/** @return void */
private function watch(Runner $runner)
{
$prev = array();
$counter = 0;
while (TRUE) {
$state = array();
foreach ($this->options['--watch'] as $directory) {
foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($directory)) as $file) {
if (substr($file->getExtension(), 0, 3) === 'php' && substr($file->getBasename(), 0, 1) !== '.') {
$state[(string) $file] = md5_file((string) $file);
}
}
}
if ($state !== $prev) {
$prev = $state;
$runner->run();
}
echo "Watching " . implode(', ', $this->options['--watch']) . " " . str_repeat('.', ++$counter % 5) . " \r";
sleep(2);
}
}
