Added support for specifying extra apps via external configuration (#230)

ECOM-5173

course_discovery/settings/base.py

@@ -21,16 +21,16 @@ ALLOWED_HOSTS = []
 
 # Application definition
 
-INSTALLED_APPS = (
+INSTALLED_APPS = [
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles'
-)
+]
 
-THIRD_PARTY_APPS = (
+THIRD_PARTY_APPS = [
     'release_util',
     'rest_framework',
     'rest_framework_swagger',
@@ -42,9 +42,9 @@ THIRD_PARTY_APPS = (
     'dry_rest_permissions',
     'compressor',
     'django_filters',
-)
+]
 
-PROJECT_APPS = (
+PROJECT_APPS = [
     'course_discovery.apps.core',
     'course_discovery.apps.ietf_language_tags',
     'course_discovery.apps.api',
@@ -52,14 +52,14 @@ PROJECT_APPS = (
     'course_discovery.apps.course_metadata',
     'course_discovery.apps.edx_haystack_extensions',
     'course_discovery.apps.publisher',
-)
+]
 
 
 INSTALLED_APPS += THIRD_PARTY_APPS
 INSTALLED_APPS += PROJECT_APPS
 
 # NOTE: Haystack must be installed after core so that we can override Haystack's management commands with our own.
-INSTALLED_APPS += ('haystack',)
+INSTALLED_APPS += ['haystack']
 
 MIDDLEWARE_CLASSES = (
     'django.contrib.sessions.middleware.SessionMiddleware',

course_discovery/settings/devstack.py

@@ -10,9 +10,9 @@ LOGGING['handlers']['local'] = {
 # TOOLBAR CONFIGURATION
 # See: http://django-debug-toolbar.readthedocs.org/en/latest/installation.html
 if os.environ.get('ENABLE_DJANGO_TOOLBAR', False):
-    INSTALLED_APPS += (
+    INSTALLED_APPS += [
         'debug_toolbar',
-    )
+    ]
 
     MIDDLEWARE_CLASSES += (
         'debug_toolbar.middleware.DebugToolbarMiddleware',

course_discovery/settings/local.py

@@ -33,9 +33,9 @@ EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
 # TOOLBAR CONFIGURATION
 # See: http://django-debug-toolbar.readthedocs.org/en/latest/installation.html
 if os.environ.get('ENABLE_DJANGO_TOOLBAR', False):
-    INSTALLED_APPS += (
+    INSTALLED_APPS += [
         'debug_toolbar',
-    )
+    ]
 
     MIDDLEWARE_CLASSES += (
         'debug_toolbar.middleware.DebugToolbarMiddleware',

course_discovery/settings/production.py

@@ -33,6 +33,9 @@ with open(CONFIG_FILE) as f:
 
     vars().update(config_from_yaml)
 
+if 'EXTRA_APPS' in locals():
+    INSTALLED_APPS += EXTRA_APPS
+
 DB_OVERRIDES = dict(
     PASSWORD=environ.get('DB_MIGRATION_PASS', DATABASES['default']['PASSWORD']),
     ENGINE=environ.get('DB_MIGRATION_ENGINE', DATABASES['default']['ENGINE']),

course_discovery/settings/test.py

 from course_discovery.settings.base import *
 
 # TEST SETTINGS
-INSTALLED_APPS += (
+INSTALLED_APPS += [
     'django_nose',
     'course_discovery.apps.edx_catalog_extensions',
-)
+]
 
 TEST_RUNNER = 'django_nose.NoseTestSuiteRunner'