itzbund/siteconfig-impexp

Site configuration import and export functionality for Government Site Builder (GSB) 11. This is part of the Government Site Builder (GSB) 11. The GSB 11 is a measure of the Dienstekonsolidierung Bund (DKB) of the Federal Ministry of the Interior and for Homeland (BMI) and is carried out on behalf o

v2.0.0-rc.4 2025-10-09 10:20 UTC

Requires

• php: ^8.3
• ext-zip: *
• typo3/cms-core: ^13.4

Requires (Dev)

• ergebnis/composer-normalize: ^2.47.0
• helmich/typo3-typoscript-lint: ^3.3.0
• phpmd/phpmd: ^2.13
• ssch/typo3-rector: ^3.5
• typo3/coding-standards: ^0.8
• typo3/testing-framework: ^8.2

Suggests

• ext-redis: *

GPL-3.0-or-later

• Willi Wehmeier

README

GSB 11 Extension siteconfig_impexp

About

The extension siteconfig_impexp provides a backend module to import and export the site configuration.

Learn more about the GSB 11 and dashboard and widgets.

Installation

The best way to install this extension is to start with the GSB Sitepackage Kickstarter extension.

Configuration

Nothing to do.

Feature Flags

This document explains how to use feature flags. We separate between two different kinds of feature flags:

Feature

Feature flags allow you to enable or disable specific features in your installation. \ This is of particular importance to disable features that have not passed the approval process.

Optional

Optional flags allow you to (de-)activate specific features for your installation. \ A practical use for these is the (de-)activation of an extension.

For more information about feature flags in TYPO3, please refer to the official TYPO3 Documentation on Feature Flags.

Feature Flag Configuration

Feature and Optional flags are configured in the .env or the local-dev/.ddev/docker-compose.environment.yaml file on ddev machine. To add a feature flag, use the following syntax:

# FEATURE FLAG
- TYPO3__SYS__features__GSB11_FEATURE_123_NEW_FEATURE=%const(bool:true)%
# OPTIONAL FLAG
- TYPO3__SYS__features__GSB11_OPTION_123_ENABLE_EXTENSION=%const(bool:true)%

In this example, both feature flags, GSB11_FEATURE_123_NEW_FEATURE and GSB11_OPTION_123_ENABLE_EXTENSION, are set to true. To disable the feature, change the value to false or delete the setting.

Feature Flag Truth Table

This table illustrates the behavior of feature flags in various states.

Feature Flag State	Evaluated Value	Description
featureFlag = true	true	The feature is explicitly enabled.
featureFlag = false	false	The feature is explicitly disabled.
featureFlag = ''	false	An empty value is treated as false.
featureFlag not exist	false	A non-existent flag defaults to false.

Usage in PHP Code

To use a feature flag in your PHP code, you can check the flag's value with the isFeatureEnabled() method of the Features class:

if (GeneralUtility::makeInstance(Features::class)->isFeatureEnabled('GSB11_FEATURE_123_NEW_FEATURE')) {
    echo 'Feature is enabled';

    // Feature-specific code
    ...
}

Usage in Fluid Templates

Feature flags can also be checked in your Fluid templates with TYPO3's Feature ViewHelper.

Basic usage

<f:feature name="GSB11_FEATURE_123_NEW_FEATURE">
   This is being shown if the flag is enabled
</f:feature>

Feature > then > else

<f:feature name="GSB11_OPTION_123_ENABLE_EXTENSION">
    <f:then>
        Flag is enabled
    </f:then>
    <f:else>
        Flag is undefined or not enabled
    </f:else>
</f:feature>

Current feature flags of siteconfig_impexp

Feature flag	Description
currently none	-

Usage

Nothing to do.

Contribute

As with TYPO3, we encourage you to join the project by submitting changes. Development of the GSB 11 happens mainly in the GSB 11 TYPO3 extension repositories.

To get started, have a look at our detailed contribution walkthrough.