diff --git a/.gitlab/CODEOWNERS b/.gitlab/CODEOWNERS
index df81d05eec1..ea4feb3552e 100644
--- a/.gitlab/CODEOWNERS
+++ b/.gitlab/CODEOWNERS
@@ -173,7 +173,7 @@
 /.gitlab/CODEOWNERS @gl-quality/eng-prod
 Dangerfile @gl-quality/eng-prod
 /danger/ @gl-quality/eng-prod
-/lib/gitlab/danger/ @gl-quality/eng-prod
+/tooling/danger/ @gl-quality/eng-prod
 /scripts/ @gl-quality/eng-prod
 /scripts/frontend/ @gl-quality/eng-prod @gitlab-org/maintainers/frontend
 /scripts/review_apps/seed-dast-test-data.sh @dappelt @ngeorge1 @gl-quality/eng-prod
diff --git a/.gitlab/ci/rails.gitlab-ci.yml b/.gitlab/ci/rails.gitlab-ci.yml
index a2a16424f4a..6de8cdfd9b0 100644
--- a/.gitlab/ci/rails.gitlab-ci.yml
+++ b/.gitlab/ci/rails.gitlab-ci.yml
@@ -433,6 +433,8 @@ rspec:deprecations:
   variables:
     SETUP_DB: "false"
   script:
+    - grep -h -R "keyword" deprecations/ | awk '{$1=$1};1' | sort | uniq -c | sort
+    - grep -R "keyword" deprecations/ | wc
     - run_timed_command "bundle exec rubocop --only Lint/LastKeywordArgument --parallel"
   artifacts:
     expire_in: 31d
diff --git a/.rubocop.yml b/.rubocop.yml
index 4a0cd9579e6..7a4b53b5aa5 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -78,21 +78,7 @@ Style/AccessModifierDeclarations:
 # Frozen String Literal
 Style/FrozenStringLiteralComment:
   Enabled: true
-  Exclude:
-    - 'config.ru'
-    - 'Dangerfile'
-    - 'Gemfile'
-    - 'Rakefile'
-    - 'app/views/**/*'
-    - 'config/**/*'
-    - 'danger/**/*'
-    - 'db/**/*'
-    - 'ee/db/**/*'
-    - 'ee/lib/tasks/**/*'
-    - 'lib/tasks/**/*'
-    - 'qa/**/*'
-    - 'rubocop/**/*'
-    - 'scripts/**/*'
+  EnforcedStyle: always_true
 
 RSpec/FilePath:
   Exclude:
@@ -256,7 +242,7 @@ Gitlab/Json:
     - 'scripts/**/*'
     - 'lib/rspec_flaky/**/*'
     - 'lib/quality/**/*'
-    - 'lib/gitlab/danger/**/*'
+    - 'tooling/danger/**/*'
 
 Gitlab/AvoidUploadedFileFromParams:
   Enabled: true
diff --git a/.rubocop_manual_todo.yml b/.rubocop_manual_todo.yml
index dc8aee88665..d88d705a012 100644
--- a/.rubocop_manual_todo.yml
+++ b/.rubocop_manual_todo.yml
@@ -2721,3 +2721,315 @@ Gitlab/NamespacedClass:
     - 'spec/support/sidekiq_middleware.rb'
     - 'spec/tasks/gitlab/task_helpers_spec.rb'
     - 'spec/uploaders/object_storage_spec.rb'
+
+# WIP: https://gitlab.com/gitlab-org/gitlab/-/issues/299105
+Style/FrozenStringLiteralComment:
+  Exclude:
+    - 'Gemfile'
+    - 'Rakefile'
+    - 'app/views/dashboard/issues.atom.builder'
+    - 'app/views/dashboard/projects/index.atom.builder'
+    - 'app/views/events/_event.atom.builder'
+    - 'app/views/groups/issues.atom.builder'
+    - 'app/views/groups/show.atom.builder'
+    - 'app/views/issues/_issue.atom.builder'
+    - 'app/views/issues/_issues_calendar.ics.ruby'
+    - 'app/views/layouts/xml.atom.builder'
+    - 'app/views/projects/commits/_commit.atom.builder'
+    - 'app/views/projects/commits/show.atom.builder'
+    - 'app/views/projects/issues/index.atom.builder'
+    - 'app/views/projects/show.atom.builder'
+    - 'app/views/projects/tags/_tag.atom.builder'
+    - 'app/views/projects/tags/index.atom.builder'
+    - 'app/views/users/show.atom.builder'
+    - 'bin/secpick'
+    - 'config.ru'
+    - 'config/boot.rb'
+    - 'config/environment.rb'
+    - 'config/environments/development.rb'
+    - 'config/environments/production.rb'
+    - 'config/environments/test.rb'
+    - 'config/initializers/01_secret_token.rb'
+    - 'config/initializers/0_acts_as_taggable.rb'
+    - 'config/initializers/0_inject_feature_flags.rb'
+    - 'config/initializers/0_post_deployment_migrations.rb'
+    - 'config/initializers/1_settings.rb'
+    - 'config/initializers/2_gitlab.rb'
+    - 'config/initializers/5_backend.rb'
+    - 'config/initializers/6_validations.rb'
+    - 'config/initializers/7_prometheus_metrics.rb'
+    - 'config/initializers/7_redis.rb'
+    - 'config/initializers/8_devise.rb'
+    - 'config/initializers/8_gitaly.rb'
+    - 'config/initializers/9_fast_gettext.rb'
+    - 'config/initializers/action_dispatch_http_mime_negotiation.rb'
+    - 'config/initializers/action_mailer_hooks.rb'
+    - 'config/initializers/active_record_data_types.rb'
+    - 'config/initializers/active_record_ping.rb'
+    - 'config/initializers/active_record_preloader.rb'
+    - 'config/initializers/active_record_schema_ignore_tables.rb'
+    - 'config/initializers/active_record_table_definition.rb'
+    - 'config/initializers/ar_speed_up_migration_checking.rb'
+    - 'config/initializers/asset_proxy_settings.rb'
+    - 'config/initializers/attr_encrypted_no_db_connection.rb'
+    - 'config/initializers/backtrace_silencers.rb'
+    - 'config/initializers/batch_loader.rb'
+    - 'config/initializers/bootstrap_form.rb'
+    - 'config/initializers/bullet.rb'
+    - 'config/initializers/cluster_events_before_phased_restart.rb'
+    - 'config/initializers/console_message.rb'
+    - 'config/initializers/cookies_serializer.rb'
+    - 'config/initializers/date_time_formats.rb'
+    - 'config/initializers/default_url_options.rb'
+    - 'config/initializers/deprecations.rb'
+    - 'config/initializers/direct_upload_support.rb'
+    - 'config/initializers/doorkeeper.rb'
+    - 'config/initializers/doorkeeper_openid_connect.rb'
+    - 'config/initializers/etag_caching.rb'
+    - 'config/initializers/fill_shards.rb'
+    - 'config/initializers/fix_local_cache_middleware.rb'
+    - 'config/initializers/fog_google_https_private_urls.rb'
+    - 'config/initializers/forbid_sidekiq_in_transactions.rb'
+    - 'config/initializers/gettext_rails_i18n_patch.rb'
+    - 'config/initializers/gitlab_kas_secret.rb'
+    - 'config/initializers/gitlab_shell_secret_token.rb'
+    - 'config/initializers/gitlab_workhorse_secret.rb'
+    - 'config/initializers/go_get.rb'
+    - 'config/initializers/grpc.rb'
+    - 'config/initializers/hamlit.rb'
+    - 'config/initializers/health_check.rb'
+    - 'config/initializers/http_hostname_override.rb'
+    - 'config/initializers/kaminari_active_record_relation_methods_with_limit.rb'
+    - 'config/initializers/kaminari_config.rb'
+    - 'config/initializers/lograge.rb'
+    - 'config/initializers/mail_encoding_patch.rb'
+    - 'config/initializers/mime_types.rb'
+    - 'config/initializers/mini_magick.rb'
+    - 'config/initializers/new_framework_defaults.rb'
+    - 'config/initializers/octokit.rb'
+    - 'config/initializers/omniauth.rb'
+    - 'config/initializers/peek.rb'
+    - 'config/initializers/postgresql_cte.rb'
+    - 'config/initializers/premailer.rb'
+    - 'config/initializers/query_limiting.rb'
+    - 'config/initializers/rack_lineprof.rb'
+    - 'config/initializers/relative_naming_ci_namespace.rb'
+    - 'config/initializers/request_context.rb'
+    - 'config/initializers/request_profiler.rb'
+    - 'config/initializers/routing_draw.rb'
+    - 'config/initializers/sentry.rb'
+    - 'config/initializers/server_uptime.rb'
+    - 'config/initializers/session_store.rb'
+    - 'config/initializers/sherlock.rb'
+    - 'config/initializers/sprockets.rb'
+    - 'config/initializers/static_files.rb'
+    - 'config/initializers/time_zone.rb'
+    - 'config/initializers/trusted_proxies.rb'
+    - 'config/initializers/warden.rb'
+    - 'config/initializers/workhorse_multipart.rb'
+    - 'config/initializers/wrap_parameters.rb'
+    - 'config/initializers/zz_metrics.rb'
+    - 'config/initializers_before_autoloader/000_inflections.rb'
+    - 'config/object_store_settings.rb'
+    - 'config/routes.rb'
+    - 'config/routes/admin.rb'
+    - 'config/routes/api.rb'
+    - 'config/routes/dashboard.rb'
+    - 'config/routes/development.rb'
+    - 'config/routes/explore.rb'
+    - 'config/routes/git_http.rb'
+    - 'config/routes/google_api.rb'
+    - 'config/routes/help.rb'
+    - 'config/routes/import.rb'
+    - 'config/routes/legacy_builds.rb'
+    - 'config/routes/repository.rb'
+    - 'config/routes/sherlock.rb'
+    - 'config/routes/sidekiq.rb'
+    - 'config/routes/snippets.rb'
+    - 'config/routes/uploads.rb'
+    - 'config/routes/wiki.rb'
+    - 'config/smime_signature_settings.rb'
+    - 'config/spring.rb'
+    - 'danger/changes_size/Dangerfile'
+    - 'danger/metadata/Dangerfile'
+    - 'db/migrate/20190325080727_truncate_user_fullname.rb'
+    - 'db/migrate/20190828110802_add_not_null_constraints_to_prometheus_metrics_y_label_and_unit.rb'
+    - 'db/migrate/20190828172831_create_package_tag.rb'
+    - 'db/migrate/20191003195218_add_pendo_enabled_to_application_settings.rb'
+    - 'db/migrate/20191003195620_add_pendo_url_to_application_settings.rb'
+    - 'db/migrate/20191120200015_add_index_to_grafana_integrations.rb'
+    - 'db/migrate/20200229171700_create_custom_emojis.rb'
+    - 'db/migrate/20201004163918_remove_project_id_and_id_index_from_vulnerabilities_table.rb'
+    - 'db/migrate/20201214000000_change_mr_allow_maintainer_to_push_default.rb'
+    - 'db/optional_migrations/composite_primary_keys.rb'
+    - 'db/post_migrate/20190214112022_schedule_sync_issuables_state_id.rb'
+    - 'db/post_migrate/20201030121314_schedule_update_existing_users_that_require_two_factor_auth.rb'
+    - 'ee/db/fixtures/development/20_burndown.rb'
+    - 'ee/db/fixtures/development/20_vulnerabilities.rb'
+    - 'ee/db/fixtures/development/22_epics.rb'
+    - 'ee/db/geo/migrate/20170206203234_create_project_registry.rb'
+    - 'ee/db/geo/migrate/20170223033541_create_file_registry.rb'
+    - 'ee/db/geo/migrate/20170302005747_add_index_to_project_id_on_project_registry.rb'
+    - 'ee/db/geo/migrate/20170526214010_convert_file_bytes_to_int64.rb'
+    - 'ee/db/geo/migrate/20170605154253_create_event_log_state.rb'
+    - 'ee/db/geo/migrate/20170606155045_add_needs_resync_to_project_registry.rb'
+    - 'ee/db/geo/migrate/20170614201943_add_last_wiki_synced_at_to_project_registry.rb'
+    - 'ee/db/geo/migrate/20170627195211_add_index_to_project_registry.rb'
+    - 'ee/db/geo/migrate/20170906174622_remove_duplicates_from_project_registry.rb'
+    - 'ee/db/geo/migrate/20170906182752_add_unique_index_to_project_id_on_project_registry.rb'
+    - 'ee/db/geo/migrate/20171005045404_remove_file_uploads_from_registry.rb'
+    - 'ee/db/geo/migrate/20171009162208_add_file_registry_success.rb'
+    - 'ee/db/geo/migrate/20171009162209_add_file_registry_success_index.rb'
+    - 'ee/db/geo/migrate/20171101105200_add_retry_count_fields_to_registries.rb'
+    - 'ee/db/geo/migrate/20171115143841_add_last_sync_failure_to_project_registry.rb'
+    - 'ee/db/geo/migrate/20180201154345_add_repository_verification_to_project_registry.rb'
+    - 'ee/db/geo/migrate/20180314175612_add_partial_index_to_project_registy_verification_failure_columns.rb'
+    - 'ee/db/geo/migrate/20180315222132_add_partial_index_to_project_registy_checksum_columns.rb'
+    - 'ee/db/geo/migrate/20180321144947_change_repository_verification_checksum_to_sha.rb'
+    - 'ee/db/geo/migrate/20180322062741_migrate_ci_job_artifacts_to_separate_registry.rb'
+    - 'ee/db/geo/migrate/20180323182105_add_missing_on_primary_to_file_registry.rb'
+    - 'ee/db/geo/migrate/20180327071612_add_partial_index_to_project_registy_checksum_sha_columns.rb'
+    - 'ee/db/geo/migrate/20180402170913_add_missing_on_primary_to_job_artifact_registry..rb'
+    - 'ee/db/geo/migrate/20180405074130_add_partial_index_project_repository_verification.rb'
+    - 'ee/db/geo/migrate/20180412213305_add_index_to_artifact_id_on_job_artifact_registry.rb'
+    - 'ee/db/geo/migrate/20180419174834_add_checksum_mismatch_fields_to_project_registry.rb'
+    - 'ee/db/geo/migrate/20180419192603_add_indexes_to_checksum_mismatch_fields_on_project_registry.rb'
+    - 'ee/db/geo/migrate/20180427114641_add_repository_check_to_geo_project_registry.rb'
+    - 'ee/db/geo/migrate/20180510223634_set_resync_flag_for_retried_projects.rb'
+    - 'ee/db/geo/migrate/20180613184349_add_resync_was_scheduled_at_to_project_registry.rb'
+    - 'ee/db/geo/post_migrate/20180320011914_remove_last_verification_failed_columns_from_geo_project_registry.rb'
+    - 'ee/db/geo/post_migrate/20180320013929_remove_last_verification_at_columns_from_geo_project_registry.rb'
+    - 'ee/db/geo/post_migrate/20180326171626_remove_old_repository_verification_checksum_from_geo_project_registry.rb'
+    - 'ee/db/geo/post_migrate/20180331055706_delete_job_artifacts_from_file_registry.rb'
+    - 'ee/lib/tasks/geo.rake'
+    - 'ee/lib/tasks/geo/git.rake'
+    - 'ee/lib/tasks/geo/replication.rake'
+    - 'ee/lib/tasks/gitlab/db.rake'
+    - 'ee/lib/tasks/gitlab/elastic.rake'
+    - 'ee/lib/tasks/gitlab/elastic/test.rake'
+    - 'ee/lib/tasks/gitlab/geo.rake'
+    - 'ee/lib/tasks/gitlab/indexer.rake'
+    - 'ee/lib/tasks/gitlab/ldap.rake'
+    - 'ee/lib/tasks/gitlab/seed/insights.rake'
+    - 'ee/lib/tasks/gitlab/seed/metrics.rake'
+    - 'ee/lib/tasks/migrate/ldap.rake'
+    - 'lib/tasks/brakeman.rake'
+    - 'lib/tasks/cache.rake'
+    - 'lib/tasks/ci/cleanup.rake'
+    - 'lib/tasks/cleanup.rake'
+    - 'lib/tasks/config_lint.rake'
+    - 'lib/tasks/db_obsolete_ignored_columns.rake'
+    - 'lib/tasks/dev.rake'
+    - 'lib/tasks/downtime_check.rake'
+    - 'lib/tasks/eslint.rake'
+    - 'lib/tasks/file_hooks.rake'
+    - 'lib/tasks/frontend.rake'
+    - 'lib/tasks/gemojione.rake'
+    - 'lib/tasks/gitlab/artifacts/check.rake'
+    - 'lib/tasks/gitlab/artifacts/migrate.rake'
+    - 'lib/tasks/gitlab/backup.rake'
+    - 'lib/tasks/gitlab/bulk_add_permission.rake'
+    - 'lib/tasks/gitlab/check.rake'
+    - 'lib/tasks/gitlab/container_registry.rake'
+    - 'lib/tasks/gitlab/db.rake'
+    - 'lib/tasks/gitlab/doctor/secrets.rake'
+    - 'lib/tasks/gitlab/exclusive_lease.rake'
+    - 'lib/tasks/gitlab/external_diffs.rake'
+    - 'lib/tasks/gitlab/features.rake'
+    - 'lib/tasks/gitlab/generate_sample_prometheus_data.rake'
+    - 'lib/tasks/gitlab/git.rake'
+    - 'lib/tasks/gitlab/gitaly.rake'
+    - 'lib/tasks/gitlab/helpers.rake'
+    - 'lib/tasks/gitlab/import.rake'
+    - 'lib/tasks/gitlab/import_export.rake'
+    - 'lib/tasks/gitlab/info.rake'
+    - 'lib/tasks/gitlab/ldap.rake'
+    - 'lib/tasks/gitlab/lfs/check.rake'
+    - 'lib/tasks/gitlab/lfs/migrate.rake'
+    - 'lib/tasks/gitlab/list_repos.rake'
+    - 'lib/tasks/gitlab/packages/events.rake'
+    - 'lib/tasks/gitlab/packages/migrate.rake'
+    - 'lib/tasks/gitlab/pages.rake'
+    - 'lib/tasks/gitlab/praefect.rake'
+    - 'lib/tasks/gitlab/seed.rake'
+    - 'lib/tasks/gitlab/setup.rake'
+    - 'lib/tasks/gitlab/shell.rake'
+    - 'lib/tasks/gitlab/storage.rake'
+    - 'lib/tasks/gitlab/tcp_check.rake'
+    - 'lib/tasks/gitlab/test.rake'
+    - 'lib/tasks/gitlab/two_factor.rake'
+    - 'lib/tasks/gitlab/update_templates.rake'
+    - 'lib/tasks/gitlab/uploads/check.rake'
+    - 'lib/tasks/gitlab/uploads/migrate.rake'
+    - 'lib/tasks/gitlab/uploads/sanitize.rake'
+    - 'lib/tasks/gitlab/usage_data.rake'
+    - 'lib/tasks/gitlab/user_management.rake'
+    - 'lib/tasks/gitlab/web_hook.rake'
+    - 'lib/tasks/gitlab/workhorse.rake'
+    - 'lib/tasks/gitlab/x509/update.rake'
+    - 'lib/tasks/gitlab_danger.rake'
+    - 'lib/tasks/grape.rake'
+    - 'lib/tasks/haml-lint.rake'
+    - 'lib/tasks/import.rake'
+    - 'lib/tasks/karma.rake'
+    - 'lib/tasks/lint.rake'
+    - 'lib/tasks/migrate/composite_primary_keys.rake'
+    - 'lib/tasks/migrate/migrate_iids.rake'
+    - 'lib/tasks/migrate/setup_postgresql.rake'
+    - 'lib/tasks/pngquant.rake'
+    - 'lib/tasks/rubocop.rake'
+    - 'lib/tasks/scss-lint.rake'
+    - 'lib/tasks/setup.rake'
+    - 'lib/tasks/test.rake'
+    - 'lib/tasks/tokens.rake'
+    - 'qa/Gemfile'
+    - 'qa/Rakefile'
+    - 'qa/bin/qa'
+    - 'qa/bin/rubymine'
+    - 'qa/qa/fixtures/auto_devops_rack/Gemfile'
+    - 'qa/qa/fixtures/auto_devops_rack/Rakefile'
+    - 'qa/qa/fixtures/auto_devops_rack/config.ru'
+    - 'qa/qa/page/page_concern.rb'
+    - 'rubocop/cop/avoid_keyword_arguments_in_sidekiq_workers.rb'
+    - 'rubocop/cop/gitlab/finder_with_find_by.rb'
+    - 'rubocop/cop/gitlab/keys-first-and-values-first.rb'
+    - 'rubocop/cop/gitlab/module_with_instance_variables.rb'
+    - 'rubocop/cop/gitlab/predicate_memoization.rb'
+    - 'rubocop/cop/migration/add_concurrent_foreign_key.rb'
+    - 'rubocop/cop/migration/add_concurrent_index.rb'
+    - 'rubocop/cop/migration/add_index.rb'
+    - 'rubocop/cop/migration/add_timestamps.rb'
+    - 'rubocop/cop/migration/datetime.rb'
+    - 'rubocop/cop/migration/hash_index.rb'
+    - 'rubocop/cop/migration/remove_column.rb'
+    - 'rubocop/cop/migration/remove_concurrent_index.rb'
+    - 'rubocop/cop/migration/remove_index.rb'
+    - 'rubocop/cop/migration/safer_boolean_column.rb'
+    - 'rubocop/cop/migration/timestamps.rb'
+    - 'rubocop/cop/migration/update_column_in_batches.rb'
+    - 'rubocop/cop/project_path_helper.rb'
+    - 'rubocop/migration_helpers.rb'
+    - 'rubocop/qa_helpers.rb'
+    - 'scripts/flaky_examples/detect-new-flaky-examples'
+    - 'scripts/flaky_examples/prune-old-flaky-examples'
+    - 'scripts/gather-test-memory-data'
+    - 'scripts/generate-gems-memory-metrics-static'
+    - 'scripts/generate-gems-size-metrics-static'
+    - 'scripts/generate-memory-metrics-on-boot'
+    - 'scripts/generate-test-mapping'
+    - 'scripts/gitaly-test-build'
+    - 'scripts/gitaly-test-spawn'
+    - 'scripts/gitaly_test.rb'
+    - 'scripts/insert-rspec-profiling-data'
+    - 'scripts/lint-rugged'
+    - 'scripts/merge-html-reports'
+    - 'scripts/merge-reports'
+    - 'scripts/merge-simplecov'
+    - 'scripts/no-ee-check'
+    - 'scripts/pack-test-mapping'
+    - 'scripts/static-analysis'
+    - 'scripts/sync-reports'
+    - 'scripts/unpack-test-mapping'
+    - 'scripts/update-feature-categories'
+    - 'scripts/used-feature-flags'
+    - 'scripts/verify-tff-mapping'
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index d60ab9b2fcc..92f4414d815 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -141,7 +141,7 @@ Lint/BinaryOperatorWithIdenticalOperands:
     - 'ee/spec/lib/ee/gitlab/application_context_spec.rb'
     - 'spec/helpers/visibility_level_helper_spec.rb'
     - 'spec/lib/gitlab/conan_token_spec.rb'
-    - 'spec/lib/gitlab/danger/sidekiq_queues_spec.rb'
+    - 'spec/tooling/danger/sidekiq_queues_spec.rb'
     - 'spec/lib/gitlab/git/conflict/parser_spec.rb'
     - 'spec/lib/gitlab/graphql/lazy_spec.rb'
     - 'spec/models/ci/build_trace_chunk_spec.rb'
@@ -185,8 +185,8 @@ Lint/EmptyFile:
 # Cop supports --auto-correct.
 Lint/IdentityComparison:
   Exclude:
-    - 'spec/lib/gitlab/danger/weightage/maintainers_spec.rb'
-    - 'spec/lib/gitlab/danger/weightage/reviewers_spec.rb'
+    - 'spec/tooling/danger/weightage/maintainers_spec.rb'
+    - 'spec/tooling/danger/weightage/reviewers_spec.rb'
 
 # Offense count: 184
 # Configuration parameters: MaximumRangeSize.
@@ -263,7 +263,7 @@ Metrics/CyclomaticComplexity:
     - 'lib/banzai/filter/abstract_reference_filter.rb'
     - 'lib/declarative_policy/runner.rb'
     - 'lib/gitlab/conflict/file.rb'
-    - 'lib/gitlab/danger/roulette.rb'
+    - 'tooling/danger/roulette.rb'
     - 'lib/gitlab/diff/parser.rb'
     - 'lib/gitlab/rack_attack.rb'
     - 'lib/gitlab/sidekiq_cluster/cli.rb'
@@ -285,7 +285,7 @@ Metrics/PerceivedComplexity:
     - 'lib/banzai/renderer.rb'
     - 'lib/declarative_policy/runner.rb'
     - 'lib/gitlab/conflict/file.rb'
-    - 'lib/gitlab/danger/roulette.rb'
+    - 'tooling/danger/roulette.rb'
     - 'lib/gitlab/rack_attack.rb'
     - 'lib/gitlab/sidekiq_cluster/cli.rb'
     - 'lib/gitlab/utils/merge_hash.rb'
@@ -629,7 +629,7 @@ Rails/IndexBy:
     - 'ee/lib/gitlab/analytics/type_of_work/tasks_by_type.rb'
     - 'ee/lib/gitlab/elastic/document_reference.rb'
     - 'ee/lib/gitlab/group_plans_preloader.rb'
-    - 'lib/gitlab/danger/sidekiq_queues.rb'
+    - 'tooling/danger/sidekiq_queues.rb'
     - 'lib/gitlab/database/count/reltuples_count_strategy.rb'
     - 'lib/gitlab/language_detection.rb'
 
diff --git a/Dangerfile b/Dangerfile
index cba7226d4b9..103e38fdd33 100644
--- a/Dangerfile
+++ b/Dangerfile
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
-require_relative 'lib/gitlab_danger'
-require_relative 'lib/gitlab/danger/request_helper'
+require_relative 'tooling/gitlab_danger'
+require_relative 'tooling/danger/request_helper'
 
 danger.import_plugin('danger/plugins/helper.rb')
 danger.import_plugin('danger/plugins/roulette.rb')
diff --git a/app/assets/javascripts/packages_and_registries/settings/group/bundle.js b/app/assets/javascripts/packages_and_registries/settings/group/bundle.js
index a3d507180c6..b2ff75fe1bd 100644
--- a/app/assets/javascripts/packages_and_registries/settings/group/bundle.js
+++ b/app/assets/javascripts/packages_and_registries/settings/group/bundle.js
@@ -1,5 +1,6 @@
 import Vue from 'vue';
 import Translate from '~/vue_shared/translate';
+import { parseBoolean } from '~/lib/utils/common_utils';
 import SettingsApp from './components/group_settings_app.vue';
 import { apolloProvider } from './graphql';
 
@@ -13,6 +14,10 @@ export default () => {
   return new Vue({
     el,
     apolloProvider,
+    provide: {
+      defaultExpanded: parseBoolean(el.dataset.defaultExpanded),
+      groupPath: el.dataset.groupPath,
+    },
     render(createElement) {
       return createElement(SettingsApp);
     },
diff --git a/app/assets/javascripts/packages_and_registries/settings/group/components/group_settings_app.vue b/app/assets/javascripts/packages_and_registries/settings/group/components/group_settings_app.vue
index 6bcecf43a13..31abdc730f8 100644
--- a/app/assets/javascripts/packages_and_registries/settings/group/components/group_settings_app.vue
+++ b/app/assets/javascripts/packages_and_registries/settings/group/components/group_settings_app.vue
@@ -1,9 +1,75 @@
 <script>
+import { GlSprintf, GlLink } from '@gitlab/ui';
+import SettingsBlock from '~/vue_shared/components/settings/settings_block.vue';
+
+import {
+  PACKAGE_SETTINGS_HEADER,
+  PACKAGE_SETTINGS_DESCRIPTION,
+  PACKAGES_DOCS_PATH,
+} from '../constants';
+import getGroupPackagesSettingsQuery from '../graphql/queries/get_group_packages_settings.query.graphql';
+
 export default {
   name: 'GroupSettingsApp',
+  i18n: {
+    PACKAGE_SETTINGS_HEADER,
+    PACKAGE_SETTINGS_DESCRIPTION,
+  },
+  links: {
+    PACKAGES_DOCS_PATH,
+  },
+  components: {
+    GlSprintf,
+    GlLink,
+    SettingsBlock,
+  },
+  inject: {
+    defaultExpanded: {
+      type: Boolean,
+      default: false,
+      required: true,
+    },
+    groupPath: {
+      type: String,
+      required: true,
+    },
+  },
+  apollo: {
+    packageSettings: {
+      query: getGroupPackagesSettingsQuery,
+      variables() {
+        return {
+          fullPath: this.groupPath,
+        };
+      },
+      update(data) {
+        return data.group?.packageSettings;
+      },
+    },
+  },
+  data() {
+    return {
+      packageSettings: {},
+    };
+  },
 };
 </script>
 
 <template>
-  <section></section>
+  <div>
+    <settings-block :default-expanded="defaultExpanded">
+      <template #title> {{ $options.i18n.PACKAGE_SETTINGS_HEADER }}</template>
+      <template #description>
+        <span data-testid="description">
+          <gl-sprintf :message="$options.i18n.PACKAGE_SETTINGS_DESCRIPTION">
+            <template #link="{ content }">
+              <gl-link :href="$options.links.PACKAGES_DOCS_PATH" target="_blank">{{
+                content
+              }}</gl-link>
+            </template>
+          </gl-sprintf>
+        </span>
+      </template>
+    </settings-block>
+  </div>
 </template>
diff --git a/app/assets/javascripts/packages_and_registries/settings/group/constants.js b/app/assets/javascripts/packages_and_registries/settings/group/constants.js
new file mode 100644
index 00000000000..b0c4bf821f9
--- /dev/null
+++ b/app/assets/javascripts/packages_and_registries/settings/group/constants.js
@@ -0,0 +1,9 @@
+import { s__ } from '~/locale';
+import { helpPagePath } from '~/helpers/help_page_helper';
+
+export const PACKAGE_SETTINGS_HEADER = s__('PackageRegistry|Package Registry');
+export const PACKAGE_SETTINGS_DESCRIPTION = s__(
+  'PackageRegistry|GitLab Packages allows organizations to utilize GitLab as a private repository for a variety of common package formats. %{linkStart}More Information%{linkEnd}',
+);
+
+export const PACKAGES_DOCS_PATH = helpPagePath('user/packages');
diff --git a/app/assets/javascripts/packages_and_registries/settings/group/graphql/mutations/update_group_packages_settings.mutation.graphql b/app/assets/javascripts/packages_and_registries/settings/group/graphql/mutations/update_group_packages_settings.mutation.graphql
new file mode 100644
index 00000000000..1fc59bd3496
--- /dev/null
+++ b/app/assets/javascripts/packages_and_registries/settings/group/graphql/mutations/update_group_packages_settings.mutation.graphql
@@ -0,0 +1,9 @@
+mutation updateNamespacePackageSettings($input: UpdateNamespacePackageSettingsInput!) {
+  updateNamespacePackageSettings(input: $input) {
+    packageSettings {
+      mavenDuplicatesAllowed
+      mavenDuplicateExceptionRegex
+    }
+    errors
+  }
+}
diff --git a/app/assets/javascripts/packages_and_registries/settings/group/graphql/queries/get_group_packages_settings.query.graphql b/app/assets/javascripts/packages_and_registries/settings/group/graphql/queries/get_group_packages_settings.query.graphql
new file mode 100644
index 00000000000..2011659887d
--- /dev/null
+++ b/app/assets/javascripts/packages_and_registries/settings/group/graphql/queries/get_group_packages_settings.query.graphql
@@ -0,0 +1,8 @@
+query getGroupPackagesSettings($fullPath: ID!) {
+  group(fullPath: $fullPath) {
+    packageSettings {
+      mavenDuplicatesAllowed
+      mavenDuplicateExceptionRegex
+    }
+  }
+}
diff --git a/app/assets/javascripts/vue_shared/components/settings/settings_block.vue b/app/assets/javascripts/vue_shared/components/settings/settings_block.vue
new file mode 100644
index 00000000000..31094b985a2
--- /dev/null
+++ b/app/assets/javascripts/vue_shared/components/settings/settings_block.vue
@@ -0,0 +1,45 @@
+<script>
+import { GlButton } from '@gitlab/ui';
+import { __ } from '~/locale';
+
+export default {
+  components: { GlButton },
+  props: {
+    defaultExpanded: {
+      type: Boolean,
+      default: false,
+      required: false,
+    },
+  },
+  data() {
+    return {
+      sectionExpanded: false,
+    };
+  },
+  computed: {
+    expanded() {
+      return this.defaultExpanded || this.sectionExpanded;
+    },
+    toggleText() {
+      return this.expanded ? __('Collapse') : __('Expand');
+    },
+  },
+};
+</script>
+
+<template>
+  <section class="settings no-animate" :class="{ expanded }">
+    <div class="settings-header">
+      <h4><slot name="title"></slot></h4>
+      <gl-button @click="sectionExpanded = !sectionExpanded">
+        {{ toggleText }}
+      </gl-button>
+      <p>
+        <slot name="description"></slot>
+      </p>
+    </div>
+    <div class="settings-content">
+      <slot></slot>
+    </div>
+  </section>
+</template>
diff --git a/app/views/groups/settings/packages_and_registries/index.html.haml b/app/views/groups/settings/packages_and_registries/index.html.haml
index 33719d56af1..b6bd16d51a6 100644
--- a/app/views/groups/settings/packages_and_registries/index.html.haml
+++ b/app/views/groups/settings/packages_and_registries/index.html.haml
@@ -2,4 +2,4 @@
 - page_title _('Packages & Registries')
 - @content_class = 'limit-container-width' unless fluid_layout
 
-%section#js-packages-and-registries-settings
+%section#js-packages-and-registries-settings{ data: { default_expanded: expanded_by_default?.to_s, group_path: @group.path } }
diff --git a/app/workers/merge_request_cleanup_refs_worker.rb b/app/workers/merge_request_cleanup_refs_worker.rb
index 6b991a2253f..fbd62ac0a91 100644
--- a/app/workers/merge_request_cleanup_refs_worker.rb
+++ b/app/workers/merge_request_cleanup_refs_worker.rb
@@ -7,6 +7,8 @@ class MergeRequestCleanupRefsWorker
   idempotent!
 
   def perform(merge_request_id)
+    return unless Feature.enabled?(:merge_request_refs_cleanup, default_enabled: false)
+
     merge_request = MergeRequest.find_by_id(merge_request_id)
 
     unless merge_request
diff --git a/app/workers/schedule_merge_request_cleanup_refs_worker.rb b/app/workers/schedule_merge_request_cleanup_refs_worker.rb
index 59b8993f78f..967032f99e5 100644
--- a/app/workers/schedule_merge_request_cleanup_refs_worker.rb
+++ b/app/workers/schedule_merge_request_cleanup_refs_worker.rb
@@ -16,6 +16,7 @@ class ScheduleMergeRequestCleanupRefsWorker
 
   def perform
     return if Gitlab::Database.read_only?
+    return unless Feature.enabled?(:merge_request_refs_cleanup, default_enabled: false)
 
     ids = MergeRequest::CleanupSchedule.scheduled_merge_request_ids(LIMIT).map { |id| [id] }
 
diff --git a/changelogs/unreleased/yo-master-patch-87785.yml b/changelogs/unreleased/yo-master-patch-87785.yml
new file mode 100644
index 00000000000..fc4578b621a
--- /dev/null
+++ b/changelogs/unreleased/yo-master-patch-87785.yml
@@ -0,0 +1,5 @@
+---
+title: Apply GitLab UI button styles to button _blank_state_ee_trial
+merge_request: 51778
+author: Yogi (@yo)
+type: other
diff --git a/config/feature_flags/development/api_json_content_type.yml b/config/feature_flags/development/api_always_use_application_json.yml
similarity index 86%
rename from config/feature_flags/development/api_json_content_type.yml
rename to config/feature_flags/development/api_always_use_application_json.yml
index 5653a834e62..4405ef64012 100644
--- a/config/feature_flags/development/api_json_content_type.yml
+++ b/config/feature_flags/development/api_always_use_application_json.yml
@@ -1,5 +1,5 @@
 ---
-name: api_json_content_type
+name: api_always_use_application_json
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/42229
 rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/270067
 milestone: '13.6'
diff --git a/config/feature_flags/development/merge_request_refs_cleanup.yml b/config/feature_flags/development/merge_request_refs_cleanup.yml
new file mode 100644
index 00000000000..79ea3c8b7a7
--- /dev/null
+++ b/config/feature_flags/development/merge_request_refs_cleanup.yml
@@ -0,0 +1,8 @@
+---
+name: merge_request_refs_cleanup
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/51558
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/296874
+milestone: '13.8'
+type: development
+group: group::code review
+default_enabled: false
diff --git a/danger/commit_messages/Dangerfile b/danger/commit_messages/Dangerfile
index 816d7384a2d..96a0c08c184 100644
--- a/danger/commit_messages/Dangerfile
+++ b/danger/commit_messages/Dangerfile
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
-require_relative File.expand_path('../../lib/gitlab/danger/commit_linter', __dir__)
-require_relative File.expand_path('../../lib/gitlab/danger/merge_request_linter', __dir__)
+require_relative File.expand_path('../../tooling/danger/commit_linter', __dir__)
+require_relative File.expand_path('../../tooling/danger/merge_request_linter', __dir__)
 
 COMMIT_MESSAGE_GUIDELINES = "https://docs.gitlab.com/ee/development/contributing/merge_request_workflow.html#commit-messages-guidelines"
 MORE_INFO = "For more information, take a look at our [Commit message guidelines](#{COMMIT_MESSAGE_GUIDELINES})."
@@ -54,7 +54,7 @@ end
 # https://github.com/jonallured/danger-commit_lint because its output is not
 # very helpful, and it doesn't offer the means of ignoring merge commits.
 def lint_commit(commit)
-  linter = Gitlab::Danger::CommitLinter.new(commit)
+  linter = Tooling::Danger::CommitLinter.new(commit)
 
   # For now we'll ignore merge commits, as getting rid of those is a problem
   # separate from enforcing good commit messages.
@@ -93,7 +93,7 @@ end
 def lint_mr_title(mr_title)
   commit = Struct.new(:message, :sha).new(mr_title)
 
-  Gitlab::Danger::MergeRequestLinter.new(commit).lint
+  Tooling::Danger::MergeRequestLinter.new(commit).lint
 end
 
 def count_non_fixup_commits(commit_linters)
diff --git a/danger/frozen_string/Dangerfile b/danger/frozen_string/Dangerfile
deleted file mode 100644
index bc598b16463..00000000000
--- a/danger/frozen_string/Dangerfile
+++ /dev/null
@@ -1,47 +0,0 @@
-# frozen_string_literal: true
-
-FILE_EXTENSION = ".rb"
-FROZEN_STRING_MAGIC_COMMENT = "# frozen_string_literal: true"
-SHEBANG_COMMENT = "#!"
-
-def get_files_with_no_magic_comment(files)
-  files.select do |path|
-    path.end_with?(FILE_EXTENSION) &&
-      !file_has_frozen_string_magic_comment?(path)
-  end
-end
-
-def file_has_frozen_string_magic_comment?(path)
-  File.open(path) do |file|
-    first_line = file.gets
-
-    line_has_frozen_string_magic_comment?(first_line) ||
-      (line_has_shebang?(first_line) &&
-        line_has_frozen_string_magic_comment?(file.gets))
-  end
-end
-
-def line_has_frozen_string_magic_comment?(line)
-  line&.start_with?(FROZEN_STRING_MAGIC_COMMENT)
-end
-
-def line_has_shebang?(line)
-  line&.start_with?(SHEBANG_COMMENT)
-end
-
-files_to_fix = get_files_with_no_magic_comment(git.added_files)
-
-if files_to_fix.any?
-  warn 'This merge request adds files that do not enforce frozen string literal. ' \
-    'See https://gitlab.com/gitlab-org/gitlab-foss/issues/47424 for more information.'
-
-  if GitlabDanger.new(helper.gitlab_helper).ci?
-    markdown(<<~MARKDOWN)
-      ## Enable Frozen String Literal
-
-      The following files should have `#{FROZEN_STRING_MAGIC_COMMENT}` on the first line:
-
-      * #{files_to_fix.map { |path| "`#{path}`" }.join("\n* ")}
-    MARKDOWN
-  end
-end
diff --git a/danger/plugins/changelog.rb b/danger/plugins/changelog.rb
index 84f399e9e97..fd2dad5932a 100644
--- a/danger/plugins/changelog.rb
+++ b/danger/plugins/changelog.rb
@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
-require_relative '../../lib/gitlab/danger/changelog'
+require_relative '../../tooling/danger/changelog'
 
 module Danger
   class Changelog < Plugin
     # Put the helper code somewhere it can be tested
-    include Gitlab::Danger::Changelog
+    include Tooling::Danger::Changelog
   end
 end
diff --git a/danger/plugins/helper.rb b/danger/plugins/helper.rb
index 2d7a933e801..8602868d817 100644
--- a/danger/plugins/helper.rb
+++ b/danger/plugins/helper.rb
@@ -1,12 +1,12 @@
 # frozen_string_literal: true
 
-require_relative '../../lib/gitlab/danger/helper'
+require_relative '../../tooling/danger/helper'
 
 module Danger
-  # Common helper functions for our danger scripts. See Gitlab::Danger::Helper
+  # Common helper functions for our danger scripts. See Tooling::Danger::Helper
   # for more details
   class Helper < Plugin
     # Put the helper code somewhere it can be tested
-    include Gitlab::Danger::Helper
+    include Tooling::Danger::Helper
   end
 end
diff --git a/danger/plugins/roulette.rb b/danger/plugins/roulette.rb
index 7c62cff0c92..2aa0132852e 100644
--- a/danger/plugins/roulette.rb
+++ b/danger/plugins/roulette.rb
@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
-require_relative '../../lib/gitlab/danger/roulette'
+require_relative '../../tooling/danger/roulette'
 
 module Danger
   class Roulette < Plugin
     # Put the helper code somewhere it can be tested
-    include Gitlab::Danger::Roulette
+    include Tooling::Danger::Roulette
   end
 end
diff --git a/danger/plugins/sidekiq_queues.rb b/danger/plugins/sidekiq_queues.rb
index 1edeb6da3d5..dd436e5cb2b 100644
--- a/danger/plugins/sidekiq_queues.rb
+++ b/danger/plugins/sidekiq_queues.rb
@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
-require_relative '../../lib/gitlab/danger/sidekiq_queues'
+require_relative '../../tooling/danger/sidekiq_queues'
 
 module Danger
   class SidekiqQueues < Plugin
     # Put the helper code somewhere it can be tested
-    include Gitlab::Danger::SidekiqQueues
+    include Tooling::Danger::SidekiqQueues
   end
 end
diff --git a/danger/product_intelligence/Dangerfile b/danger/product_intelligence/Dangerfile
index ec432544977..f324e434a3e 100644
--- a/danger/product_intelligence/Dangerfile
+++ b/danger/product_intelligence/Dangerfile
@@ -22,10 +22,13 @@ tracking_files = [
   'app/helpers/tracking_helper.rb',
   'spec/helpers/tracking_helper_spec.rb',
   'app/assets/javascripts/tracking.js',
-  'spec/frontend/tracking_spec.js'
+  'spec/frontend/tracking_spec.js',
+  'generator_templates/usage_metric_definition/metric_definition.yml',
+  'lib/generators/rails/usage_metric_definition_generator.rb',
+  'spec/lib/generators/usage_metric_definition_generator_spec.rb'
 ]
 
-usage_data_changed_files = helper.changed_files(/usage_data/)
+usage_data_changed_files = helper.changed_files(%r{(usage_data)|(config/metrics)|(ee/config/metrics)})
 snowplow_events_changed_files = git.modified_files & tracking_files
 
 changed_files = (usage_data_changed_files + snowplow_events_changed_files)
diff --git a/danger/roulette/Dangerfile b/danger/roulette/Dangerfile
index 424114a3d33..8289fb599a7 100644
--- a/danger/roulette/Dangerfile
+++ b/danger/roulette/Dangerfile
@@ -35,7 +35,7 @@ UNKNOWN_FILES_MESSAGE = <<MARKDOWN
 
 These files couldn't be categorised, so Danger was unable to suggest a reviewer.
 Please consider creating a merge request to
-[add support](https://gitlab.com/gitlab-org/gitlab/blob/master/lib/gitlab/danger/helper.rb)
+[add support](https://gitlab.com/gitlab-org/gitlab/blob/master/tooling/danger/helper.rb)
 for them.
 MARKDOWN
 
diff --git a/doc/development/dangerbot.md b/doc/development/dangerbot.md
index 59b31437161..413c0a31eec 100644
--- a/doc/development/dangerbot.md
+++ b/doc/development/dangerbot.md
@@ -105,9 +105,9 @@ minimize the number of lines of code in `danger/`. A non-trivial `Dangerfile`
 should mostly call plugin code with arguments derived from the methods provided
 by Danger. The plugin code itself should have unit tests.
 
-At present, we do this by putting the code in a module in `lib/gitlab/danger/...`,
+At present, we do this by putting the code in a module in `tooling/danger/...`,
 and including it in the matching `danger/plugins/...` file. Specs can then be
-added in `spec/lib/gitlab/danger/...`.
+added in `spec/tooling/danger/...`.
 
 To determine if your `Dangerfile` works, push the branch that contains it to
 GitLab. This can be quite frustrating, as it significantly increases the cycle
diff --git a/lib/api/api.rb b/lib/api/api.rb
index ada0da28749..95e37f2c418 100644
--- a/lib/api/api.rb
+++ b/lib/api/api.rb
@@ -123,13 +123,32 @@ module API
 
     format :json
     formatter :json, Gitlab::Json::GrapeFormatter
+    content_type :json, 'application/json'
 
+    # Remove the `text/plain+deprecated` with `api_always_use_application_json` feature flag
     # There is a small chance some users depend on the old behavior.
     # We this change under a feature flag to see if affects GitLab.com users.
-    if Gitlab::Database.cached_table_exists?('features') && Feature.enabled?(:api_json_content_type)
-      content_type :json, 'application/json'
-    else
-      content_type :txt, 'text/plain'
+    # The `+deprecated` is added to distinguish content type
+    # as defined by `API::API` vs ex. `API::Repositories`
+    content_type :txt, 'text/plain+deprecated'
+
+    before do
+      # the feature flag workaround is only for `.txt`
+      api_format = env[Grape::Env::API_FORMAT]
+      next unless api_format == :txt
+
+      # get all defined content-types for the endpoint
+      api_endpoint = env[Grape::Env::API_ENDPOINT]
+      content_types = api_endpoint&.namespace_stackable_with_hash(:content_types).to_h
+
+      # Only overwrite `text/plain+deprecated`
+      if content_types[api_format] == 'text/plain+deprecated'
+        if Feature.enabled?(:api_always_use_application_json)
+          content_type 'application/json'
+        else
+          content_type 'text/plain'
+        end
+      end
     end
 
     # Ensure the namespace is right, otherwise we might load Grape::API::Helpers
diff --git a/lib/api/concerns/packages/conan_endpoints.rb b/lib/api/concerns/packages/conan_endpoints.rb
index 6c8b3a1ba4a..1796d51324f 100644
--- a/lib/api/concerns/packages/conan_endpoints.rb
+++ b/lib/api/concerns/packages/conan_endpoints.rb
@@ -72,6 +72,7 @@ module API
 
           namespace 'users' do
             format :txt
+            content_type :txt, 'text/plain'
 
             desc 'Authenticate user against conan CLI' do
               detail 'This feature was introduced in GitLab 12.2'
diff --git a/lib/api/debian_package_endpoints.rb b/lib/api/debian_package_endpoints.rb
index c95c75b7e5c..9aff34933f7 100644
--- a/lib/api/debian_package_endpoints.rb
+++ b/lib/api/debian_package_endpoints.rb
@@ -32,6 +32,7 @@ module API
       helpers ::API::Helpers::Packages::BasicAuthHelpers
 
       format :txt
+      content_type :txt, 'text/plain'
 
       rescue_from ArgumentError do |e|
         render_api_error!(e.message, 400)
diff --git a/lib/api/jobs.rb b/lib/api/jobs.rb
index e14a4a5e680..c09b01f5b4e 100644
--- a/lib/api/jobs.rb
+++ b/lib/api/jobs.rb
@@ -82,7 +82,8 @@ module API
         content_type 'text/plain'
         env['api.format'] = :binary
 
-        trace = build.trace.raw
+        # The trace can be nil bu body method expects a string as an argument.
+        trace = build.trace.raw || ''
         body trace
       end
 
diff --git a/lib/tasks/gitlab_danger.rake b/lib/tasks/gitlab_danger.rake
index e75539f048c..deff6484231 100644
--- a/lib/tasks/gitlab_danger.rake
+++ b/lib/tasks/gitlab_danger.rake
@@ -1,6 +1,6 @@
 desc 'Run local Danger rules'
 task :danger_local do
-  require 'gitlab_danger'
+  require_relative '../../tooling/gitlab_danger'
   require 'gitlab/popen'
 
   puts("#{GitlabDanger.local_warning_message}\n")
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 7db9dd0f095..57a5ab17b25 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -20304,6 +20304,9 @@ msgstr ""
 msgid "PackageRegistry|Generic"
 msgstr ""
 
+msgid "PackageRegistry|GitLab Packages allows organizations to utilize GitLab as a private repository for a variety of common package formats. %{linkStart}More Information%{linkEnd}"
+msgstr ""
+
 msgid "PackageRegistry|If you haven't already done so, you will need to add the below to your %{codeStart}.pypirc%{codeEnd} file."
 msgstr ""
 
diff --git a/qa/qa/specs/features/browser_ui/2_plan/issue/collapse_comments_in_discussions_spec.rb b/qa/qa/specs/features/browser_ui/2_plan/issue/collapse_comments_in_discussions_spec.rb
index 6ed204a98d4..72c990cbbc2 100644
--- a/qa/qa/specs/features/browser_ui/2_plan/issue/collapse_comments_in_discussions_spec.rb
+++ b/qa/qa/specs/features/browser_ui/2_plan/issue/collapse_comments_in_discussions_spec.rb
@@ -13,7 +13,7 @@ module QA
         issue.visit!
       end
 
-      it 'collapses and expands reply for comments in an issue', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/434' do
+      it 'collapses and expands reply for comments in an issue', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1163' do
         Page::Project::Issue::Show.perform do |show|
           show.select_all_activities_filter
           show.start_discussion('My first discussion')
diff --git a/qa/qa/specs/features/browser_ui/2_plan/issue/create_issue_spec.rb b/qa/qa/specs/features/browser_ui/2_plan/issue/create_issue_spec.rb
index 688f42c48c6..19f77b63ba7 100644
--- a/qa/qa/specs/features/browser_ui/2_plan/issue/create_issue_spec.rb
+++ b/qa/qa/specs/features/browser_ui/2_plan/issue/create_issue_spec.rb
@@ -9,7 +9,7 @@ module QA
         Flow::Login.sign_in
       end
 
-      it 'creates an issue', :reliable, testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/432' do
+      it 'creates an issue', :reliable, testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1167' do
         issue = Resource::Issue.fabricate_via_browser_ui!
 
         Page::Project::Menu.perform(&:click_issues)
diff --git a/qa/qa/specs/features/browser_ui/2_plan/issue/issue_suggestions_spec.rb b/qa/qa/specs/features/browser_ui/2_plan/issue/issue_suggestions_spec.rb
index 7c675862e26..ff33f9d4824 100644
--- a/qa/qa/specs/features/browser_ui/2_plan/issue/issue_suggestions_spec.rb
+++ b/qa/qa/specs/features/browser_ui/2_plan/issue/issue_suggestions_spec.rb
@@ -13,7 +13,7 @@ module QA
         end.project.visit!
       end
 
-      it 'shows issue suggestions when creating a new issue', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/412' do
+      it 'shows issue suggestions when creating a new issue', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1175' do
         Page::Project::Show.perform(&:go_to_new_issue)
         Page::Project::Issue::New.perform do |new_page|
           new_page.fill_title("issue")
diff --git a/qa/qa/specs/features/browser_ui/2_plan/issue/mentions_spec.rb b/qa/qa/specs/features/browser_ui/2_plan/issue/mentions_spec.rb
index 5a8c9a4601a..cc815fd0e67 100644
--- a/qa/qa/specs/features/browser_ui/2_plan/issue/mentions_spec.rb
+++ b/qa/qa/specs/features/browser_ui/2_plan/issue/mentions_spec.rb
@@ -21,7 +21,7 @@ module QA
         end.visit!
       end
 
-      it 'mentions another user in an issue', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/446' do
+      it 'mentions another user in an issue', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1166' do
         Page::Project::Issue::Show.perform do |show|
           at_username = "@#{user.username}"
 
diff --git a/qa/qa/specs/features/browser_ui/2_plan/issue_boards/focus_mode_spec.rb b/qa/qa/specs/features/browser_ui/2_plan/issue_boards/focus_mode_spec.rb
index 7f60726af0e..8f17a25012b 100644
--- a/qa/qa/specs/features/browser_ui/2_plan/issue_boards/focus_mode_spec.rb
+++ b/qa/qa/specs/features/browser_ui/2_plan/issue_boards/focus_mode_spec.rb
@@ -13,7 +13,7 @@ module QA
         Flow::Login.sign_in
       end
 
-      it 'focuses on issue board', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/820' do
+      it 'focuses on issue board', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1176' do
         project.visit!
 
         Page::Project::Menu.perform(&:go_to_boards)
diff --git a/qa/qa/specs/features/browser_ui/2_plan/milestone/create_project_milestone_spec.rb b/qa/qa/specs/features/browser_ui/2_plan/milestone/create_project_milestone_spec.rb
index 99d547acb26..78d1471f484 100644
--- a/qa/qa/specs/features/browser_ui/2_plan/milestone/create_project_milestone_spec.rb
+++ b/qa/qa/specs/features/browser_ui/2_plan/milestone/create_project_milestone_spec.rb
@@ -14,7 +14,7 @@ module QA
         Flow::Login.sign_in
       end
 
-      it 'creates a project milestone', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/901' do
+      it 'creates a project milestone', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1165' do
         project_milestone = Resource::ProjectMilestone.fabricate_via_browser_ui! do |milestone|
           milestone.title = title
           milestone.description = description
diff --git a/qa/qa/specs/features/browser_ui/2_plan/related_issues/related_issues_spec.rb b/qa/qa/specs/features/browser_ui/2_plan/related_issues/related_issues_spec.rb
index 6a133540f87..d907cfaab6d 100644
--- a/qa/qa/specs/features/browser_ui/2_plan/related_issues/related_issues_spec.rb
+++ b/qa/qa/specs/features/browser_ui/2_plan/related_issues/related_issues_spec.rb
@@ -25,7 +25,7 @@ module QA
         Flow::Login.sign_in
       end
 
-      it 'relates and unrelates one issue to/from another', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/541' do
+      it 'relates and unrelates one issue to/from another', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1172' do
         issue_1.visit!
 
         Page::Project::Issue::Show.perform do |show|
diff --git a/qa/qa/specs/features/browser_ui/6_release/pipeline/parent_child_pipelines_independent_relationship_spec.rb b/qa/qa/specs/features/browser_ui/6_release/pipeline/parent_child_pipelines_independent_relationship_spec.rb
index ed8c8baae0e..6c7ab9f2f72 100644
--- a/qa/qa/specs/features/browser_ui/6_release/pipeline/parent_child_pipelines_independent_relationship_spec.rb
+++ b/qa/qa/specs/features/browser_ui/6_release/pipeline/parent_child_pipelines_independent_relationship_spec.rb
@@ -25,7 +25,7 @@ module QA
         runner.remove_via_api!
       end
 
-      it 'parent pipelines passes if child passes', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/754' do
+      it 'parent pipelines passes if child passes', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1161' do
         add_ci_files(success_child_ci_file)
         Flow::Pipeline.visit_latest_pipeline(pipeline_condition: 'completed')
 
@@ -35,7 +35,7 @@ module QA
         end
       end
 
-      it 'parent pipeline passes even if child fails', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/753' do
+      it 'parent pipeline passes even if child fails', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1162' do
         add_ci_files(fail_child_ci_file)
         Flow::Pipeline.visit_latest_pipeline(pipeline_condition: 'completed')
 
diff --git a/scripts/prepare_build.sh b/scripts/prepare_build.sh
index e95f20bc26c..cd41aa0ff14 100644
--- a/scripts/prepare_build.sh
+++ b/scripts/prepare_build.sh
@@ -6,7 +6,8 @@ export BUNDLE_INSTALL_FLAGS=${BUNDLE_INSTALL_FLAGS:-"--without=production develo
 
 if [ "$USE_BUNDLE_INSTALL" != "false" ]; then
   bundle --version
-  run_timed_command "bundle install --clean ${BUNDLE_INSTALL_FLAGS}"
+  bundle config set clean 'true'
+  run_timed_command "bundle install ${BUNDLE_INSTALL_FLAGS}"
   run_timed_command "bundle check"
   # When we test multiple versions of PG in the same pipeline, we have a single `setup-test-env`
   # job but the `pg` gem needs to be rebuilt since it includes extensions (https://guides.rubygems.org/gems-with-extensions).
diff --git a/spec/features/groups/settings/packages_and_registries_spec.rb b/spec/features/groups/settings/packages_and_registries_spec.rb
index b8ffd73335d..09b0707492f 100644
--- a/spec/features/groups/settings/packages_and_registries_spec.rb
+++ b/spec/features/groups/settings/packages_and_registries_spec.rb
@@ -47,6 +47,13 @@ RSpec.describe 'Group Packages & Registries settings' do
       sidebar = find('.nav-sidebar')
       expect(sidebar).to have_link _('Packages & Registries')
     end
+
+    it 'has a Package Registry section', :js do
+      visit_settings_page
+
+      expect(page).to have_content('Package Registry')
+      expect(page).to have_button('Collapse')
+    end
   end
 
   def find_settings_menu
diff --git a/spec/frontend/packages_and_registries/settings/group/components/group_settings_app_spec.js b/spec/frontend/packages_and_registries/settings/group/components/group_settings_app_spec.js
new file mode 100644
index 00000000000..8a1d5044106
--- /dev/null
+++ b/spec/frontend/packages_and_registries/settings/group/components/group_settings_app_spec.js
@@ -0,0 +1,99 @@
+import { shallowMount, createLocalVue } from '@vue/test-utils';
+import { GlSprintf, GlLink } from '@gitlab/ui';
+import VueApollo from 'vue-apollo';
+import createMockApollo from 'helpers/mock_apollo_helper';
+import component from '~/packages_and_registries/settings/group/components/group_settings_app.vue';
+import SettingsBlock from '~/vue_shared/components/settings/settings_block.vue';
+import {
+  PACKAGE_SETTINGS_HEADER,
+  PACKAGE_SETTINGS_DESCRIPTION,
+  PACKAGES_DOCS_PATH,
+} from '~/packages_and_registries/settings/group/constants';
+
+import getGroupPackagesSettingsQuery from '~/packages_and_registries/settings/group/graphql/queries/get_group_packages_settings.query.graphql';
+import { groupPackageSettingsMock } from '../mock_data';
+
+const localVue = createLocalVue();
+
+describe('Group Settings App', () => {
+  let wrapper;
+  let apolloProvider;
+
+  const defaultProvide = {
+    defaultExpanded: false,
+    groupPath: 'foo_group_path',
+  };
+
+  const mountComponent = ({
+    provide = defaultProvide,
+    resolver = jest.fn().mockResolvedValue(groupPackageSettingsMock),
+  } = {}) => {
+    localVue.use(VueApollo);
+
+    const requestHandlers = [[getGroupPackagesSettingsQuery, resolver]];
+
+    apolloProvider = createMockApollo(requestHandlers);
+
+    wrapper = shallowMount(component, {
+      localVue,
+      apolloProvider,
+      provide,
+      stubs: {
+        GlSprintf,
+        SettingsBlock,
+      },
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+    wrapper = null;
+  });
+
+  const findSettingsBlock = () => wrapper.find(SettingsBlock);
+  const findDescription = () => wrapper.find('[data-testid="description"');
+  const findLink = () => wrapper.find(GlLink);
+
+  it('renders a settings block', () => {
+    mountComponent();
+
+    expect(findSettingsBlock().exists()).toBe(true);
+  });
+
+  it('passes the correct props to settings block', () => {
+    mountComponent();
+
+    expect(findSettingsBlock().props('defaultExpanded')).toBe(false);
+  });
+
+  it('has the correct header text', () => {
+    mountComponent();
+
+    expect(wrapper.text()).toContain(PACKAGE_SETTINGS_HEADER);
+  });
+
+  it('has the correct description text', () => {
+    mountComponent();
+
+    expect(findDescription().text()).toMatchInterpolatedText(PACKAGE_SETTINGS_DESCRIPTION);
+  });
+
+  it('has the correct link', () => {
+    mountComponent();
+
+    expect(findLink().attributes()).toMatchObject({
+      href: PACKAGES_DOCS_PATH,
+      target: '_blank',
+    });
+    expect(findLink().text()).toBe('More Information');
+  });
+
+  it('calls the graphql API with the proper variables', () => {
+    const resolver = jest.fn().mockResolvedValue(groupPackageSettingsMock);
+    mountComponent({ resolver });
+
+    expect(resolver).toHaveBeenCalledWith({
+      fullPath: defaultProvide.groupPath,
+    });
+  });
+});
diff --git a/spec/frontend/packages_and_registries/settings/group/mock_data.js b/spec/frontend/packages_and_registries/settings/group/mock_data.js
new file mode 100644
index 00000000000..6be43cb4aea
--- /dev/null
+++ b/spec/frontend/packages_and_registries/settings/group/mock_data.js
@@ -0,0 +1,12 @@
+export const groupPackageSettingsMock = {
+  data: {
+    group: {
+      packageSettings: {
+        mavenDuplicatesAllowed: true,
+        mavenDuplicateExceptionRegex: '',
+        __typename: 'PackageSettings',
+      },
+      __typename: 'Group',
+    },
+  },
+};
diff --git a/spec/frontend/vue_shared/components/settings/__snapshots__/settings_block_spec.js.snap b/spec/frontend/vue_shared/components/settings/__snapshots__/settings_block_spec.js.snap
new file mode 100644
index 00000000000..51b8aa162bc
--- /dev/null
+++ b/spec/frontend/vue_shared/components/settings/__snapshots__/settings_block_spec.js.snap
@@ -0,0 +1,43 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Settings Block renders the correct markup 1`] = `
+<section
+  class="settings no-animate"
+>
+  <div
+    class="settings-header"
+  >
+    <h4>
+      <div
+        data-testid="title-slot"
+      />
+    </h4>
+     
+    <gl-button-stub
+      buttontextclasses=""
+      category="primary"
+      icon=""
+      size="medium"
+      variant="default"
+    >
+      
+      Expand
+    
+    </gl-button-stub>
+     
+    <p>
+      <div
+        data-testid="description-slot"
+      />
+    </p>
+  </div>
+   
+  <div
+    class="settings-content"
+  >
+    <div
+      data-testid="default-slot"
+    />
+  </div>
+</section>
+`;
diff --git a/spec/frontend/vue_shared/components/settings/settings_block_spec.js b/spec/frontend/vue_shared/components/settings/settings_block_spec.js
new file mode 100644
index 00000000000..b550c4cfcc3
--- /dev/null
+++ b/spec/frontend/vue_shared/components/settings/settings_block_spec.js
@@ -0,0 +1,86 @@
+import { shallowMount } from '@vue/test-utils';
+import { GlButton } from '@gitlab/ui';
+import component from '~/vue_shared/components/settings/settings_block.vue';
+
+describe('Settings Block', () => {
+  let wrapper;
+
+  const mountComponent = (propsData) => {
+    wrapper = shallowMount(component, {
+      propsData,
+      slots: {
+        title: '<div data-testid="title-slot"></div>',
+        description: '<div data-testid="description-slot"></div>',
+        default: '<div data-testid="default-slot"></div>',
+      },
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+    wrapper = null;
+  });
+
+  const findDefaultSlot = () => wrapper.find('[data-testid="default-slot"]');
+  const findTitleSlot = () => wrapper.find('[data-testid="title-slot"]');
+  const findDescriptionSlot = () => wrapper.find('[data-testid="description-slot"]');
+  const findExpandButton = () => wrapper.find(GlButton);
+
+  it('renders the correct markup', () => {
+    mountComponent();
+
+    expect(wrapper.element).toMatchSnapshot();
+  });
+
+  it('has a default slot', () => {
+    mountComponent();
+
+    expect(findDefaultSlot().exists()).toBe(true);
+  });
+
+  it('has a title slot', () => {
+    mountComponent();
+
+    expect(findTitleSlot().exists()).toBe(true);
+  });
+
+  it('has a description slot', () => {
+    mountComponent();
+
+    expect(findDescriptionSlot().exists()).toBe(true);
+  });
+
+  describe('expanded behaviour', () => {
+    it('is collapsed by default', () => {
+      mountComponent();
+
+      expect(wrapper.classes('expanded')).toBe(false);
+    });
+
+    it('adds expanded class when the expand button is clicked', async () => {
+      mountComponent();
+
+      expect(wrapper.classes('expanded')).toBe(false);
+      expect(findExpandButton().text()).toBe('Expand');
+
+      await findExpandButton().vm.$emit('click');
+
+      expect(wrapper.classes('expanded')).toBe(true);
+      expect(findExpandButton().text()).toBe('Collapse');
+    });
+
+    it('is expanded when `defaultExpanded` is true no matter what', async () => {
+      mountComponent({ defaultExpanded: true });
+
+      expect(wrapper.classes('expanded')).toBe(true);
+
+      await findExpandButton().vm.$emit('click');
+
+      expect(wrapper.classes('expanded')).toBe(true);
+
+      await findExpandButton().vm.$emit('click');
+
+      expect(wrapper.classes('expanded')).toBe(true);
+    });
+  });
+});
diff --git a/spec/requests/api/api_spec.rb b/spec/requests/api/api_spec.rb
index 9fd30213133..209ac596ac7 100644
--- a/spec/requests/api/api_spec.rb
+++ b/spec/requests/api/api_spec.rb
@@ -126,4 +126,34 @@ RSpec.describe API::API do
       get(api('/users'))
     end
   end
+
+  describe 'supported content-types' do
+    context 'GET /user/:id.txt' do
+      let_it_be(:user) { create(:user) }
+
+      subject { get api("/users/#{user.id}.txt", user) }
+
+      it 'returns application/json' do
+        subject
+
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(response.media_type).to eq('application/json')
+        expect(response.body).to include('{"id":')
+      end
+
+      context 'when api_always_use_application_json is disabled' do
+        before do
+          stub_feature_flags(api_always_use_application_json: false)
+        end
+
+        it 'returns text/plain' do
+          subject
+
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(response.media_type).to eq('text/plain')
+          expect(response.body).to include('#<API::Entities::User:')
+        end
+      end
+    end
+  end
 end
diff --git a/spec/lib/gitlab/danger/base_linter_spec.rb b/spec/tooling/danger/base_linter_spec.rb
similarity index 98%
rename from spec/lib/gitlab/danger/base_linter_spec.rb
rename to spec/tooling/danger/base_linter_spec.rb
index 0136a0278ae..54d8f3dc1f7 100644
--- a/spec/lib/gitlab/danger/base_linter_spec.rb
+++ b/spec/tooling/danger/base_linter_spec.rb
@@ -1,12 +1,11 @@
 # frozen_string_literal: true
 
-require 'fast_spec_helper'
 require 'rspec-parameterized'
 require_relative 'danger_spec_helper'
 
-require 'gitlab/danger/base_linter'
+require_relative '../../../tooling/danger/base_linter'
 
-RSpec.describe Gitlab::Danger::BaseLinter do
+RSpec.describe Tooling::Danger::BaseLinter do
   let(:commit_class) do
     Struct.new(:message, :sha, :diff_parent)
   end
diff --git a/spec/lib/gitlab/danger/changelog_spec.rb b/spec/tooling/danger/changelog_spec.rb
similarity index 95%
rename from spec/lib/gitlab/danger/changelog_spec.rb
rename to spec/tooling/danger/changelog_spec.rb
index 04c515f1205..c0eca67ce92 100644
--- a/spec/lib/gitlab/danger/changelog_spec.rb
+++ b/spec/tooling/danger/changelog_spec.rb
@@ -1,11 +1,10 @@
 # frozen_string_literal: true
 
-require 'fast_spec_helper'
 require_relative 'danger_spec_helper'
 
-require 'gitlab/danger/changelog'
+require_relative '../../../tooling/danger/changelog'
 
-RSpec.describe Gitlab::Danger::Changelog do
+RSpec.describe Tooling::Danger::Changelog do
   include DangerSpecHelper
 
   let(:added_files) { nil }
@@ -53,8 +52,8 @@ RSpec.describe Gitlab::Danger::Changelog do
   describe '#optional?' do
     let(:category_with_changelog) { :backend }
     let(:label_with_changelog) { 'frontend' }
-    let(:category_without_changelog) { Gitlab::Danger::Changelog::NO_CHANGELOG_CATEGORIES.first }
-    let(:label_without_changelog) { Gitlab::Danger::Changelog::NO_CHANGELOG_LABELS.first }
+    let(:category_without_changelog) { Tooling::Danger::Changelog::NO_CHANGELOG_CATEGORIES.first }
+    let(:label_without_changelog) { Tooling::Danger::Changelog::NO_CHANGELOG_LABELS.first }
 
     subject { changelog.optional? }
 
diff --git a/spec/lib/gitlab/danger/commit_linter_spec.rb b/spec/tooling/danger/commit_linter_spec.rb
similarity index 98%
rename from spec/lib/gitlab/danger/commit_linter_spec.rb
rename to spec/tooling/danger/commit_linter_spec.rb
index d3d86037a53..694e524af21 100644
--- a/spec/lib/gitlab/danger/commit_linter_spec.rb
+++ b/spec/tooling/danger/commit_linter_spec.rb
@@ -1,12 +1,11 @@
 # frozen_string_literal: true
 
-require 'fast_spec_helper'
 require 'rspec-parameterized'
 require_relative 'danger_spec_helper'
 
-require 'gitlab/danger/commit_linter'
+require_relative '../../../tooling/danger/commit_linter'
 
-RSpec.describe Gitlab::Danger::CommitLinter do
+RSpec.describe Tooling::Danger::CommitLinter do
   using RSpec::Parameterized::TableSyntax
 
   let(:total_files_changed) { 2 }
diff --git a/spec/lib/gitlab/danger/danger_spec_helper.rb b/spec/tooling/danger/danger_spec_helper.rb
similarity index 100%
rename from spec/lib/gitlab/danger/danger_spec_helper.rb
rename to spec/tooling/danger/danger_spec_helper.rb
diff --git a/spec/lib/gitlab/danger/emoji_checker_spec.rb b/spec/tooling/danger/emoji_checker_spec.rb
similarity index 87%
rename from spec/lib/gitlab/danger/emoji_checker_spec.rb
rename to spec/tooling/danger/emoji_checker_spec.rb
index 6092c751e1c..bbd957b3d00 100644
--- a/spec/lib/gitlab/danger/emoji_checker_spec.rb
+++ b/spec/tooling/danger/emoji_checker_spec.rb
@@ -1,11 +1,10 @@
 # frozen_string_literal: true
 
-require 'fast_spec_helper'
 require 'rspec-parameterized'
 
-require 'gitlab/danger/emoji_checker'
+require_relative '../../../tooling/danger/emoji_checker'
 
-RSpec.describe Gitlab::Danger::EmojiChecker do
+RSpec.describe Tooling::Danger::EmojiChecker do
   using RSpec::Parameterized::TableSyntax
 
   describe '#includes_text_emoji?' do
diff --git a/spec/lib/gitlab/danger/helper_spec.rb b/spec/tooling/danger/helper_spec.rb
similarity index 98%
rename from spec/lib/gitlab/danger/helper_spec.rb
rename to spec/tooling/danger/helper_spec.rb
index bd5c746dd54..69aefddc536 100644
--- a/spec/lib/gitlab/danger/helper_spec.rb
+++ b/spec/tooling/danger/helper_spec.rb
@@ -4,9 +4,9 @@ require 'fast_spec_helper'
 require 'rspec-parameterized'
 require_relative 'danger_spec_helper'
 
-require 'gitlab/danger/helper'
+require_relative '../../../tooling/danger/helper'
 
-RSpec.describe Gitlab::Danger::Helper do
+RSpec.describe Tooling::Danger::Helper do
   using RSpec::Parameterized::TableSyntax
   include DangerSpecHelper
 
@@ -37,7 +37,7 @@ RSpec.describe Gitlab::Danger::Helper do
     context 'when danger gitlab plugin is not available' do
       it 'returns nil' do
         invalid_danger = Class.new do
-          include Gitlab::Danger::Helper
+          include Tooling::Danger::Helper
         end.new
 
         expect(invalid_danger.gitlab_helper).to be_nil
@@ -289,8 +289,8 @@ RSpec.describe Gitlab::Danger::Helper do
       '.gitlab/ci/cng.gitlab-ci.yml'                          | [:engineering_productivity]
       '.gitlab/ci/ee-specific-checks.gitlab-ci.yml'           | [:engineering_productivity]
       'scripts/foo'                                           | [:engineering_productivity]
-      'lib/gitlab/danger/foo'                                 | [:engineering_productivity]
-      'ee/lib/gitlab/danger/foo'                              | [:engineering_productivity]
+      'tooling/danger/foo'                                    | [:engineering_productivity]
+      'ee/tooling/danger/foo'                                 | [:engineering_productivity]
       'lefthook.yml'                                          | [:engineering_productivity]
       '.editorconfig'                                         | [:engineering_productivity]
       'tooling/bin/find_foss_tests'                           | [:engineering_productivity]
diff --git a/spec/lib/gitlab/danger/merge_request_linter_spec.rb b/spec/tooling/danger/merge_request_linter_spec.rb
similarity index 91%
rename from spec/lib/gitlab/danger/merge_request_linter_spec.rb
rename to spec/tooling/danger/merge_request_linter_spec.rb
index 29facc9fdd6..3273b6b3d07 100644
--- a/spec/lib/gitlab/danger/merge_request_linter_spec.rb
+++ b/spec/tooling/danger/merge_request_linter_spec.rb
@@ -1,12 +1,11 @@
 # frozen_string_literal: true
 
-require 'fast_spec_helper'
 require 'rspec-parameterized'
 require_relative 'danger_spec_helper'
 
-require 'gitlab/danger/merge_request_linter'
+require_relative '../../../tooling/danger/merge_request_linter'
 
-RSpec.describe Gitlab::Danger::MergeRequestLinter do
+RSpec.describe Tooling::Danger::MergeRequestLinter do
   using RSpec::Parameterized::TableSyntax
 
   let(:mr_class) do
diff --git a/spec/lib/gitlab/danger/roulette_spec.rb b/spec/tooling/danger/roulette_spec.rb
similarity index 96%
rename from spec/lib/gitlab/danger/roulette_spec.rb
rename to spec/tooling/danger/roulette_spec.rb
index 59ac3b12b6b..9174f812def 100644
--- a/spec/lib/gitlab/danger/roulette_spec.rb
+++ b/spec/tooling/danger/roulette_spec.rb
@@ -3,10 +3,10 @@
 require 'webmock/rspec'
 require 'timecop'
 
-require 'gitlab/danger/roulette'
+require_relative '../../../tooling/danger/roulette'
 require 'active_support/testing/time_helpers'
 
-RSpec.describe Gitlab::Danger::Roulette do
+RSpec.describe Tooling::Danger::Roulette do
   include ActiveSupport::Testing::TimeHelpers
 
   around do |example|
@@ -16,7 +16,7 @@ RSpec.describe Gitlab::Danger::Roulette do
   let(:backend_available) { true }
   let(:backend_tz_offset_hours) { 2.0 }
   let(:backend_maintainer) do
-    Gitlab::Danger::Teammate.new(
+    Tooling::Danger::Teammate.new(
       'username' => 'backend-maintainer',
       'name' => 'Backend maintainer',
       'role' => 'Backend engineer',
@@ -27,7 +27,7 @@ RSpec.describe Gitlab::Danger::Roulette do
   end
 
   let(:frontend_reviewer) do
-    Gitlab::Danger::Teammate.new(
+    Tooling::Danger::Teammate.new(
       'username' => 'frontend-reviewer',
       'name' => 'Frontend reviewer',
       'role' => 'Frontend engineer',
@@ -38,7 +38,7 @@ RSpec.describe Gitlab::Danger::Roulette do
   end
 
   let(:frontend_maintainer) do
-    Gitlab::Danger::Teammate.new(
+    Tooling::Danger::Teammate.new(
       'username' => 'frontend-maintainer',
       'name' => 'Frontend maintainer',
       'role' => 'Frontend engineer',
@@ -49,7 +49,7 @@ RSpec.describe Gitlab::Danger::Roulette do
   end
 
   let(:software_engineer_in_test) do
-    Gitlab::Danger::Teammate.new(
+    Tooling::Danger::Teammate.new(
       'username' => 'software-engineer-in-test',
       'name' => 'Software Engineer in Test',
       'role' => 'Software Engineer in Test, Create:Source Code',
@@ -60,7 +60,7 @@ RSpec.describe Gitlab::Danger::Roulette do
   end
 
   let(:engineering_productivity_reviewer) do
-    Gitlab::Danger::Teammate.new(
+    Tooling::Danger::Teammate.new(
       'username' => 'eng-prod-reviewer',
       'name' => 'EP engineer',
       'role' => 'Engineering Productivity',
@@ -71,7 +71,7 @@ RSpec.describe Gitlab::Danger::Roulette do
   end
 
   let(:ci_template_reviewer) do
-    Gitlab::Danger::Teammate.new(
+    Tooling::Danger::Teammate.new(
       'username' => 'ci-template-maintainer',
       'name' => 'CI Template engineer',
       'role' => '~"ci::templates"',
@@ -121,7 +121,7 @@ RSpec.describe Gitlab::Danger::Roulette do
     let!(:project) { 'gitlab' }
     let!(:mr_source_branch) { 'a-branch' }
     let!(:mr_labels) { ['backend', 'devops::create'] }
-    let!(:author) { Gitlab::Danger::Teammate.new('username' => 'johndoe') }
+    let!(:author) { Tooling::Danger::Teammate.new('username' => 'johndoe') }
     let(:timezone_experiment) { false }
     let(:spins) do
       # Stub the request at the latest time so that we can modify the raw data, e.g. available fields.
@@ -330,7 +330,7 @@ RSpec.describe Gitlab::Danger::Roulette do
   describe '#spin_for_person' do
     let(:person_tz_offset_hours) { 0.0 }
     let(:person1) do
-      Gitlab::Danger::Teammate.new(
+      Tooling::Danger::Teammate.new(
         'username' => 'user1',
         'available' => true,
         'tz_offset_hours' => person_tz_offset_hours
@@ -338,21 +338,21 @@ RSpec.describe Gitlab::Danger::Roulette do
     end
 
     let(:person2) do
-      Gitlab::Danger::Teammate.new(
+      Tooling::Danger::Teammate.new(
         'username' => 'user2',
         'available' => true,
         'tz_offset_hours' => person_tz_offset_hours)
     end
 
     let(:author) do
-      Gitlab::Danger::Teammate.new(
+      Tooling::Danger::Teammate.new(
         'username' => 'johndoe',
         'available' => true,
         'tz_offset_hours' => 0.0)
     end
 
     let(:unavailable) do
-      Gitlab::Danger::Teammate.new(
+      Tooling::Danger::Teammate.new(
         'username' => 'janedoe',
         'available' => false,
         'tz_offset_hours' => 0.0)
diff --git a/spec/lib/gitlab/danger/sidekiq_queues_spec.rb b/spec/tooling/danger/sidekiq_queues_spec.rb
similarity index 96%
rename from spec/lib/gitlab/danger/sidekiq_queues_spec.rb
rename to spec/tooling/danger/sidekiq_queues_spec.rb
index 7dd1a2e6924..c5fc8592621 100644
--- a/spec/lib/gitlab/danger/sidekiq_queues_spec.rb
+++ b/spec/tooling/danger/sidekiq_queues_spec.rb
@@ -1,12 +1,11 @@
 # frozen_string_literal: true
 
-require 'fast_spec_helper'
 require 'rspec-parameterized'
 require_relative 'danger_spec_helper'
 
-require 'gitlab/danger/sidekiq_queues'
+require_relative '../../../tooling/danger/sidekiq_queues'
 
-RSpec.describe Gitlab::Danger::SidekiqQueues do
+RSpec.describe Tooling::Danger::SidekiqQueues do
   using RSpec::Parameterized::TableSyntax
   include DangerSpecHelper
 
diff --git a/spec/lib/gitlab/danger/teammate_spec.rb b/spec/tooling/danger/teammate_spec.rb
similarity index 98%
rename from spec/lib/gitlab/danger/teammate_spec.rb
rename to spec/tooling/danger/teammate_spec.rb
index 9c066ba4c1b..7b2c5bbcdc1 100644
--- a/spec/lib/gitlab/danger/teammate_spec.rb
+++ b/spec/tooling/danger/teammate_spec.rb
@@ -1,12 +1,9 @@
 # frozen_string_literal: true
 
-require 'timecop'
-require 'rspec-parameterized'
-
-require 'gitlab/danger/teammate'
+require_relative '../../../tooling/danger/teammate'
 require 'active_support/testing/time_helpers'
 
-RSpec.describe Gitlab::Danger::Teammate do
+RSpec.describe Tooling::Danger::Teammate do
   using RSpec::Parameterized::TableSyntax
 
   subject { described_class.new(options) }
diff --git a/spec/lib/gitlab/danger/title_linting_spec.rb b/spec/tooling/danger/title_linting_spec.rb
similarity index 92%
rename from spec/lib/gitlab/danger/title_linting_spec.rb
rename to spec/tooling/danger/title_linting_spec.rb
index b48d2c5e53d..1677223f0db 100644
--- a/spec/lib/gitlab/danger/title_linting_spec.rb
+++ b/spec/tooling/danger/title_linting_spec.rb
@@ -1,11 +1,10 @@
 # frozen_string_literal: true
 
-require 'fast_spec_helper'
 require 'rspec-parameterized'
 
-require 'gitlab/danger/title_linting'
+require_relative '../../../tooling/danger/title_linting'
 
-RSpec.describe Gitlab::Danger::TitleLinting do
+RSpec.describe Tooling::Danger::TitleLinting do
   using RSpec::Parameterized::TableSyntax
 
   describe '#sanitize_mr_title' do
diff --git a/spec/lib/gitlab/danger/weightage/maintainers_spec.rb b/spec/tooling/danger/weightage/maintainers_spec.rb
similarity index 71%
rename from spec/lib/gitlab/danger/weightage/maintainers_spec.rb
rename to spec/tooling/danger/weightage/maintainers_spec.rb
index 066bb487fa2..b99ffe706a4 100644
--- a/spec/lib/gitlab/danger/weightage/maintainers_spec.rb
+++ b/spec/tooling/danger/weightage/maintainers_spec.rb
@@ -1,9 +1,9 @@
 # frozen_string_literal: true
 
-require 'gitlab/danger/weightage/maintainers'
+require_relative '../../../../tooling/danger/weightage/maintainers'
 
-RSpec.describe Gitlab::Danger::Weightage::Maintainers do
-  let(:multiplier) { Gitlab::Danger::Weightage::CAPACITY_MULTIPLIER }
+RSpec.describe Tooling::Danger::Weightage::Maintainers do
+  let(:multiplier) { Tooling::Danger::Weightage::CAPACITY_MULTIPLIER }
   let(:regular_maintainer) { double('Teammate', reduced_capacity: false) }
   let(:reduced_capacity_maintainer) { double('Teammate', reduced_capacity: true) }
   let(:maintainers) do
@@ -13,8 +13,8 @@ RSpec.describe Gitlab::Danger::Weightage::Maintainers do
     ]
   end
 
-  let(:maintainer_count) { Gitlab::Danger::Weightage::BASE_REVIEWER_WEIGHT * multiplier }
-  let(:reduced_capacity_maintainer_count) { Gitlab::Danger::Weightage::BASE_REVIEWER_WEIGHT }
+  let(:maintainer_count) { Tooling::Danger::Weightage::BASE_REVIEWER_WEIGHT * multiplier }
+  let(:reduced_capacity_maintainer_count) { Tooling::Danger::Weightage::BASE_REVIEWER_WEIGHT }
 
   subject(:weighted_maintainers) { described_class.new(maintainers).execute }
 
diff --git a/spec/lib/gitlab/danger/weightage/reviewers_spec.rb b/spec/tooling/danger/weightage/reviewers_spec.rb
similarity index 80%
rename from spec/lib/gitlab/danger/weightage/reviewers_spec.rb
rename to spec/tooling/danger/weightage/reviewers_spec.rb
index cca81f4d9b5..5693ce7a10c 100644
--- a/spec/lib/gitlab/danger/weightage/reviewers_spec.rb
+++ b/spec/tooling/danger/weightage/reviewers_spec.rb
@@ -1,9 +1,9 @@
 # frozen_string_literal: true
 
-require 'gitlab/danger/weightage/reviewers'
+require_relative '../../../../tooling/danger/weightage/reviewers'
 
-RSpec.describe Gitlab::Danger::Weightage::Reviewers do
-  let(:multiplier) { Gitlab::Danger::Weightage::CAPACITY_MULTIPLIER }
+RSpec.describe Tooling::Danger::Weightage::Reviewers do
+  let(:multiplier) { Tooling::Danger::Weightage::CAPACITY_MULTIPLIER }
   let(:regular_reviewer) { double('Teammate', hungry: false, reduced_capacity: false) }
   let(:hungry_reviewer) { double('Teammate', hungry: true, reduced_capacity: false) }
   let(:reduced_capacity_reviewer) { double('Teammate', hungry: false, reduced_capacity: true) }
@@ -26,11 +26,11 @@ RSpec.describe Gitlab::Danger::Weightage::Reviewers do
     ]
   end
 
-  let(:hungry_reviewer_count) { Gitlab::Danger::Weightage::BASE_REVIEWER_WEIGHT * multiplier + described_class::DEFAULT_REVIEWER_WEIGHT }
+  let(:hungry_reviewer_count) { Tooling::Danger::Weightage::BASE_REVIEWER_WEIGHT * multiplier + described_class::DEFAULT_REVIEWER_WEIGHT }
   let(:hungry_traintainer_count) { described_class::TRAINTAINER_WEIGHT * multiplier + described_class::DEFAULT_REVIEWER_WEIGHT }
-  let(:reviewer_count) { Gitlab::Danger::Weightage::BASE_REVIEWER_WEIGHT * multiplier }
-  let(:traintainer_count) { Gitlab::Danger::Weightage::BASE_REVIEWER_WEIGHT * described_class::TRAINTAINER_WEIGHT * multiplier }
-  let(:reduced_capacity_reviewer_count) { Gitlab::Danger::Weightage::BASE_REVIEWER_WEIGHT }
+  let(:reviewer_count) { Tooling::Danger::Weightage::BASE_REVIEWER_WEIGHT * multiplier }
+  let(:traintainer_count) { Tooling::Danger::Weightage::BASE_REVIEWER_WEIGHT * described_class::TRAINTAINER_WEIGHT * multiplier }
+  let(:reduced_capacity_reviewer_count) { Tooling::Danger::Weightage::BASE_REVIEWER_WEIGHT }
   let(:reduced_capacity_traintainer_count) { described_class::TRAINTAINER_WEIGHT }
 
   subject(:weighted_reviewers) { described_class.new(reviewers, traintainers).execute }
diff --git a/spec/lib/gitlab_danger_spec.rb b/spec/tooling/gitlab_danger_spec.rb
similarity index 97%
rename from spec/lib/gitlab_danger_spec.rb
rename to spec/tooling/gitlab_danger_spec.rb
index ed668c52a0e..20ac40d1d2a 100644
--- a/spec/lib/gitlab_danger_spec.rb
+++ b/spec/tooling/gitlab_danger_spec.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require 'fast_spec_helper'
+require_relative '../../tooling/gitlab_danger'
 
 RSpec.describe GitlabDanger do
   let(:gitlab_danger_helper) { nil }
diff --git a/spec/workers/merge_request_cleanup_refs_worker_spec.rb b/spec/workers/merge_request_cleanup_refs_worker_spec.rb
index 88d7322536b..7401c6dd4d7 100644
--- a/spec/workers/merge_request_cleanup_refs_worker_spec.rb
+++ b/spec/workers/merge_request_cleanup_refs_worker_spec.rb
@@ -17,6 +17,18 @@ RSpec.describe MergeRequestCleanupRefsWorker do
           subject
         end
       end
+
+      context 'when merge_request_refs_cleanup flag is disabled' do
+        before do
+          stub_feature_flags(merge_request_refs_cleanup: false)
+        end
+
+        it 'does not clean up the merge request' do
+          expect(MergeRequests::CleanupRefsService).not_to receive(:new)
+
+          perform_multiple(1)
+        end
+      end
     end
 
     context 'when merge request does not exist' do
diff --git a/spec/workers/schedule_merge_request_cleanup_refs_worker_spec.rb b/spec/workers/schedule_merge_request_cleanup_refs_worker_spec.rb
index 0dd50efba1c..869818b257e 100644
--- a/spec/workers/schedule_merge_request_cleanup_refs_worker_spec.rb
+++ b/spec/workers/schedule_merge_request_cleanup_refs_worker_spec.rb
@@ -20,6 +20,18 @@ RSpec.describe ScheduleMergeRequestCleanupRefsWorker do
       worker.perform
     end
 
+    context 'when merge_request_refs_cleanup flag is disabled' do
+      before do
+        stub_feature_flags(merge_request_refs_cleanup: false)
+      end
+
+      it 'does not schedule any merge request clean ups' do
+        expect(MergeRequestCleanupRefsWorker).not_to receive(:bulk_perform_in)
+
+        worker.perform
+      end
+    end
+
     include_examples 'an idempotent worker' do
       it 'schedules MergeRequestCleanupRefsWorker to be performed by batch' do
         expect(MergeRequestCleanupRefsWorker)
diff --git a/lib/gitlab/danger/base_linter.rb b/tooling/danger/base_linter.rb
similarity index 99%
rename from lib/gitlab/danger/base_linter.rb
rename to tooling/danger/base_linter.rb
index 898434724bd..c58f2d84dc8 100644
--- a/lib/gitlab/danger/base_linter.rb
+++ b/tooling/danger/base_linter.rb
@@ -2,7 +2,7 @@
 
 require_relative 'title_linting'
 
-module Gitlab
+module Tooling
   module Danger
     class BaseLinter
       MIN_SUBJECT_WORDS_COUNT = 3
diff --git a/lib/gitlab/danger/changelog.rb b/tooling/danger/changelog.rb
similarity index 99%
rename from lib/gitlab/danger/changelog.rb
rename to tooling/danger/changelog.rb
index 4b85775ed98..f7f505f51a6 100644
--- a/lib/gitlab/danger/changelog.rb
+++ b/tooling/danger/changelog.rb
@@ -2,7 +2,7 @@
 
 require_relative 'title_linting'
 
-module Gitlab
+module Tooling
   module Danger
     module Changelog
       NO_CHANGELOG_LABELS = [
diff --git a/lib/gitlab/danger/commit_linter.rb b/tooling/danger/commit_linter.rb
similarity index 91%
rename from lib/gitlab/danger/commit_linter.rb
rename to tooling/danger/commit_linter.rb
index e23f5900433..905031ec881 100644
--- a/lib/gitlab/danger/commit_linter.rb
+++ b/tooling/danger/commit_linter.rb
@@ -1,17 +1,9 @@
 # frozen_string_literal: true
 
-emoji_checker_path = File.expand_path('emoji_checker', __dir__)
-base_linter_path = File.expand_path('base_linter', __dir__)
+require_relative 'base_linter'
+require_relative 'emoji_checker'
 
-if defined?(Rails)
-  require_dependency(base_linter_path)
-  require_dependency(emoji_checker_path)
-else
-  require_relative(base_linter_path)
-  require_relative(emoji_checker_path)
-end
-
-module Gitlab
+module Tooling
   module Danger
     class CommitLinter < BaseLinter
       MAX_CHANGED_FILES_IN_COMMIT = 3
@@ -151,7 +143,7 @@ module Gitlab
       end
 
       def emoji_checker
-        @emoji_checker ||= Gitlab::Danger::EmojiChecker.new
+        @emoji_checker ||= Tooling::Danger::EmojiChecker.new
       end
     end
   end
diff --git a/lib/gitlab/danger/emoji_checker.rb b/tooling/danger/emoji_checker.rb
similarity index 86%
rename from lib/gitlab/danger/emoji_checker.rb
rename to tooling/danger/emoji_checker.rb
index e31a6ae5011..9d8ff93037c 100644
--- a/lib/gitlab/danger/emoji_checker.rb
+++ b/tooling/danger/emoji_checker.rb
@@ -2,11 +2,11 @@
 
 require 'json'
 
-module Gitlab
+module Tooling
   module Danger
     class EmojiChecker
-      DIGESTS = File.expand_path('../../../fixtures/emojis/digests.json', __dir__)
-      ALIASES = File.expand_path('../../../fixtures/emojis/aliases.json', __dir__)
+      DIGESTS = File.expand_path('../../fixtures/emojis/digests.json', __dir__)
+      ALIASES = File.expand_path('../../fixtures/emojis/aliases.json', __dir__)
 
       # A regex that indicates a piece of text _might_ include an Emoji. The regex
       # alone is not enough, as we'd match `:foo:bar:baz`. Instead, we use this
diff --git a/lib/gitlab/danger/helper.rb b/tooling/danger/helper.rb
similarity index 98%
rename from lib/gitlab/danger/helper.rb
rename to tooling/danger/helper.rb
index 09e013e24b8..e50d5af3b6f 100644
--- a/lib/gitlab/danger/helper.rb
+++ b/tooling/danger/helper.rb
@@ -3,7 +3,7 @@
 require_relative 'teammate'
 require_relative 'title_linting'
 
-module Gitlab
+module Tooling
   module Danger
     module Helper
       RELEASE_TOOLS_BOT = 'gitlab-release-tools-bot'
@@ -171,7 +171,7 @@ module Gitlab
         %r{\Alefthook.yml\z} => :engineering_productivity,
         %r{\A\.editorconfig\z} => :engineering_productivity,
         %r{Dangerfile\z} => :engineering_productivity,
-        %r{\A(ee/)?(danger/|lib/gitlab/danger/)} => :engineering_productivity,
+        %r{\A(ee/)?(danger/|tooling/danger/)} => :engineering_productivity,
         %r{\A(ee/)?scripts/} => :engineering_productivity,
         %r{\Atooling/} => :engineering_productivity,
         %r{(CODEOWNERS)} => :engineering_productivity,
@@ -213,7 +213,7 @@ module Gitlab
       }.freeze
 
       def new_teammates(usernames)
-        usernames.map { |u| Gitlab::Danger::Teammate.new('username' => u) }
+        usernames.map { |u| Tooling::Danger::Teammate.new('username' => u) }
       end
 
       def draft_mr?
diff --git a/lib/gitlab/danger/merge_request_linter.rb b/tooling/danger/merge_request_linter.rb
similarity index 74%
rename from lib/gitlab/danger/merge_request_linter.rb
rename to tooling/danger/merge_request_linter.rb
index ed354bfc68d..ddeb9cc2981 100644
--- a/lib/gitlab/danger/merge_request_linter.rb
+++ b/tooling/danger/merge_request_linter.rb
@@ -1,14 +1,8 @@
 # frozen_string_literal: true
 
-base_linter_path = File.expand_path('base_linter', __dir__)
+require_relative 'base_linter'
 
-if defined?(Rails)
-  require_dependency(base_linter_path)
-else
-  require_relative(base_linter_path)
-end
-
-module Gitlab
+module Tooling
   module Danger
     class MergeRequestLinter < BaseLinter
       alias_method :lint, :lint_subject
diff --git a/lib/gitlab/danger/request_helper.rb b/tooling/danger/request_helper.rb
similarity index 96%
rename from lib/gitlab/danger/request_helper.rb
rename to tooling/danger/request_helper.rb
index 06da4ed9ad3..d6b99f562f9 100644
--- a/lib/gitlab/danger/request_helper.rb
+++ b/tooling/danger/request_helper.rb
@@ -3,7 +3,7 @@
 require 'net/http'
 require 'json'
 
-module Gitlab
+module Tooling
   module Danger
     module RequestHelper
       HTTPError = Class.new(RuntimeError)
diff --git a/lib/gitlab/danger/roulette.rb b/tooling/danger/roulette.rb
similarity index 95%
rename from lib/gitlab/danger/roulette.rb
rename to tooling/danger/roulette.rb
index 21feda2cf20..c58130ae804 100644
--- a/lib/gitlab/danger/roulette.rb
+++ b/tooling/danger/roulette.rb
@@ -1,11 +1,11 @@
 # frozen_string_literal: true
 
 require_relative 'teammate'
-require_relative 'request_helper' unless defined?(Gitlab::Danger::RequestHelper)
+require_relative 'request_helper'
 require_relative 'weightage/reviewers'
 require_relative 'weightage/maintainers'
 
-module Gitlab
+module Tooling
   module Danger
     module Roulette
       ROULETTE_DATA_URL = 'https://gitlab-org.gitlab.io/gitlab-roulette/roulette.json'
@@ -72,8 +72,8 @@ module Gitlab
       def team
         @team ||=
           begin
-            data = Gitlab::Danger::RequestHelper.http_get_json(ROULETTE_DATA_URL)
-            data.map { |hash| ::Gitlab::Danger::Teammate.new(hash) }
+            data = Tooling::Danger::RequestHelper.http_get_json(ROULETTE_DATA_URL)
+            data.map { |hash| ::Tooling::Danger::Teammate.new(hash) }
           rescue JSON::ParserError
             raise "Failed to parse JSON response from #{ROULETTE_DATA_URL}"
           end
diff --git a/lib/gitlab/danger/sidekiq_queues.rb b/tooling/danger/sidekiq_queues.rb
similarity index 98%
rename from lib/gitlab/danger/sidekiq_queues.rb
rename to tooling/danger/sidekiq_queues.rb
index 726b6134abf..ae32b128682 100644
--- a/lib/gitlab/danger/sidekiq_queues.rb
+++ b/tooling/danger/sidekiq_queues.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-module Gitlab
+module Tooling
   module Danger
     module SidekiqQueues
       def changed_queue_files
diff --git a/lib/gitlab/danger/teammate.rb b/tooling/danger/teammate.rb
similarity index 99%
rename from lib/gitlab/danger/teammate.rb
rename to tooling/danger/teammate.rb
index 911b84d93ec..beeb508e9f9 100644
--- a/lib/gitlab/danger/teammate.rb
+++ b/tooling/danger/teammate.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-module Gitlab
+module Tooling
   module Danger
     class Teammate
       attr_reader :options, :username, :name, :role, :projects, :available, :hungry, :reduced_capacity, :tz_offset_hours
diff --git a/lib/gitlab/danger/title_linting.rb b/tooling/danger/title_linting.rb
similarity index 97%
rename from lib/gitlab/danger/title_linting.rb
rename to tooling/danger/title_linting.rb
index db1ccaaf9a9..0cff16f4c6b 100644
--- a/lib/gitlab/danger/title_linting.rb
+++ b/tooling/danger/title_linting.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-module Gitlab
+module Tooling
   module Danger
     module TitleLinting
       DRAFT_REGEX = /\A*#{Regexp.union(/(?i)(\[WIP\]\s*|WIP:\s*|WIP$)/, /(?i)(\[draft\]|\(draft\)|draft:|draft\s\-\s|draft$)/)}+\s*/i.freeze
diff --git a/lib/gitlab/danger/weightage.rb b/tooling/danger/weightage.rb
similarity index 94%
rename from lib/gitlab/danger/weightage.rb
rename to tooling/danger/weightage.rb
index 67fade27573..cf8d17410dc 100644
--- a/lib/gitlab/danger/weightage.rb
+++ b/tooling/danger/weightage.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-module Gitlab
+module Tooling
   module Danger
     module Weightage
       CAPACITY_MULTIPLIER = 2 # change this number to change what it means to be a reduced capacity reviewer 1/this number
diff --git a/lib/gitlab/danger/weightage/maintainers.rb b/tooling/danger/weightage/maintainers.rb
similarity index 98%
rename from lib/gitlab/danger/weightage/maintainers.rb
rename to tooling/danger/weightage/maintainers.rb
index cc0eb370e7a..068b24e7913 100644
--- a/lib/gitlab/danger/weightage/maintainers.rb
+++ b/tooling/danger/weightage/maintainers.rb
@@ -2,7 +2,7 @@
 
 require_relative '../weightage'
 
-module Gitlab
+module Tooling
   module Danger
     module Weightage
       class Maintainers
diff --git a/lib/gitlab/danger/weightage/reviewers.rb b/tooling/danger/weightage/reviewers.rb
similarity index 99%
rename from lib/gitlab/danger/weightage/reviewers.rb
rename to tooling/danger/weightage/reviewers.rb
index c8019be716e..e74fce37187 100644
--- a/lib/gitlab/danger/weightage/reviewers.rb
+++ b/tooling/danger/weightage/reviewers.rb
@@ -2,7 +2,7 @@
 
 require_relative '../weightage'
 
-module Gitlab
+module Tooling
   module Danger
     module Weightage
       # Weights after (current multiplier of 2)
diff --git a/lib/gitlab_danger.rb b/tooling/gitlab_danger.rb
similarity index 96%
rename from lib/gitlab_danger.rb
rename to tooling/gitlab_danger.rb
index b0974e02edd..ca62e93a59d 100644
--- a/lib/gitlab_danger.rb
+++ b/tooling/gitlab_danger.rb
@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
+# rubocop:todo Gitlab/NamespacedClass
 class GitlabDanger
   LOCAL_RULES ||= %w[
     changes_size
     documentation
-    frozen_string
     duplicate_yarn_dependencies
     prettier
     eslint