Extract CI/CD build retry code to separate service

app/models/ci/build.rb

@@ -63,32 +63,7 @@ module Ci
       end
 
       def retry(build, user = nil)
-        new_build = Ci::Build.create(
-          ref: build.ref,
-          tag: build.tag,
-          options: build.options,
-          commands: build.commands,
-          tag_list: build.tag_list,
-          project: build.project,
-          pipeline: build.pipeline,
-          name: build.name,
-          allow_failure: build.allow_failure,
-          stage: build.stage,
-          stage_idx: build.stage_idx,
-          trigger_request: build.trigger_request,
-          yaml_variables: build.yaml_variables,
-          when: build.when,
-          user: user,
-          environment: build.environment,
-          status_event: 'enqueue'
-        )
-
-        MergeRequests::AddTodoWhenBuildFailsService
-          .new(build.project, nil)
-          .close(new_build)
-
-        build.pipeline.mark_as_processable_after_stage(build.stage_idx)
-        new_build
+        Ci::RetryBuildService.new(build, user).retry!
       end
     end
 

app/services/ci/retry_build_service.rb

+module Ci
+  class RetryBuildService
+    def initialize(build, user)
+      @build = build
+      @user = user
+      @pipeline = build.pipeline
+    end
+
+    def retry!
+      clone_build.tap do |new_build|
+        new_build.enqueue!
+
+        MergeRequests::AddTodoWhenBuildFailsService
+          .new(@build.project, @user)
+          .close(new_build)
+
+        @pipeline.mark_as_processable_after_stage(@build.stage_idx)
+      end
+    end
+
+    private
+
+    def clone_build
+      Ci::Build.create(
+        ref: @build.ref,
+        tag: @build.tag,
+        options: @build.options,
+        commands: @build.commands,
+        tag_list: @build.tag_list,
+        project: @build.project,
+        pipeline: @build.pipeline,
+        name: @build.name,
+        allow_failure: @build.allow_failure,
+        stage: @build.stage,
+        stage_idx: @build.stage_idx,
+        trigger_request: @build.trigger_request,
+        yaml_variables: @build.yaml_variables,
+        when: @build.when,
+        environment: @build.environment,
+        user: @user)
+    end
+  end
+end