1 files changed, 51 insertions, 4 deletions
diff --git a/Rakefile b/Rakefile
index 79957ab..06d82c5 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,11 +1,18 @@
 # -*- ruby -*-
 
+require 'psych'
 require 'rubygems'
 require 'hoe'
 
+def java?
+  RUBY_PLATFORM =~ /java/
+end
+
 class Hoe
   remove_const :RUBY_FLAGS
-  RUBY_FLAGS = "-I#{%w(lib ext bin test).join(File::PATH_SEPARATOR)}"
+  flags = "-I#{%w(lib ext bin test).join(File::PATH_SEPARATOR)}"
+  flags = "--1.9 " + flags if java?
+  RUBY_FLAGS = flags
 end
 
 gem 'rake-compiler', '>= 0.4.1'
@@ -27,12 +34,52 @@ $hoe = Hoe.spec 'psych' do
   extra_dev_deps << ['minitest', '~> 5.0']
 
   self.spec_extras = {
-    :extensions            => ["ext/psych/extconf.rb"],
     :required_ruby_version => '>= 1.9.2'
   }
 
-  Rake::ExtensionTask.new "psych", spec do |ext|
-    ext.lib_dir = File.join(*['lib', ENV['FAT_DIR']].compact)
+  if java?
+    require './lib/psych/versions.rb'
+    extra_deps << ['jar-dependencies', '>= 0.1.7']
+
+    # the jar declaration for jar-dependencies
+    self.spec_extras[ 'requirements' ] = "jar org.yaml:snakeyaml, #{Psych::DEFAULT_SNAKEYAML_VERSION}"
+    self.spec_extras[ 'platform' ] = 'java'
+    # TODO: clean this section up.
+    require "rake/javaextensiontask"
+    Rake::JavaExtensionTask.new("psych", spec) do |ext|
+      require 'maven/ruby/maven'
+      # uses Mavenfile to write classpath into pkg/classpath
+      # and tell maven via system properties the snakeyaml version
+      Maven::Ruby::Maven.new.exec( 'dependency:build-classpath', "-Djruby.version=#{JRUBY_VERSION}", "-Dsnakeyaml.version=#{Psych::DEFAULT_SNAKEYAML_VERSION}")#, '--quiet' )
+      ext.source_version = '1.7'
+      ext.target_version = '1.7'
+      ext.classpath = File.read('pkg/classpath')
+      ext.ext_dir = 'ext/java'
+    end
+  else
+    self.spec_extras[:extensions] = ["ext/psych/extconf.rb"]
+    Rake::ExtensionTask.new "psych", spec do |ext|
+      ext.lib_dir = File.join(*['lib', ENV['FAT_DIR']].compact)
+    end
+  end
+end
+
+def gem_build_path
+  File.join 'pkg', $hoe.spec.full_name
+end
+
+def add_file_to_gem relative_path
+  target_path = File.join gem_build_path, relative_path
+  target_dir = File.dirname(target_path)
+  mkdir_p target_dir unless File.directory?(target_dir)
+  rm_f target_path
+  safe_ln relative_path, target_path
+  $hoe.spec.files.concat [relative_path]
+end
+
+if java?
+  task gem_build_path => [:compile] do
+    add_file_to_gem 'lib/psych.jar'
   end
 end