build: Add script to fix strict-types

Signed-off-by: provokateurin <kate@provokateurin.de>

build/fix-strict-types.php

@@ -0,0 +1,56 @@
+#!/usr/bin/env php
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+include __DIR__ . '/../build/integration/vendor/autoload.php';
+
+use PhpParser\Node\DeclareItem;
+use PhpParser\Node\Stmt\Declare_;
+use PhpParser\NodeTraverser;
+use PhpParser\NodeVisitor\CloningVisitor;
+use PhpParser\NodeVisitor\NameResolver;
+use PhpParser\ParserFactory;
+use PhpParser\PrettyPrinter;
+
+$parser = (new ParserFactory())->createForHostVersion();
+
+$nodeTraverser = new NodeTraverser();
+$nodeTraverser->addVisitor(new CloningVisitor());
+$nodeTraverser->addVisitor(new NameResolver());
+
+$prettyPrinter = new PrettyPrinter\Standard();
+
+$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator('lib'));
+
+/** @var SplFileInfo $info */
+foreach ($iterator as $info) {
+	if ($info->getType() !== 'file' || $info->getExtension() !== 'php') {
+		continue;
+	}
+
+	error_log($info->getRealPath());
+
+	$code = file_get_contents($info->getRealPath());
+	$oldStmts = $parser->parse($code);
+	$oldTokens = $parser->getTokens();
+	$newStmts = $nodeTraverser->traverse($oldStmts);
+
+	$hasStrictTypes = false;
+	foreach ($newStmts as $stmt) {
+		if ($stmt instanceof Declare_) {
+			$hasStrictTypes = true;
+			break;
+		}
+	}
+
+	if (!$hasStrictTypes) {
+		array_unshift($newStmts, new Declare_([new DeclareItem('strict_types', new PhpParser\Node\Scalar\Int_(1))]));
+		file_put_contents($info->getRealPath(), $prettyPrinter->printFormatPreserving($newStmts, $oldStmts, $oldTokens));
+	}
+}