Bloom.Book.BookStarter.CopyFolder C# (CSharp) Method

        private static void CopyFolder(string sourcePath, string destinationPath)
        {
            Directory.CreateDirectory(destinationPath);
            foreach (var filePath in Directory.GetFiles(sourcePath))
            {
                //better to not just copy the old thumbnail, as the on in the library may well need to look different
                if (Path.GetFileNameWithoutExtension(filePath).ToLowerInvariant() == "thumbnail")
                    continue;
                if (Path.GetFileNameWithoutExtension(filePath).StartsWith(".")) //.guidsForInstaller.xml
                    continue;
                var ext = Path.GetExtension(filePath).ToLowerInvariant();
                if (new String[] {".jade", ".less"}.Any(ex => ex == ext))
                    continue;
                RobustFile.Copy(filePath, Path.Combine(destinationPath, Path.GetFileName(filePath)));
            }
            foreach (var dirPath in Directory.GetDirectories(sourcePath))
            {
                //any files found under "template" will not be copied. At the moment (Aug 2015), this is only
                //thumbnail svgs, but we could move readme's and such in there
                if (Path.GetFileName(dirPath).ToLowerInvariant() != "template")
                {
                    CopyFolder(dirPath, Path.Combine(destinationPath, Path.GetFileName(dirPath)));
                }
            }
        }