Add retried jobs to pipeline stages

closes https://gitlab.com/gitlab-org/gitlab-ce/issues/50461

app/controllers/projects/pipelines_controller.rb

@@ -96,7 +96,7 @@ class Projects::PipelinesController < Projects::ApplicationController
 
     render json: StageSerializer
       .new(project: @project, current_user: @current_user)
-      .represent(@stage, details: true)
+      .represent(@stage, details: true, retried: params[:retried])
   end
 
   # TODO: This endpoint is used by mini-pipeline-graph

app/serializers/stage_entity.rb

@@ -19,6 +19,12 @@ class StageEntity < Grape::Entity
     latest_statuses
   end
 
+  expose :retried,
+         if: -> (_, opts) { opts[:retried] },
+         with: JobEntity do |stage|
+    retried_statuses
+  end
+
   expose :detailed_status, as: :status, with: DetailedStatusEntity
 
   expose :path do |stage|
@@ -48,9 +54,19 @@ class StageEntity < Grape::Entity
     @grouped_statuses ||= stage.statuses.latest_ordered.group_by(&:status)
   end
 
+  def grouped_retried_statuses
+    @grouped_retried_statuses ||= stage.statuses.retried_ordered.group_by(&:status)
+  end
+
   def latest_statuses
     HasStatus::ORDERED_STATUSES.map do |ordered_status|
       grouped_statuses.fetch(ordered_status, [])
     end.flatten
   end
+
+  def retried_statuses
+    HasStatus::ORDERED_STATUSES.map do |ordered_status|
+      grouped_retried_statuses.fetch(ordered_status, [])
+    end.flatten
+  end
 end

changelogs/unreleased/50461-add-retried-builds-in-pipeline-stage-endpoint.yml

+---
+title: Add retried jobs to pipeline stage
+merge_request: 21558
+author:
+type: other

spec/controllers/projects/pipelines_controller_spec.rb

@@ -193,14 +193,34 @@ describe Projects::PipelinesController do
 
     context 'when accessing existing stage' do
       before do
+        create(:ci_build, :retried, :failed, pipeline: pipeline, stage: 'build')
         create(:ci_build, pipeline: pipeline, stage: 'build')
+      end
+
+      context 'without retried' do
+        before do
+          get_stage('build')
+        end
 
-        get_stage('build')
+        it 'returns pipeline jobs without the retried builds' do
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(response).to match_response_schema('pipeline_stage')
+          expect(json_response['latest_statuses'].length).to eq 1
+          expect(json_response).not_to have_key('retried')
+        end
       end
 
-      it 'returns html source for stage dropdown' do
-        expect(response).to have_gitlab_http_status(:ok)
-        expect(response).to match_response_schema('pipeline_stage')
+      context 'with retried' do
+        before do
+          get_stage('build', retried: true)
+        end
+
+        it 'returns pipelines jobs with the retried builds' do
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(response).to match_response_schema('pipeline_stage')
+          expect(json_response['latest_statuses'].length).to eq 1
+          expect(json_response['retried'].length).to eq 1
+        end
       end
     end
 
@@ -214,12 +234,13 @@ describe Projects::PipelinesController do
       end
     end
 
-    def get_stage(name)
-      get :stage, namespace_id: project.namespace,
-                  project_id: project,
-                  id: pipeline.id,
-                  stage: name,
-                  format: :json
+    def get_stage(name, params = {})
+      get :stage, **params.merge(
+        namespace_id: project.namespace,
+        project_id: project,
+        id: pipeline.id,
+        stage: name,
+        format: :json)
     end
   end
 

spec/fixtures/api/schemas/job/job.json

@@ -25,7 +25,9 @@
     "playable": { "type": "boolean" },
     "created_at": { "type": "string" },
     "updated_at": { "type": "string" },
-    "status": { "$ref": "../status/ci_detailed_status.json" }
+    "status": { "$ref": "../status/ci_detailed_status.json" },
+    "callout_message": { "type": "string" },
+    "recoverable": { "type": "boolean" }
   },
   "additionalProperties": true
 }

spec/fixtures/api/schemas/pipeline_stage.json

@@ -16,6 +16,11 @@
       "items": { "$ref": "job/job.json" },
       "optional": true
     },
+    "retried": {
+      "type": "array",
+      "items": { "$ref": "job/job.json" },
+      "optional": true
+    },
     "status": { "$ref": "status/ci_detailed_status.json" },
     "path": { "type": "string" },
     "dropdown_path": { "type": "string" }