Add latest changes from gitlab-org/gitlab@master

1 files changed, 0 insertions, 264 deletions

diff --git a/rubocop/cop/gitlab/mark_used_feature_flags.rb b/rubocop/cop/gitlab/mark_used_feature_flags.rb
deleted file mode 100644
index 3fa9b1a5bce..00000000000
--- a/rubocop/cop/gitlab/mark_used_feature_flags.rb
+++ /dev/null
@@ -1,264 +0,0 @@
-# frozen_string_literal: true
-
-require_relative '../../code_reuse_helpers'
-
-module RuboCop
-  module Cop
-    module Gitlab
-      # This cop tracks the usage of feature flags among the codebase.
-      #
-      # The files set in `tmp/feature_flags/*.used` can then be used for verification purpose.
-      #
-      class MarkUsedFeatureFlags < RuboCop::Cop::Cop
-        include RuboCop::CodeReuseHelpers
-
-        FEATURE_METHODS = %i[enabled? disabled?].freeze
-        EXPERIMENTATION_METHODS = %i[active?].freeze
-        EXPERIMENT_METHODS = %i[
-          experiment
-          experiment_enabled?
-          push_frontend_experiment
-        ].freeze
-        RUGGED_METHODS = %i[
-          use_rugged?
-        ].freeze
-        WORKER_METHODS = %i[
-          data_consistency
-        ].freeze
-        GRAPHQL_METHODS = %i[
-          field
-        ].freeze
-        SELF_METHODS = %i[
-          push_frontend_feature_flag
-          limit_feature_flag=
-        ].freeze + EXPERIMENT_METHODS + RUGGED_METHODS + WORKER_METHODS
-
-        RESTRICT_ON_SEND = FEATURE_METHODS + EXPERIMENTATION_METHODS + GRAPHQL_METHODS + SELF_METHODS
-
-        USAGE_DATA_COUNTERS_EVENTS_YAML_GLOBS = [
-          File.expand_path("../../../config/metrics/aggregates/*.yml", __dir__),
-          File.expand_path("../../../lib/gitlab/usage_data_counters/known_events/*.yml", __dir__)
-        ].freeze
-
-        DYNAMIC_FEATURE_FLAGS = [
-          :usage_data_static_site_editor_commits, # https://gitlab.com/gitlab-org/gitlab/-/issues/284082
-          :usage_data_static_site_editor_merge_requests # https://gitlab.com/gitlab-org/gitlab/-/issues/284083
-        ].freeze
-
-        # Called before all on_... have been called
-        # When refining this method, always call `super`
-        def on_new_investigation
-          super
-          track_dynamic_feature_flags!
-          track_usage_data_counters_known_events!
-        end
-
-        def on_casgn(node)
-          _, lhs_name, rhs = *node
-
-          save_used_feature_flag(rhs.value) if lhs_name == :FEATURE_FLAG
-        end
-
-        def on_send(node)
-          return if in_spec?(node)
-          return unless trackable_flag?(node)
-
-          flag_arg = flag_arg(node)
-          flag_value = flag_value(node)
-          return unless flag_value
-
-          if flag_arg_is_str_or_sym?(node)
-            if caller_is_feature_gitaly?(node)
-              save_used_feature_flag("gitaly_#{flag_value}")
-            else
-              save_used_feature_flag(flag_value)
-            end
-
-            if experiment_method?(node) || experimentation_method?(node)
-              # Additionally, mark experiment-related feature flag as used as well
-              matching_feature_flags = defined_feature_flags.select { |flag| flag == "#{flag_value}_experiment_percentage" }
-              matching_feature_flags.each do |matching_feature_flag|
-                puts_if_ci(node, "The '#{matching_feature_flag}' feature flag tracks the #{flag_value} experiment, which is still in use, so we'll mark it as used.")
-                save_used_feature_flag(matching_feature_flag)
-              end
-            end
-          elsif flag_arg_is_send_type?(node)
-            puts_if_ci(node, "Feature flag is dynamic: '#{flag_value}.")
-          elsif flag_arg_is_dstr_or_dsym?(node)
-            str_prefix = flag_arg.children[0]
-            rest_children = flag_arg.children[1..]
-
-            if rest_children.none? { |child| child.str_type? }
-              matching_feature_flags = defined_feature_flags.select { |flag| flag.start_with?(str_prefix.value) }
-              matching_feature_flags.each do |matching_feature_flag|
-                puts_if_ci(node, "The '#{matching_feature_flag}' feature flag starts with '#{str_prefix.value}', so we'll optimistically mark it as used.")
-                save_used_feature_flag(matching_feature_flag)
-              end
-            else
-              puts_if_ci(node, "Interpolated feature flag name has multiple static string parts, we won't track it.")
-            end
-          else
-            puts_if_ci(node, "Feature flag has an unknown type: #{flag_arg.type}.")
-          end
-        end
-
-        private
-
-        def puts_if_ci(node, text)
-          puts "#{text} (call: `#{node.source}`, source: #{node.location.expression.source_buffer.name})" if ENV['CI']
-        end
-
-        def save_used_feature_flag(feature_flag_name)
-          used_feature_flag_file = File.expand_path("../../../tmp/feature_flags/#{feature_flag_name}.used", __dir__)
-          return if File.exist?(used_feature_flag_file)
-
-          FileUtils.touch(used_feature_flag_file)
-        end
-
-        def class_caller(node)
-          node.children[0]&.const_name.to_s
-        end
-
-        def method_name(node)
-          node.children[1]
-        end
-
-        def flag_arg(node)
-          if worker_method?(node)
-            return unless node.children.size > 3
-
-            node.children[3].each_pair.find do |pair|
-              pair.key.value == :feature_flag
-            end&.value
-          elsif graphql_method?(node)
-            return unless node.children.size > 3
-
-            opts_index = node.children[3].hash_type? ? 3 : 4
-            return unless node.children[opts_index]
-
-            node.children[opts_index].each_pair.find do |pair|
-              pair.key.value == :feature_flag
-            end&.value
-          else
-            arg_index = rugged_method?(node) ? 3 : 2
-
-            node.children[arg_index]
-          end
-        end
-
-        def flag_value(node)
-          flag_arg = flag_arg(node)
-          return unless flag_arg
-
-          if flag_arg.respond_to?(:value)
-            flag_arg.value
-          else
-            flag_arg
-          end.to_s.tr("\n/", ' _')
-        end
-
-        def flag_arg_is_str_or_sym?(node)
-          flag_arg = flag_arg(node)
-          flag_arg.str_type? || flag_arg.sym_type?
-        end
-
-        def flag_arg_is_send_type?(node)
-          flag_arg(node).send_type?
-        end
-
-        def flag_arg_is_dstr_or_dsym?(node)
-          flag = flag_arg(node)
-          (flag.dstr_type? || flag.dsym_type?) && flag.children[0].str_type?
-        end
-
-        def caller_is_feature?(node)
-          class_caller(node) == "Feature"
-        end
-
-        def caller_is_feature_gitaly?(node)
-          class_caller(node) == "Feature::Gitaly"
-        end
-
-        def caller_is_experimentation?(node)
-          class_caller(node) == "Gitlab::Experimentation"
-        end
-
-        def experiment_method?(node)
-          EXPERIMENT_METHODS.include?(method_name(node))
-        end
-
-        def rugged_method?(node)
-          RUGGED_METHODS.include?(method_name(node))
-        end
-
-        def feature_method?(node)
-          FEATURE_METHODS.include?(method_name(node)) && (caller_is_feature?(node) || caller_is_feature_gitaly?(node))
-        end
-
-        def experimentation_method?(node)
-          EXPERIMENTATION_METHODS.include?(method_name(node)) && caller_is_experimentation?(node)
-        end
-
-        def worker_method?(node)
-          WORKER_METHODS.include?(method_name(node))
-        end
-
-        def graphql_method?(node)
-          GRAPHQL_METHODS.include?(method_name(node)) && in_graphql_types?(node)
-        end
-
-        def self_method?(node)
-          SELF_METHODS.include?(method_name(node)) && class_caller(node).empty?
-        end
-
-        def trackable_flag?(node)
-          feature_method?(node) || experimentation_method?(node) || graphql_method?(node) || self_method?(node)
-        end
-
-        # Marking all event's feature flags as used as Gitlab::UsageDataCounters::HLLRedisCounter.track_event{,context}
-        # is mostly used with dynamic event name.
-        def track_dynamic_feature_flags!
-          DYNAMIC_FEATURE_FLAGS.each(&method(:save_used_feature_flag))
-        end
-
-        # Marking all event's feature flags as used as Gitlab::UsageDataCounters::HLLRedisCounter.track_event{,context}
-        # is mostly used with dynamic event name.
-        def track_usage_data_counters_known_events!
-          usage_data_counters_known_event_feature_flags.each(&method(:save_used_feature_flag))
-        end
-
-        def usage_data_counters_known_event_feature_flags
-          USAGE_DATA_COUNTERS_EVENTS_YAML_GLOBS.each_with_object(Set.new) do |glob, memo|
-            Dir.glob(glob).each do |path|
-              YAML.safe_load(File.read(path))&.each do |hash|
-                memo << hash['feature_flag'] if hash['feature_flag']
-              end
-            end
-          end
-        end
-
-        def defined_feature_flags
-          @defined_feature_flags ||= begin
-            flags_paths = [
-              'config/feature_flags/**/*.yml'
-            ]
-
-            # 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)
-              flags_paths << 'ee/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|
-                feature_flag_name = File.basename(path, '.yml')
-
-                memo << feature_flag_name
-              end
-            end
-          end
-        end
-      end
-    end
-  end
-end