Add deploy frequency to project-level VSA Summary

app/assets/javascripts/cycle_analytics/cycle_analytics_bundle.js

@@ -59,16 +59,10 @@ export default () => {
         service: this.createCycleAnalyticsService(cycleAnalyticsEl.dataset.requestPath),
       };
     },
-    defaultNumberOfSummaryItems: 3,
     computed: {
       currentStage() {
         return this.store.currentActiveStage();
       },
-      summaryTableColumnClass() {
-        return this.state.summary.length === this.$options.defaultNumberOfSummaryItems
-          ? 'col-sm-3'
-          : 'col-sm-4';
-      },
     },
     created() {
       // Conditional check placed here to prevent this method from being called on the

app/assets/stylesheets/pages/cycle_analytics.scss

@@ -105,10 +105,6 @@
     }
   }
 
-  .js-ca-dropdown {
-    top: $gl-padding-top;
-  }
-
   .stage-panel-body {
     display: flex;
     flex-wrap: wrap;

app/serializers/analytics_summary_entity.rb

@@ -4,4 +4,12 @@ class AnalyticsSummaryEntity < Grape::Entity
   expose :value, safe: true
   expose :title
   expose :unit, if: { with_unit: true }
+
+  private
+
+  def value
+    return object.value if object.value.is_a? String
+
+    object.value&.nonzero? ? object.value.to_s : '-'
+  end
 end

app/views/projects/cycle_analytics/show.html.haml

@@ -10,27 +10,25 @@
     .card
       .card-header
         {{ __('Recent Project Activity') }}
-      .content-block
-        .container-fluid
-          .row
-            .col-12.column{ "v-for" => "item in state.summary", ":class" => "summaryTableColumnClass" }
-              %h3.header {{ item.value }}
-              %p.text {{ item.title }}
-            .col-12.column{ ":class" => "summaryTableColumnClass" }
-              .dropdown.inline.js-ca-dropdown
-                %button.dropdown-menu-toggle{ "data-toggle" => "dropdown", :type => "button" }
-                  %span.dropdown-label {{ n__('Last %d day', 'Last %d days', 30) }}
-                  %i.fa.fa-chevron-down
-                %ul.dropdown-menu.dropdown-menu-right
-                  %li
-                    %a{ "href" => "#", "data-value" => "7" }
-                      {{ n__('Last %d day', 'Last %d days', 7) }}
-                  %li
-                    %a{ "href" => "#", "data-value" => "30" }
-                      {{ n__('Last %d day', 'Last %d days', 30) }}
-                  %li
-                    %a{ "href" => "#", "data-value" => "90" }
-                      {{ n__('Last %d day', 'Last %d days', 90) }}
+      .d-flex.justify-content-between
+        .flex-grow.text-center{ "v-for" => "item in state.summary" }
+          %h3.header {{ item.value }}
+          %p.text {{ item.title }}
+        .flex-grow.align-self-center.text-center
+          .dropdown.inline.js-ca-dropdown
+            %button.dropdown-menu-toggle{ "data-toggle" => "dropdown", :type => "button" }
+              %span.dropdown-label {{ n__('Last %d day', 'Last %d days', 30) }}
+              %i.fa.fa-chevron-down
+            %ul.dropdown-menu.dropdown-menu-right
+              %li
+                %a{ "href" => "#", "data-value" => "7" }
+                  {{ n__('Last %d day', 'Last %d days', 7) }}
+              %li
+                %a{ "href" => "#", "data-value" => "30" }
+                  {{ n__('Last %d day', 'Last %d days', 30) }}
+              %li
+                %a{ "href" => "#", "data-value" => "90" }
+                  {{ n__('Last %d day', 'Last %d days', 90) }}
     .stage-panel-container
       .card.stage-panel
         .card-header.border-bottom-0

ee/changelogs/unreleased/add-deployment-frequency-to-project-vsa-summary.yml

+---
+title: Add deployment frequency to Project level Value Stream Analytics summary
+merge_request: 28772
+author:
+type: added

ee/spec/fixtures/api/schemas/analytics/cycle_analytics/summary.json

@@ -7,7 +7,7 @@
     "required": ["value", "title"],
     "properties": {
       "value": {
-        "type": "number"
+        "type": "string"
       },
       "title": {
         "type": "string"

lib/gitlab/cycle_analytics/stage_summary.rb

@@ -14,6 +14,7 @@ module Gitlab
         summary = [issue_stats]
         summary << commit_stats if user_has_sufficient_access?
         summary << deploy_stats
+        summary << deployment_frequency_stats
       end
 
       private
@@ -26,16 +27,32 @@ module Gitlab
         serialize(Summary::Commit.new(project: @project, from: @from, to: @to))
       end
 
+      def deployments_summary
+        @deployments_summary ||=
+          Summary::Deploy.new(project: @project, from: @from, to: @to)
+      end
+
       def deploy_stats
-        serialize(Summary::Deploy.new(project: @project, from: @from, to: @to))
+        serialize deployments_summary
+      end
+
+      def deployment_frequency_stats
+        serialize(
+          Summary::DeploymentFrequency.new(
+            deployments: deployments_summary.value,
+            from: @from,
+            to: @to),
+          with_unit: true
+        )
       end
 
       def user_has_sufficient_access?
         @project.team.member?(@current_user, Gitlab::Access::REPORTER)
       end
 
-      def serialize(summary_object)
-        AnalyticsSummarySerializer.new.represent(summary_object)
+      def serialize(summary_object, with_unit: false)
+        AnalyticsSummarySerializer.new.represent(
+          summary_object, with_unit: with_unit)
       end
     end
   end

lib/gitlab/cycle_analytics/summary/deployment_frequency.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module CycleAnalytics
+    module Summary
+      class DeploymentFrequency < Base
+        include SummaryHelper
+
+        def initialize(deployments:, from:, to: nil, project: nil)
+          @deployments = deployments
+
+          super(project: project, from: from, to: to)
+        end
+
+        def title
+          _('Deployment Frequency')
+        end
+
+        def value
+          @value ||=
+            frequency(@deployments, @from, @to || Time.now)
+        end
+
+        def unit
+          _('per day')
+        end
+      end
+    end
+  end
+end

lib/gitlab/cycle_analytics/summary_helper.rb

@@ -4,11 +4,14 @@ module Gitlab
   module CycleAnalytics
     module SummaryHelper
       def frequency(count, from, to)
-        (count / days(from, to)).round(1)
+        return count if count.zero?
+
+        freq = (count / days(from, to)).round(1)
+        freq.zero? ? '0' : freq
       end
 
       def days(from, to)
-        [(to.end_of_day - from.beginning_of_day) / (24 * 60 * 60), 1].max
+        [(to.end_of_day - from.beginning_of_day).fdiv(1.day), 1].max
       end
     end
   end

spec/features/cycle_analytics_spec.rb

@@ -30,6 +30,7 @@ describe 'Value Stream Analytics', :js do
         expect(new_issues_counter).to have_content('-')
         expect(commits_counter).to have_content('-')
         expect(deploys_counter).to have_content('-')
+        expect(deployment_frequency_counter).to have_content('-')
       end
 
       it 'shows active stage with empty message' do
@@ -53,6 +54,7 @@ describe 'Value Stream Analytics', :js do
         expect(new_issues_counter).to have_content('1')
         expect(commits_counter).to have_content('2')
         expect(deploys_counter).to have_content('1')
+        expect(deployment_frequency_counter).to have_content('0')
       end
 
       it 'shows data on each stage', :sidekiq_might_not_need_inline do
@@ -134,7 +136,15 @@ describe 'Value Stream Analytics', :js do
   end
 
   def deploys_counter
-    find(:xpath, "//p[contains(text(),'Deploy')]/preceding-sibling::h3")
+    find(:xpath, "//p[contains(text(),'Deploy')]/preceding-sibling::h3", match: :first)
+  end
+
+  def deployment_frequency_counter_selector
+    "//p[contains(text(),'Deployment Frequency')]/preceding-sibling::h3"
+  end
+
+  def deployment_frequency_counter
+    find(:xpath, deployment_frequency_counter_selector)
   end
 
   def expect_issue_to_be_present

spec/lib/gitlab/cycle_analytics/group_stage_summary_spec.rb

@@ -20,7 +20,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
       end
 
       it "finds the number of issues created after it" do
-        expect(subject.first[:value]).to eq(2)
+        expect(subject.first[:value]).to eq('2')
       end
 
       context 'with subgroups' do
@@ -29,7 +29,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
         end
 
         it "finds issues from them" do
-          expect(subject.first[:value]).to eq(3)
+          expect(subject.first[:value]).to eq('3')
         end
       end
 
@@ -41,7 +41,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
         subject { described_class.new(group, options: { from: Time.now, current_user: user, projects: [project.id, project_2.id] }).data }
 
         it 'finds issues from those projects' do
-          expect(subject.first[:value]).to eq(2)
+          expect(subject.first[:value]).to eq('2')
         end
       end
 
@@ -49,7 +49,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
         subject { described_class.new(group, options: { from: 10.days.ago, to: Time.now, current_user: user }).data }
 
         it 'finds issues from 5 days ago' do
-          expect(subject.first[:value]).to eq(2)
+          expect(subject.first[:value]).to eq('2')
         end
       end
     end
@@ -62,7 +62,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
       end
 
       it "doesn't find issues from them" do
-        expect(subject.first[:value]).to eq(2)
+        expect(subject.first[:value]).to eq('2')
       end
     end
   end
@@ -77,7 +77,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
       end
 
       it "finds the number of deploys made created after it" do
-        expect(subject.second[:value]).to eq(2)
+        expect(subject.second[:value]).to eq('2')
       end
 
       context 'with subgroups' do
@@ -88,7 +88,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
         end
 
         it "finds deploys from them" do
-          expect(subject.second[:value]).to eq(3)
+          expect(subject.second[:value]).to eq('3')
         end
       end
 
@@ -102,7 +102,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
         subject { described_class.new(group, options: { from: Time.now, current_user: user, projects: [project.id, project_2.id] }).data }
 
         it 'shows deploys from those projects' do
-          expect(subject.second[:value]).to eq(2)
+          expect(subject.second[:value]).to eq('2')
         end
       end
 
@@ -110,7 +110,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
         subject { described_class.new(group, options: { from: 10.days.ago, to: Time.now, current_user: user }).data }
 
         it 'finds deployments from 5 days ago' do
-          expect(subject.second[:value]).to eq(2)
+          expect(subject.second[:value]).to eq('2')
         end
       end
     end
@@ -123,7 +123,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
       end
 
       it "doesn't find deploys from them" do
-        expect(subject.second[:value]).to eq(0)
+        expect(subject.second[:value]).to eq('-')
       end
     end
   end
@@ -153,7 +153,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
     context 'when `to` is nil' do
       it 'includes range until now' do
         # 1 deployment over 7 days
-        expect(subject[:value]).to eq(0.1)
+        expect(subject[:value]).to eq('0.1')
       end
     end
 
@@ -169,7 +169,7 @@ describe Gitlab::CycleAnalytics::GroupStageSummary do
 
       it 'returns deployment frequency within `from` and `to` range' do
         # 2 deployments over 20 days
-        expect(subject[:value]).to eq(0.1)
+        expect(subject[:value]).to eq('0.1')
       end
     end
   end

spec/lib/gitlab/cycle_analytics/stage_summary_spec.rb

@@ -20,13 +20,13 @@ describe Gitlab::CycleAnalytics::StageSummary do
       Timecop.freeze(5.days.ago) { create(:issue, project: project) }
       Timecop.freeze(5.days.from_now) { create(:issue, project: project) }
 
-      expect(subject).to eq(1)
+      expect(subject).to eq('1')
     end
 
     it "doesn't find issues from other projects" do
       Timecop.freeze(5.days.from_now) { create(:issue, project: create(:project)) }
 
-      expect(subject).to eq(0)
+      expect(subject).to eq('-')
     end
 
     context 'when `to` parameter is given' do
@@ -38,14 +38,14 @@ describe Gitlab::CycleAnalytics::StageSummary do
       it "doesn't find any record" do
         options[:to] = Time.now
 
-        expect(subject).to eq(0)
+        expect(subject).to eq('-')
       end
 
       it "finds records created between `from` and `to` range" do
         options[:from] = 10.days.ago
         options[:to] = 10.days.from_now
 
-        expect(subject).to eq(2)
+        expect(subject).to eq('2')
       end
     end
   end
@@ -57,19 +57,19 @@ describe Gitlab::CycleAnalytics::StageSummary do
       Timecop.freeze(5.days.ago) { create_commit("Test message", project, user, 'master') }
       Timecop.freeze(5.days.from_now) { create_commit("Test message", project, user, 'master') }
 
-      expect(subject).to eq(1)
+      expect(subject).to eq('1')
     end
 
     it "doesn't find commits from other projects" do
       Timecop.freeze(5.days.from_now) { create_commit("Test message", create(:project, :repository), user, 'master') }
 
-      expect(subject).to eq(0)
+      expect(subject).to eq('-')
     end
 
-    it "finds a large (> 100) snumber of commits if present" do
+    it "finds a large (> 100) number of commits if present" do
       Timecop.freeze(5.days.from_now) { create_commit("Test message", project, user, 'master', count: 100) }
 
-      expect(subject).to eq(100)
+      expect(subject).to eq('100')
     end
 
     context 'when `to` parameter is given' do
@@ -81,14 +81,14 @@ describe Gitlab::CycleAnalytics::StageSummary do
       it "doesn't find any record" do
         options[:to] = Time.now
 
-        expect(subject).to eq(0)
+        expect(subject).to eq('-')
       end
 
       it "finds records created between `from` and `to` range" do
         options[:from] = 10.days.ago
         options[:to] = 10.days.from_now
 
-        expect(subject).to eq(2)
+        expect(subject).to eq('2')
       end
     end
 
@@ -118,7 +118,7 @@ describe Gitlab::CycleAnalytics::StageSummary do
       Timecop.freeze(5.days.ago) { create(:deployment, :success, project: project) }
       Timecop.freeze(5.days.from_now) { create(:deployment, :success, project: project) }
 
-      expect(subject).to eq(1)
+      expect(subject).to eq('1')
     end
 
     it "doesn't find commits from other projects" do
@@ -126,7 +126,7 @@ describe Gitlab::CycleAnalytics::StageSummary do
         create(:deployment, :success, project: create(:project, :repository))
       end
 
-      expect(subject).to eq(0)
+      expect(subject).to eq('-')
     end
 
     context 'when `to` parameter is given' do
@@ -138,14 +138,76 @@ describe Gitlab::CycleAnalytics::StageSummary do
       it "doesn't find any record" do
         options[:to] = Time.now
 
-        expect(subject).to eq(0)
+        expect(subject).to eq('-')
       end
 
       it "finds records created between `from` and `to` range" do
         options[:from] = 10.days.ago
         options[:to] = 10.days.from_now
 
-        expect(subject).to eq(2)
+        expect(subject).to eq('2')
+      end
+    end
+  end
+
+  describe '#deployment_frequency' do
+    subject { stage_summary.fourth[:value] }
+
+    it 'includes the unit: `per day`' do
+      expect(stage_summary.fourth[:unit]).to eq _('per day')
+    end
+
+    before do
+      Timecop.freeze(5.days.ago) { create(:deployment, :success, project: project) }
+    end
+
+    it 'returns 0.0 when there were deploys but the frequency was too low' do
+      options[:from] = 30.days.ago
+
+      # 1 deployment over 30 days
+      # frequency of 0.03, rounded off to 0.0
+      expect(subject).to eq('0')
+    end
+
+    it 'returns `-` when there were no deploys' do
+      options[:from] = 4.days.ago
+
+      # 0 deployment in the last 4 days
+      expect(subject).to eq('-')
+    end
+
+    context 'when `to` is nil' do
+      it 'includes range until now' do
+        options[:from] = 6.days.ago
+        options[:to] = nil
+
+        # 1 deployment over 7 days
+        expect(subject).to eq('0.1')
+      end
+    end
+
+    context 'when `to` is given' do
+      before do
+        Timecop.freeze(5.days.from_now) { create(:deployment, :success, project: project) }
+      end
+
+      it 'finds records created between `from` and `to` range' do
+        options[:from] = 10.days.ago
+        options[:to] = 10.days.from_now
+
+        # 2 deployments over 20 days
+        expect(subject).to eq('0.1')
+      end
+
+      context 'when `from` and `to` are within a day' do
+        it 'returns the number of deployments made on that day' do
+          Timecop.freeze(Time.now) do
+            create(:deployment, :success, project: project)
+            options[:from] = options[:to] = Time.now
+
+            expect(subject).to eq('1')
+          end
+        end
       end
     end
   end

spec/models/cycle_analytics/group_level_spec.rb

@@ -38,7 +38,7 @@ describe CycleAnalytics::GroupLevel do
     end
 
     it 'returns medians for each stage for a specific group' do
-      expect(subject.summary.map { |summary| summary[:value] }).to contain_exactly(0.1, 1, 1)
+      expect(subject.summary.map { |summary| summary[:value] }).to contain_exactly('0.1', '1', '1')
     end
   end
 end

spec/serializers/analytics_summary_serializer_spec.rb

@@ -34,7 +34,10 @@ describe AnalyticsSummarySerializer do
   end
 
   context 'when representing with unit' do
-    let(:resource) { { title: 'frequency', value: 1.12, unit: 'per day' } }
+    let(:resource) do
+      Gitlab::CycleAnalytics::Summary::DeploymentFrequency
+        .new(deployments: 10, from: 1.day.ago)
+    end
 
     subject { described_class.new.represent(resource, with_unit: true) }