Bari.Core.Commands.SelfUpdateCommand.PrepareUpdate C# (CSharp) Method

        private IPreparedUpdate PrepareUpdate(AppUpdater updater, IExtendedFileSystem fileSystem, IPackage package)
        {
            if (package == null)
                throw new ArgumentNullException("package");

            if (package.Version < updater.CurrentVersion)
                throw new BackwardUpdateException(updater.CurrentVersion, package.Version);

            var prepDirectory = Path.Combine(fileSystem.AppDirectory, ".updates", package.Version.ToString());
            var preparedFiles = new List<string>();

            foreach (var packageFile in package.GetFiles("tools"))
            {
                var targetPath = Path.Combine(prepDirectory, Get(packageFile.Path, relativeTo: "app"));
                fileSystem.AddFile(targetPath, packageFile.GetStream());

                preparedFiles.Add(targetPath);
            }

            return new PreparedUpdate(package.Version, preparedFiles);
        }