From 0403884224f99a3196b1f49f9cf57bc631dab896 Mon Sep 17 00:00:00 2001
From: Buck Doyle <buck@travis-ci.org>
Date: Thu, 14 Apr 2016 15:54:05 +0200
Subject: [PATCH] Add Redis front-end to existing Ruby server

---
 waiter/lib/travis/web/app.rb | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/waiter/lib/travis/web/app.rb b/waiter/lib/travis/web/app.rb
index 1622b4d4..4faa5d2d 100644
--- a/waiter/lib/travis/web/app.rb
+++ b/waiter/lib/travis/web/app.rb
@@ -5,6 +5,7 @@ require 'delegate'
 require 'time'
 require 'json'
 require 'travis/utils/deep_merge'
+require 'redis'
 
 class Travis::Web::App
   autoload :AltVersions,    'travis/web/app/alt_versions'
@@ -82,7 +83,7 @@ class Travis::Web::App
     end
 
     def response_for(file, options = {})
-      content = File.read(file)
+      content = content_for(file)
       if fingerprinted?(file)
         headers = {
           'Content-Length'   => content.bytesize.to_s,
@@ -111,6 +112,17 @@ class Travis::Web::App
       [ 200, headers, [content] ]
     end
 
+    def content_for(file)
+      if index?(file)
+        redis = Redis.new
+        project = 'travis'
+        index_key = redis.get("#{project}:index:current")
+        redis.get("#{project}:index:#{index_key}")
+      else
+        content = File.read(file)
+      end
+    end
+
     def each_file
       Dir.glob(File.join(root, '**/*')) { |file| yield file if File.file?(file) }
     end