Add latest changes from gitlab-org/gitlab@master

1 files changed, 58 insertions, 0 deletions

diff --git a/tooling/danger/outdated_todo.rb b/tooling/danger/outdated_todo.rb
new file mode 100644
index 00000000000..a5f5cc897a9
--- /dev/null
+++ b/tooling/danger/outdated_todo.rb
@@ -0,0 +1,58 @@
+# frozen_string_literal: true
+
+module Tooling
+  module Danger
+    class OutdatedTodo
+      TODOS_GLOBS = %w[
+        .rubocop_todo/**/*.yml
+        spec/support/rspec_order_todo.yml
+      ].freeze
+
+      def initialize(filenames, context:, todos: TODOS_GLOBS)
+        @filenames = filenames
+        @context = context
+        @todos_globs = todos
+      end
+
+      def check
+        filenames.each do |filename|
+          check_filename(filename)
+        end
+      end
+
+      private
+
+      attr_reader :filenames, :context
+
+      def check_filename(filename)
+        mentions = all_mentions_for(filename)
+
+        return if mentions.empty?
+
+        context.warn <<~MESSAGE
+          `#{filename}` was removed but is mentioned in:
+          #{mentions.join("\n")}
+        MESSAGE
+      end
+
+      def all_mentions_for(filename)
+        todos
+          .filter_map { |todo| mentioned_lines(filename, todo) }
+          .flatten
+          .map { |todo| "- `#{todo}`" }
+      end
+
+      def mentioned_lines(filename, todo)
+        File
+          .foreach(todo)
+          .with_index(1)
+          .select { |text, _line| text.match?(/.*#{filename}.*/) }
+          .map { |_text, line| "#{todo}:#{line}" }
+      end
+
+      def todos
+        @todos ||= @todos_globs.flat_map { |value| Dir.glob(value) }
+      end
+    end
+  end
+end