Add rake task for maintainers

Gemfile

 source 'https://rubygems.org'
 
+group :rake do
+  gem 'rake'
+  gem 'tomlrb'
+end
+
 group :lint do
   gem 'foodcritic', '~> 5.0'
   gem 'rubocop', '~> 0.34'
-  gem 'rake'
 end
 
 group :unit do

MAINTAINERS.md

+<!-- This is a generated file. Please do not edit directly -->
+
+# Maintainers
+This file lists how this cookbook project is maintained. When making changes to the system, this
+file tells you who needs to review your patch - you need a simple majority of maintainers
+for the relevant subsystems to provide a :+1: on your pull request. Additionally, you need
+to not receive a veto from a Lieutenant or the Project Lead.
+
+Check out [How Cookbooks are Maintained](https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/CONTRIBUTING.MD) 
+for details on the process and how to become a maintainer or the project lead.
+
+# Project Maintainer
+* [Tim Smith](https://github.com/tas50)
+
+# Maintainers
+* [Jennifer Davis](https://github.com/sigje)
+* [Sean OMeara](https://github.com/someara)
+* [Tim Smith](https://github.com/tas50)
+* [Thom May](https://github.com/thommay)

MAINTAINERS.toml

+#
+# This file is structured to be consumed by both humans and computers.
+# It is a TOML document containing Markdown
+#
+[Preamble]
+  title = "Maintainers"
+  text = """
+This file lists how this cookbook project is maintained. When making changes to the system, this
+file tells you who needs to review your patch - you need a simple majority of maintainers
+for the relevant subsystems to provide a :+1: on your pull request. Additionally, you need
+to not receive a veto from a Lieutenant or the Project Lead.
+
+Check out [How Cookbooks are Maintained](https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/CONTRIBUTING.MD) 
+for details on the process and how to become a maintainer or the project lead.
+"""
+
+[Org]
+  [Org.Components]
+    [Org.Components.Core]
+      title = "Project Maintainer"
+
+      lieutenant = 'tas50'
+    
+      maintainers = [
+        'sigje',
+        'someara',
+        'tas50',
+        'thommay'
+      ]
+
+[people]
+  [people.sigje]
+    name = "Jennifer Davis"
+    github = "sigje"
+
+  [people.someara]
+    name = "Sean OMeara"
+    github = "someara"
+
+  [people.tas50]
+    name = "Tim Smith"
+    github = "tas50"
+
+  [people.thommay]
+    name = "Thom May"
+    github = "thommay"

Rakefile

@@ -3,6 +3,8 @@ require 'rubocop/rake_task'
 require 'foodcritic'
 require 'kitchen'
 
+require_relative 'tasks/maintainers'
+
 # Style tests. Rubocop and Foodcritic
 namespace :style do
   desc 'Run Ruby style checks'

tasks/maintainers.rb

+#
+# Copyright:: Copyright (c) 2015 Chef Software, Inc.
+# License:: Apache License, Version 2.0
+#
+# 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.
+#
+
+require 'rake'
+
+SOURCE = File.join(File.dirname(__FILE__), '..', 'MAINTAINERS.toml')
+TARGET = File.join(File.dirname(__FILE__), '..', 'MAINTAINERS.md')
+
+begin
+  require 'tomlrb'
+  task default: 'maintainers:generate'
+
+  namespace :maintainers do
+    desc 'Generate MarkDown version of MAINTAINERS file'
+    task :generate do
+      @toml = Tomlrb.load_file SOURCE
+      out = "<!-- This is a generated file. Please do not edit directly -->\n\n"
+
+      out << preamble
+      out << project_lieutenant
+      out << all_maintainers
+
+      File.open(TARGET, 'w') do |fn|
+        fn.write out
+      end
+    end
+  end
+
+rescue LoadError
+  STDERR.puts "\n*** TomlRb not available.\n\n"
+end
+
+private
+
+def preamble
+  <<-EOL
+# #{@toml['Preamble']['title']}
+#{@toml['Preamble']['text']}
+EOL
+end
+
+def project_lieutenant
+  <<-EOL
+# #{@toml['Org']['Components']['Core']['title']}
+#{github_link(@toml['Org']['Components']['Core']['lieutenant'])}
+
+EOL
+end
+
+def all_maintainers
+  text = "# Maintainers\n"
+  @toml['Org']['Components']['Core']['maintainers'].each do |m|
+    text << "#{github_link(m)}\n"
+  end
+  text
+end
+
+def github_link(person)
+  name = @toml['people'][person]['name']
+  github = @toml['people'][person]['github']
+  "* [#{name}](https://github.com/#{github})"
+end