class ActiveSupport::FileUpdateChecker


end
i18n_reloader.execute_if_updated
ActionDispatch::Callbacks.to_prepare do
end
I18n.reload!
i18n_reloader = ActiveSupport::FileUpdateChecker.new(paths) do
changed upon a new request.
is used by Rails to reload the I18n framework whenever they are
whenever one of these files are changed. For example, this class
This class is responsible to track files and invoke the given block

def execute_if_updated 

def execute_if_updated
  current_update_at = self.updated_at
  if @last_update_at != current_update_at
    @last_update_at = current_update_at
    @block.call
  end
end

def initialize(paths, calculate=false, &block) 

def initialize(paths, calculate=false, &block)
  @paths = paths
  @block = block
  @last_update_at = calculate ? updated_at : nil
end

def updated_at 

def updated_at
  paths.map { |path| File.stat(path).mtime }.max
end