Redirect deprecated pipeline routes

Redirect unscoped pipeline routes like group/project/pipelines to the
scoped one like group/project/-/pipelines
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

changelogs/unreleased/dz-redirect-deprecated-pipeline-routes.yml

+---
+title: Redirect deprecated pipeline routes
+merge_request: 53990
+author:
+type: removed

config/routes/project.rb

@@ -553,7 +553,6 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
       # Deprecated unscoped routing.
       scope as: 'deprecated' do
         # Issue https://gitlab.com/gitlab-org/gitlab/issues/118849
-        draw :pipelines
         draw :repository
 
         # Issue https://gitlab.com/gitlab-org/gitlab/-/issues/29572
@@ -576,7 +575,8 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
                                             :environments, :protected_environments, :error_tracking, :alert_management,
                                             :tracing,
                                             :serverless, :clusters, :audit_events, :wikis, :merge_requests,
-                                            :vulnerability_feedback, :security, :dependencies, :issues)
+                                            :vulnerability_feedback, :security, :dependencies, :issues,
+                                            :pipelines, :pipeline_schedules)
     end
 
     # rubocop: disable Cop/PutProjectRoutesUnderScope

ee/spec/routing/project_routing_spec.rb

@@ -37,7 +37,7 @@ RSpec.describe 'EE-specific project routing' do
   # security_namespace_project_pipeline GET /:project_id/pipelines/:id/security(.:format)
   describe Projects::PipelinesController, 'routing' do
     it 'to #security' do
-      expect(get('/gitlab/gitlabhq/pipelines/12/security')).to route_to('projects/pipelines#security', namespace_id: 'gitlab', project_id: 'gitlabhq', id: '12')
+      expect(get('/gitlab/gitlabhq/-/pipelines/12/security')).to route_to('projects/pipelines#security', namespace_id: 'gitlab', project_id: 'gitlabhq', id: '12')
     end
   end
 

spec/routing/project_routing_spec.rb

@@ -700,6 +700,26 @@ RSpec.describe 'project routing' do
     end
   end
 
+  describe Projects::PipelinesController, 'routing' do
+    it 'to #index' do
+      expect(get('/gitlab/gitlabhq/-/pipelines')).to route_to('projects/pipelines#index', namespace_id: 'gitlab', project_id: 'gitlabhq')
+    end
+
+    it 'to #show' do
+      expect(get('/gitlab/gitlabhq/-/pipelines/12')).to route_to('projects/pipelines#show', namespace_id: 'gitlab', project_id: 'gitlabhq', id: '12')
+    end
+
+    it_behaves_like 'redirecting a legacy path', '/gitlab/gitlabhq/pipelines', '/gitlab/gitlabhq/-/pipelines'
+  end
+
+  describe Projects::PipelineSchedulesController, 'routing' do
+    it 'to #index' do
+      expect(get('/gitlab/gitlabhq/-/pipeline_schedules')).to route_to('projects/pipeline_schedules#index', namespace_id: 'gitlab', project_id: 'gitlabhq')
+    end
+
+    it_behaves_like 'redirecting a legacy path', '/gitlab/gitlabhq/pipeline_schedules', '/gitlab/gitlabhq/-/pipeline_schedules'
+  end
+
   describe Projects::Settings::OperationsController, 'routing' do
     it 'to #reset_alerting_token' do
       expect(post('/gitlab/gitlabhq/-/settings/operations/reset_alerting_token')).to route_to('projects/settings/operations#reset_alerting_token', namespace_id: 'gitlab', project_id: 'gitlabhq')