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React Filesystem Monitor

Asynchronous filesystem monitor based on React PHP.

Currently these implementations are available:

  • INotifyProcessMonitor based on inotifywait command line utility, used on Linux.
  • FsWatchProcessMonitor based on fswatch, used on OSX.

All implementations' constructors take two arguments: a path to watch (file or recursively watched directory) and optional array of event to watch for (defaults to all events).

Available events:

  • access i.e. read
  • attribute - modification of permissions, timestamps etc.
  • close
  • create
  • delete
  • modify
  • move_from, move_to - file move, fired with source and destination path respectively. Only those for paths inside watched dir are fired.
  • open

These events pass as arguments: path which triggered it, boolean indicating whether the path is a directory, event name and monitor instance itself.

Additional events:

  • all - fired for all events above
  • start - fired when watchers finished setting up
  • error

Please note that not all backends support all events. fswatch won't emit open and close events; also start is fired immediately after process starts instead of when setup is complete.

Example

$loop = React\EventLoop\Factory::create();

$monitor = (new ReactFilesystemMonitor\FilesystemMonitorFactory())->create('foo/bar', ['modify', 'delete']);
$monitor->on('all', function ($path, $isDir, $event, $monitor) {
    echo sprintf("%s:  %s%s\n", $event, $path, $isDir ? ' [dir]' : '');
});
$monitor->start($loop);

$loop->run();