text: import os
  
  from flask import Blueprint, Flask, render_template
  from .sitemap import sitemap_blueprint
  from flask_webpack import Webpack
  from filters import filters
  
  brigade = Blueprint('brigade', __name__)
  
  def detect_webpack_manifest_path(expected_path):
      path = os.path.abspath(expected_path)
      if os.path.exists(path):
          return path
      else:
          raise Exception("Webpack Build Missing -- Make sure webpack is running. " \
                  "Start it with `webpack --watch`")
  
  
  def create_app():
      app = Flask(__name__, static_folder='build/public/', static_url_path='/assets')
      app.config['SECRET_KEY'] = 'sekrit!'
      app.config['WEBPACK_MANIFEST_PATH'] = detect_webpack_manifest_path('./brigade/build/manifest.json')
  
      webpack = Webpack()
      webpack.init_app(app)
  
      if 'SERVER_NAME' in os.environ:
          app.config['SERVER_NAME'] = os.environ['SERVER_NAME']
      if 'SITEMAP_URL_SCHEME' in os.environ:
          app.config['SITEMAP_URL_SCHEME'] = os.environ['SITEMAP_URL_SCHEME']
      app.config['SITEMAP_INCLUDE_RULES_WITHOUT_PARAMS'] = True
  
      app.register_blueprint(brigade)
      app.register_blueprint(filters)
      app.register_blueprint(sitemap_blueprint)
  
      @app.errorhandler(404)
      def page_not_found(e):
          return render_template('404.html'), 404
  
      return app
  
  
  from . import views # noqa:E402
  