Add markdown action to ListsController and corresponding route

app/controllers/lists_controller.rb

@@ -23,4 +23,9 @@ def index
   def show
     @list = List.find(params[:id])
   end
+
+  def markdown
+    @lists = List.displayable.order(Arel.sql("(repository ->> 'stargazers_count')::text::integer").desc.nulls_last).all.select{|l| l.description.present? && !l.name.include?('?') }
+    render layout: false, content_type: 'text/plain'
+  end
 end

app/views/lists/markdown.text.erb

@@ -0,0 +1,8 @@
+# The Ultimate Awesome List [![Awesome](https://awesome.re/badge-flat.svg)](https://awesome.re)
+Every awesome list on every topic, including awesome lists of awesome lists.
+
+This is list was generated automatically from [awesome.ecosyste.ms](https://awesome.ecosyste.ms/), an open API service indexing awesome lists of open source software. It includes every awesome list with at least 30 items and a description, sorted by most stars first.
+
+<% @lists.each do |list| %>
+  <%= "- [#{list.name}](#{list.url}) - #{list.awesome_description}" %>
+<% end %>

config/routes.rb

@@ -33,7 +33,11 @@
     end
   end
 
-  resources :lists
+  resources :lists do
+    collection do
+      get :markdown, defaults: { format: :text }
+    end
+  end
 
   resources :exports, only: [:index], path: 'open-data'