Disable incremental regen when Archives enabled for 3.0 compatibility

.gitignore

@@ -3,3 +3,4 @@ Gemfile.lock
 test/destination
 .bundle
 pkg/
+.jekyll-metadata

.travis.yml

@@ -1,4 +1,20 @@
+language: ruby
+script : script/cibuild
+sudo: false
+
 rvm:
-- 2.1
-- 2.0
-- 1.9.3
+  - 2.2
+  - 2.1
+  - 2.0
+env:
+  - ""
+  - JEKYLL_VERSION=3.0.0.beta8
+  - JEKYLL_VERSION=2.0
+matrix:
+  include:
+    - # GitHub Pages
+      rvm: 2.1.1
+      env: GH_PAGES=true
+    - # Ruby 1.9
+      rvm: 1.9
+      env: JEKYLL_VERSION=2.0

Gemfile

@@ -1,2 +1,8 @@
 source 'https://rubygems.org'
 gemspec
+
+if ENV["GH_PAGES"]
+  gem "github-pages"
+elsif ENV["JEKYLL_VERSION"]
+  gem "jekyll", "~> #{ENV["JEKYLL_VERSION"]}"
+end

lib/jekyll-archives.rb

@@ -6,6 +6,14 @@ module Archives
     autoload :Archive, 'jekyll-archives/archive'
     autoload :VERSION, 'jekyll-archives/version'
 
+    if (Jekyll.const_defined? :Hooks)
+      Jekyll::Hooks.register :site, :after_reset do |site|
+        # We need to disable incremental regen for Archives to generate with the
+        # correct content
+        site.regenerator.instance_variable_set(:@disabled, true)
+      end
+    end
+
     class Archives < Jekyll::Generator
       safe true
 

script/cibuild

@@ -1,3 +1,4 @@
 #! /bin/sh
+set -e
 
 bundle exec rake test