AvalonPatch.AvalonPatch.copyDirectory C# (CSharp) Method

        void copyDirectory(string patchSource, string patchDestination)
        {
            String[] patchFiles;

            if (patchDestination[patchDestination.Length - 1] != Path.DirectorySeparatorChar)
                patchDestination += Path.DirectorySeparatorChar;

            if (!Directory.Exists(patchDestination))
                Directory.CreateDirectory(patchDestination);

            patchFiles = Directory.GetFileSystemEntries(patchSource);

            foreach (string Element in patchFiles)
            {
                if (Directory.Exists(Element))
                    copyDirectory(Element, patchDestination + Path.GetFileName(Element));
                else
                {
                    // If we are replacing an xml, check if the exiting files checksum matches (or it does not have one) and only then copy the file.
                    // we only want to do checksum compares on Avalon specific skin files
                    if (Path.GetExtension(Element).ToLower() == ".xml" && patchDestination.StartsWith(SkinInfo.mpPaths.AvalonPath))
                    {
                        string destFilename = Path.Combine(patchDestination, Path.GetFileName(Element));

                        // check if file exists and is a skin file
                        try
                        {
                            //if (checkSum.Compare(destFilename))
                                File.Copy(Element, destFilename, true);
                        }
                        catch (FileNotFoundException)
                        {
                            // most likely a new file, copy anyway
                            File.Copy(Element, destFilename, true);
                        }

                        // replace checksum so we can patch next time
                        //checkSum.Replace(destFilename);
                    }
                    else
                        File.Copy(Element, patchDestination + Path.GetFileName(Element), true);
                }
            }
        }