NuGet.LocalPackageRepository.AddPackage C# (CSharp) Method

        public override void AddPackage(IPackage package)
        {
            string packageFilePath = GetPackageFilePath(package);

            FileSystem.AddFileWithCheck(packageFilePath, package.GetStream);
        }

        void DownloadPackage(IPackage package, string fullPathToDownloadTo, NuGet.PackageDownloader directDownloader)
        {
            Log.VerboseFormat("Found package {0} version {1}", package.Id, package.Version);
            Log.Verbose("Downloading to: " + fullPathToDownloadTo);

            var dsp = package as DataServicePackage;
            if (dsp != null && directDownloader != null)
            {
                Log.Verbose("A direct download is possible; bypassing the NuGet machine cache");
                using (var targetFile = new FileStream(fullPathToDownloadTo, FileMode.CreateNew))
                    directDownloader.DownloadPackage(dsp.DownloadUrl, dsp, targetFile);
                return;
            }

            var physical = new PhysicalFileSystem(Path.GetDirectoryName(fullPathToDownloadTo));
            var local = new LocalPackageRepository(new FixedFilePathResolver(package.Id, fullPathToDownloadTo), physical);
            local.AddPackage(package);
        }