User:Dixtosa/lastDiff.js

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$.when( mw.loader.using( ['mediawiki.util']), $.ready ).then(function() { 
	// Not on Special pages
	if ( mw.config.get( 'wgCanonicalSpecialPageName' ) ) {
		return;
	}
	var url = mw.util.getUrl( mw.config.get( 'wgPageName' ) ) +
		'?diff=' + mw.config.get( 'wgCurRevisionId' ),
		$link = $( '#ca-lastdiff' ).find( 'a' );
	if ( $link.length ) {
		$link.attr( 'href', url );
	} else {
		mw.util.addPortletLink( 'p-views', url, 'Last', 'ca-lastdiff', 'Show most recent diff', null, "#ca-view");
	}
});