Add support for Heroku CI

Pipfile

@@ -7,7 +7,7 @@ name = "pypi"
 dj-database-url = "*"
 django = "==2.2.13"
 django-grappelli = "*"
-elasticsearch = "*"
+elasticsearch = "==7.9.1"
 gunicorn = "*"
 newrelic = "*"
 pyuploadcare = "*"

app.json

@@ -30,6 +30,22 @@
     "rollbar:free"
   ],
   "scripts": {
+    "test": "sh -c 'python manage.py collectstatic && python manage.py test pylinks'",
+    "test-setup": "sh -c 'pip install whoosh && python manage.py migrate && python manage.py collectstatic --noinput'",
     "postdeploy": "sh -c 'python manage.py migrate --noinput; python manage.py collectstatic --noinput'"
+  },
+  "environments": {
+    "test": {
+      "env": {
+        "DJANGO_DEBUG": 1,
+        "UPLOADCARE_DISABLED": 1,
+        "ROLLBAR_DISABLED": 1,
+        "DJANGO_SECRET_KEY": "foo",
+        "HOSTNAMES": "localhost"
+      },
+      "addons": [
+        "heroku-postgresql:in-dyno"
+      ]
+    }
   }
 }

pylinks/settings.py

@@ -25,6 +25,13 @@
 }
 HAYSTACK_SIGNAL_PROCESSOR = 'haystack.signals.RealtimeSignalProcessor'
 
+# Use Whoosh on Heroku
+if 'HEROKU_TEST_RUN_ID' in os.environ:
+    HAYSTACK_CONNECTIONS['default'] = {
+        'ENGINE': 'haystack.backends.whoosh_backend.WhooshEngine',
+        'PATH': os.path.join(os.path.dirname(__file__), 'whoosh_index'),
+    }
+
 # Password validation
 # https://docs.djangoproject.com/en/1.10/ref/settings/#auth-password-validators