Gerrit

Gerrit is the tool we use to handle code reviews. Code review is at the heart of our development process. Any software contribution to MediaWiki or any other Wikimedia hosted project is reviewed and approved at gerrit.wikimedia.org before being merged to our Git repositories.

All Gerrit users can review contributions. Maintainers have the special rights to approve or reject contributions.

Prerequisites

If you are a novice developer, read New Developers. If you know that you will work on MediaWiki core and MediaWiki extensions, read How to become a MediaWiki hacker.

Learn how to contribute to MediaWiki development and how to set up a functioning pre-configured development installation of MediaWiki.

If you are an experienced developer, visit the Developer hub instead.

Getting started

Gerrit/Tutorial - A thorough guide to using Git and Gerrit for MediaWiki development
Gerrit/Tutorial/tl;dr - A very short guide to using Git and Gerrit for MediaWiki development

Further help on Gerrit

Gerrit/Advanced usage - How to do things "the hard way" in Gerrit
Gerrit/Troubleshooting - Problems and how to solve them
Gerrit/Navigation - How to navigate Gerrit's web interface
Gerrit/FAQ - Frequently asked questions concerning how to use Git and Gerrit
Gerrit/GitHub - About integration with the GitHub service

For code contributors / authors

Gerrit/Code review/Getting reviews - Learn how to get your patches reviewed
Gerrit/Commit message guidelines - Learn how to write good commit summaries

For code reviewers

Gerrit/Code review - Learn how to perform code review. Your help reviewing changes is welcome!
Gerrit/Privilege policy - Development policy for reviewers with merging rights in Gerrit

For project owners / administration

Gerrit/New repositories - How to create a new project in Gerrit
Gerrit/Project ownership - How to become the owner of a project in Gerrit
Gerrit/Privilege policy - Development policy for reviewers with merging rights in Gerrit
Gerrit/Inactive projects - Guidelines how to handle inactive projects
Gerrit/L10n-bot - How to add translatewiki.net integration translation updates

Download code without a Gerrit account

If you only want to get the code and do not plan to propose changes:

To simply browse & fork our code you can use the GitHub mirrors. Also see Gerrit/GitHub.
To make an anonymous git clone of the core of MediaWiki, git clone https://gerrit.wikimedia.org/r/mediawiki/core.git.