Come diventare un hacker di MediaWiki

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Questo articolo è stato scritto per aiutare gli sviluppatori ad apprendere le abilità necessarie per contribuire allo sviluppo di MediaWiki core (il nucleo base) e delle estensioni aggiuntive per Mediawiki. Nella maggior parte dei casi, nell'utilizzare MediaWiki, non sarà necessario modificala, a meno che non si sappia veramente bene ciò che si sta facendo.

Il primo approccio per iniziare con lo sviluppo di Wikimedia è quello di contribuire a un progetto Wikimedia assistito da parte di utenti già esperti(progetto con mentoring). Un'alternativa senza assistenza è quella di sistemare qualche eventuale piccolo bug fastidioso

Se sei uno sviluppatore avanzato e hai già maneggiato la funzione di MediaWiki, visita la Hub degli Sviluppatori .

Per sapere altri modi di contribuire nella comunità di Wikimedia, vedi 'Come contribuire '.

Panoramica

MediaWiki è il software che permette di lavorare su Wikipedia, su i suoi progetti collegati, e su migliaia di pagine in tutto il mondo.

MediaWiki è scritto nel linguaggio di programmazione PHP. Non tutto MediaWiki è scritto in PHP. Esistono alcuni strumenti aggiuntivi che sono scritti in altri linguaggi, tra cui file batch, script di shell, makefiles e Python. Esso usa jQuery e anche la libreria cliente di JavaScript.

MediaWiki è scritto principalmente per la piattaforma LAMP, e gira sulla maggior parte delle piattaforme che supportano PHP.C iò nonostante, la mancanza di alcune utility, o particolari caratteristiche del sistema operativo, possono limitare la funzionalità o rendimento di MediaWiki in piattaforme che non sono LAMP. e gira sulla maggior parte dei sistemi operativi. MediaWiki usa principalmente server di MySQL e MariaDB.[1]

Development happens in an open source style[2], is largely coordinated online, and supported by the Wikimedia Foundation, though volunteer community developers play a huge part as well.

Questa pagina ti aiuterà a diventare un collaboratore di MediaWiki. It is not a tutorial; it just points you to various places where you can go learn whatever is necessary.

Imposta il tuo ambiente di sviluppo

Molti progetti usano Git e Gerrit. Segui il Special:MyLanguage/Gerrit/Tutorial per impostare il tuo accout di sviluppo. Then you can move on to downloading our code, making changes, testing them, and submitting patches. There are two ways to set up your development environment: using a pre-configured virtual machine setup (Vagrant or Docker), or a manual configuration approach.

Virtual Machine with Vagrant

  • Vagrant installation — These steps will install MediaWiki server with all the requirements inside a Linux virtual machine (can be used on Linux, Windows, or Mac hosts).

Docker development environment

  • MediaWiki Docker – Run MediaWiki using Docker (can be used on Linux, Windows or macOS hosts).

Manuale di installazione

  • Installation requirements — Check hardware requirements, and install a LAMP, MAMP or WAMP server (Linux, Mac or Windows, plus Apache, MySQL/MariaDB and PHP).

It's not necessary to download Wikipedia database dumps in order to develop MediaWiki features. In fact, in many cases it's easier to use a near-empty database with a few specially-crafted test pages. However, if for some reason you want to have a copy of Wikipedia, you can get a dump.

Suggested reading

Watch as a developer fixes a bug in a MediaWiki extension, including investigation, git commit, getting it reviewed and merged, and closing the Bugzilla ticket (now replaced by Phabricator ).

Commenti, domande e assistenza

  • You are expected to do some basic research yourself first: Look at the code, try to get some understanding what it is supposed to do, read related documentation, try to find the probable place(s) where you need to make changes in order to fix the bug.
  • If you have general questions which are not tied to the specific task that you want to work on, use generic channels like IRC chat or mailing lists but not the specific task.
  • If you have a specific question about the bug itself, comment in the corresponding bug report (normally a task in Phabricator ). "Can you give me more info how to fix this bug?" is not a good question to start with: The more specific your questions are, the more likely somebody can answer them quickly. If you have no idea at all how to fix the bug, maybe that bug is not (yet) for you – please consider finding an easier one first.
  • When asking, explain what you have tried and found out already, so others can help at the right level. Be specific – for example, copy and paste your commands and their output (if not too long) instead of paraphrasing in your own words. This avoids misunderstandings.
  • Do not ask if you can work on a task.
  • Avoid private email or support requests in our social media channels.
  • Be patient when seeking input and comments. On IRC, don't ask to ask, just ask: most questions can be answered by other community members too if you ask on an IRC channel. If nobody answers, please ask on the bug report or wiki page related to the problem; don't just give up.

Communicate that you work on a task

Do not ask if you can work on a task. You do not need to announce your plans before you start working on a bug, but it would be welcome. You are welcome to set yourself as the assignee in a task: Use the dropdown Add Action… → Assign/Claim in Phabricator. At the latest when you are close to proposing a patch for the task, it is good to announce in a comment that you are working on it. Your announcement helps others to not work on the bug at the same time and to not duplicate work.

Also note that if a task already has a recent link to a patch in Gerrit and has the project "Patch-For-Review" associated in Phabricator, choose a different task to work on instead – avoid duplicating work. If an existing patch in Gerrit has not been merged and has not seen any changes for a long time, you could also pick up that existing patch and improve it, based on the feedback in Gerrit and in the task.

If you stop working on a task, remove yourself as the assignee of the task, so others know that they can work on the task and don't expect you to still work on it.

By communicating early you will get more attention, feedback and help from community members.

Appendice

I collaboratori di MediaWiki sono al lavoro a Bangalore, in India.

PHP

MediaWiki è programmato in PHP, perciò devi avere destrezza con il linguaggio PHP per contribuire a MediaWiki.

Apprendere il PHP
  • Tutorial di PHP — Disponibile in molte lingue diverse. Se non apprendi il linguaggio PHP ma sai programmare in altri linguaggi informatici, per te il PHP sarà facile da apprendere.
  • PHP Programming at Wikibooks.
  • PHP topic at Wikiversity.
PHP resources
Stuff to know
  • The script maintenance/eval.php in MediaWiki provides a basic PHP interpreter with MediaWiki objects and classes loaded.
  • Also, the script maintenance/shell.php in MediaWiki is a replacement of maintenance/eval.php based on PsySH, see Manual:Shell.php.

Database

Many features require some amount of database manipulation, so you'll often need to be familiar with MySQL/MariaDB.

Learn MySQL/MariaDB
MySQL/MariaDB resources
Stuff to know
  • Test your code with MySQL/MariaDB.
    • MediaWiki currently uses MySQL and MariaDB as the primary database back-end. It also supports other DBMSes, such as PostgreSQL and SQLite. However, almost all developers use MySQL/MariaDB and don't test other DBs, which consequently break on a regular basis. You're therefore advised to use MySQL/MariaDB when testing patches, unless you're specifically trying to improve support for another DB. In the latter case, make sure you're careful not to break MySQL/MariaDB (or write queries that are horribly inefficient in it), since MySQL/MariaDB is what everybody else uses.

JavaScript and CSS

JavaScript and CSS have become omnipresent in front-end code. You don't have to be familiar with JavaScript, jQuery and CSS to work on MediaWiki, but you might need to, depending on what you choose to work on.

Learn JavaScript and CSS
JavaScript and CSS resources

MediaWiki

The MediaWiki code base is large and some parts are ugly; don't be overwhelmed by it. When you're first starting off, aim to write features or fix bugs which only touch a small region of code.

MediaWiki basics and must-reads
MediaWiki resources

MediaWiki extensions

If you choose to work on MediaWiki extensions code, the following links provide more information.

MediaWiki extensions basics
MediaWiki extensions resources

Vedi anche

  1. ↑ MediaWiki ha supporti per DBMS oltre a MySQL e MariaDB, incluso anche Oracle, PostgreSQL, SQLite, e Microsoft SQL Server.
  2. ↑ Developers are a mix of volunteers and paid staff (or contractors) for various organizations. For a full list of who works on the MediaWiki code, read the Sviluppatori article.
  3. ↑ Browse the source code and revisions of code repositories at https://phabricator.wikimedia.org/diffusion/ or download the source code to your system by using Gerrit.
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