Add notes internal route

Fix breaking test case

Author: deepakmahakale

railties/lib/rails/application/finisher.rb

@@ -142,6 +142,7 @@ def self.complete(_state)
           app.routes.prepend do
             get "/rails/info/properties" => "rails/info#properties", internal: true
             get "/rails/info/routes"     => "rails/info#routes",     internal: true
+            get "/rails/info/notes"      => "rails/info#notes",      internal: true
             get "/rails/info"            => "rails/info#index",      internal: true
           end
 

railties/lib/rails/info_controller.rb

@@ -32,6 +32,14 @@ def routes
     end
   end
 
+  def notes
+    @annotations = Rails::SourceAnnotationExtractor.new(
+      Rails::SourceAnnotationExtractor::Annotation.tags.join("|")
+    ).find(
+      Rails::SourceAnnotationExtractor::Annotation.directories
+    )
+  end
+
   private
     def matching_routes(query:, exact_match:)
       return [] if query.blank?

railties/lib/rails/templates/rails/info/notes.html.erb

@@ -0,0 +1,65 @@
+<style>
+  h2, p {
+    padding-left: 30px;
+  }
+  table {
+    margin: 0;
+    border-collapse: collapse;
+    word-wrap:break-word;
+    table-layout: fixed;
+    width:100%;
+  }
+  table thead tr {
+    border-bottom: 2px solid #ddd;
+  }
+  table th {
+    padding-left: 30px;
+    text-align: left;
+  }
+  table thead th.tag, table thead th.line-no {
+    width: 10%;
+  }
+  table tbody tr {
+    border-bottom: 1px solid #ddd;
+  }
+  table tbody tr:nth-child(odd) {
+    background: #f2f2f2;
+  }
+  table td {
+    padding: 4px 30px;
+  }
+  @media (prefers-color-scheme: dark) {
+    table tbody tr:nth-child(odd) {
+      background: #282828;
+    }
+  }
+</style>
+
+<h2>
+  Notes
+</h2>
+
+<table id="route_table" class="table">
+  <thead>
+    <th>File Name</th>
+    <th class="line-no">Line No.</th>
+    <th class="tag">Tag</th>
+    <th>Description</th>
+  </thead>
+  <tbody>
+    <% @annotations.each do |file, annotations| %>
+      <% annotations.each.with_index do |annotation, index| %>
+        <tr>
+          <% if index == 0 %>
+            <th rowspan="<%= annotations.size %>">
+              <%= file %>
+            </th>
+          <% end %>
+          <td class="line-no"><%= annotation.line %></td>
+          <td class="tag"><%= annotation.tag %></td>
+          <td><%= annotation.text %></td>
+        </tr>
+      <% end %>
+    <% end %>
+  </tbody>
+</table>

railties/test/rails_info_controller_test.rb

@@ -19,6 +19,7 @@ def setup
       end
       get "/rails/info/properties" => "rails/info#properties"
       get "/rails/info/routes" => "rails/info#routes"
+      get "/rails/info/notes" => "rails/info#notes"
       post "/rails/:test/properties" => "rails/info#properties"
       put "/rails/:test/named_properties" => "rails/info#properties", as: "named_rails_info_properties"
     end
@@ -118,10 +119,11 @@ def fuzzy_results
     assert exact_results.size == 0, "should not case-insensitive match HTTP Verb methods"
 
     get :routes, params: { query: "GET" }
-    assert exact_results.size == 3, "should match complete HTTP Verb methods"
+    assert exact_results.size == 4, "should match complete HTTP Verb methods"
     assert exact_results.include? "/test/nested_route(.:format)"
     assert exact_results.include? "/rails/info/properties(.:format)"
     assert exact_results.include? "/rails/info/routes(.:format)"
+    assert exact_results.include? "/rails/info/notes(.:format)"
   end
 
   test "info controller search returns exact matches for route Controller#Action(s)" do
@@ -140,9 +142,10 @@ def fuzzy_results
     assert exact_results.size == 0, "should not match unnamed routes"
 
     get :routes, params: { query: "rails_info" }
-    assert fuzzy_results.size == 3, "should match incomplete route names"
+    assert fuzzy_results.size == 4, "should match incomplete route names"
     assert fuzzy_results.include? "/rails/info/properties(.:format)"
     assert fuzzy_results.include? "/rails/info/routes(.:format)"
+    assert fuzzy_results.include? "/rails/info/notes(.:format)"
     assert fuzzy_results.include? "/rails/:test/named_properties(.:format)"
 
     get :routes, params: { query: "/rails/info/routes" }