New in Cookiecutter 1.1
To avoid rendering directories and files of a cookiecutter, the _copy_without_render key can be used in the cookiecutter.json. The value of this key accepts a list of Unix shell-style wildcards:
{ "project_slug": "sample", "_copy_without_render": [ "*.html", "*not_rendered_dir", "rendered_dir/not_rendered_file.ini" ] }