Utilities for using XStatic in Tornado applications

XStatic is a means of packaging static files, especially JS libraries, for Python applications. Tornado is a Python web framework.

This integration provides:

• XStaticFileHandler to serve static files from XStatic packages.
• xstatic_url ui method to build URLs for XStatic files, including the ?v=... tag that Tornado uses for cache invalidation.

To use these:

import tornado.ioloop
import tornado.web
from tornado_xstatic import XStaticFileHandler, xstatic_url

class MyHandler(tornado.web.RequestHandler):
    def get(self):
        self.render("mytemplate.html")


if __name__ == "__main__":
    application = tornado.web.Application(
        [
            (r"/", MyHandler),
            (r"/xstatic/(.*)", XStaticFileHandler,
                {"allowed_modules": ["jquery", "bootstrap"]}),
        ],
        ui_methods={'xstatic_url': xstatic_url('/xstatic/')}
    )
    application.listen(8888)
    tornado.ioloop.IOLoop.instance().start()

Passing allowed_modules is optional: if it is not provided, files from any XStatic module may be served.

In your template, you can then do this:

<script src="{{ xstatic_url('jquery', 'jquery.min.js') }}"></script>
<script src="{{ xstatic_url('bootstrap', 'js/bootstrap.min.js') }}"></script>

<link href="{{ xstatic_url('bootstrap', 'css/bootstrap.min.css') }}" rel="stylesheet">