app.py

import os, sys, ujson
from flask import Flask, render_template, url_for

# Check command line to see if in production
if len(sys.argv) >= 2 and sys.argv[1] == 'prod':
  # In production
  app = Flask(__name__, static_url_path='/mtg-cube/static')
else:
  app = Flask(__name__)
  app.debug = True

@app.route('/mtg-cube')
def app_main():
  fin = open('data/generated/cube_map.json', 'r')
  cube_map_raw = fin.readline()
  fin.close()

  return render_template('app.html',
      # Let's do this the ghetto way to save a json encode/decode
      JS_VARS_FROM_SERVER_JSON=('{cube_map:%s}' % cube_map_raw))

@app.template_filter('url_for_asset')
def url_for_asset_filter(filename):
  return dated_url_for('static', filename=('assets/%s' % filename))

# Next two fns are for cache busting: http://flask.pocoo.org/snippets/40/
@app.context_processor
def override_url_for():
  return dict(url_for=dated_url_for)

def dated_url_for(endpoint, **values):
  if endpoint == 'static':
    filename = values.get('filename', None)
    if filename:
      file_path = os.path.join(app.root_path, endpoint, filename)
      values['q'] = int(os.stat(file_path).st_mtime)
  return url_for(endpoint, **values)

if __name__ == '__main__':
  app.run()