[dev_setup] Cache Erlang tarballs

To speed up repeated installation on slow links.

Change-Id: I575c76ff167a07c7174d4893c65a6bbc7b9e559d

dev_setup/cookbooks/deployment/attributes/default.rb

@@ -9,3 +9,4 @@ default[:deployment][:domain] = "vcap.me"
 default[:deployment][:log_path] = File.join(deployment[:home], "log")
 default[:deployment][:profile] = File.expand_path(File.join(ENV["HOME"], ".cloudfoundry_deployment_profile"))
 default[:deployment][:local_run_profile] = File.expand_path(File.join(ENV["HOME"], ".cloudfoundry_deployment_local"))
+default[:deployment][:setup_cache] = File.join("", "var", "cache", "dev_setup")

dev_setup/cookbooks/deployment/recipes/default.rb

@@ -13,7 +13,7 @@ node[:postgresql][:host] ||= cf_local_ip
 
 [node[:deployment][:home], File.join(node[:deployment][:home], "deploy"), node[:deployment][:log_path],
  File.join(node[:deployment][:home], "sys", "log"), node[:deployment][:config_path],
- File.join(node[:deployment][:config_path], "staging")].each do |dir|
+ File.join(node[:deployment][:config_path], "staging"), node[:deployment][:setup_cache]].each do |dir|
   directory dir do
     owner node[:deployment][:user]
     group node[:deployment][:group]

dev_setup/cookbooks/erlang/recipes/default.rb

@@ -1,18 +1,17 @@
-#
 # Cookbook Name:: erlang
 # Recipe:: default
 #
-# Copyright 2011, VMware
+# Copyright 2012, VMware
 #
 #
 %w[ build-essential libncurses5-dev openssl libssl-dev ].each do |pkg|
   package pkg
 end
 
-remote_file File.join("", "tmp", "otp_src_#{node[:erlang][:version]}.tar.gz") do
+remote_file File.join(node[:deployment][:setup_cache], "otp_src_#{node[:erlang][:version]}.tar.gz") do
   owner node[:deployment][:user]
   source node[:erlang][:source]
-  not_if { ::File.exists?(File.join("", "tmp", "otp_src_#{node[:erlang][:version]}.tar.gz")) }
+  checksum "849d050b59821e9f2831fee2e3267d84b410eee860a55f6fc9320cc00b5205bd"
 end
 
 directory node[:erlang][:path] do