From 0cb303f09fe3d2f63c478147ccaa24360c9732dd Mon Sep 17 00:00:00 2001
From: "Watal M. Iwasaki" <heavywatal@users.noreply.github.com>
Date: Thu, 2 Apr 2020 18:07:33 +0900
Subject: [PATCH] Check page.nil? before page.wiki (#1535)

---
 lib/gollum/app.rb | 2 +-
 test/test_app.rb  | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/gollum/app.rb b/lib/gollum/app.rb
index ba9bbcc2..058dfbe4 100644
--- a/lib/gollum/app.rb
+++ b/lib/gollum/app.rb
@@ -413,8 +413,8 @@ module Precious
         @page      = wikip.page
         @page_num  = [params[:page_num].to_i, 1].max
         @max_count = settings.wiki_options.fetch(:pagination_count, 10)
-        @wiki      = @page.wiki
         unless @page.nil?
+          @wiki      = @page.wiki
           @versions = @page.versions(
             per_page: @max_count,
             page_num: @page_num,
diff --git a/test/test_app.rb b/test/test_app.rb
index 0d4c2556..c18efa9f 100644
--- a/test/test_app.rb
+++ b/test/test_app.rb
@@ -647,6 +647,14 @@ EOF
     assert_match /meta name="robots" content="noindex, nofollow"/, last_response.body
   end
 
+  test 'history/NO-EXIST redirects to Home' do
+    get '/gollum/history/NO-EXIST'
+    follow_redirect!
+    assert_equal last_request.fullpath, '/'
+    # redirect again from / to /Home
+    assert_equal last_response.status, 302
+  end
+
   def app
     Precious::App
   end