Vendor the external cookbooks

Knife-Zero doesn't include Berkshelf support, so vendoring everything in
the repo is convenient again

cookbooks/ntp/recipes/mac_os_x_client.rb

@@ -0,0 +1,32 @@
+#
+# Cookbook:: ntp
+# Recipe:: mac_os_x_client
+# Author:: Antek S. Baranski (<antek.baranski@gmail.com>)
+#
+# Copyright:: 2016-2017, Roblox, Inc
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Do not continue if trying to run the Mac OS X recipe on non-OS X platform
+return 'The ntp::mac_os_x_client recipe only supports Mac OS X' unless platform_family?('mac_os_x')
+
+# Mac OS X 10.11+ does not allow for many NTP settings
+execute 'systemsetup -setnetworktimeserver' do
+  command "systemsetup -setnetworktimeserver #{node['ntp']['servers'][0]}"
+  not_if "systemsetup -getnetworktimeserver | grep -F #{node['ntp']['servers'][0]}"
+end
+
+execute 'systemsetup -setusingnetworktime' do
+  command 'systemsetup -setusingnetworktime on'
+  not_if 'systemsetup -getusingnetworktime | grep On'
+end