Provide placeholder for absolute path about workflow_script

[blizzz]

(If I understand it correctly, %n is created by using the full path and stripping the base)

nope, it's more complicated:

workflow_script/lib/Operation.php

Lines 265 to 331 in 9fe9d44

	protected function replacePlaceholderN(Node $node): string {
	$owner = $node->getOwner();
	try {
	$nodeID = $node->getId();
	$storage = $node->getStorage();
	} catch (NotFoundException | InvalidPathException $e) {
	$context = [
	'app' => 'workflow_script',
	'exception' => $e,
	'node' => $node,
	];
	$message = 'Could not get if of node {node}';
	if (isset($nodeID)) {
	$message = 'Could not find storage for file ID {fid}, node: {node}';
	$context['fid'] = $nodeID;
	}
	$this->logger->warning($message, $context);
	throw new PlaceholderNotSubstituted('n', $e);
	}
	if (isset($storage) && $storage->instanceOfStorage(GroupFolderStorage::class)) {
	// group folders are always located within $DATADIR/__groupfolders/
	$absPath = $storage->getLocalFile($node->getPath());
	$pos = strpos($absPath, '/__groupfolders/');
	// if the string cannot be found, the fallback is absolute path
	// it should never happen #famousLastWords
	if ($pos === false) {
	$this->logger->warning(
	'Groupfolder path does not contain __groupfolders. File ID: {fid}, Node path: {path}, absolute path: {abspath}',
	[
	'app' => 'workflow_script',
	'fid' => $nodeID,
	'path' => $node->getPath(),
	'abspath' => $absPath,
	]
	);
	}
	$ncRelPath = substr($absPath, (int)$pos);
	} elseif (isset($storage) && $storage->instanceOfStorage(SharedStorage::class)) {
	try {
	$folder = $this->rootFolder->getUserFolder($owner->getUID());
	} catch (NotPermittedException | NoUserException $e) {
	throw new PlaceholderNotSubstituted('n', $e);
	}
	$nodes = $folder->getById($nodeID);
	if (empty($nodes)) {
	throw new PlaceholderNotSubstituted('n');
	}
	$newNode = array_shift($nodes);
	$ncRelPath = $newNode->getPath();
	} else {
	$ncRelPath = $node->getPath();
	if (strpos($node->getPath(), $owner->getUID()) !== 0) {
	$nodes = $this->rootFolder->getById($nodeID);
	foreach ($nodes as $testNode) {
	if (strpos($node->getPath(), $owner->getUID()) === 0) {
	$ncRelPath = $testNode;
	break;
	}
	}
	}
	}
	$ncRelPath = ltrim($ncRelPath, '/');
	return $ncRelPath;
	}

%f should give you the absolute path for files available on local storage. Those from external will be copied to a temp directory.