ikiwiki supports adding "History" links to the top of pages to browse the revision history of a page. This is enabled by the `historyurl` setting, which is used to specify the URL to a web interface such as [[ViewVC]] (for Subversion) or [[Gitweb]]. In that url, "\[[file]]" is replaced with the name of the file to view. The [[plugins/repolist]] plugin can supplement this information with urls to the underlying repository of the wiki.