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Class: ActionView::CacheExpiry::ViewReloader

Do not use. This class is for internal use only.
Relationships & Source Files
Inherits: Object
Defined in: actionview/lib/action_view/cache_expiry.rb

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(watcher:, &block) ⇒ ViewReloader

[ GitHub ] 

  


# File 'actionview/lib/action_view/cache_expiry.rb', line 6



def initialize(watcher:, &block)
  @mutex = Mutex.new
  @watcher_class = watcher
  @watched_dirs = nil
  @watcher = nil
  @previous_change = false

  ActionView::PathRegistry.file_system_resolver_hooks << method(:rebuild_watcher)
end


  







Instance Attribute Details



  

    #updated?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/cache_expiry.rb', line 16



def updated?
  build_watcher unless @watcher
  @previous_change || @watcher.updated?
end


  







Instance Method Details



  

    #all_view_paths   (private)
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/cache_expiry.rb', line 64



def all_view_paths
  ActionView::PathRegistry.all_file_system_resolvers.map(&:path)
end


  








  

    #build_watcher   (private)
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/cache_expiry.rb', line 37



def build_watcher
  @mutex.synchronize do
    old_watcher = @watcher

    if @watched_dirs != dirs_to_watch
      @watched_dirs = dirs_to_watch
      new_watcher = @watcher_class.new([], @watched_dirs) do
        reload!
      end
      @watcher = new_watcher

      # We must check the old watcher after initializing the new one to
      # ensure we don't miss any events
      @previous_change ||= old_watcher&.updated?
    end
  end
end


  








  

    #dirs_to_watch   (private)
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/cache_expiry.rb', line 60



def dirs_to_watch
  all_view_paths.uniq.sort
end


  








  

    #execute  
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/cache_expiry.rb', line 21



def execute
  return unless @watcher

  watcher = nil
  @mutex.synchronize do
    @previous_change = false
    watcher = @watcher
  end
  watcher.execute
end


  








  

    #rebuild_watcher   (private)
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/cache_expiry.rb', line 55



def rebuild_watcher
  return unless @watcher
  build_watcher
end


  








  

    #reload!   (private)
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/cache_expiry.rb', line 33



def reload!
  ActionView::LookupContext::DetailsKey.clear
end