Redirect deprecated snippets routes

Redirect unscoped snippet routes like:
* /group/project/snippets -> /group/project/-/snippets
* /snippets/1 -> /-/snippets/1

Changelog: removed
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

config/routes.rb

@@ -311,9 +311,13 @@ Rails.application.routes.draw do
 
   # Issue https://gitlab.com/gitlab-org/gitlab/-/issues/210024
   scope as: 'deprecated' do
-    draw :snippets
+    # Issue https://gitlab.com/gitlab-org/gitlab/-/issues/223719
+    get '/snippets/:id/raw',
+      to: 'snippets#raw',
+      format: false,
+      constraints: { id: /\d+/ }
 
-    Gitlab::Routing.redirect_legacy_paths(self, :profile)
+    Gitlab::Routing.redirect_legacy_paths(self, :profile, :snippets)
   end
 
   Gitlab.ee do

config/routes/project.rb

@@ -568,13 +568,13 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
         # Issue https://gitlab.com/gitlab-org/gitlab/issues/118849
         draw :repository
 
-        # Issue https://gitlab.com/gitlab-org/gitlab/-/issues/29572
-        resources :snippets, concerns: :awardable, constraints: { id: /\d+/ } do # rubocop: disable Cop/PutProjectRoutesUnderScope
-          member do
-            get :raw # rubocop:todo Cop/PutProjectRoutesUnderScope
-            post :mark_as_spam # rubocop:todo Cop/PutProjectRoutesUnderScope
-          end
-        end
+        # Issue https://gitlab.com/gitlab-org/gitlab/-/issues/223719
+        # rubocop: disable Cop/PutProjectRoutesUnderScope
+        get '/snippets/:id/raw',
+          to: 'snippets#raw',
+          format: false,
+          constraints: { id: /\d+/ }
+        # rubocop: enable Cop/PutProjectRoutesUnderScope
       end
 
       # All new routes should go under /-/ scope.
@@ -589,7 +589,7 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
                                             :tracing,
                                             :serverless, :clusters, :audit_events, :wikis, :merge_requests,
                                             :vulnerability_feedback, :security, :dependencies, :issues,
-                                            :pipelines, :pipeline_schedules)
+                                            :pipelines, :pipeline_schedules, :snippets)
     end
 
     # rubocop: disable Cop/PutProjectRoutesUnderScope

spec/lib/gitlab/path_regex_spec.rb

@@ -113,7 +113,7 @@ RSpec.describe Gitlab::PathRegex do
 
   let(:deprecated_routes) do
     # profile was deprecated in https://gitlab.com/gitlab-org/gitlab/-/merge_requests/51646
-    %w(profile)
+    %w(profile s)
   end
 
   let(:ee_top_level_words) do

spec/routing/project_routing_spec.rb

@@ -310,9 +310,11 @@ RSpec.describe 'project routing' do
       expect(get('/gitlab/gitlabhq/-/snippets/1')).to route_to('projects/snippets#show', namespace_id: 'gitlab', project_id: 'gitlabhq', id: '1')
     end
 
-    it 'to #show from unscope routing' do
-      expect(get('/gitlab/gitlabhq/snippets/1')).to route_to('projects/snippets#show', namespace_id: 'gitlab', project_id: 'gitlabhq', id: '1')
+    it 'to #raw from unscope routing' do
+      expect(get('/gitlab/gitlabhq/snippets/1/raw')).to route_to('projects/snippets#raw', namespace_id: 'gitlab', project_id: 'gitlabhq', id: '1')
     end
+
+    it_behaves_like 'redirecting a legacy path', '/gitlab/gitlabhq/snippets/1', '/gitlab/gitlabhq/-/snippets/1'
   end
 
   # test_project_hook POST   /:project_id/-/hooks/:id/test(.:format) hooks#test

spec/routing/routing_spec.rb

@@ -96,9 +96,11 @@ RSpec.describe SnippetsController, "routing" do
     expect(get("/-/snippets/1")).to route_to('snippets#show', id: '1')
   end
 
-  it 'to #show from unscoped routing' do
-    expect(get("/snippets/1")).to route_to('snippets#show', id: '1')
+  it 'to #raw from unscoped routing' do
+    expect(get("/snippets/1/raw")).to route_to('snippets#raw', id: '1')
   end
+
+  it_behaves_like 'redirecting a legacy path', '/snippets/1', '/-/snippets/1'
 end
 
 #            help GET /help(.:format)                 help#index