Much better build server provisioning

Including selection of correct ndk architecture, caching and performance
improvements, better configurability, etc.

buildserver/cookbooks/android-ndk/recipes/default.rb

@@ -7,7 +7,12 @@ script "setup-android-ndk" do
   user node[:settings][:user]
   cwd "/tmp"
   code "
-    tar jxvf /vagrant/cache/android-ndk-r8e-linux-x64.tar.bz2
+    if [ `uname -m` == 'x86_64' ] ; then
+       SUFFIX = '_64'
+    else
+       SUFFIX = ''
+    fi
+    tar jxvf /vagrant/cache/android-ndk-r8e-linux-x86$SUFFIX.tar.bz2
     mv android-ndk-r8e #{ndk_loc}
   "
   not_if do

buildserver/cookbooks/android-sdk/recipes/default.rb

@@ -37,10 +37,16 @@ end
     user user
     cwd "/tmp"
     code "
-      #{sdk_loc}/tools/android update sdk --no-ui -a -t #{sdk} <<X
+      if [ -f /vagrant/cache/platforms/#{sdk}.tar.gz ] ; then
+        echo Installing from cache
+        tar -C #{sdk_loc}/platforms -z -x -f /vagrant/cache/platforms/#{sdk}.tar.gz
+      else
+        echo Installing via 'android'
+        #{sdk_loc}/tools/android update sdk --no-ui -a -t #{sdk} <<X
 y
 
 X
+      fi
     "
     not_if "test -d #{sdk_loc}/platforms/#{sdk}"
   end
@@ -54,10 +60,16 @@ end
     user user
     cwd "/tmp"
     code "
-       #{sdk_loc}/tools/android update sdk --no-ui -a -t #{sdk} <<X
+      if [ -f /vagrant/cache/add-ons/#{sdk}.tar.gz ] ; then
+        echo Installing from cache
+        tar -C #{sdk_loc}/add-ons -z -x -f /vagrant/cache/add-ons/#{sdk}.tar.gz
+      else
+        echo Installing via 'android'
+        #{sdk_loc}/tools/android update sdk --no-ui -a -t #{sdk} <<X
 y
 
 X
+      fi
     "
 
     not_if "test -d #{sdk_loc}/add-ons/#{sdk}"