/**
* Watches the asset manager for changes.
*
* This method includes an infinite loop the continuously polls the asset
* manager for changes.
*
* @param InputInterface $input The command input
* @param OutputInterface $output The command output
*/
private function watch(InputInterface $input, OutputInterface $output)
{
$cache = sys_get_temp_dir() . '/assetic_watch_' . substr(sha1($this->basePath), 0, 7);
if ($input->getOption('force') || !file_exists($cache)) {
$previously = array();
} else {
$previously = unserialize(file_get_contents($cache));
if (!is_array($previously)) {
$previously = array();
}
}
$error = '';
while (true) {
try {
foreach ($this->am->getNames() as $name) {
if ($this->checkAsset($name, $previously)) {
$this->dumpAsset($name, $output, $previously);
}
}
// reset the asset manager
$this->am->clear();
$this->am->load();
\Dev::write_file($cache, serialize($previously));
$error = '';
} catch (\Exception $e) {
if ($error != ($msg = $e->getMessage())) {
$output->writeln('<error>[error]</error> ' . $msg);
$error = $msg;
}
}
usleep($input->getOption('period') * 1000000);
}
}
private function resetAssetManager()
{
$this->am->clear();
clearstatcache();
$this->am->load();
}