Add readme in repo creation for reg flow

This adds the ability to have a repo created with a readme associated
with it as part of the registration group and project creation.

Changelog: added
EE: true

ee/app/controllers/registrations/groups_projects_controller.rb

@@ -42,7 +42,7 @@ module Registrations
           end
         end
 
-        @project = ::Projects::CreateService.new(current_user, project_params).execute
+        @project = ::Projects::CreateService.new(current_user, create_project_params).execute
         if @project.saved?
           combined_registration_experiment.track(:create_project, namespace: @project.namespace)
 
@@ -98,8 +98,12 @@ module Registrations
       @combined_registration_experiment ||= experiment(:combined_registration, user: current_user)
     end
 
-    def project_params
-      params.require(:project).permit(project_params_attributes).merge(namespace_id: @group.id)
+    def create_project_params
+      project_params(:initialize_with_readme)
+    end
+
+    def project_params(*extra)
+      params.require(:project).permit(project_params_attributes + extra).merge(namespace_id: @group.id)
     end
 
     def modified_group_params

ee/app/views/registrations/groups_projects/new.html.haml

@@ -68,6 +68,13 @@
               %p.form-text.text-muted.gl-text-center{ class: 'gl-mb-5!' }
                 = _('You can always change your URL later')
 
+              .form-group
+                .form-check.gl-mb-3
+                  = check_box_tag 'project[initialize_with_readme]', '1', true, class: 'form-check-input'
+                  = label_tag 'project[initialize_with_readme]', s_('ProjectsNew|Include a Getting Started README'), class: 'form-check-label'
+                  .form-text.text-muted
+                    = s_('ProjectsNew|Recommended if you\'re new to GitLab')
+
               = submit_tag _('Create project'), class: 'btn gl-button btn-confirm btn-block', data: { track_label: 'blank_project', track_action: 'click_button', track_property: 'create_project', track_value: '' }
 
           #import-project-pane.tab-pane.import-project-pane.js-toggle-container{ role: 'tabpanel' }

ee/spec/controllers/registrations/groups_projects_controller_spec.rb

@@ -63,7 +63,7 @@ RSpec.describe Registrations::GroupsProjectsController, :experiment do
     let(:params) { { group: group_params, project: project_params }.merge(extra_params) }
     let(:extra_params) { {} }
     let(:group_params) { { name: 'Group name', path: 'group-path', visibility_level: Gitlab::VisibilityLevel::PRIVATE.to_s, setup_for_company: setup_for_company } }
-    let(:project_params) { { name: 'New project', path: 'project-path', visibility_level: Gitlab::VisibilityLevel::PRIVATE } }
+    let(:project_params) { { name: 'New project', path: 'project-path', visibility_level: Gitlab::VisibilityLevel::PRIVATE, initialize_with_readme: 'true' } }
     let(:dev_env_or_com) { true }
     let(:setup_for_company) { nil }
     let(:combined_registration?) { true }
@@ -94,6 +94,17 @@ RSpec.describe Registrations::GroupsProjectsController, :experiment do
           post_create
         end
 
+        it 'allows for the project to be initialized with a README' do
+          allow(::Projects::CreateService).to receive(:new).and_call_original # a learn gitlab project is created too
+
+          expect(::Projects::CreateService).to receive(:new).with(
+            user,
+            an_object_satisfying { |permitted| permitted.include?(:initialize_with_readme) }
+          )
+
+          post_create
+        end
+
         it 'tracks create events for the combined_registration experiment' do
           allow_next_instance_of(::Projects::CreateService) do |service|
             allow(service).to receive(:after_create_actions)

locale/gitlab.pot

@@ -29152,6 +29152,9 @@ msgstr ""
 msgid "ProjectsNew|Import project"
 msgstr ""
 
+msgid "ProjectsNew|Include a Getting Started README"
+msgstr ""
+
 msgid "ProjectsNew|Initialize repository with a README"
 msgstr ""
 
@@ -29167,6 +29170,9 @@ msgstr ""
 msgid "ProjectsNew|Project description %{tag_start}(optional)%{tag_end}"
 msgstr ""
 
+msgid "ProjectsNew|Recommended if you're new to GitLab"
+msgstr ""
+
 msgid "ProjectsNew|Run CI/CD for external repository"
 msgstr ""