find_in

# File railties/lib/rails/source_annotation_extractor.rb, line 108
    def find_in(dir)
      results = {}

      Dir.glob("#{dir}/*") do |item|
        next if File.basename(item)[0] == ..

        if File.directory?(item)
          results.update(find_in(item))
        else
          extension = Annotation.extensions.detect do |regexp, _block|
            regexp.match(item)
          end

          if extension
            pattern = extension.last.call(tag)
            results.update(extract_annotations_from(item, pattern)) if pattern
          end
        end
      end

      results
    end