Merge branch 'flavorjones-ci-test-alpine'

Rakefile

@@ -1,18 +1,14 @@
 # -*- ruby -*-
-require 'rubygems'
+ENV['LANG'] = "en_US.UTF-8" # UBUNTU 10.04, Y U NO DEFAULT TO UTF-8?
 
-gem 'hoe'
 require 'hoe'
 
-require 'shellwords'
-require "rake_compiler_dock"
-
 Hoe.plugin :debugging
 Hoe.plugin :git
 Hoe.plugin :gemspec
 Hoe.plugin :bundler
 
-ENV['LANG'] = "en_US.UTF-8" # UBUNTU 10.04, Y U NO DEFAULT TO UTF-8?
+require 'shellwords'
 
 require_relative "tasks/util"
 require_relative "tasks/cross-ruby"
@@ -80,8 +76,6 @@ HOE = Hoe.spec 'nokogiri' do
   self.test_prelude = 'require "helper"' # ensure simplecov gets loaded before anything else
 end
 
-# ----------------------------------------
-
 if java?
   # TODO: clean this section up.
   require "rake/javaextensiontask"

concourse/common_prelude.rb

@@ -6,3 +6,6 @@
   "suppressions/**",
   ".github/**",
 ].to_json
+
+cross_rubies_path = File.join(File.dirname(__FILE__), "..", ".cross_rubies")
+$native_ruby_versions = File.read(cross_rubies_path).split("\n").map { |line| line.split(":").first.split(".").take(2).join(".") }.uniq.sort

concourse/images/Dockerfile.alpine.erb

@@ -0,0 +1,13 @@
+FROM ruby:alpine
+
+# prelude
+RUN apk update
+RUN apk add bash build-base
+
+# valgrind
+RUN apk add valgrind
+
+# libxml-et-al
+RUN apk add libxml2-dev libxslt-dev pkgconfig
+
+<%= File.read "bundle-install.step" %>