IObservable <UpdateInfo> determineUpdateInfo(IEnumerable <ReleaseEntry> localReleases, IEnumerable <ReleaseEntry> remoteReleases, bool ignoreDeltaUpdates)
{
localReleases = localReleases ?? Enumerable.Empty <ReleaseEntry>();
if (remoteReleases == null)
{
log.Warn("Release information couldn't be determined due to remote corrupt RELEASES file");
return(Observable.Throw <UpdateInfo>(new Exception("Corrupt remote RELEASES file")));
}
if (localReleases.Count() == remoteReleases.Count())
{
log.Info("No updates, remote and local are the same");
return(Observable.Return <UpdateInfo>(null));
}
if (ignoreDeltaUpdates)
{
remoteReleases = remoteReleases.Where(x => !x.IsDelta);
}
if (!localReleases.Any())
{
log.Warn("First run or local directory is corrupt, starting from scratch");
var latestFullRelease = findCurrentVersion(remoteReleases);
return(Observable.Return(UpdateInfo.Create(findCurrentVersion(localReleases), new[] { latestFullRelease }, PackageDirectory, appFrameworkVersion)));
}
if (localReleases.Max(x => x.Version) > remoteReleases.Max(x => x.Version))
{
log.Warn("hwhat, local version is greater than remote version");
var latestFullRelease = findCurrentVersion(remoteReleases);
return(Observable.Return(UpdateInfo.Create(findCurrentVersion(localReleases), new[] { latestFullRelease }, PackageDirectory, appFrameworkVersion)));
}
return(Observable.Return(UpdateInfo.Create(findCurrentVersion(localReleases), remoteReleases, PackageDirectory, appFrameworkVersion)));
}
