To git or not to git, that is no more the question.
The question has been simplified to when.
2012/2/16 Sumana Harihareswara <sumanah@wikimedia.org> on wikitech-l
If you develop MediaWiki core, or work on extensions that the Wikimedia
Foundation deploys, you should prepare for your development workflow to
switch on the weekend of March 3rd. Instead of Subversion and the Code
Review tool at mediawiki.org, we will be using Git and Gerrit.
Summary:
https://blog.wikimedia.org/2012/02/15/wikimedia-engineering-moving-from-subversion-to-git/
Affected projects:
https://www.mediawiki.org/wiki/Git/Conversion#Affected_development_projects
If you work on an extension that the Wikimedia Foundation does not use,
or on a non-MediaWiki project hosted at svn.wikimedia.org, you have more
time to decide. Talk it over with your community and decide whether you
would like to move to Git immediately, move to Git sometime over the
next several months, or move to another hosting provider sometime before
mid-2013. We would like to gradually migrate all projects currently on
Wikimedia's Subversion repository so that we can make all of
svn.wikimedia.org read-only by the middle of 2013, and thus only have to
support one source control infrastructure.
New workflow instructions, open issues, docs, etc.:
https://www.mediawiki.org/wiki/Git
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