Using spoon for JRuby support

Gemfile.lock

@@ -2,6 +2,7 @@ PATH
   remote: .
   specs:
     foreman (0.36.1)
+      spoon (~> 0.0.1)
       term-ansicolor (~> 1.0.7)
       thor (>= 0.13.6)
 
@@ -17,6 +18,7 @@ GEM
     diff-lcs (1.1.3)
     fakefs (0.3.2)
     hpricot (0.8.2)
+    hpricot (0.8.2-java)
     mime-types (1.16)
     mustache (0.11.2)
     parka (0.6.2)
@@ -25,6 +27,7 @@ GEM
       thor
     rake (0.9.2.2)
     rcov (0.9.8)
+    rcov (0.9.8-java)
     rdiscount (1.6.5)
     rest-client (1.6.1)
       mime-types (>= 1.16)
@@ -42,11 +45,13 @@ GEM
       diff-lcs (~> 1.1.2)
     rspec-mocks (2.8.0)
     rubyzip (0.9.4)
+    spoon (0.0.1)
     term-ansicolor (1.0.7)
     thor (0.14.6)
     xml-simple (1.0.15)
 
 PLATFORMS
+  java
   ruby
 
 DEPENDENCIES

foreman.gemspec

@@ -18,4 +18,5 @@ Gem::Specification.new do |gem|
 
   gem.add_dependency 'term-ansicolor', '~> 1.0.7'
   gem.add_dependency 'thor',           '>= 0.13.6'
+  gem.add_dependency 'spoon',          '~> 0.0.1'
 end

lib/foreman/process.rb

@@ -1,4 +1,6 @@
 require "foreman"
+require "rubygems"
+require "spoon" if RUBY_PLATFORM == "java"
 
 class Foreman::Process
 
@@ -27,15 +29,24 @@ class Foreman::Process
 
 private
 
+  def jruby?
+    defined?(RUBY_PLATFORM) and RUBY_PLATFORM == "java"
+  end
+
   def fork_with_io(command)
     reader, writer = IO.pipe
-    pid = fork do
-      trap("INT", "IGNORE")
-      writer.sync = true
-      $stdout.reopen writer
-      $stderr.reopen writer
-      reader.close
-      exec Foreman.runner, replace_command_env(command)
+    command = replace_command_env(command)
+    pid = if jruby?
+      Spoon.spawnp Foreman.runner, command
+    else
+      fork do
+        trap("INT", "IGNORE")
+        writer.sync = true
+        $stdout.reopen writer
+        $stderr.reopen writer
+        reader.close
+        exec Foreman.runner, command
+      end
     end
     [ reader, pid ]
   end