Move builds badge implementation to new badges controller

app/controllers/projects/badges_controller.rb

+class Projects::BadgesController < Projects::ApplicationController
+  def build
+    respond_to do |format|
+      format.html { render_404 }
+      format.svg do
+        image = Ci::ImageForBuildService.new.execute(project, ref: params[:ref])
+        send_file(image.path, filename: image.name, disposition: 'inline', type: 'image/svg+xml')
+      end
+    end
+  end
+end

app/controllers/projects/builds_controller.rb

@@ -56,16 +56,6 @@ class Projects::BuildsController < Projects::ApplicationController
     render json: @build.to_json(only: [:status, :id, :sha, :coverage], methods: :sha)
   end
 
-  def badge
-    respond_to do |format|
-      format.html { render_404 }
-      format.svg do
-        image = Ci::ImageForBuildService.new.execute(project, ref: params[:ref])
-        send_file(image.path, filename: image.name, disposition: 'inline', type: 'image/svg+xml')
-      end
-    end
-  end
-
   private
 
   def build

config/routes.rb

@@ -611,8 +611,6 @@ Rails.application.routes.draw do
         resources :builds, only: [:index, :show], constraints: { id: /\d+/ } do
           collection do
             post :cancel_all
-            get :badge, path: 'status/*ref/badge',
-                        constraints: { ref: Gitlab::Regex.git_reference_regex, format: /svg/ }
           end
 
           member do
@@ -699,6 +697,12 @@ Rails.application.routes.draw do
         end
 
         resources :runner_projects, only: [:create, :destroy]
+        resources :badges, only: [], path: 'badges/*ref',
+                           constraints: { ref: Gitlab::Regex.git_reference_regex } do
+          collection do
+            get :build, constraints: { format: /svg/ }
+          end
+        end
       end
     end
   end

doc/ci/quick_start/README.md

@@ -189,7 +189,7 @@ GitLab, such as **Commits** and **Merge Requests**.
 You can access a builds badge image using following link:
 
 ```
-http://example.gitlab.com/namespace/project/builds/status/branch/badge.svg
+http://example.gitlab.com/namespace/project/badges/branch/build.svg
 ```
 
 ## Next steps

features/steps/project/builds/badge.rb

@@ -5,7 +5,7 @@ class Spinach::Features::ProjectBuildsBadge < Spinach::FeatureSteps
   include RepoHelpers
 
   step 'I display builds badge for a master branch' do
-    visit badge_namespace_project_builds_path(@project.namespace, @project, ref: :master, format: :svg)
+    visit build_namespace_project_badges_path(@project.namespace, @project, ref: :master, format: :svg)
   end
 
   step 'I should see a build success badge' do