FSEvents API implementation in MacRuby

fsevents.rb

if RUBY_ENGINE == 'macruby'
  framework 'CoreServices'

  WATCHED_EXTS = "rb,builder,erb,nokogiri"
  PASSENGER_RESTART_FILE = File.expand_path(File.join(File.dirname(__FILE__), "..", "tmp", "restart.txt"))
  DELAY = 3

  def modified_files(path)
    Dir.glob("#{File.expand_path(path)}/*.{#{WATCHED_EXTS}}").map do |filename|
      begin
        [File.mtime(filename), filename]
      rescue Errno::ENOENT
        nil
      end
    end.compact.map { |mtime, filename| filename if mtime > Time.now - DELAY}.compact
  end
  

  callback = Proc.new do |stream, client_callback_info, number_of_events, paths_pointer, event_flags, event_ids|
    # cast the pointer as a char string since it's defined as a void pointer.
    paths_pointer.cast!('*')
    number_of_events.times do |n|
      unless modified_files(paths_pointer[n]).empty?
        puts "#{modified_files(paths_pointer[n]).join(" ")} modified, telling passenger to reload"
        # restart passenger by touching tmp/restart.txt
        `touch #{PASSENGER_RESTART_FILE}`
      end
    end
  end

  paths = [File.expand_path(File.join(File.dirname(__FILE__), ".."))]
  stream = FSEventStreamCreate(KCFAllocatorDefault, callback, nil, paths, KFSEventStreamEventIdSinceNow, 0.0, 0)
  FSEventStreamScheduleWithRunLoop(stream, CFRunLoopGetCurrent(), KCFRunLoopDefaultMode)
  FSEventStreamStart(stream)

  NSRunLoop.currentRunLoop.runUntilDate(NSDate.distantFuture)

else
  puts "This reloader script only works in MacRuby."
end

Uninstalled through rvm, installed the .pkg from the website, but got the same result.

Have you tried installing the latest BridgeSupport Preview 3 package too? (http://www.macruby.org/files/) It is possible that this is a BridgeSupport bug that we fixed since, as I remember we added fixes for FSEvents specifically.

That was it, thanks both of you!

I got really bored: ttilley/mrb-fsevent@b472717