Vendor the external cookbooks

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

cookbooks/nginx/libraries/helpers.rb

@@ -0,0 +1,38 @@
+#
+# Cookbook:: nginx
+# Library:: helpers
+#
+# Author:: Tim Smith (<tsmith@chef.io>)
+#
+# Copyright:: 2016-2017, Chef Software, 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.
+#
+
+# simple helper module for the nginx cookbook
+module NginxRecipeHelpers
+  # pidfile is hard to determine on Debian systems.
+  # Upstream packages and older distro releases use '/var/run/nginx.pid'
+  # systemd based distros and Ubuntu 14.04 use '/run/nginx.pid' for their
+  # packages
+  def pidfile_location
+    if (node['nginx']['repo_source'].nil? || %w(distro passenger).include?(node['nginx']['repo_source'])) &&
+       (node['init_package'] == 'systemd' || node['platform_version'].to_f == 14.04)
+      '/run/nginx.pid'
+    else
+      '/var/run/nginx.pid'
+    end
+  end
+end
+
+Chef::Resource.send(:include, NginxRecipeHelpers)