use Rack::Cache in production.

CHANGES.md

@@ -1,5 +1,11 @@
 == 0.2.0 (unreleased)
 
+Upgrade Notes:
+
+* Schnitzelpress now adds Rack::Cache in production by itself; you no longer need to do it in your blog app's config.ru file. It is recommended that you remove the Rack::Cache invocation from your app.
+
+Changes:
+
 * Schnitzelpress now has a light-weight, custom-built asset pipeline that serves all Javascripts and Stylesheets as one single file each, compressed and ready for hardcore caching.
 * Post with dates now use double-digit days and months in their canonical URLs. (Your existing posts will forward to the new canonical URLs automatically.)
 * Rebranded from SchnitzelPress to Schnitzelpress. (You'll probably need to change your blog app's code for this.)

lib/schnitzelpress.rb

@@ -6,6 +6,7 @@
 require 'redcarpet'
 require 'schnitzelstyle'
 require 'rack/contrib'
+require 'rack/cache'
 require 'mongoid'
 require 'chronic'
 

lib/schnitzelpress/app.rb

@@ -5,6 +5,7 @@ class App < Sinatra::Base
     set :views, ['./views/', File.expand_path('../../views/', __FILE__)]
     set :public_folder, File.expand_path('../../public/', __FILE__)
 
+    use Rack::Cache if Schnitzelpress.env.production?
     use Rack::ShowExceptions
     use Rack::StaticCache,
       :urls => STATIC_PATHS,

lib/templates/new_blog/Gemfile

@@ -1,7 +1,6 @@
 source 'https://rubygems.org'
 
 gem 'unicorn', '~> 4.2.0'
-gem 'rack-cache', '~> 1.1.0', :require => 'rack/cache'
 gem 'schnitzelpress', '~> 0.1.0'
 
 group :development do

lib/templates/new_blog/config.ru.tt

@@ -1,18 +1,6 @@
 $stdout.sync = true
 require File.expand_path("../app.rb", __FILE__)
 
-# Add some caching. This is designed to work out of the box
-# on Heroku, but feel free to change this if eg. you'd prefer
-# to use Memcache.
-#
-if Schnitzelpress.env.production?
-  use Rack::Cache, {
-    :verbose     => true,
-    :metastore   => URI.encode("file:/tmp/cache/meta"),
-    :entitystore => URI.encode("file:/tmp/cache/body")
-  }
-end
-
 # Run the app, with support for files in ./public/
 #
 run App.with_local_files

schnitzelpress.gemspec

@@ -18,6 +18,7 @@ Gem::Specification.new do |gem|
   # base dependencies
   gem.add_dependency 'rack', '~> 1.4.1'
   gem.add_dependency 'rack-contrib', '~> 1.1.0'
+  gem.add_dependency 'rack-cache', '~> 1.1.0'
   gem.add_dependency 'sinatra', '~> 1.3.2'
   gem.add_dependency 'activesupport', '~> 3.2.0'