public async Task <string> GetChangedFileAsync(CancellationToken cancellationToken)
{
foreach (var file in _fileSet)
{
_fileWatcher.WatchDirectory(Path.GetDirectoryName(file));
}
var tcs = new TaskCompletionSource <string>();
cancellationToken.Register(() => tcs.TrySetResult(null));
Action <string> callback = path =>
{
if (_fileSet.Contains(path))
{
tcs.TrySetResult(path);
}
};
_fileWatcher.OnFileChange += callback;
var changedFile = await tcs.Task;
_fileWatcher.OnFileChange -= callback;
return(changedFile);
}
