Track projects using code intelligence

We need to track the usage of code intelligence.

The authorize endpoint is called by workhorse to determine if it
needs to parse LSIF which is needed for code intelligence feature
to work.

This adds tracking of `i_source_code_code_intelligence` event
whenever it's determined that we are parsing LSIF. Uses the HLL
counter so we get distinct count of projects.

app/services/ci/create_job_artifacts_service.rb

@@ -2,6 +2,8 @@
 
 module Ci
   class CreateJobArtifactsService < ::BaseService
+    include Gitlab::Utils::UsageData
+
     ArtifactsExistError = Class.new(StandardError)
 
     LSIF_ARTIFACT_TYPE = 'lsif'
@@ -22,7 +24,11 @@ module Ci
       return result unless result[:status] == :success
 
       headers = JobArtifactUploader.workhorse_authorize(has_length: false, maximum_size: max_size(artifact_type))
-      headers[:ProcessLsif] = lsif?(artifact_type)
+
+      if lsif?(artifact_type)
+        headers[:ProcessLsif] = true
+        track_usage_event('i_source_code_code_intelligence', project)
+      end
 
       success(headers: headers)
     end

changelogs/unreleased/237793-code-intelligence-usage-ping.yml

+---
+title: Track projects using code intelligence
+merge_request: 41881
+author:
+type: added

lib/gitlab/usage_data_counters/known_events.yml

@@ -116,6 +116,10 @@
 - name: merge_request_action
   category: source_code
   aggregation: daily
+- name: i_source_code_code_intelligence
+  redis_slot: source_code
+  category: source_code
+  aggregation: daily
 # Incident management
 - name: incident_management_alert_status_changed
   redis_slot: incident_management

spec/requests/api/ci/runner/jobs_artifacts_spec.rb

@@ -238,9 +238,24 @@ RSpec.describe API::Ci::Runner, :clean_gitlab_redis_shared_state do
             expect(json_response['ProcessLsif']).to be_truthy
           end
 
+          it 'tracks code_intelligence usage ping' do
+            tracking_params = {
+              event_names: 'i_source_code_code_intelligence',
+              start_date: Date.yesterday,
+              end_date: Date.today
+            }
+
+            expect { authorize_artifacts_with_token_in_headers(artifact_type: :lsif) }
+              .to change { Gitlab::UsageDataCounters::HLLRedisCounter.unique_events(tracking_params) }
+              .by(1)
+          end
+
           context 'code_navigation feature flag is disabled' do
-            it 'responds with a forbidden error' do
+            before do
               stub_feature_flags(code_navigation: false)
+            end
+
+            it 'responds with a forbidden error' do
               authorize_artifacts_with_token_in_headers(artifact_type: :lsif)
 
               aggregate_failures do
@@ -248,6 +263,17 @@ RSpec.describe API::Ci::Runner, :clean_gitlab_redis_shared_state do
                 expect(json_response['ProcessLsif']).to be_falsy
               end
             end
+
+            it 'does not track code_intelligence usage ping' do
+              tracking_params = {
+                event_names: 'i_source_code_code_intelligence',
+                start_date: Date.yesterday,
+                end_date: Date.today
+              }
+
+              expect { authorize_artifacts_with_token_in_headers(artifact_type: :lsif) }
+                .not_to change { Gitlab::UsageDataCounters::HLLRedisCounter.unique_events(tracking_params) }
+            end
           end
         end