Implement CI/CD config attributes for persisted stages

lib/ci/gitlab_ci_yaml_processor.rb

@@ -50,10 +50,20 @@ module Ci
       end
     end
 
+    def stages_for_ref(ref, tag = false, trigger_request = nil)
+      stages = @stages.map do |stage|
+        builds = builds_for_stage_and_ref(stage, ref, tag, trigger_request)
+
+        { name: stage, builds_attributes: builds.to_a } if builds.any?
+      end
+
+      stages.compact.sort_by { |stage| @stages.index(stage[:name]) }
+    end
+
     def build_attributes(name)
       job = @jobs[name.to_sym] || {}
-      {
-        stage_idx: @stages.index(job[:stage]),
+
+      { stage_idx: @stages.index(job[:stage]),
         stage: job[:stage],
         commands: job[:commands],
         tag_list: job[:tags] || [],

spec/lib/ci/gitlab_ci_yaml_processor_spec.rb

 require 'spec_helper'
 
 module Ci
-  describe GitlabCiYamlProcessor, lib: true do
+  describe GitlabCiYamlProcessor, :lib do
+    subject { described_class.new(config, path) }
     let(:path) { 'path' }
 
     describe 'our current .gitlab-ci.yml' do
@@ -82,6 +83,44 @@ module Ci
       end
     end
 
+    describe '#stages_for_ref' do
+      context 'when no refs policy is specified' do
+        let(:config) do
+          YAML.dump(production: { stage: 'deploy', script: 'cap prod' },
+                    rspec: { stage: 'test', script: 'rspec' },
+                    spinach: { stage: 'test', script: 'spinach' })
+        end
+
+        it 'returns model attributes for stages with nested jobs' do
+          attributes = subject.stages_for_ref('master')
+
+          expect(attributes.size).to eq 2
+          expect(attributes.dig(0, :name)).to eq 'test'
+          expect(attributes.dig(1, :name)).to eq 'deploy'
+          expect(attributes.dig(0, :builds_attributes, 0, :name)).to eq 'rspec'
+          expect(attributes.dig(0, :builds_attributes, 1, :name)).to eq 'spinach'
+          expect(attributes.dig(1, :builds_attributes, 0, :name)).to eq 'production'
+        end
+      end
+
+      context 'when refs policy is specified' do
+        let(:config) do
+          YAML.dump(production: { stage: 'deploy', script: 'cap prod', only: ['master'] },
+                    spinach: { stage: 'test', script: 'spinach', only: ['tags'] })
+        end
+
+        it 'returns stage attributes except of jobs assigned to master' do
+          # true flag argument means matching jobs for tags
+          #
+          attributes = subject.stages_for_ref('feature', true)
+
+          expect(attributes.size).to eq 1
+          expect(attributes.dig(0, :name)).to eq 'test'
+          expect(attributes.dig(0, :builds_attributes, 0, :name)).to eq 'spinach'
+        end
+      end
+    end
+
     describe "#builds_for_ref" do
       let(:type) { 'test' }
 

spec/services/ci/create_pipeline_service_spec.rb

 require 'spec_helper'
 
-describe Ci::CreatePipelineService, services: true do
+describe Ci::CreatePipelineService, :services do
   let(:project) { create(:project, :repository) }
   let(:user) { create(:admin) }