README

This package provides Rector rules for updating plugins and modules to Craft 4.

First, ensure Craft 3.7.35 or later is Composer-installed. (Prior versions of Craft weren’t compatible with Rector.)

composer update craftcms/cms

Then run the following commands:

composer require php:^8.0.2

composer config minimum-stability dev

composer config prefer-stable true

composer require craftcms/rector:dev-main --dev

vendor/bin/rector process src --config vendor/craftcms/rector/sets/craft-cms-40.php

(Replace src with the path to your source directory, if not src/.)

You can add --dry-run to the vendor/bin/rector command if you’d like to see what will happen without actually making any changes yet.

If you have code that extends Craft Commerce classes, you can run the following command as well:

vendor/bin/rector process src --config vendor/craftcms/rector/sets/craft-commerce-40.php

Once the commands are complete, you’re ready to update craftcms/cms to Craft 4.

composer require craftcms/cms:^4.0.0-alpha.1 -W

Advanced Configuration

If you’d like to include additional Rector rules, or customize which files/directories should be processed, you’ll need to give your project a rector.php file.

Here’s an example which runs the Craft 4 rule set, but skips over a src/integrations/ folder:

<?php
declare(strict_types = 1);

use craft\rector\SetList as CraftSetList;
use Rector\Core\Configuration\Option;
use Rector\Config\RectorConfig;

return static function(RectorConfig $rectorConfig): void {
    // Skip the integrations folder
    $rectorConfig->skip([
        __DIR__ . '/src/integrations',
    ]);

    // Import the Craft 4 upgrade rule set
    $rectorConfig->sets([
        CraftSetList::CRAFT_CMS_40
    ]);
};

craftcms / rector

Maintainers

Details

README

Advanced Configuration