updating time:

Gemfile.lock

@@ -29,7 +29,7 @@ GEM
       tzinfo (~> 1.1)
     addressable (2.3.6)
     arel (5.0.1.20140414130214)
-    bcrypt (3.1.7)
+    bcrypt (3.1.9)
     better_errors (2.0.0)
       coderay (>= 1.0.0)
       erubis (>= 2.6.6)
@@ -63,23 +63,24 @@ GEM
     daemons (1.1.9)
     dalli (2.7.2)
     debug_inspector (0.0.2)
-    devise (3.3.0)
+    devise (3.4.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
       railties (>= 3.2.6, < 5)
+      responders
       thread_safe (~> 0.1)
       warden (~> 1.2.3)
     diff-lcs (1.2.5)
     erubis (2.7.0)
     eventmachine (1.0.3)
-    execjs (2.2.1)
-    factory_girl (4.4.0)
+    execjs (2.2.2)
+    factory_girl (4.5.0)
       activesupport (>= 3.0.0)
-    factory_girl_rails (4.4.1)
-      factory_girl (~> 4.4.0)
+    factory_girl_rails (4.5.0)
+      factory_girl (~> 4.5.0)
       railties (>= 3.0.0)
-    ffi (1.9.3)
-    foundation-rails (5.4.3.0)
+    ffi (1.9.6)
+    foundation-rails (5.4.5.0)
       railties (>= 3.1.0)
       sass (>= 3.2.0)
     friendly_id (5.0.4)
@@ -104,10 +105,10 @@ GEM
       thor (>= 0.14, < 2.0)
     json (1.8.1)
     kgio (2.9.2)
-    kramdown (1.4.1)
+    kramdown (1.5.0)
     launchy (2.2.0)
       addressable (~> 2.3)
-    listen (2.7.9)
+    listen (2.8.0)
       celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
@@ -121,13 +122,12 @@ GEM
       railties (>= 3.0.0, < 5.0.0)
     method_source (0.8.2)
     mime-types (1.25.1)
-    mini_magick (3.8.0)
-      subexec (~> 0.2.1)
-    mini_portile (0.6.0)
-    minitest (5.4.1)
+    mini_magick (4.0.0)
+    mini_portile (0.6.1)
+    minitest (5.4.3)
     multi_json (1.10.1)
-    nokogiri (1.6.3.1)
-      mini_portile (= 0.6.0)
+    nokogiri (1.6.4.1)
+      mini_portile (~> 0.6.0)
     orm_adapter (0.5.0)
     pg (0.17.1)
     polyglot (0.3.5)
@@ -142,7 +142,7 @@ GEM
     rack (1.5.2)
     rack-cache (1.2)
       rack (>= 0.4)
-    rack-contrib (1.1.0)
+    rack-contrib (1.2.0)
       rack (>= 0.9.1)
     rack-test (0.6.2)
       rack (>= 1.0)
@@ -166,7 +166,7 @@ GEM
     rb-fsevent (0.9.4)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)
-    rdoc (4.1.1)
+    rdoc (4.1.2)
       json (~> 1.4)
     redis (3.1.0)
     redis-actionpack (4.0.0)
@@ -185,6 +185,8 @@ GEM
       redis-store (~> 1.1.0)
     redis-store (1.1.4)
       redis (>= 2.2)
+    responders (1.1.2)
+      railties (>= 3.2, < 4.2)
     rspec (2.13.0)
       rspec-core (~> 2.13.0)
       rspec-expectations (~> 2.13.0)
@@ -201,10 +203,10 @@ GEM
       rspec-expectations (~> 2.13.0)
       rspec-mocks (~> 2.13.0)
     sass (3.2.19)
-    sass-rails (4.0.3)
+    sass-rails (4.0.4)
       railties (>= 4.0.0, < 5.0)
-      sass (~> 3.2.0)
-      sprockets (~> 2.8, <= 2.11.0)
+      sass (~> 3.2.2)
+      sprockets (~> 2.8, < 2.12)
       sprockets-rails (~> 2.0)
     sdoc (0.4.1)
       json (~> 1.7, >= 1.7.7)
@@ -217,27 +219,26 @@ GEM
     sitemap_generator (5.0.5)
       builder
     slop (3.6.0)
-    sprockets (2.11.0)
+    sprockets (2.11.3)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
-    sprockets-rails (2.1.4)
+    sprockets-rails (2.2.0)
       actionpack (>= 3.0)
       activesupport (>= 3.0)
-      sprockets (~> 2.8)
-    subexec (0.2.3)
+      sprockets (>= 2.8, < 4.0)
     terminal-table (1.4.5)
     textacular (3.2.0)
       activerecord (>= 3.0, < 4.2)
-    thin (1.6.2)
-      daemons (>= 1.0.9)
-      eventmachine (>= 1.0.0)
-      rack (>= 1.0.0)
+    thin (1.6.3)
+      daemons (~> 1.0, >= 1.0.9)
+      eventmachine (~> 1.0)
+      rack (~> 1.0)
     thor (0.19.1)
     thread_safe (0.3.4)
     tilt (1.4.1)
-    timers (4.0.0)
+    timers (4.0.1)
       hitimes
     treetop (1.4.15)
       polyglot

app/controllers/posts_controller.rb

@@ -23,9 +23,12 @@ def search
   def archive
     posts = Post.published.sorted.reverse_order
     years = (2009..Time.now.year).to_a.reverse
-    @posts_by_year = {}
-    years.each do |year|
-      @posts_by_year[year.to_s] = posts.select { |a| a.created_at.year == year }
+    if stale?(etag: posts, last_modified: posts.first.updated_at, public: true)
+      @posts_by_year = {}
+      years.each do |year|
+        @posts_by_year[year.to_s] = posts.select { |a| a.created_at.year == year }
+      end
+      expires_in 7.days, public: true
     end
   end
 

app/helpers/application_helper.rb

@@ -3,9 +3,9 @@
 module ApplicationHelper
 
   def markdown_filter(text)
-    options = {
-      coderay_line_numbers: :table
-    }
+     options = {
+       coderay_line_numbers: nil
+     }
     Kramdown::Document.new(text, options).to_html.html_safe
   end
 

app/views/posts/show.html.erb

@@ -12,17 +12,7 @@
         <p><% if @post.tags.any? %>Filed under: <%= tags_link %><% end %></p>
       </div>
       <%= render 'links' %>
-      <!-- left_boombox -->
-      <ins class="adsbygoogle"
-        style="display:inline-block;width:300px;height:250px"
-        data-ad-client="ca-pub-8462997423242867"
-        data-ad-slot="7595780432"></ins>
       <div id="disqus_thread"></div>
-      <!-- right_boombox -->
-      <ins class="adsbygoogle"
-        style="display:inline-block;width:300px;height:250px"
-        data-ad-client="ca-pub-8462997423242867"
-        data-ad-slot="3025980039"></ins>
       <%= render 'links' %>
     </div>