IObservable <Unit> downloadReleases(IEnumerable <ReleaseEntry> releasesToDownload, IObserver <int> progress = null)
{
progress = progress ?? new Subject <int>();
IObservable <Unit> downloadResult = null;
if (isHttpUrl(updateUrlOrPath))
{
var urls = releasesToDownload.Select(x => String.Format("{0}/{1}", updateUrlOrPath, x.Filename));
var paths = releasesToDownload.Select(x => Path.Combine(rootAppDirectory, "packages", x.Filename));
downloadResult = urlDownloader.QueueBackgroundDownloads(urls, paths, progress);
}
else
{
var toIncrement = 100.0 / releasesToDownload.Count();
// Do a parallel copy from the remote directory to the local
var downloads = releasesToDownload.ToObservable()
.Select(x => fileSystem.CopyAsync(
Path.Combine(updateUrlOrPath, x.Filename),
Path.Combine(rootAppDirectory, "packages", x.Filename)))
.Merge(4)
.Publish();
downloads
.Scan(0.0, (acc, _) => acc + toIncrement)
.Select(x => (int)x)
.Subscribe(progress);
downloadResult = downloads.TakeLast(1);
downloads.Connect();
}
return(downloadResult.SelectMany(_ => checksumAllPackages(releasesToDownload)));
}
public IObservable <int> DownloadReleases(IEnumerable <ReleaseEntry> releasesToDownload)
{
var noLock = checkForLock <int>();
if (noLock != null)
{
return(noLock);
}
IObservable <int> downloadResult;
if (isHttpUrl(updateUrlOrPath))
{
var urls = releasesToDownload.Select(x => String.Format("{0}/{1}", updateUrlOrPath, x.Filename));
var paths = releasesToDownload.Select(x => Path.Combine(rootAppDirectory, "packages", x.Filename));
downloadResult = urlDownloader.QueueBackgroundDownloads(urls, paths);
}
else
{
var toIncrement = 100.0 / releasesToDownload.Count();
// Do a parallel copy from the remote directory to the local
downloadResult = releasesToDownload.ToObservable()
.Select(x => fileSystem.CopyAsync(
Path.Combine(updateUrlOrPath, x.Filename),
Path.Combine(rootAppDirectory, "packages", x.Filename)))
.Merge(4)
.Scan(0.0, (acc, _) => acc + toIncrement)
.Select(x => (int)x);
}
return(downloadResult
.Select(x => (int)(x * 0.95))
.Concat(checksumAllPackages(releasesToDownload).Select(_ => 100)));
}