The readme checkbox for new projects is checked by default

Resolves the new_project_readme experiment to the candidate experience.
This experiment showed increased levels of engagement for subsequent
actions and days of engagement on projects that were included.

Changelog: changed

app/controllers/projects_controller.rb

@@ -74,11 +74,6 @@ class ProjectsController < Projects::ApplicationController
     @project = ::Projects::CreateService.new(current_user, project_params(attributes: project_params_create_attributes)).execute
 
     if @project.saved?
-      experiment(:new_project_readme, actor: current_user).track(
-        :created,
-        property: active_new_project_tab,
-        value: project_params[:initialize_with_readme].to_i
-      )
       redirect_to(
         project_path(@project, custom_import_params),
         notice: _("Project '%{project_name}' was successfully created.") % { project_name: @project.name }

app/experiments/new_project_readme_experiment.rb

-# frozen_string_literal: true
-
-class NewProjectReadmeExperiment < ApplicationExperiment # rubocop:disable Gitlab/NamespacedClass
-  include ProjectCommitCount
-
-  INITIAL_WRITE_LIMIT = 3
-  EXPERIMENT_START_DATE = DateTime.parse('2021/1/20')
-  MAX_ACCOUNT_AGE = 7.days
-
-  exclude { context.value[:actor].nil? }
-  exclude { context.actor.created_at < MAX_ACCOUNT_AGE.ago }
-
-  def control_behavior
-    false # we don't want the checkbox to be checked
-  end
-
-  def candidate_behavior
-    true # check the checkbox by default
-  end
-
-  def track_initial_writes(project)
-    return unless should_track? # early return if we don't need to ask for commit counts
-    return unless project.created_at > EXPERIMENT_START_DATE # early return for older projects
-    return unless (count = commit_count(project)) < INITIAL_WRITE_LIMIT
-
-    track(:write, property: project.created_at.to_s, value: count)
-  end
-
-  private
-
-  def commit_count(project)
-    commit_count_for(project,
-      default_count: INITIAL_WRITE_LIMIT,
-      max_count: INITIAL_WRITE_LIMIT,
-      experiment: name
-    )
-  end
-end

app/views/projects/_new_project_fields.html.haml

@@ -54,8 +54,7 @@
   .form-group.row.initialize-with-readme-setting
     %div{ :class => "col-sm-12" }
       .form-check
-        - experiment(:new_project_readme, actor: current_user) do |e|
-          = check_box_tag 'project[initialize_with_readme]', '1', e.run, class: 'form-check-input', data: { qa_selector: "initialize_with_readme_checkbox", track_label: "#{track_label}", track_event: "activate_form_input", track_property: "init_with_readme", track_value: "" }
+        = check_box_tag 'project[initialize_with_readme]', '1', true, class: 'form-check-input', data: { qa_selector: "initialize_with_readme_checkbox", track_label: "#{track_label}", track_event: "activate_form_input", track_property: "init_with_readme", track_value: "" }
         = label_tag 'project[initialize_with_readme]', class: 'form-check-label' do
           .option-title
             %strong= s_('ProjectsNew|Initialize repository with a README')

app/workers/post_receive.rb

@@ -124,7 +124,6 @@ class PostReceive # rubocop:disable Scalability/IdempotentWorker
   end
 
   def after_project_changes_hooks(project, user, refs, changes)
-    experiment(:new_project_readme, actor: user).track_initial_writes(project)
     experiment(:empty_repo_upload, project: project).track_initial_write
     repository_update_hook_data = Gitlab::DataBuilder::Repository.update(project, user, changes, refs)
     SystemHooksService.new.execute_hooks(repository_update_hook_data, :repository_update_hooks)

ee/config/feature_flags/experiment/new_project_readme.yml

----
-name: new_project_readme
-rollout_issue_url: 
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/51505
-milestone: '13.8'
-type: experiment
-group: group::adoption
-default_enabled: false

spec/controllers/projects_controller_spec.rb

@@ -435,32 +435,6 @@ RSpec.describe ProjectsController do
     end
   end
 
-  describe 'POST create' do
-    let!(:project_params) do
-      {
-        path: 'foo',
-        description: 'bar',
-        namespace_id: user.namespace.id,
-        visibility_level: Gitlab::VisibilityLevel::PUBLIC,
-        initialize_with_readme: 1
-      }
-    end
-
-    before do
-      sign_in(user)
-    end
-
-    it 'tracks a created event for the new_project_readme experiment', :experiment do
-      expect(experiment(:new_project_readme)).to track(
-        :created,
-        property: 'blank',
-        value: 1
-      ).with_context(actor: user).on_next_instance
-
-      post :create, params: { project: project_params }
-    end
-  end
-
   describe 'POST #archive' do
     let_it_be(:group) { create(:group) }
     let_it_be(:project) { create(:project, group: group) }

spec/experiments/new_project_readme_experiment_spec.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-
-RSpec.describe NewProjectReadmeExperiment, :experiment do
-  subject { described_class.new(actor: actor) }
-
-  let(:actor) { User.new(id: 42, created_at: Time.current) }
-
-  describe "exclusions" do
-    let(:threshold) { described_class::MAX_ACCOUNT_AGE }
-
-    it { is_expected.to exclude(actor: User.new(created_at: (threshold + 1.minute).ago)) }
-    it { is_expected.not_to exclude(actor: User.new(created_at: (threshold - 1.minute).ago)) }
-  end
-
-  describe "the control behavior" do
-    subject { described_class.new(actor: actor).run(:control) }
-
-    it { is_expected.to be false }
-  end
-
-  describe "the candidate behavior" do
-    subject { described_class.new(actor: actor).run(:candidate) }
-
-    it { is_expected.to be true }
-  end
-
-  context "when tracking initial writes" do
-    let!(:project) { create(:project, :repository) }
-
-    before do
-      stub_experiments(new_project_readme: :control)
-    end
-
-    it "tracks an event for the first commit on a project with a repository" do
-      expect(subject).to receive(:commit_count_for).with(project, default_count: described_class::INITIAL_WRITE_LIMIT, max_count: described_class::INITIAL_WRITE_LIMIT, experiment: 'new_project_readme').and_return(1)
-      expect(subject).to receive(:track).with(:write, property: project.created_at.to_s, value: 1).and_call_original
-
-      subject.track_initial_writes(project)
-    end
-
-    it "tracks an event for the second commit on a project with a repository" do
-      allow(subject).to receive(:commit_count_for).and_return(2)
-
-      expect(subject).to receive(:track).with(:write, property: project.created_at.to_s, value: 2).and_call_original
-
-      subject.track_initial_writes(project)
-    end
-
-    it "doesn't track if the repository has more then 2 commits" do
-      allow(subject).to receive(:commit_count_for).and_return(3)
-
-      expect(subject).not_to receive(:track)
-
-      subject.track_initial_writes(project)
-    end
-
-    it "doesn't track when we generally shouldn't" do
-      allow(subject).to receive(:should_track?).and_return(false)
-
-      expect(subject).not_to receive(:track)
-
-      subject.track_initial_writes(project)
-    end
-
-    it "doesn't track if the project is older" do
-      expect(project).to receive(:created_at).and_return(described_class::EXPERIMENT_START_DATE - 1.minute)
-
-      expect(subject).not_to receive(:track)
-
-      subject.track_initial_writes(project)
-    end
-  end
-end

spec/features/projects/user_creates_project_spec.rb

@@ -8,8 +8,6 @@ RSpec.describe 'User creates a project', :js do
   before do
     sign_in(user)
     create(:personal_key, user: user)
-
-    stub_experiments(new_project_readme: :candidate)
   end
 
   it 'creates a new project' do
@@ -18,7 +16,6 @@ RSpec.describe 'User creates a project', :js do
     find('[data-qa-panel-name="blank_project"]').click
     fill_in(:project_name, with: 'Empty')
 
-    # part of the new_project_readme experiment
     expect(page).to have_checked_field 'Initialize repository with a README'
     uncheck 'Initialize repository with a README'
 

spec/workers/post_receive_spec.rb

@@ -85,14 +85,6 @@ RSpec.describe PostReceive do
         perform
       end
 
-      it 'tracks an event for the new_project_readme experiment', :experiment do
-        expect_next_instance_of(NewProjectReadmeExperiment, :new_project_readme, nil, actor: empty_project.owner) do |e|
-          expect(e).to receive(:track_initial_writes).with(empty_project)
-        end
-
-        perform
-      end
-
       it 'tracks an event for the empty_repo_upload experiment', :experiment do
         expect_next_instance_of(EmptyRepoUploadExperiment) do |e|
           expect(e).to receive(:track_initial_write)