Extension:CloneDiff

CloneDiff is a MediaWiki extension that lets you compare pages on the local wiki to pages in one or more "clone wikis" - wikis that have some of the same page structure, though with possibly different contents in the pages. For pages that are different (or when the page only exists in the remote wiki), the extension lets you also import the current text on the remote wiki into the local wiki.

Installation
You then need to add one or more values for $wgCloneDiffWikis in order to use the extension. Each such value has to be an array of three elements: 'name', 'API URL' and 'URL'. Here is one example:

The 'clonediff' permission lets you dictate who can access the page Special:CloneDiff. By default, only administrators can. To enable, for instance, all users to access that page, you could add the following to LocalSettings.php:

Usage
If you are an administrator, you can make use of the CloneDiff functionality by simply going to the page "Special:CloneDiff" and following the instructions.

Credits
The CloneDiff extension was created by Yaron Koren for WikiWorks. Further modifications were made by Nischay Nahata for WikiWorks.