Merge branch 'refactor_namespace_all_projects' into 'master'

Add recursive approach for Namespace#all_projects

See merge request gitlab-org/gitlab!44740

app/models/namespace.rb

@@ -283,8 +283,12 @@ class Namespace < ApplicationRecord
   # Includes projects from this namespace and projects from all subgroups
   # that belongs to this namespace
   def all_projects
+    if Feature.enabled?(:recursive_approach_for_all_projects)
+      Project.where(namespace: self_and_descendants)
+    else
       Project.inside_path(full_path)
     end
+  end
 
   # Includes pipelines from this namespace and pipelines from all subgroups
   # that belongs to this namespace

config/feature_flags/development/recursive_approach_for_all_projects.yml

+---
+name: recursive_approach_for_all_projects
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/44740
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/263442
+type: development
+group: group::fulfillment
+default_enabled: false

ee/spec/services/update_build_minutes_service_spec.rb

@@ -46,11 +46,11 @@ RSpec.describe UpdateBuildMinutesService do
         end
       end
 
-      context 'when namespace is subgroup' do
+      context 'when group is subgroup' do
         let(:root_ancestor) { create(:group, shared_runners_minutes_limit: 100) }
-        let(:namespace) { create(:namespace, parent: root_ancestor) }
+        let(:namespace) { create(:group, parent: root_ancestor) }
 
-        it 'creates a statistics in root namespace' do
+        it 'creates a statistics in root group' do
           subject
 
           expect(root_ancestor.namespace_statistics.reload.shared_runners_seconds)

spec/models/namespace_spec.rb

@@ -855,15 +855,51 @@ RSpec.describe Namespace do
   end
 
   describe '#all_projects' do
-    let(:group) { create(:group) }
-    let(:child) { create(:group, parent: group) }
-    let!(:project1) { create(:project_empty_repo, namespace: group) }
+    shared_examples 'all projects for a namespace' do
+      let(:namespace) { create(:namespace) }
+      let(:child) { create(:group, parent: namespace) }
+      let!(:project1) { create(:project_empty_repo, namespace: namespace) }
       let!(:project2) { create(:project_empty_repo, namespace: child) }
 
-    it { expect(group.all_projects.to_a).to match_array([project2, project1]) }
+      it { expect(namespace.all_projects.to_a).to match_array([project2, project1]) }
       it { expect(child.all_projects.to_a).to match_array([project2]) }
     end
 
+    shared_examples 'all project examples' do
+      include_examples 'all projects for a namespace'
+
+      context 'when namespace is a group' do
+        let_it_be(:namespace) { create(:group) }
+
+        include_examples 'all projects for a namespace'
+      end
+
+      context 'when namespace is a user namespace' do
+        let_it_be(:user) { create(:user) }
+        let_it_be(:user_namespace) { create(:namespace, owner: user) }
+        let_it_be(:project) { create(:project, namespace: user_namespace) }
+
+        it { expect(user_namespace.all_projects.to_a).to match_array([project]) }
+      end
+    end
+
+    context 'with recursive approach' do
+      before do
+        stub_feature_flags(recursive_approach_for_all_projects: true)
+      end
+
+      include_examples 'all project examples'
+    end
+
+    context 'with route path wildcard approach' do
+      before do
+        stub_feature_flags(recursive_approach_for_all_projects: false)
+      end
+
+      include_examples 'all project examples'
+    end
+  end
+
   describe '#all_pipelines' do
     let(:group) { create(:group) }
     let(:child) { create(:group, parent: group) }