Merge pull request #1772 from chef/adamleff/changelog-updater

Update changelog generator to work from PRs only

Rakefile

@@ -4,6 +4,7 @@
 require 'bundler'
 require 'bundler/gem_tasks'
 require 'rake/testtask'
+require_relative 'tasks/changelog'
 require_relative 'tasks/maintainers'
 
 # The docs tasks rely on ruby-progressbar. If we can't load it, then don't
@@ -128,14 +129,6 @@ end
 # Check the requirements for running an update of this repository.
 def check_update_requirements
   require_command 'git'
-  require_command 'github_changelog_generator', "\n"\
-    "For more information on how to install it see:\n"\
-    "  https://github.com/skywinder/github-changelog-generator\n"
-  require_env 'CHANGELOG_GITHUB_TOKEN', "\n"\
-    "Please configure this token to make sure you can run all commands\n"\
-    "against GitHub.\n\n"\
-    "See github_changelog_generator homepage for more information:\n"\
-    "  https://github.com/skywinder/github-changelog-generator\n"
 end
 
 # Show the current version of this gem.
@@ -144,12 +137,6 @@ task :version do
   inspec_version
 end
 
-desc 'Generate the changelog'
-task :changelog do
-  require_relative 'lib/inspec/version'
-  system "github_changelog_generator -u chef -p inspec --future-release v#{Inspec::VERSION} --since-tag 0.7.0"
-end
-
 # Update the version of this gem and create an updated
 # changelog. It covers everything short of actually releasing
 # the gem.

tasks/changelog.rb

@@ -0,0 +1,48 @@
+# encoding: utf-8
+# 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.
+#
+
+begin
+  require 'github_changelog_generator/task'
+  require 'mixlib/install'
+
+  namespace :changelog do
+    GitHubChangelogGenerator::RakeTask.new :update do |config|
+      # Get the version from the "to" environment variable first (as used in the
+      # bump_version Rake task). If it doesn't exist, use Inspec::VERSION. We can't rely
+      # on Inspec::VERSION because we may have already "require'd" Inspec by the time
+      # we've gotten here and the version has been bumped with bump_version.
+      config.future_release = ENV.fetch('to', "v#{Inspec::VERSION}")
+
+      # only generate changelog records for pull requests merged since v1.20.0
+      # which is the version we started tagging PRs for.
+      config.since_tag = 'v1.20.0'
+
+      # do not include any issues
+      config.max_issues = 0
+      config.add_issues_wo_labels = false
+
+      # Group PRs by section accordingly
+      config.enhancement_labels = ['enhancement', 'feature request', 'new feature']
+      config.bug_labels = ['bug']
+      config.exclude_labels = ['docs', 'duplicate', 'invalid', 'question', 'wontfix', 'www', 'Exclude From Changelog']
+    end
+  end
+
+  task changelog: 'changelog:update'
+rescue LoadError
+  puts 'github_changelog_generator is not available.'
+end