Set up thermite

libimagruby/Rakefile

@@ -1,2 +1,5 @@
 require "bundler/gem_tasks"
-task :default => :spec
+require 'thermite/tasks'
+
+Thermite::Tasks.new(cargo_project_path: "..", cargo_workspace_member: "libimagruby")
+

libimagruby/ext/Rakefile

@@ -0,0 +1,5 @@
+require 'thermite/tasks'
+
+Thermite::Tasks.new(cargo_project_path: "..", cargo_workspace_member: "libimagruby")
+task default: %w(thermite:build)
+

libimagruby/imag.gemspec

@@ -23,4 +23,7 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "bundler", "~> 1.13"
   spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency 'thermite', "~> 0.11", ">= 0.11.1"
+
+  spec.extensions << 'ext/Rakefile'
 end

libimagruby/lib/imag.rb

@@ -1,5 +1,12 @@
 #!/usr/bin/env ruby
 
+require 'thermite/fiddle'
+
+toplevel_dir = File.dirname(File.dirname(__FILE__))
+Thermite::Fiddle.load_module('init_imag',
+                             cargo_project_path: toplevel_dir,
+                             ruby_project_path: toplevel_dir)
+
 module Imag
 
   IMAG_INIT_FN_NAME = 'imag_ruby_initialize'