+if Bundler.rubygems.find_name('github_changelog_generator').any?
+ GitHubChangelogGenerator::RakeTask.new :changelog do |config|
+ raise "Set CHANGELOG_GITHUB_TOKEN environment variable eg 'export CHANGELOG_GITHUB_TOKEN=valid_token_here'" if Rake.application.top_level_tasks.include? "changelog" and ENV['CHANGELOG_GITHUB_TOKEN'].nil?
+ config.user = "#{changelog_user}"
+ config.project = "#{changelog_project}"
+ config.future_release = "#{changelog_future_release}"
+ config.exclude_labels = ['maintenance']
+ config.header = "# Change log\n\nAll notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](http://semver.org)."
+ config.add_pr_wo_labels = true
+ config.issues = false
+ config.merge_prefix = "### UNCATEGORIZED PRS; LABEL THEM ON GITHUB"
+ config.configure_sections = {
+ "Changed" => {
+ "prefix" => "### Changed",
+ "labels" => ["backwards-incompatible"],
+ },
+ "Added" => {
+ "prefix" => "### Added",
+ "labels" => ["enhancement", "feature"],
+ },
+ "Fixed" => {
+ "prefix" => "### Fixed",
+ "labels" => ["bug", "documentation", "bugfix"],
+ },
+ }
+ end
+else
+ desc 'Generate a Changelog from GitHub'
+ task :changelog do
+ raise <<EOM
+The changelog tasks depends on recent features of the github_changelog_generator gem.
+Please manually add it to your .sync.yml for now, and run `pdk update`:
+---
+Gemfile:
+ optional:
+ ':development':
+ - gem: 'github_changelog_generator'
+ version: '~> 1.15'
+ condition: "Gem::Version.new(RUBY_VERSION.dup) >= Gem::Version.new('2.3.0')"
+EOM
+ end
+end
+