"));
 }
 
 /***
  * Get a list of all of the files to backup.
  */
 int BackupAndRestore::getBackupFiles(QString &backupFiles, QListViewItem *parent)
 {
     QListViewItem * currentItem;
     QString currentHome;
     if(!parent)
         currentItem = backupList->firstChild();
     else
     {
         currentItem = parent->firstChild();
         currentHome = parent->text(BACKUP_LOCATION);
     }
 
     uint count = 0;
     while( currentItem != 0 )
     {
         if(currentItem->text(HEADER_BACKUP) == "B" )
         {
             if(currentItem->childCount() == 0 )
             {
                 if(parent == NULL)
                     backupFiles += currentItem->text(BACKUP_LOCATION);
                 else
                     backupFiles += currentHome + currentItem->text(HEADER_NAME);
                 backupFiles += " ";
                 count++;
             }
             else
             {
                 count += getBackupFiles(backupFiles, currentItem);
             }
         }
         currentItem = currentItem->nextSibling();
     }
     return count;
 }
 
 void BackupAndRestore::sourceDirChanged(int selection)
 {
     restoreList->clear();
     rescanFolder(backupLocations[restoreSource->text(selection)]);
 }
 
 void BackupAndRestore::fileListUpdate()
 {
     owarn << "void BackupAndRestore::fileListUpdate()" << oendl;
     restoreList->clear();
     rescanFolder( backupLocations[restoreSource->currentText()] );
 }
 
 /**
  * Scans directory for any backup files.  Will recursivly go down,
  * but will not follow symlinks.
  * @param directory - the directory to look in.
  */
 void BackupAndRestore::rescanFolder(QString directory)
 {
     //odebug << QString("rescanFolder: ") + directory.latin1() << oendl;
     QDir d(directory);
     if(!d.exists())
         return;
 
     d.setFilter( QDir::Files | QDir::Hidden | QDir::Dirs);
     const QFileInfoList *list = d.entryInfoList();
     QFileInfoListIterator it( *list );
     QFileInfo *file;
     while ( (file=it.current()) )
     {  // for each file...
         // If it is a dir and not .. or . then add it as a tab and go down.
         if(file->isDir())
         {
             if(file->fileName() != ".." && file->fileName() != ".")
             {
                 rescanFolder(directory + "/" + file->fileName());
             }
         }
         else
         {
             // If it is a backup file add to list.
             if(file->fileName().contains(EXTENSION))
                 (void)new QListViewItem(restoreList, file->fileName());
         }
         ++it;
     }
 }
 
 /**
  * Restore a backup file.
  * Report errors or success
  */
 void BackupAndRestore::restore()
 {
     QListViewItem *restoreItem = restoreList->currentItem();
     if(!restoreItem)
     {
         QMessageBox::critical(this, tr( "Message" ),
                               tr( "Please select something to restore." ),QString( tr( "Ok") ) );
         return;
     }
 
     OWait *owait = new OWait();
     Global::statusMessage( tr( "Restore Backup..." ) );
     owait->show();
     qApp->processEvents();
 
     QString restoreFile = backupLocations[restoreSource->currentText()];
 
     restoreFile += "/" + restoreItem->text(0);
 
     odebug << restoreFile << oendl;
 
     //check if backup file come from opie 1.0.x
 
     QString commandLine = QString( "tar -tzf %1 | grep Applications/backup/exclude" ).arg( restoreFile.latin1() );
 
     int r = system( commandLine );
 
     QString startDir;
 
     if( r != 0 ) //Applications/backup/exclude not found - old backup file
     {
         startDir = QString( "/" );
     } else
     {
         startDir = QDir::homeDirPath();
     }
 
     //unpack backup file
     commandLine = QString( "cd %1 && tar -zxf %2 2> %3" ).arg( startDir )
                   .arg( restoreFile.latin1() )
                   .arg( tempFileName.latin1() );
 
     odebug << commandLine << oendl;
 
     r = system( commandLine );
 
     owait->hide();
     delete owait;
 
     //error handling
     if(r != 0)
     {
         QString errorMsg= tr( "Error from System:\n" ) + (QString)strerror( errno );
         switch( QMessageBox::critical(this, tr( "Message" ), tr( "Restore Failed." ) + "\n"
                                       + errorMsg, QString( tr( "Ok") ), QString( tr( "Details" ) ) ) )
         {
         case 1:
             owarn << "Details pressed !" << oendl;
             ErrorDialog* pErrDialog = new ErrorDialog( this, NULL, true );
             QFile errorFile( tempFileName );
             if ( errorFile.open(IO_ReadOnly) )
             {