Extension:WikiLambda

**Manuel des extensions MediaWiki**
WikiLambda; État de la version : expérimental
Implémentation	Fonction d'analyseur, ContentHandler
Description	Providing Wikimedia wikis with a wikitext parser function to call evaluation of functions written, managed, and evaluated on a central wiki.
Auteur(s)	Wikimedia Foundation
Politique de compatibilité	Versions ponctuelles alignées avec MediaWiki. Le master n'est pas compatible arrière.
Modifie la base; de données	Oui
	Paramètres $wgWikiLambdaClientTargetAPI; $wgWikiLambdaEnableRepoMode; $wgWikiLambdaClientWikis; $wgWikiLambdaAbstractNamespaces; $wgWikiLambdaOrchestratorLocation; $wgWikiLambdaClientModeOffline; $wgWikiLambdaClientDefaultShowChanges; $wgWikiLambdaObjectCache; $wgWikiLambdaPersistBackendCache; $wgWikiLambdaEnableAbstractMode; $wgWikiLambdaEnableClientMode;
	Droits ajoutés wikilambda-abstract-create; wikilambda-abstract-edit; wikilambda-bypass-cache; wikilambda-connect-implementation; wikilambda-connect-tester; wikilambda-create; wikilambda-create-arbitrary-zid; wikilambda-create-boolean; wikilambda-create-converter; wikilambda-create-enum-value; wikilambda-create-function; wikilambda-create-function-call; wikilambda-create-generic-enum; wikilambda-create-implementation; wikilambda-create-language; wikilambda-create-predefined; wikilambda-create-programming; wikilambda-create-tester; wikilambda-create-type; wikilambda-create-unit; wikilambda-disconnect-implementation; wikilambda-disconnect-tester; wikilambda-edit; wikilambda-edit-argument-label; wikilambda-edit-attached-implementation; wikilambda-edit-attached-tester; wikilambda-edit-boolean; wikilambda-edit-function-attached-implementation; wikilambda-edit-function-attached-tester; wikilambda-edit-builtin-function; wikilambda-edit-connected-converter; wikilambda-edit-converter; wikilambda-edit-enum-value; wikilambda-edit-error-key-label; wikilambda-edit-function-call; wikilambda-edit-generic-enum-type; wikilambda-edit-generic-enum-item; wikilambda-edit-generic-enum-id; wikilambda-edit-implementation; wikilambda-edit-key-label; wikilambda-edit-language; wikilambda-edit-object-alias; wikilambda-edit-object-description; wikilambda-edit-object-label; wikilambda-edit-object-type; wikilambda-edit-predefined; wikilambda-edit-programming; wikilambda-edit-running-function; wikilambda-edit-running-function-definition; wikilambda-edit-tester; wikilambda-edit-type; wikilambda-edit-unit; wikilambda-edit-user-function; wikilambda-execute; wikilambda-execute-unsaved-code; wikifunctions-run;
	Accroches utilisées getUserPermissionsErrors; MultiContentSave; NamespaceIsMovable; ParserFirstCallInit; HtmlPageLinkRendererEnd;
Licence	Licence MIT
Téléchargement	Télécharger l'extension ; Git [?]: parcourir le dépôt (GitHub); relecture Gerrit du code; historique Git des validations (commits); Télécharger le tarball source;
	Traduire l’extension WikiLambda sur translatewiki.net si elle y est disponible
Problèmes	Tâches ouvertes · Signaler un bogue

This page is a translated version of the page Extension:WikiLambda and the translation is 3% complete.

The WikiLambda extension provides for a wiki to host functions written, managed, and evaluated by users, which is used to power wikifunctions.org. It forms the core of the "Wikifunctions" software stack, as part of the work towards Abstract Wikipedia. The system is currently in active development, with the front-end written in Vue.js and using the new Codex interface library. Wikifunctions via WikiLambda provides Wikimedia wikis with a wikitext parser function to make evaluations from Wikifunctions on their local wiki.

Introduction

Wikifunctions is a MediaWiki installation on which function content, but not output, is stored. This content takes the form of programmatic descriptions of each available function ("Functions"), actual user-written code for these functions ("Implementations"), test suites for these functions ("Testers"), and human-facing documentation about these functions, alongside the usual wiki community management content like village pumps, discussion areas, and policy pages.

Requests for function calls can come in directly via a Web request, or via MediaWiki (through a parser function {{#function:…}}). The function orchestrator determines the specifics of the request, checks the cache to see if the output value has been recently provided, and either returns that or proceeds to trigger an evaluation. To do that, it fetches all relevant content from the cluster, be that published function content (or mid-edit as-yet-unpublished function content being "previewed") from Wikifunctions, or structured content on which functions can operate from Wikidata and Wikimedia Commons. The complete bundle of code to execute and inputs on which to execute are then passed to the appropriate function executor, which then securely tries to execute the input and returns the output (or a failure error). The orchestrator then writes the successful result to the cache and transmits it to the consumer.

The WikiLambda extension is responsible for content management of the content on the Wikifunctions wiki (like the Wikibase Repository extension), providing editing interfaces, restricting users from or warning about certain actions, and providing a reading and test execution interface, and the integration of content requests on all Wikimedia wikis (like the Wikibase Client extension). User-written code is never executed in the context of the production environment, and thus never has access to sensitive content, but is only run in isolated, disposable instances.

Getting started

Install

Téléchargez et placez le(s) fichier(s) dans un répertoire appelé WikiLambda dans votre dossier extensions/.
Les développeurs et les contributeurs au code doivent à la place installer l'extension à partir de Git en utilisant:
```
cd extensions/
git clone --recurse-submodules https://gerrit.wikimedia.org/r/mediawiki/extensions/WikiLambda
```
Seulement lorsque vous installez à partir de Git, exécutez Composer pour installer les dépendances PHP, en entrant composer install --no-dev après vous être positionné dans le répertoire de l'extension. (Voir T173141 pour des complications potentielles.)
Ajoutez le code suivant à la fin de votre fichier LocalSettings.php :
```
wfLoadExtension( 'WikiLambda' );
```
Exécutez le script de mise à jour qui va créer automatiquement les tables de base de données dont cette extension a besoin.
Fait – Accédez à Special:Version sur votre wiki pour vérifier que l'extension a bien été installée.

Installing the back-end services

If you wish you install the back-end services to use the WikiLambda software, you must do so and configure them. Instructions are subject to change, and so only provided within the repo.

Testing locally

(TODO)

Code stewardship

Maintenu par Abstract Wikipedia team.
Discussion en direct (IRC): #wikipedia-abstract-tech ^connecter
Suivi des problèmes : Phabricator wikilambda (rapporter un problème)