Merge pull request #1225 from repotag/follow_renames

Follow page renames in history view. Close #565

lib/gollum/app.rb

@@ -404,7 +404,7 @@ module Precious
       @page     = wiki_page(params[:splat].first).page
       @page_num = [params[:page].to_i, 1].max
       unless @page.nil?
-        @versions = @page.versions :page => @page_num
+        @versions = @page.versions(:page => @page_num, :follow => settings.wiki_options.fetch(:follow_renames, git_adapter == 'rjgit' ? false : true))
         mustache :history
       else
         redirect to("/")

lib/gollum/helpers.rb

@@ -6,6 +6,10 @@ module Precious
 
     EMOJI_PATHNAME = Pathname.new(Gemojione.images_path).freeze
 
+    def git_adapter
+      defined?(Gollum::GIT_ADAPTER) ? Gollum::GIT_ADAPTER : DEFAULT_ADAPTER.match(/(.*)_adapter/)[1]
+    end
+
     def join_page_name(name, ext)
       "#{name}#{ext}"
     end