Use project ID in repository cache to prevent stale data from persisting across projects

We have a number of bugs caused by cache keys not being flushed
properly during deletion of a project. Add the project ID to ensure
this never happens.

Closes #20027

1 files changed, 4 insertions, 3 deletions

diff --git a/lib/repository_cache.rb b/lib/repository_cache.rb
index 8ddc3511293..068a95790c0 100644
--- a/lib/repository_cache.rb
+++ b/lib/repository_cache.rb
@@ -1,14 +1,15 @@
 # Interface to the Redis-backed cache store used by the Repository model
 class RepositoryCache
-  attr_reader :namespace, :backend
+  attr_reader :namespace, :backend, :project_id
 
-  def initialize(namespace, backend = Rails.cache)
+  def initialize(namespace, project_id, backend = Rails.cache)
     @namespace = namespace
     @backend = backend
+    @project_id = project_id
   end
 
   def cache_key(type)
-    "#{type}:#{namespace}"
+    "#{type}:#{namespace}:#{project_id}"
   end
 
   def expire(key)