how to recursive a directory in qt?

[deweyjew]

hi all:
how to recursive a directory in qt?
i use QFileInfoListIterator, but it failed.

can anyone help me? thanks!

[Elgerton]

Something like this ?:

void RecurseDirectory(const QString& sDir)
{
	QDir dir(sDir);
	QFileInfoList list = dir.entryInfoList();
	for (int iList=0;iList<list.count();iList++)
	{
		QFileInfo info = list[iList];
 
		QString sFilePath = info.filePath();
		if (info.isDir())
		{
			// recursive
			if (info.fileName()!=".." && info.fileName()!=".")
			{
				RecurseDirectory(sFilePath);
			}
		}
		else
		{
			// Do something with the file here
		}
	}
}

void RecurseDirectory(const QString& sDir)
{
	QDir dir(sDir);
	QFileInfoList list = dir.entryInfoList();
	for (int iList=0;iList<list.count();iList++)
	{
		QFileInfo info = list[iList];

		QString sFilePath = info.filePath();
		if (info.isDir())
		{
			// recursive
			if (info.fileName()!=".." && info.fileName()!=".")
			{
				RecurseDirectory(sFilePath);
			}
		}
		else
		{
			// Do something with the file here
		}
	}
}

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[patrik08]

hi all:
how to recursive a directory in qt?
i use QFileInfoListIterator, but it failed.

can anyone help me? thanks!

Here You can recursive remove file & dir....

void DownDir_RM(const QString d)
{
   QDir dir(d);
   ///////SqlLog("order to delete dir:"+d+" ");
   if (dir.exists())
   {
      const QFileInfoList list = dir.entryInfoList();
      QFileInfo fi;
      for (int l = 0; l < list.size(); l++)
      {
         fi = list.at(l);
         if (fi.isDir() && fi.fileName() != "." && fi.fileName() != "..")
            DownDir_RM(fi.absoluteFilePath());
         else if (fi.isFile())
         {
              QFile f( fi.absoluteFilePath() );
            bool ret = f.remove();
            if (!ret)
               /////////SqlLog("Can't remove: " + fi.absoluteFilePath() + " (write-protect?)");
             } 
 
      }
      //////////SqlLog("Remove: " + d + " ");
      dir.rmdir(d);
 
   }
}

void DownDir_RM(const QString d)
{
   QDir dir(d);
   ///////SqlLog("order to delete dir:"+d+" ");
   if (dir.exists())
   {
      const QFileInfoList list = dir.entryInfoList();
      QFileInfo fi;
      for (int l = 0; l < list.size(); l++)
      {
         fi = list.at(l);
         if (fi.isDir() && fi.fileName() != "." && fi.fileName() != "..")
            DownDir_RM(fi.absoluteFilePath());
         else if (fi.isFile())
         {
              QFile f( fi.absoluteFilePath() );
            bool ret = f.remove();
            if (!ret)
               /////////SqlLog("Can't remove: " + fi.absoluteFilePath() + " (write-protect?)");
             } 
        
      }
      //////////SqlLog("Remove: " + d + " ");
      dir.rmdir(d);
      
   }
}

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[deweyjew]

i use qt/e2.3.10, my code is below, but it doesn't work, why?

int addFileFromDir(const QString& d)
{
	QDir dir( d );
	dir.setMatchAllDirs( true );
	dir.setSorting(QDir::DirsFirst | QDir::IgnoreCase);
	if( !dir.exists() )
	{
		return -1;
	}
	QString file;
	const QFileInfoList * list = dir.entryInfoList();
	if( list )
	{
		QFileInfoListIterator it(*list);
		QFileInfo *fi;
		while ( (fi = it.current()) != 0 )
		{
			qDebug( fi->absFilePath() );
			if ( !fi->isDir() )
			{
				//do something
			} 
			else if ( fi->isDir() && (fi->fileName()!=".") && (fi->fileName()!="..") ) 
			{
				addFileFromDir( fi->absFilePath() );
			}
			++it;
		}
	}
	return 0;
}

int addFileFromDir(const QString& d)
{
	QDir dir( d );
	dir.setMatchAllDirs( true );
	dir.setSorting(QDir::DirsFirst | QDir::IgnoreCase);
	if( !dir.exists() )
	{
		return -1;
	}
	QString file;
	const QFileInfoList * list = dir.entryInfoList();
	if( list )
	{
		QFileInfoListIterator it(*list);
		QFileInfo *fi;
		while ( (fi = it.current()) != 0 )
		{
			qDebug( fi->absFilePath() );
			if ( !fi->isDir() )
			{
				//do something
			} 
			else if ( fi->isDir() && (fi->fileName()!=".") && (fi->fileName()!="..") ) 
			{
				addFileFromDir( fi->absFilePath() );
			}
			++it;
		}
	}
	return 0;
}

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[deweyjew]

i know why, there is another bug in other code
thank you all the same!

[Elgerton]

void DownDir_RM(const QString d)
{
   ....
}

void DownDir_RM(const QString d)
{
   ....
}

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And what is the difference between your and my example?