Use tduffield branch of github-changelog-generator

This branch fixes a number of bugs in the changelog generator, and
supports the type of behavior that we want when generating our
changelog. There is a PR open against
upstream (skywinder/github-changelog-generator#453) to merge this
upstream.

As part of this, we can now generate the changelog on every commit.

Signed-off-by: Tom Duffield <tom@chef.io>

4 files changed, 73 insertions, 60 deletions

diff --git a/Gemfile b/Gemfile
index 782a85357d..c03ce1c5d4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -78,7 +78,8 @@ group(:development, :test) do
 end
 
 group(:changelog) do
-  gem "github_changelog_generator"
+  gem "github_changelog_generator", git: "https://github.com/tduffield/github-changelog-generator", branch: "adjust-tag-section-mapping"
+  gem "mixlib-install"
 end
 
 group(:travis) do
diff --git a/Gemfile.lock b/Gemfile.lock
index 44bb684a99..1440235c90 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/chef/chef-server
-  revision: be1f43367a3a75e7a1b771a11fb5e48b6f6cf310
+  revision: 18c5684338f72379fe0c280f6fce8dee4fc355d2
   specs:
     oc-chef-pedant (2.2.0)
       activesupport (>= 4.2.7.1, < 6.0)
@@ -16,11 +16,11 @@ GIT
 
 GIT
   remote: https://github.com/chef/chefstyle.git
-  revision: 71b73a0f481d595bf222e1804c7152d2415f69a4
+  revision: 739602df221c9d03d94608ce3040d48f0e0c67e3
   branch: master
   specs:
     chefstyle (0.4.0)
-      rubocop (= 0.44.1)
+      rubocop (= 0.45.0)
 
 GIT
   remote: https://github.com/rubysec/bundler-audit.git
@@ -30,6 +30,20 @@ GIT
       bundler (~> 1.2)
       thor (~> 0.18)
 
+GIT
+  remote: https://github.com/tduffield/github-changelog-generator
+  revision: 7ef584546fcd21f983a4382b2123d7a0a1e833fd
+  branch: adjust-tag-section-mapping
+  specs:
+    github_changelog_generator (1.14.2)
+      activesupport
+      faraday-http-cache
+      multi_json
+      octokit (~> 4.6)
+      rainbow (>= 2.1)
+      rake (>= 10.0)
+      retriable (~> 2.1)
+
 PATH
   remote: .
   specs:
@@ -121,19 +135,21 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     addressable (2.4.0)
-    appbundler (0.9.0)
+    appbundler (0.10.0)
       mixlib-cli (~> 1.4)
-    artifactory (2.5.0)
+    artifactory (2.5.1)
     ast (2.3.0)
-    aws-sdk (2.6.18)
-      aws-sdk-resources (= 2.6.18)
-    aws-sdk-core (2.6.18)
+    aws-sdk (2.6.32)
+      aws-sdk-resources (= 2.6.32)
+    aws-sdk-core (2.6.32)
+      aws-sigv4 (~> 1.0)
       jmespath (~> 1.0)
-    aws-sdk-resources (2.6.18)
-      aws-sdk-core (= 2.6.18)
+    aws-sdk-resources (2.6.32)
+      aws-sdk-core (= 2.6.32)
     aws-sdk-v1 (1.66.0)
       json (~> 1.4)
       nokogiri (>= 1.4.4)
+    aws-sigv4 (1.0.0)
     backports (3.6.8)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
@@ -150,10 +166,10 @@ GEM
       net-ssh (>= 2.9, < 4.0)
       net-ssh-gateway (~> 1.2.0)
       winrm-fs (~> 1.0)
-    chef-provisioning-aws (2.0.0)
+    chef-provisioning-aws (2.1.0)
       aws-sdk (>= 2.1.26, < 3.0)
       aws-sdk-v1 (>= 1.59.0)
-      chef-provisioning (~> 2.0)
+      chef-provisioning (>= 1.0, < 3.0)
       retryable (~> 2.0, >= 2.0.1)
       ubuntu_ami (~> 0.4, >= 0.4.1)
     chef-sugar (3.4.0)
@@ -172,13 +188,12 @@ GEM
       rspec (~> 3.0)
     codeclimate-test-reporter (0.6.0)
       simplecov (>= 0.7.1, < 1.0.0)
-    codecov (0.1.7)
+    codecov (0.1.9)
       json
       simplecov
       url
     coderay (1.1.1)
     concurrent-ruby (1.0.2)
-    connection_pool (2.2.0)
     cucumber (2.4.0)
       builder (>= 2.1.2)
       cucumber-core (~> 1.5.0)
@@ -193,18 +208,18 @@ GEM
     debug_inspector (0.0.2)
     diff-lcs (1.2.5)
     docile (1.1.5)
-    domain_name (0.5.20161021)
+    domain_name (0.5.20161129)
       unf (>= 0.0.5, < 1.0.0)
     erubis (2.7.0)
-    ethon (0.9.1)
+    ethon (0.10.0)
       ffi (>= 1.3.0)
     excon (0.54.0)
-    faraday (0.9.2)
+    faraday (0.10.0)
       multipart-post (>= 1.2, < 3)
-    faraday-http-cache (1.3.1)
+    faraday-http-cache (2.0.0)
       faraday (~> 0.8)
-    faraday_middleware (0.10.0)
-      faraday (>= 0.7.4, < 0.10)
+    faraday_middleware (0.10.1)
+      faraday (>= 0.7.4, < 1.0)
     fauxhai (3.10.0)
       net-ssh
     ffi (1.9.14)
@@ -225,23 +240,15 @@ GEM
       rspec-core (~> 3.0)
       ruby-progressbar (~> 1.4)
     fuzzyurl (0.9.0)
-    gh (0.14.0)
-      addressable
+    gh (0.15.0)
+      addressable (~> 2.4.0)
       backports
       faraday (~> 0.8)
       multi_json (~> 1.0)
-      net-http-persistent (>= 2.7)
+      net-http-persistent (~> 2.9)
       net-http-pipeline
     gherkin (4.0.0)
     git (1.3.0)
-    github_changelog_generator (1.14.1)
-      activesupport
-      faraday-http-cache
-      multi_json
-      octokit (~> 4.0)
-      rainbow (>= 2.1)
-      rake (>= 10.0)
-      retriable (~> 2.1)
     gssapi (1.2.0)
       ffi (>= 1.0.1)
     gyoku (1.3.1)
@@ -273,9 +280,9 @@ GEM
     kitchen-sync (2.1.1)
       net-sftp
       test-kitchen (>= 1.0.0)
-    kitchen-vagrant (0.20.0)
+    kitchen-vagrant (0.21.0)
       test-kitchen (~> 1.4)
-    knife-windows (1.7.0)
+    knife-windows (1.7.1)
       winrm (~> 2.1)
       winrm-elevated (~> 1.0)
     launchy (2.4.3)
@@ -291,14 +298,14 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_portile2 (2.1.0)
-    minitest (5.9.1)
+    minitest (5.10.1)
     mixlib-archive (0.2.0)
       mixlib-log
     mixlib-authentication (1.4.1)
       mixlib-log
     mixlib-cli (1.7.0)
     mixlib-config (2.2.4)
-    mixlib-install (2.1.6)
+    mixlib-install (2.1.7)
       artifactory
       mixlib-shellout
       mixlib-versioning
@@ -312,8 +319,7 @@ GEM
     multi_json (1.12.1)
     multi_test (0.1.2)
     multipart-post (2.0.0)
-    net-http-persistent (3.0.0)
-      connection_pool (~> 2.2)
+    net-http-persistent (2.9.4)
     net-http-pipeline (1.0.1)
     net-http-spy (0.2.1)
     net-scp (1.2.1)
@@ -333,9 +339,9 @@ GEM
     nokogiri (1.6.8.1-x86-mingw32)
       mini_portile2 (~> 2.1.0)
     nori (2.6.0)
-    octokit (4.4.1)
-      sawyer (~> 0.7.0, >= 0.5.3)
-    ohai (8.21.0)
+    octokit (4.6.2)
+      sawyer (~> 0.8.0, >= 0.5.3)
+    ohai (8.22.0)
       chef-config (>= 12.5.0.alpha.1, < 13)
       ffi (~> 1.9)
       ffi-yajl (~> 2.2)
@@ -347,7 +353,7 @@ GEM
       plist (~> 3.1)
       systemu (~> 2.6.4)
       wmi-lite (~> 1.0)
-    parser (2.3.1.4)
+    parser (2.3.3.1)
       ast (~> 2.2)
     plist (3.2.0)
     poise (2.7.1)
@@ -389,7 +395,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    pry-byebug (3.4.0)
+    pry-byebug (3.4.1)
       byebug (~> 9.0)
       pry (~> 0.10)
     pry-remote (0.1.8)
@@ -437,7 +443,7 @@ GEM
     rspec_junit_formatter (0.2.3)
       builder (< 4)
       rspec-core (>= 2, < 4, != 2.12.0)
-    rubocop (0.44.1)
+    rubocop (0.45.0)
       parser (>= 2.3.1.1, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
@@ -450,9 +456,9 @@ GEM
     rubyzip (1.2.0)
     rufus-lru (1.1.0)
     safe_yaml (1.0.4)
-    sawyer (0.7.0)
-      addressable (>= 2.3.5, < 2.5)
-      faraday (~> 0.8, < 0.10)
+    sawyer (0.8.1)
+      addressable (>= 2.3.5, < 2.6)
+      faraday (~> 0.8, < 1.0)
     serverspec (2.37.2)
       multi_json
       rspec (~> 3.0)
@@ -475,7 +481,7 @@ GEM
       logify (~> 0.2)
     syslog-logger (1.6.8)
     systemu (2.6.5)
-    test-kitchen (1.13.2)
+    test-kitchen (1.14.0)
       mixlib-install (>= 1.2, < 3.0)
       mixlib-shellout (>= 1.2, < 3.0)
       net-scp (~> 1.1)
@@ -483,16 +489,17 @@ GEM
       net-ssh-gateway (~> 1.2.0)
       safe_yaml (~> 1.0)
       thor (~> 0.18)
-    thor (0.19.1)
+    thor (0.19.4)
     thread_safe (0.3.5)
     tomlrb (1.2.3)
-    travis (1.8.2)
+    travis (1.8.4)
       backports
       faraday (~> 0.9)
       faraday_middleware (~> 0.9, >= 0.9.1)
       gh (~> 0.13)
       highline (~> 1.6)
       launchy (~> 2.1)
+      net-http-persistent (~> 2.9)
       pusher-client (~> 0.4)
       typhoeus (~> 0.6, >= 0.6.8)
     treetop (1.6.8)
@@ -572,9 +579,10 @@ DEPENDENCIES
   chefstyle!
   cucumber (>= 2.4.0)
   foodcritic
-  github_changelog_generator
+  github_changelog_generator!
   halite
   knife-windows
+  mixlib-install
   netrc
   nokogiri
   oc-chef-pedant!
diff --git a/ci/version_bump.sh b/ci/version_bump.sh
index 00d5e70fce..f3c345b7f0 100755
--- a/ci/version_bump.sh
+++ b/ci/version_bump.sh
@@ -7,5 +7,6 @@ export LANG=en_US.UTF-8
 . ci/bundle_install.sh
 
 bundle exec rake version:bump
+bundle exec rake changelog
 
 git checkout .bundle/config
diff --git a/tasks/changelog.rb b/tasks/changelog.rb
index 989c43845d..5f2648bad1 100644
--- a/tasks/changelog.rb
+++ b/tasks/changelog.rb
@@ -1,26 +1,29 @@
 begin
   require "github_changelog_generator/task"
+  require "mixlib/install"
 
   namespace :changelog do
-    # Take the current changelog and move it to HISTORY.md. Removes lines that
-    # would get duplicated the next time we pull HISTORY into the CHANGELOG.
+    # Fetch the latest version from mixlib-install
+    latest_stable_version = Mixlib::Install.available_versions("chef", "stable").last
+
+    # Take the changelog from the latest stable release and put it into history.
     task :archive do
-      changelog = File.readlines("CHANGELOG.md")
-      File.open("HISTORY.md", "w+") { |f| f.write(changelog[2..-4].join("")) }
+      changelog = Net::HTTP.get(URI("https://raw.githubusercontent.com/chef/chef/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 tag in HISTORY.md and HEAD.
+    # 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 = Chef::VERSION
-      config.between_tags = ["v#{Chef::VERSION}"]
+      config.future_release = "v#{Chef::VERSION}"
+      config.between_tags = ["v#{latest_stable_version}", "v#{Chef::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's master branch on github and may not reflect the current released version of chef, which is [![Gem Version](https://badge.fury.io/rb/chef.svg)](https://badge.fury.io/rb/chef)"
+      config.header = "This changelog reflects the current state of chef's master branch on github and may not reflect the current released version of chef, which is **#{latest_stable_version}**."
     end
   end