Add help link to the top of history pages

It links to https://meta.wikimedia.org/wiki/Special:MyLanguage/Help:Page_history
but the target can be changed locally by creating
"MediaWiki:History-helppage".

Bug: T124885
Change-Id: Iffd396ea9dfb5216fa65ed9780f3c788fde4a3e5

diff --git a/includes/actions/HistoryAction.php b/includes/actions/HistoryAction.php
index ca47fce..43260d0 100644 (file)
--- a/includes/actions/HistoryAction.php
+++ b/includes/actions/HistoryAction.php
@@ -132,6 +132,8 @@ class HistoryAction extends FormlessAction {
                        return;
                }
 
+               $this->addHelpLink( '//meta.wikimedia.org/wiki/Special:MyLanguage/Help:Page_history', true );
+
                // Fail nicely if article doesn't exist.
                if ( !$this->page->exists() ) {
                        $out->addWikiMsg( 'nohistory' );