Add Dangerfile and CircleCI config

.circleci/config.yml

@@ -0,0 +1,23 @@
+version: 2
+jobs:
+  build:
+    docker:
+       - image: circleci/ruby:2.5.1-browsers
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+      - run:
+          name: Install Danger
+          command: gem install danger
+      - run:
+          name: Run Danger
+          command: danger
+
+workflows:
+  version: 2
+  danger-flow:
+    jobs:
+      - build:
+          context: Danger

CHANGELOG.md

@@ -5,6 +5,7 @@ This file is used to list changes made in each version of the apache2 cookbook.
 ## v6.0.0 (tbc)
 
 - Drop Chef 12 support
+- Add Danger and CircleCI support
 
 ## v5.0.1 (2017-09-01)
 

Dangerfile

@@ -0,0 +1,40 @@
+# Reference: http://danger.systems/reference.html
+
+# A pull request summary is required. Add a description of the pull request purpose.
+# Add labels to the pull request in github to identify the type of change. https://help.github.com/articles/applying-labels-to-issues-and-pull-requests/
+# Changelog must be updated for each pull request.
+# Warnings will be issued for:
+#    Pull request with more than 400 lines of code changed
+#    Pull reqest that change more than 5 lines without test changes
+
+def code_changes?
+  code = %w(libraries attributes recipes resources)
+  code.each do |location|
+    return true unless git.modified_files.grep(/#{location}/).empty?
+  end
+  false
+end
+
+def test_changes?
+  tests = %w(spec test .kitchen.yml .kitchen.dokken.yml)
+  tests.each do |location|
+    return true unless git.modified_files.grep(/#{location}/).empty?
+  end
+  false
+end
+
+fail 'Please provide a summary of your Pull Request.' if github.pr_body.length < 10
+
+fail 'Please add labels to this Pull Request' if github.pr_labels.empty?
+
+warn 'This is a big Pull Request.' if git.lines_of_code > 400
+
+# Require a CHANGELOG entry for non-test changes.
+if !git.modified_files.include?('CHANGELOG.md') && code_changes?
+  fail 'Please include a [CHANGELOG](https://github.com/sous-chefs/line-cookbook/blob/master/CHANGELOG.md) entry.'
+end
+
+# A sanity check for tests.
+if git.lines_of_code > 5 && code_changes? && !test_changes?
+  warn 'This Pull Request is probably missing tests.'
+end

Gemfile

@@ -6,4 +6,4 @@
 
 source 'https://rubygems.org'
 
-gem 'stove'
+gem 'danger'