Follow page renames in history view

bin/gollum

@@ -111,6 +111,12 @@ MSG
   opts.on("--no-live-preview", "Disable the live preview feature in page editor.") do
     wiki_options[:live_preview] = false
   end
+  opts.on("--follow-renames", "Follow pages across renames in the History view. Default except on jruby.") do
+    wiki_options[:follow_renames] = true
+  end
+  opts.on("--no-follow-renames", "Do not follow pages across renames in the History view.") do
+    wiki_options[:follow_renames] = false
+  end
   opts.on("--allow-uploads [MODE]", [:dir, :page], "Enable file uploads.",
     "If set to 'dir', Gollum will store all uploads in the '<git-repo>/uploads/' directory.",
     "If set to 'page', Gollum will store each upload at the currently edited page.") do |mode|

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

test/test_app_helpers.rb

@@ -4,6 +4,15 @@ require File.expand_path(File.join(File.dirname(__FILE__), "helper"))
 context "Precious::Helpers" do
   include Precious::Helpers
 
+  test "return git adapter" do
+    if defined?(Gollum::GIT_ADAPTER)
+      result = Gollum::GIT_ADAPTER
+    else
+      Gollum::GIT_ADAPTER = result = 'grit'
+    end
+    assert_equal result, git_adapter
+  end
+
   test "extracting paths from URLs" do
     assert_nil extract_path('Eye-Of-Sauron')
     assert_equal 'Mordor', extract_path('Mordor/Sauron')