Enable writing set cache keys in new format

- Keep expiry in old format too

lib/gitlab/reactive_cache_set_cache.rb

@@ -10,11 +10,12 @@ module Gitlab
       @expires_in = expires_in
     end
 
-    def cache_key(key)
+    # NOTE Remove as part of #331319
+    def old_cache_key(key)
       "#{cache_namespace}:#{key}:set"
     end
 
-    def new_cache_key(key)
+    def cache_key(key)
       super(key)
     end
 

lib/gitlab/repository_set_cache.rb

@@ -13,12 +13,12 @@ module Gitlab
       @expires_in = expires_in
     end
 
-    def cache_key(type)
+    # NOTE Remove as part of #331319
+    def old_cache_key(type)
       "#{type}:#{namespace}:set"
     end
 
-    # NOTE Remove as part of #331319
-    def new_cache_key(type)
+    def cache_key(type)
       super("#{type}:#{namespace}")
     end
 

lib/gitlab/set_cache.rb

@@ -10,12 +10,12 @@ module Gitlab
       @expires_in = expires_in
     end
 
-    def cache_key(key)
+    # NOTE Remove as part of https://gitlab.com/gitlab-org/gitlab/-/issues/331319
+    def old_cache_key(key)
       "#{key}:set"
     end
 
-    # NOTE Remove as part of https://gitlab.com/gitlab-org/gitlab/-/issues/331319
-    def new_cache_key(key)
+    def cache_key(key)
       "#{cache_namespace}:#{key}:set"
     end
 
@@ -25,7 +25,7 @@ module Gitlab
 
       with do |redis|
         keys_to_expire = keys.map { |key| cache_key(key) }
-        keys_to_expire += keys.map { |key| new_cache_key(key) } # NOTE Remove as part of #331319
+        keys_to_expire += keys.map { |key| old_cache_key(key) } # NOTE Remove as part of #331319
 
         Gitlab::Instrumentation::RedisClusterValidator.allow_cross_slot_commands do
           redis.unlink(*keys_to_expire)

spec/lib/gitlab/repository_set_cache_spec.rb

@@ -15,7 +15,7 @@ RSpec.describe Gitlab::RepositorySetCache, :clean_gitlab_redis_cache do
 
     shared_examples 'cache_key examples' do
       it 'includes the namespace' do
-        is_expected.to eq("foo:#{namespace}:set")
+        is_expected.to eq("#{gitlab_cache_namespace}:foo:#{namespace}:set")
       end
 
       context 'with a given namespace' do
@@ -23,7 +23,7 @@ RSpec.describe Gitlab::RepositorySetCache, :clean_gitlab_redis_cache do
         let(:cache) { described_class.new(repository, extra_namespace: extra_namespace) }
 
         it 'includes the full namespace' do
-          is_expected.to eq("foo:#{namespace}:#{extra_namespace}:set")
+          is_expected.to eq("#{gitlab_cache_namespace}:foo:#{namespace}:#{extra_namespace}:set")
         end
       end
     end
@@ -60,7 +60,7 @@ RSpec.describe Gitlab::RepositorySetCache, :clean_gitlab_redis_cache do
       write_cache
 
       redis_keys = Gitlab::Redis::Cache.with { |redis| redis.scan(0, match: "*") }.last
-      expect(redis_keys).to include("branch_names:#{namespace}:set")
+      expect(redis_keys).to include("#{gitlab_cache_namespace}:branch_names:#{namespace}:set")
       expect(cache.fetch('branch_names')).to contain_exactly('main')
     end
 
@@ -95,8 +95,8 @@ RSpec.describe Gitlab::RepositorySetCache, :clean_gitlab_redis_cache do
         expect(cache.read(:foo)).to be_empty
       end
 
-      it 'expires the new key format' do
-        expect_any_instance_of(Redis).to receive(:unlink).with(cache.cache_key(:foo), cache.new_cache_key(:foo)) # rubocop:disable RSpec/AnyInstanceOf
+      it 'expires the old key format' do
+        expect_any_instance_of(Redis).to receive(:unlink).with(cache.cache_key(:foo), cache.old_cache_key(:foo)) # rubocop:disable RSpec/AnyInstanceOf
 
         subject
       end

spec/tasks/cache/clear/redis_spec.rb

@@ -36,8 +36,6 @@ RSpec.describe 'clearing redis cache', :clean_gitlab_redis_cache, :silence_stdou
       let(:cache) { Gitlab::RepositorySetCache.new(repository) }
 
       before do
-        pending "Enable as part of https://gitlab.com/gitlab-org/gitlab/-/issues/331319"
-
         cache.write(:foo, [:bar])
       end