copy_directory_recursive.cs

// From: http://stackoverflow.com/questions/627504/what-is-the-best-way-to-recursively-copy-contents-in-c

public static void CopyDirectory(DirectoryInfo source, DirectoryInfo target, bool overwrite = true,
    bool recurse = false, bool throwOnError = true)
{
    try
    {
        //check if the target directory exists
        if (Directory.Exists(target.FullName) == false)
        {
            Directory.CreateDirectory(target.FullName);
        }

        //copy all the files into the new directory

        foreach (FileInfo fi in source.GetFiles())
        {
            fi.CopyTo(Path.Combine(target.ToString(), fi.Name), overwrite);
        }

        //copy all the sub directories using recursion
        if (!recurse)
            return;

        foreach (var diSourceDir in source.GetDirectories())
        {
            var nextTargetDir = target.CreateSubdirectory(diSourceDir.Name);
            CopyDirectory(diSourceDir, nextTargetDir, overwrite, true);
        }
    }
    catch (IOException ex)
    {
        if (throwOnError)
            throw;
    }
}