Added Heroku and Gulp support

* Deleted some unnecessary info inside asgi.py

{{cookiecutter.project_slug}}/Procfile

@@ -1,5 +1,9 @@
 release: python manage.py migrate
+{% if cookiecutter.use_async == "y" -%}
+web: gunicorn config.asgi:application -k uvicorn.workers.UvicornWorker
+{%- else  %}
 web: gunicorn config.wsgi:application
+{%- endif %}
 {% if cookiecutter.use_celery == "y" -%}
 worker: celery worker --app=config.celery_app --loglevel=info
 beat: celery beat --app=config.celery_app --loglevel=info

{{cookiecutter.project_slug}}/config/asgi.py

@@ -7,7 +7,6 @@ For more information on this file, see
 https://docs.djangoproject.com/en/dev/howto/deployment/asgi/
 
 """
-import os
 import sys
 from pathlib import Path
 
@@ -17,22 +16,15 @@ from django.core.asgi import get_asgi_application
 # {{ cookiecutter.project_slug }} directory.
 app_path = Path(__file__).parents[1].resolve()
 sys.path.append(str(app_path / "{{ cookiecutter.project_slug }}"))
-# We defer to a DJANGO_SETTINGS_MODULE already in the environment. This breaks
-# if running multiple sites in the same mod_wsgi process. To fix this, use
-# mod_wsgi daemon mode with each site in its own daemon process, or use
-# os.environ["DJANGO_SETTINGS_MODULE"] = "config.settings.production"
-os.environ.setdefault("DJANGO_SETTINGS_MODULE", "config.settings.production")
 
-# This application object is used by any ASGI server configured to use this
-# file. This includes Django's development server, if the ASGI_APPLICATION
-# setting points here.
+# This application object is used by any ASGI server configured to use this file.
 django_application = get_asgi_application()
 # Apply ASGI middleware here.
 # from helloworld.asgi import HelloWorldApplication
 # application = HelloWorldApplication(application)
 
 # Import websocket application here, so apps from django_application are loaded first
-from .websocket import websocket_application  # noqa isort:skip
+from config.websocket import websocket_application  # noqa isort:skip
 
 
 async def application(scope, receive, send):

{{cookiecutter.project_slug}}/gulpfile.js

@@ -110,6 +110,18 @@ function imgCompression() {
     .pipe(dest(paths.images))
 }
 
+{% if cookiecutter.use_async == 'y' -%}
+// Run django server
+function asyncRunServer(cb) {
+  var cmd = spawn('gunicorn', [
+      'config.asgi', '-k', 'uvicorn.workers.UvicornWorker', '--reload'
+      ], {stdio: 'inherit'}
+  )
+  cmd.on('close', function(code) {
+    console.log('gunicorn exited with code ' + code)
+  })
+}
+{%- else %}
 // Run django server
 function runServer(cb) {
   var cmd = spawn('python', ['manage.py', 'runserver'], {stdio: 'inherit'})
@@ -118,6 +130,7 @@ function runServer(cb) {
     cb(code)
   })
 }
+{%- endif %}
 
 // Browser sync server for live reload
 function initBrowserSync() {
@@ -166,8 +179,12 @@ const generateAssets = parallel(
 // Set up dev environment
 const dev = parallel(
   {%- if cookiecutter.use_docker == 'n' %}
+  {%- if cookiecutter.use_async == 'y' %}
+  asyncRunServer,
+  {%- else %}
   runServer,
   {%- endif %}
+  {%- endif %}
   initBrowserSync,
   watchPaths
 )