Merge pull request #1976 from jtimberman/refactor-chef

Refactor Chef recipes to utilize natural features of Chef

chef/cookbooks/diaspora/recipes/redis.rb

+case node['platform']
+when "debian"
+
+  remote_file "#{Chef::Config[:file_cache_path]}/redis-server_2.2.2-1_amd64.deb" do
+    source "wget http://ftp.us.debian.org/debian/pool/main/r/redis/redis-server_2.2.2-1_amd64.deb"
+  end
+
+  dpkg_package "redis-server" do
+    source "#{Chef::Config[:file_cache_path]}/redis-server_2.2.2-1_amd64.deb"
+  end  
+
+when "centos"
+
+  execute "refresh yum" do
+    command "yum update -y"
+  end
+
+  package "redis"
+
+end
+
+cookbook_file "/usr/local/etc/redis.conf" do
+  source "redis.conf"
+  mode 0755
+end
+
+directory "/usr/local/var/db/redis" do
+  recursive true
+end