Enable Productivity Analytics feature

This MR turns on the productivity_analytics feature flag by default.

ee/app/controllers/analytics/application_controller.rb

@@ -8,7 +8,7 @@ class Analytics::ApplicationController < ApplicationController
   private
 
   def self.check_feature_flag(flag, *args)
-    before_action(*args) { render_404 unless Feature.enabled?(flag) }
+    before_action(*args) { render_404 unless Feature.enabled?(flag, default_enabled: Gitlab::Analytics.feature_enabled_by_default?(flag)) }
   end
 
   def self.increment_usage_counter(counter_klass, counter, *args)

ee/changelogs/unreleased/enable-pa-ff-by-default.yml

+---
+title: Enable Productivity Analytics feature by default
+merge_request: 18754
+author:
+type: changed

ee/lib/gitlab/analytics.rb

@@ -15,8 +15,12 @@ module Gitlab
       TASKS_BY_TYPE_CHART_FEATURE_FLAG
     ].freeze
 
+    FEATURE_FLAG_DEFAULTS = {
+      PRODUCTIVITY_ANALYTICS_FEATURE_FLAG => true
+    }.freeze
+
     def self.any_features_enabled?
-      FEATURE_FLAGS.any? { |flag| Feature.enabled?(flag) }
+      FEATURE_FLAGS.any? { |flag| Feature.enabled?(flag, default_enabled: feature_enabled_by_default?(flag)) }
     end
 
     def self.code_analytics_enabled?
@@ -28,7 +32,11 @@ module Gitlab
     end
 
     def self.productivity_analytics_enabled?
-      Feature.enabled?(PRODUCTIVITY_ANALYTICS_FEATURE_FLAG)
+      Feature.enabled?(PRODUCTIVITY_ANALYTICS_FEATURE_FLAG, default_enabled: feature_enabled_by_default?(PRODUCTIVITY_ANALYTICS_FEATURE_FLAG))
+    end
+
+    def self.feature_enabled_by_default?(flag)
+      !!FEATURE_FLAG_DEFAULTS[flag]
     end
   end
 end

ee/spec/lib/gitlab/analytics_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::Analytics do
+  describe '.productivity_analytics_enabled?' do
+    it 'is enabled by default' do
+      expect(described_class).to be_productivity_analytics_enabled
+    end
+  end
+end