Add jh only feature flag

rubocop/cop/gitlab/mark_used_feature_flags.rb

@@ -255,10 +255,17 @@ module RuboCop
             ]
 
             # For EE additionally process `ee/` feature flags
-            if File.exist?(File.expand_path('../../../ee/app/models/license.rb', __dir__)) && !%w[true 1].include?(ENV['FOSS_ONLY'].to_s)
+            is_ee = File.exist?(File.expand_path('../../../ee/app/models/license.rb', __dir__)) && !%w[true 1].include?(ENV['FOSS_ONLY'].to_s)
+            if is_ee
               flags_paths << 'ee/config/feature_flags/**/*.yml'
             end
 
+            # For JH additionally process `jh/` feature flags
+            is_jh = is_ee && Dir.exist?(File.expand_path('../../../jh', __dir__)) && !%w[true 1].include?(ENV['EE_ONLY'].to_s)
+            if is_jh
+              flags_paths << 'jh/config/feature_flags/**/*.yml'
+            end
+
             flags_paths.each_with_object([]) do |flags_path, memo|
               flags_path = File.expand_path("../../../#{flags_path}", __dir__)
               Dir.glob(flags_path).each do |path|

scripts/used-feature-flags

@@ -27,7 +27,8 @@ flags_paths = [
 ]
 
 # For EE additionally process `ee/` feature flags
-if File.exist?('ee/app/models/license.rb') && !%w[true 1].include?(ENV['FOSS_ONLY'].to_s)
+is_ee = File.exist?('ee/app/models/license.rb') && !%w[true 1].include?(ENV['FOSS_ONLY'].to_s)
+if is_ee
   flags_paths << 'ee/config/feature_flags/**/*.yml'
 
   # Geo feature flags are constructed dynamically and there's no explicit checks in the codebase so we mark all
@@ -41,6 +42,19 @@ if File.exist?('ee/app/models/license.rb') && !%w[true 1].include?(ENV['FOSS_ONL
   end
 end
 
+# For JH additionally process `jh/` feature flags
+is_jh = is_ee && Dir.exist?('jh') && !%w[true 1].include?(ENV['EE_ONLY'].to_s)
+if is_jh
+  flags_paths << 'jh/config/feature_flags/**/*.yml'
+
+  Dir.glob('jh/app/replicators/geo/*_replicator.rb').each_with_object(Set.new) do |path, memo|
+    replicator_name = File.basename(path, '.rb')
+    feature_flag_name = "geo_#{replicator_name.delete_suffix('_replicator')}_replication"
+
+    FileUtils.touch(File.join('tmp', 'feature_flags', "#{feature_flag_name}.used"))
+  end
+end
+
 all_flags = {}
 additional_flags = Set.new