public void DeleteFile(string path, DeletionOptions options)
        {
            options = options ?? DeletionOptions.TryThreeTimes;

            if (string.IsNullOrWhiteSpace(path))
            {
                return;
            }

            var firstAttemptFailed = false;

            for (var i = 0; i < options.RetryAttempts; i++)
            {
                try
                {
                    if (File.Exists(path))
                    {
                        if (firstAttemptFailed)
                        {
                            File.SetAttributes(path, FileAttributes.Normal);
                        }
                        File.Delete(path);
                        return;
                    }
                }
                catch
                {
                    Thread.Sleep(options.SleepBetweenAttemptsMilliseconds);
                    firstAttemptFailed = true;
                    if (i == options.RetryAttempts - 1)
                    {
                        if (options.ThrowOnFailure)
                        {
                            throw;
                        }

                        break;
                    }
                }
            }
        }
        public void DeleteDirectory(string path, DeletionOptions options)
        {
            options = options ?? DeletionOptions.TryThreeTimes;

            if (string.IsNullOrWhiteSpace(path))
            {
                return;
            }

            for (var i = 0; i < options.RetryAttempts; i++)
            {
                try
                {
                    var dir = new DirectoryInfo(path);
                    if (dir.Exists)
                    {
                        dir.Attributes = dir.Attributes & ~FileAttributes.ReadOnly;
                        dir.Delete(true);
                        return;
                    }
                }
                catch
                {
                    Thread.Sleep(options.SleepBetweenAttemptsMilliseconds);

                    if (i == options.RetryAttempts - 1)
                    {
                        if (options.ThrowOnFailure)
                        {
                            throw;
                        }
                        break;
                    }
                }
            }
        }