Merge branch 'optimise-pipelines' into 'master'

app/models/ci/build.rb

@@ -103,7 +103,6 @@ module Ci
     end
 
     def playable?
-      project.builds_enabled? && has_commands? &&
       action? && manual?
     end
 
@@ -111,10 +110,6 @@ module Ci
       self.when == 'manual'
     end
 
-    def has_commands?
-      commands.present?
-    end
-
     def play(current_user)
       # Try to queue a current build
       if self.enqueue
@@ -131,8 +126,7 @@ module Ci
     end
 
     def retryable?
-      project.builds_enabled? && has_commands? &&
-        (success? || failed? || canceled?)
+      success? || failed? || canceled?
     end
 
     def retried?

app/models/ci/pipeline.rb

@@ -12,6 +12,12 @@ module Ci
     has_many :builds, foreign_key: :commit_id
     has_many :trigger_requests, dependent: :destroy, foreign_key: :commit_id
 
+    has_many :pending_builds, -> { pending }, foreign_key: :commit_id, class_name: 'Ci::Build'
+    has_many :retryable_builds, -> { latest.failed_or_canceled }, foreign_key: :commit_id, class_name: 'Ci::Build'
+    has_many :cancelable_statuses, -> { cancelable }, foreign_key: :commit_id, class_name: 'CommitStatus'
+    has_many :manual_actions, -> { latest.manual_actions }, foreign_key: :commit_id, class_name: 'Ci::Build'
+    has_many :artifacts, -> { latest.with_artifacts_not_expired }, foreign_key: :commit_id, class_name: 'Ci::Build'
+
     delegate :id, to: :project, prefix: true
 
     validates :sha, presence: { unless: :importing? }
@@ -160,10 +166,6 @@ module Ci
       end
     end
 
-    def artifacts
-      builds.latest.with_artifacts_not_expired.includes(project: [:namespace])
-    end
-
     def valid_commit_sha
       if self.sha == Gitlab::Git::BLANK_SHA
         self.errors.add(:sha, " cant be 00000000 (branch removal)")
@@ -200,25 +202,20 @@ module Ci
       !tag?
     end
 
-    def manual_actions
-      builds.latest.manual_actions.includes(project: [:namespace])
-    end
-
     def stuck?
-      builds.pending.includes(:project).any?(&:stuck?)
+      pending_builds.any?(&:stuck?)
     end
 
     def retryable?
-      builds.latest.failed_or_canceled.any?(&:retryable?)
+      retryable_builds.any?
     end
 
     def cancelable?
-      statuses.cancelable.any?
+      cancelable_statuses.any?
     end
 
     def cancel_running
-      Gitlab::OptimisticLocking.retry_lock(
-        statuses.cancelable) do |cancelable|
+      Gitlab::OptimisticLocking.retry_lock(cancelable_statuses) do |cancelable|
         cancelable.find_each(&:cancel)
       end
     end

app/models/project.rb

@@ -172,6 +172,8 @@ class Project < ActiveRecord::Base
   has_many :environments, dependent: :destroy
   has_many :deployments, dependent: :destroy
 
+  has_many :active_runners, -> { active }, through: :runner_projects, source: :runner, class_name: 'Ci::Runner'
+
   accepts_nested_attributes_for :variables, allow_destroy: true
   accepts_nested_attributes_for :project_feature
 
@@ -1085,15 +1087,15 @@ class Project < ActiveRecord::Base
   end
 
   def shared_runners
-    shared_runners_available? ? Ci::Runner.shared : Ci::Runner.none
+    @shared_runners ||= shared_runners_available? ? Ci::Runner.shared : Ci::Runner.none
   end
 
-  def any_runners?(&block)
-    if runners.active.any?(&block)
-      return true
+  def active_shared_runners
+    @active_shared_runners ||= shared_runners.active
   end
 
-    shared_runners.active.any?(&block)
+  def any_runners?(&block)
+    active_runners.any?(&block) || active_shared_runners.any?(&block)
   end
 
   def valid_runners_token?(token)

app/serializers/pipeline_entity.rb

@@ -69,13 +69,13 @@ class PipelineEntity < Grape::Entity
   alias_method :pipeline, :object
 
   def can_retry?
-    pipeline.retryable? &&
-      can?(request.user, :update_pipeline, pipeline)
+    can?(request.user, :update_pipeline, pipeline) &&
+      pipeline.retryable?
   end
 
   def can_cancel?
-    pipeline.cancelable? &&
-      can?(request.user, :update_pipeline, pipeline)
+    can?(request.user, :update_pipeline, pipeline) &&
+      pipeline.cancelable?
   end
 
   def detailed_status

app/serializers/pipeline_serializer.rb

@@ -13,7 +13,15 @@ class PipelineSerializer < BaseSerializer
 
   def represent(resource, opts = {})
     if resource.is_a?(ActiveRecord::Relation)
-      resource = resource.includes(project: :namespace)
+      resource = resource.preload([
+        :retryable_builds,
+        :cancelable_statuses,
+        :trigger_requests,
+        :project,
+        { pending_builds: :project },
+        { manual_actions: :project },
+        { artifacts: :project }
+      ])
     end
 
     if paginated?

app/services/ci/retry_pipeline_service.rb

@@ -7,9 +7,7 @@ module Ci
         raise Gitlab::Access::AccessDeniedError
       end
 
-      pipeline.builds.latest.failed_or_canceled.find_each do |build|
-        next unless build.retryable?
-
+      pipeline.retryable_builds.find_each do |build|
         Ci::RetryBuildService.new(project, current_user)
           .reprocess(build)
       end

changelogs/unreleased/optimise-pipelines-json.yml

+---
+title: Optimise pipelines.json endpoint
+merge_request:
+author:

spec/factories/ci/triggers.rb

 FactoryGirl.define do
   factory :ci_trigger_without_token, class: Ci::Trigger do
     factory :ci_trigger do
-      token 'token'
+      sequence(:token) { |n| "token#{n}" }
 
       factory :ci_trigger_for_trigger_schedule do
         token { SecureRandom.hex(15) }

spec/lib/gitlab/import_export/all_models.yml

@@ -89,6 +89,11 @@ pipelines:
 - statuses
 - builds
 - trigger_requests
+- pending_builds
+- retryable_builds
+- cancelable_statuses
+- manual_actions
+- artifacts
 statuses:
 - project
 - pipeline
@@ -199,6 +204,7 @@ project:
 - builds
 - runner_projects
 - runners
+- active_runners
 - variables
 - triggers
 - trigger_schedules

spec/models/ci/build_spec.rb

@@ -764,40 +764,6 @@ describe Ci::Build, :models do
     end
   end
 
-  describe '#has_commands?' do
-    context 'when build has commands' do
-      let(:build) do
-        create(:ci_build, commands: 'rspec')
-      end
-
-      it 'has commands' do
-        expect(build).to have_commands
-      end
-    end
-
-    context 'when does not have commands' do
-      context 'when commands are an empty string' do
-        let(:build) do
-          create(:ci_build, commands: '')
-        end
-
-        it 'has no commands' do
-          expect(build).not_to have_commands
-        end
-      end
-
-      context 'when commands are not set at all' do
-        let(:build) do
-          create(:ci_build, commands: nil)
-        end
-
-        it 'has no commands' do
-          expect(build).not_to have_commands
-        end
-      end
-    end
-  end
-
   describe '#has_tags?' do
     context 'when build has tags' do
       subject { create(:ci_build, tag_list: ['tag']) }

spec/models/ci/trigger_spec.rb

@@ -17,8 +17,8 @@ describe Ci::Trigger, models: true do
       expect(trigger.token).not_to be_nil
     end
 
-    it 'does not set an random token if one provided' do
-      trigger = create(:ci_trigger, project: project)
+    it 'does not set a random token if one provided' do
+      trigger = create(:ci_trigger, project: project, token: 'token')
 
       expect(trigger.token).to eq('token')
     end

spec/models/project_spec.rb

@@ -58,6 +58,7 @@ describe Project, models: true do
     it { is_expected.to have_many(:builds) }
     it { is_expected.to have_many(:runner_projects) }
     it { is_expected.to have_many(:runners) }
+    it { is_expected.to have_many(:active_runners) }
     it { is_expected.to have_many(:variables) }
     it { is_expected.to have_many(:triggers) }
     it { is_expected.to have_many(:pages_domains) }

spec/serializers/pipeline_serializer_spec.rb

@@ -93,6 +93,44 @@ describe PipelineSerializer do
         end
       end
     end
+
+    context 'number of queries' do
+      let(:resource) { Ci::Pipeline.all }
+      let(:project) { create(:empty_project) }
+
+      before do
+        Ci::Pipeline::AVAILABLE_STATUSES.each do |status|
+          create_pipeline(status)
+        end
+
+        RequestStore.begin!
+      end
+
+      after do
+        RequestStore.end!
+        RequestStore.clear!
+      end
+
+      it "verifies number of queries" do
+        recorded = ActiveRecord::QueryRecorder.new { subject }
+        expect(recorded.count).to be_within(1).of(50)
+        expect(recorded.cached_count).to eq(0)
+      end
+
+      def create_pipeline(status)
+        create(:ci_empty_pipeline, project: project, status: status).tap do |pipeline|
+          Ci::Build::AVAILABLE_STATUSES.each do |status|
+            create_build(pipeline, status, status)
+          end
+        end
+      end
+
+      def create_build(pipeline, stage, status)
+        create(:ci_build, :tags, :triggered, :artifacts,
+          pipeline: pipeline, stage: stage,
+          name: stage, status: status)
+      end
+    end
   end
 
   describe '#represent_status' do

spec/services/ci/process_pipeline_service_spec.rb

@@ -462,7 +462,9 @@ describe Ci::ProcessPipelineService, '#execute', :services do
     builds.find_by(name: name).play(user)
   end
 
-  delegate :manual_actions, to: :pipeline
+  def manual_actions
+    pipeline.manual_actions(true)
+  end
 
   def create_build(name, **opts)
     create(:ci_build, :created, pipeline: pipeline, name: name, **opts)

spec/support/query_recorder.rb

 module ActiveRecord
   class QueryRecorder
-    attr_reader :log
+    attr_reader :log, :cached
 
     def initialize(&block)
       @log = []
+      @cached = []
       ActiveSupport::Notifications.subscribed(method(:callback), 'sql.active_record', &block)
     end
 
     def callback(name, start, finish, message_id, values)
-      return if %w(CACHE SCHEMA).include?(values[:name])
+      if values[:name]&.include?("CACHE")
+        @cached << values[:sql]
+      elsif !values[:name]&.include?("SCHEMA")
         @log << values[:sql]
       end
+    end
 
     def count
       @log.count
     end
 
+    def cached_count
+      @cached.count
+    end
+
     def log_message
       @log.join("\n\n")
     end