Add Chef 12 and Ruby 2.2 to the build matrix

Build with Chef 12 only on Ruby 2.x.

Author: Teemu Matilainen

.travis.yml

@@ -3,11 +3,16 @@ language: ruby
 bundler_args: --without=development:integration
 
 rvm:
-  - 1.9.3
   - 2.0.0
-  - 2.1.1
+  - 2.1
+  - 2.2
 env:
   - CHEF_VERSION="~> 11"
+  - CHEF_VERSION="~> 12"
+matrix:
+  include:
+    - rvm: 1.9.3
+      env: CHEF_VERSION="~> 11"
 
 notifications:
   email: [email protected]

Gemfile

@@ -1,7 +1,7 @@
 source 'https://rubygems.org/'
 
 gem 'berkshelf', '~> 3.0'
-gem 'chef', ENV.fetch('CHEF_VERSION', '~> 11.0')
+gem 'chef', ENV.fetch('CHEF_VERSION', '~> 12.0')
 gem 'chefspec', '~> 4.0'
 gem 'foodcritic', '~> 4.0'
 gem 'rake'