inotify & rsync

monitor.php

<?php
/**
  svn co http://svn.php.net/repository/inotify/trunk php-inotify
  cd php-inotify
  phpize && ./configure && make
  sudo make install
  # add "extension = inotify.so" to your php config.
  # and modify this script.
  php monitor.php
*/


$fd = inotify_init();

$directory = "/path/to/yourdirectory";
$fileSPLObjects =  new RecursiveIteratorIterator(
                new RecursiveDirectoryIterator($directory),
                RecursiveIteratorIterator::CHILD_FIRST
            );
foreach( $fileSPLObjects as $fullFileName => $fileSPLObject ) {
    if($fileSPLObject->getFilename() !== ".git"){
        inotify_add_watch($fd, $fullFileName, IN_ALL_EVENTS ^ IN_CLOSE_NOWRITE ^ IN_ISDIR ^ IN_OPEN);
    }
}

while(true){
    $flag = false;
    $events = inotify_read($fd);

    foreach($events as $key => $event){
        $flags = array();
        
        // for debug
        if($event["mask"] & IN_ACCESS)
                $flags[] = "IN_ACCESS";
        if($event["mask"] & IN_MODIFY)
                $flags[] = "IN_MODIFY";
        if($event["mask"] & IN_ATTRIB)
                $flags[] = "IN_ATTRIB";
        if($event["mask"] & IN_CLOSE_WRITE)
                $flags[] = "IN_CLOSE_WRITE";
        if($event["mask"] & IN_CLOSE_NOWRITE)
                $flags[] = "IN_CLOSE_NOWRITE";
        if($event["mask"] & IN_OPEN)
                $flags[] = "IN_OPEN";
        if($event["mask"] & IN_MOVED_TO)
                $flags[] = "IN_MOVED_TO";
        if($event["mask"] & IN_MOVED_FROM)
                $flags[] = "IN_MOVED_FROM";
        if($event["mask"] & IN_CREATE)
                $flags[] = "IN_CREATE";
        if($event["mask"] & IN_DELETE)
                $flags[] = "IN_DELETE";
        if($event["mask"] & IN_DELETE_SELF)
                $flags[] = "IN_DELETE_SELF";
        if($event["mask"] & IN_MOVE_SELF)
                $flags[] = "IN_MOVE_SELF";
        if($event["mask"] & IN_CLOSE)
                $flags[] = "IN_CLOSE";
        if($event["mask"] & IN_MOVE)
                $flags[] = "IN_MOVE";
        if($event["mask"] & IN_UNMOUNT)
                $flags[] = "IN_UNMOUNT";
        if($event["mask"] & IN_Q_OVERFLOW)
                $flags[] = "IN_Q_OVERFLOW";
        if($event["mask"] & IN_IGNORED)
                $flags[] = "IN_IGNORED";
        if($event["mask"] & IN_ISDIR)
                $flags[] = "IN_ISDIR";
        if($event["mask"] & IN_ONLYDIR)
                $flags[] = "IN_ONLYDIR";
        if($event["mask"] & IN_DONT_FOLLOW)
                $flags[] = "IN_DONT_FOLLOW";
        if($event["mask"] & IN_MASK_ADD)
                $flags[] = "IN_MASK_ADD";
        if($event["mask"] & IN_ONESHOT)
                $flags[] = "IN_ONESHOT";
        
        //多分これくらいで足りるかと
        if(($event["mask"] & IN_CLOSE_WRITE) && ($event["mask"] & IN_CLOSE)){
            $flag = true;
        } else if(($event["mask"] & IN_MODIFY)) {
            $flag = true;
        } else if($event["mask"] & IN_MOVED_TO || $event["mask"] & IN_MOVED_FROM) {
            $flag = true;
        } else if($event["mask"] & IN_CREATE) {
            $flag = true;
        } else if($event["mask"] & IN_DELETE) {
            $flag = true;
        } else if($event["mask"] & IN_MOVE_SELF) {
            $flag = true;
        }
    }

    if($flag){
        //something changed. add sync script here.
        $flag = false;
    }
    sleep(1);
}