drupol / composer-packages

src/Exporter/Dependencies.php

<?php

declare(strict_types=1);

namespace drupol\ComposerPackages\Exporter;

use Composer\Package\Loader\ArrayLoader;
use Composer\Package\PackageInterface;

final class Dependencies extends Exporter
{
    public function exportToArray(): array
    {
        $data = $this->getEvent()->getComposer()->getLocker()->getLockData();

        $packagesData = array_merge(
            $data['packages'],
            $data['packages-dev']
        );

        $packageDeps = [];

        foreach ($packagesData as $package) {
            $package = (new ArrayLoader())->load($package);
            $packageName = $package->getName();
            $packageDeps += [$packageName => []];
            $this->getDependenciesOf($packageDeps[$package->getName()], $package);

            $packageDeps[$packageName] = array_values($packageDeps[$packageName]);
        }

        return [

The expression return array('packageDeps' => $packageDeps, 'regex' => $this->buildRegex($packageDeps)) returns an array which contains values of type array which are incompatible with the return type string mandated by drupol\ComposerPackages\Exporter\ExporterInterface::exportToArray().

            'packageDeps' => $packageDeps,
            'regex' => $this->buildRegex($packageDeps),
        ];
    }

    /**
     * @param array<string> $carry
     */
    protected function getDependenciesOf(array &$carry, PackageInterface $package): void
    {
        foreach (array_keys($package->getRequires()) as $key) {
            if ('php' === $key) {
                continue;
            }

            if (0 === strpos((string) $key, 'ext-')) {
                continue;
            }

            $carry += [$key => $key];
        }
    }

    /**
     * @param array<string, array> $packages
     *
     * @return array<string, array<int, string>>
     */
    private function buildRegex(array $packages): array
    {
        $groups = [];

        foreach ($packages as $package => $dependencies) {
            [$prefix, $bundle] = explode('/', $package);
            $groups[sprintf('(?i:%s)(?|', $prefix)][] = sprintf(
                '/?(?i:%s) (*MARK:%s)|',
                str_replace('-', '-?', $bundle),
                $package
            );
        }

        return $groups;
    }
}