initial import for Open Source 🎉

data/cache/cache_key.py

@@ -0,0 +1,27 @@
+from collections import namedtuple
+
+class CacheKey(namedtuple('CacheKey', ['key', 'expiration'])):
+  """ Defines a key into the data model cache. """
+  pass
+
+
+def for_repository_blob(namespace_name, repo_name, digest, version):
+  """ Returns a cache key for a blob in a repository. """
+  return CacheKey('repo_blob__%s_%s_%s_%s' % (namespace_name, repo_name, digest, version), '60s')
+
+
+def for_catalog_page(auth_context_key, start_id, limit):
+  """ Returns a cache key for a single page of a catalog lookup for an authed context. """
+  params = (auth_context_key or '(anon)', start_id or 0, limit or 0)
+  return CacheKey('catalog_page__%s_%s_%s' % params, '60s')
+
+
+def for_namespace_geo_restrictions(namespace_name):
+  """ Returns a cache key for the geo restrictions for a namespace. """
+  return CacheKey('geo_restrictions__%s' % (namespace_name), '240s')
+
+
+def for_active_repo_tags(repository_id, start_pagination_id, limit):
+  """ Returns a cache key for the active tags in a repository. """
+  return CacheKey('repo_active_tags__%s_%s_%s' % (repository_id, start_pagination_id, limit),
+                  '120s')