github_changelog_generator.rb in chef-dk-1.1.16

- old
+ new
@@ -15,19 +15,37 @@
 # limitations under the License.
 #
 
 begin
   require "github_changelog_generator/task"
+  require "mixlib/install"
 
-  GitHubChangelogGenerator::RakeTask.new :changelog do |config|
-    config.user = "chef"
-    config.project = "chef-dk"
-    config.future_release = ChefDK::VERSION
-    config.enhancement_labels = "enhancement,Enhancement,New Feature,Feature".split(",")
-    config.bug_labels = "bug,Bug,Improvement,Upstream Bug".split(",")
-    config.exclude_labels = "duplicate,question,invalid,wontfix,no_changelog,Exclude From Changelog,Question,Discussion".split(",")
-#    Makes life easier by only generating changelogs between said tags.
-#    config.between_tags = "v0.15.15,v0.16.28".split(",")
+  namespace :changelog do
+    # Fetch the latest version from mixlib-install
+    latest_stable_version = Mixlib::Install.available_versions("chefdk", "stable").last
+
+    # Take the changelog from the latest stable release and put it into history.
+    desc "Archive current CHANGELOG to HISTORY"
+    task :archive do
+      changelog = Net::HTTP.get(URI("https://raw.githubusercontent.com/chef/chef-dk/v#{latest_stable_version}/CHANGELOG.md")).chomp.split("\n")
+      File.open("HISTORY.md", "w+") { |f| f.write(changelog[2..-4].join("\n")) }
+    end
+
+    # Run this to just update the changelog for the current release. This will
+    # take what is in HISTORY and generate a changelog of PRs between the most
+    # recent stable version and HEAD.
+    GitHubChangelogGenerator::RakeTask.new :update do |config|
+      config.future_release = "v#{ChefDK::VERSION}"
+      config.between_tags = ["v#{latest_stable_version}", "v#{ChefDK::VERSION}"]
+      config.max_issues = 0
+      config.add_issues_wo_labels = false
+      config.enhancement_labels = "enhancement,Enhancement,New Feature,Feature".split(",")
+      config.bug_labels = "bug,Bug,Improvement,Upstream Bug".split(",")
+      config.exclude_labels = "duplicate,question,invalid,wontfix,no_changelog,Exclude From Changelog,Question,Discussion".split(",")
+      config.header = "This changelog reflects the current state of chef-dk's master branch on github and may not reflect the current released version of chef-dk, which is [![Gem Version](https://badge.fury.io/rb/chef-dk.svg)](https://badge.fury.io/rb/chef-dk)."
+    end
   end
+
+  task :changelog => "changelog:update"
 rescue LoadError
   puts "github_changelog_generator is not available. gem install github_changelog_generator to generate changelogs"
 end