Add CI status badge implementation to commit controller

app/controllers/projects/commit_controller.rb

@@ -57,6 +57,12 @@ class Projects::CommitController < Projects::ApplicationController
     render layout: false
   end
 
+  def status
+    status_sha = ci_commit.sha if ci_commit
+    image = Ci::ImageForBuildService.new.execute(@project, sha: status_sha)
+    send_file(image.path, filename: image.name, disposition: 'inline', type: 'image/svg+xml')
+  end
+
   private
 
   def commit

config/routes.rb

@@ -493,6 +493,13 @@ Rails.application.routes.draw do
             constraints: { id: /(?:[^.]|\.(?!atom$))+/, format: /atom/ },
             as: :commits
           )
+
+          get(
+            '/status/*id/badge',
+            to: 'commit#status',
+            constraints: { format: /png/ },
+            as: :commit_status
+          )
         end
 
         resource  :avatar, only: [:show, :destroy]