"""
This is an example .tac file which starts a webserver on port 8080 and
serves files from the current working directory.

The important part of this, the part that makes it a .tac file, is
the final root-level section, which sets up the object called 'application'
which twistd will look for
"""

import os
from twisted.application import service, internet
from twisted.web import static, server

def getWebService():
    """
    Return a service suitable for creating an application object.

    This service is a simple web server that serves files on port 8080 from
    underneath the current working directory.
    """
    # create a resource to serve static files
    fileServer = server.Site(static.File(os.getcwd()))
    return internet.TCPServer(8080, fileServer)

# this is the core part of any tac file, the creation of the root-level
# application object
application = service.Application("Demo application")

# attach the service to its parent application
service = getWebService()
service.setServiceParent(application)