Filebased footer file cache

Author: tapaswenipathak

readthedocs/api/v2/views/footer_views.py

@@ -17,7 +17,9 @@
     highest_version,
     parse_version_failsafe,
 )
-
+from django.core.cache import get_cache, cache
+footer_cache = get_cache('footer')
+default_cache = get_cache('default')
 
 def get_version_compare_data(project, base_version=None):
     """

readthedocs/settings/base.py

@@ -267,6 +267,10 @@ def USE_PROMOS(self):  # noqa
         'default': {
             'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
             'PREFIX': 'docs',
+        },
+        'footer': {
+            'BACKEND': 'django.core.cache.backends.filebased.FileBasedCache',
+            'LOCATION': os.path.join(SITE_ROOT, 'readthedocs', 'api/v2/templates/restapi/footer.html' )
         }
     }
     CACHE_MIDDLEWARE_SECONDS = 60