How to disable creation of empty log file on app start?

Question

I have configured log4net in my app successfully but one thing is a little bit annoying for me.

The log file is created (empty) after my app start even if no error o

Answer 1

AcquireLock and ReleaseLock method worked for me, but it bothered me that the file was created/deleted that many times. Here is another similar option that shuts down the logger and deletes the empty logfile when the program completed. Just call RemoveEmptyLogFile when you are done logging.

/// 

/// Sets the logging level for log4net.
/// 
private static void RemoveEmptyLogFile()
{
  //Get the logfilename before we shut it down
  log4net.Appender.FileAppender rootAppender = (log4net.Appender.FileAppender)((log4net.Repository.Hierarchy.Hierarchy)log4net.LogManager.GetRepository()).Root.Appenders[0];
  string filename = rootAppender.File;

  //Shut down all of the repositories to release lock on logfile
  log4net.Repository.ILoggerRepository[] repositories = log4net.LogManager.GetAllRepositories();
  foreach (log4net.Repository.ILoggerRepository repository in repositories)
  {
    repository.Shutdown();
  }

  //Delete log file if it's empty
  var f = new FileInfo(filename);
  if (f.Exists && f.Length <= 0)
  {
    f.Delete();
  }
} // RemoveEmptyLogFile