public virtual async Task Fetch(IRepository repository, DeploymentInfoBase deploymentInfo, string targetBranch, ILogger logger, ITracer tracer)
        {
            // (A)sync with dropbox
            var dropboxInfo = (DropboxInfo)deploymentInfo;

            _dropBoxHelper.Logger          = logger;
            deploymentInfo.TargetChangeset = await _dropBoxHelper.Sync(dropboxInfo, targetBranch, repository, tracer);
        }