How to rescan an externally modified folder in Nextcloud from a custom app?

rkk · October 30, 2016, 4:13pm

Hi everybody.

In short:
How to simulate the command “sudo -u www-data php occ -v files:scan %userid% --path="/%userid%/files/Folder/” from inside a custom Nextcloud app. Is that possible?

In long
I’ve made an app for Nextcloud that runs an external process (binary) which in turn generates some files in a user folder.
The problem is that Nextcloud is unable to list those files until I run the “files:scan” command from the “occ” manually.
But in order to run “occ” I need access to the server terminal or run the command in a cron, which is not the most efficient way to do this.

I was wondering if Nextcloud has some Class or API that I can run to rescan a folder from within my Nextcloud app for the current user.

Any help is highly appreciated.
Greetings and thanks.

Rello · October 30, 2016, 11:23pm

see here, what file:scan does

github.com

nextcloud/server/blob/master/apps/files/lib/Command/Scan.php#L112




	public function checkScanWarning($fullPath, OutputInterface $output) {
		$normalizedPath = basename(\OC\Files\Filesystem::normalizePath($fullPath));
		$path = basename($fullPath);


		if ($normalizedPath !== $path) {
			$output->writeln("\t<error>Entry \"" . $fullPath . '" will not be accessible due to incompatible encoding</error>');
		}
	}


	protected function scanFiles($user, $path, $verbose, OutputInterface $output, $backgroundScan = false) {
		$connection = $this->reconnectToDatabase($output);
		$scanner = new \OC\Files\Utils\Scanner($user, $connection, \OC::$server->getLogger());
		# check on each file/folder if there was a user interrupt (ctrl-c) and throw an exception
		# printout and count
		if ($verbose) {
			$scanner->listen('\OC\Files\Utils\Scanner', 'scanFile', function ($path) use ($output) {
				$output->writeln("\tFile   <info>$path</info>");
				$this->filesCounter += 1;
				if ($this->hasBeenInterrupted()) {
					throw new InterruptedException();

Valentin_Vassas · January 27, 2018, 8:27pm

I am really interested by the solution you may have found (or not) Could you explain ?