/// <summary>
/// Delete old files
/// </summary>
/// <param name="logStoringPeriod"></param>
/// <param name="tracer"></param>
/// <param name="cleanAllFiles"></param>
public static void Clean(TimeSpan logStoringPeriod, MMTracer tracer, bool cleanAllFiles = false)
{
try
{
if (logStoringPeriod < TimeSpan.FromDays(1))
{
tracer?.Info("Cleaning of old log files is switched off due to zero log storing period.");
return;
}
int deleted = 0;
DateTime cutoffTime = DateTime.Now - logStoringPeriod;
string abbrev = string.IsNullOrEmpty(ApplicationAbbreviation) ? "" : (ApplicationAbbreviation + "_");
string[] files = cleanAllFiles
? Directory.GetFiles(MMTracer.LogPath, "*", SearchOption.AllDirectories)
: Directory.GetFiles(MMTracer.LogPath, $"{s_FileDeleteMask}{abbrev}*.log", SearchOption.TopDirectoryOnly);
foreach (string fn in files)
{
if ((new FileInfo(fn)).LastWriteTime < cutoffTime)
{
try
{
File.Delete(fn);
deleted++;
tracer?.Info($"file '{fn}' is deleted.");
}
catch (Exception ex)
{
tracer?.Error($"Error deleting the old log file: {fn}", ex.Message);
}
}
}
if (deleted > 0)
{
tracer?.Info($"{deleted} old log files was deleted.");
}
}
catch (Exception ex)
{
tracer?.Error("Error deleting old log files.", ex);
}
}
private static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
MMTracer tracer = MMTracer.Create("unhandled");
tracer.Error("Unhandled exception occurred!", e.ExceptionObject?.ToString());
}
