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122 lines
3.3 KiB
122 lines
3.3 KiB
/***************************************************************************
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* Copyright (C) 2005 by *
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* Jason Kivlighn (jkivlighn@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#include "convert_sqlite3.h"
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#include <ntqapplication.h>
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#include <ntqfile.h>
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#include <kdebug.h>
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#include <tdeglobal.h>
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#include <tdeconfig.h>
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#include <tdemessagebox.h>
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#include <kprocio.h>
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//FIXME: Some messages should be given to the user about success/failure, but that can't be done in the 0.8.x branch due to i18n.
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ConvertSQLite3::ConvertSQLite3( const TQString &db_file ) : TQObject(), error(false)
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{
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TQString file = db_file;
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if ( file.isEmpty() ) {
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TDEConfig *config = TDEGlobal::config();
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config->setGroup("Server");
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file = config->readEntry("DBFile");
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}
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KProcIO *p = new KProcIO;
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p->setUseShell(true);
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//sqlite OLD.DB .dump | sqlite3 NEW.DB
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*p << "sqlite" << file << ".dump" <<
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"|" << "sqlite3" << file+".new";
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TQApplication::connect( p, TQ_SIGNAL(readReady(KProcIO*)), this, TQ_SLOT(processOutput(KProcIO*)) );
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bool success = p->start( TDEProcess::Block, true );
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if ( !success ) {
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kdDebug()<<"Conversion failed... unable to start TDEProcess"<<endl;
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return;
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}
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if ( error )
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return;
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TQString backup_file = file+".sqlite2";
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int i = 1;
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while ( TQFile::exists(backup_file) ) {
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backup_file = backup_file.left(file.length()+8)+"."+TQString::number(i);
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++i;
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}
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if ( !copyFile( file, backup_file ) ) {
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kdDebug()<<"Unable to backup SQLite 2 database... aborting"<<endl
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<<"A successfully converted SQLite 3 file is available at \""<<file<<".new\"."<<endl;
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}
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else {
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kdDebug()<<"SQLite 2 database backed up to "<<backup_file<<endl;
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if ( !copyFile( file+".new", file ) ) {
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kdDebug()<<"Unable to copy the new SQLite 3 database to: "<<file<<"."<<endl
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<<"You may manually move \""<<file<<".new\" to \""<<file<<"\""<<endl;
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}
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else {
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kdDebug()<<"Conversion successful!"<<endl;
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TQFile::remove(file+".new");
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}
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}
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}
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ConvertSQLite3::~ConvertSQLite3()
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{
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}
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void ConvertSQLite3::processOutput( KProcIO* p )
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{
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TQString error_str, buffer;
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while ( p->readln(buffer) != -1 ) {
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error_str += buffer;
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}
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KMessageBox::error( 0, error_str );
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error = true;
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p->ackRead();
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}
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bool ConvertSQLite3::copyFile( const TQString &oldFilePath, const TQString &newFilePath )
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{
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//load both files
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TQFile oldFile(oldFilePath);
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TQFile newFile(newFilePath);
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bool openOld = oldFile.open( IO_ReadOnly );
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bool openNew = newFile.open( IO_WriteOnly );
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//if either file fails to open bail
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if(!openOld || !openNew) { return false; }
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//copy contents
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uint BUFFER_SIZE = 16000;
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char* buffer = new char[BUFFER_SIZE];
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while(!oldFile.atEnd())
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{
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TQ_ULONG len = oldFile.readBlock( buffer, BUFFER_SIZE );
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newFile.writeBlock( buffer, len );
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}
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//deallocate buffer
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delete[] buffer;
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buffer = NULL;
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return true;
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}
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#include "convert_sqlite3.moc"
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