README

Bridges a host-owned Twig environment (Timber, ...) into the 1815 service container as the twig service.

What it does

• The twig service: the container exposes the host's Twig environment (captured via a TwigEnvironmentHolder) as twig / Twig\Environment, so container services render with the SAME instance the host renders with.
• A LOAD-BEARING bundle name: the bundle class is named TwigBundle on purpose. Bundle::getName() returns the short class name, and packages such as ux-twig-component refuse to load unless kernel.bundles contains a 'TwigBundle' key. Registering this bundle satisfies that check honestly: this IS the bundle that provides the twig service in this stack. Symfony's own TwigBundle cannot be registered alongside it (duplicate name), which is correct: the two architectures are mutually exclusive.
• The adapter seam: TwigAdapter abstracts who owns the environment. A Timber adapter is included; for Tile or plain Twig, implement TwigAdapter and alias it in your container.
• The configurator tag: other bundles contribute environment setup (lexers, escaper safe-classes, ...) by implementing EnvironmentConfiguratorInterface, autoconfigured with the wp_twig.configurator tag. The bundle also consumes the standard twig.extension and twig.runtime tags, like Symfony's TwigBundle would.
• Auto @BundleName template namespaces: on boot, every registered bundle's <path>/templates directory is registered on the host loader as @<BundleName minus the Bundle suffix> (e.g. ux-turbo's templates become @Turbo), mirroring symfony/twig-bundle's convention so templates and component resolution written against the native bundle work unchanged.

Usage

The package self-registers its bundle through composer autoload.files (filter achttienvijftien/container_bundles). Once the container boots:

$twig = apply_filters( 'achttienvijftien/container', null )->get( 'twig' );
// Same environment Timber renders with, after Timber built it.

Contribute environment setup from another bundle:

class MyConfigurator implements \AchttienVijftien\Bundle\WpTwigBundle\EnvironmentConfiguratorInterface {
	public function configure( \Twig\Environment $environment ): void {
		// runs once per host environment instance
	}
}

Timber adapter included; Tile/other hosts: implement TwigAdapter.

Compatibility

This package is service-id + tag level compatible with code written against symfony/twig-bundle:

• the twig service / Twig\Environment alias and the lazy twig.loader service exist with the expected semantics;
• the twig.extension and twig.runtime tags are consumed;
• @Bundle template namespaces auto-register per the same convention.

It is NOT FQCN-level compatible: class_exists gates on Symfony\Bundle\TwigBundle\... classes cannot be satisfied, because that package is deliberately not installed.

Future: native symfony/twig-bundle

The door stays open, but environment OWNERSHIP is the blocker: Timber owns its Twig environment (and its autoescape defaults differ from the native bundle's), so the container cannot simply build a second, authoritative environment without splitting rendering in two. Adoption is viable per-host through the TwigAdapter seam: a container-first host could invert the bridge and hand the container's environment to the host instead, at which point the native bundle could own the twig service.