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();