Add a synced folder to persist chef omnibus packages

Signed-off-by: Salim Afiune <[email protected]>

lib/kitchen/driver/vagrant.rb

@@ -143,6 +143,19 @@ def finalize_config!(instance)
         finalize_vm_hostname!
         finalize_pre_create_command!
         finalize_synced_folders!
+        # Verify if we are using the Provisioner::ChefBase that now has a config
+        # parameter for the Chef omnibus cache, if that is set then we would like
+        # to sync a local folder to the instance so we can take advantage of the
+        # cache packages that we might have, therefore we wont download a package
+        # we already have in the cache
+        if instance && instance.provisioner[:chef_omnibus_cache]
+          FileUtils.mkdir_p(local_kitchen_cache)
+          config[:synced_folders].push([
+              local_kitchen_cache,
+              instance.provisioner[:chef_omnibus_cache],
+              "create: true"
+            ])
+        end
         self
       end
 
@@ -389,6 +402,12 @@ def update_state(state)
         state[:rdp_port] = hash["RDPPort"] if hash["RDPPort"]
       end
 
+      # @return [String] full absolute path to the kitchen cache directory
+      # @api private
+      def local_kitchen_cache
+        @local_kitchen_cache ||= File.expand_path('~/.kitchen/cache')
+      end
+
       # @return [String] full local path to the directory containing the
       #   instance's Vagrantfile
       # @api private