fix java build bug

---

Fixes #2

This is my first patch for JRuby, so any feedback would be appreciated. The specs do not run (Ill file a separate issue) but I am able to successfully start up & run the contents of a `Procfile`.

I based this patch on [launchys JRuby support](https://github.com/copiousfreetime/launchy/pull/10) and I too confirmed these changes did not break 1.8.7, 1.9.2 or 1.9.3.

.gitignore

@@ -5,4 +5,4 @@
 /man/*.markdown
 /pkg
 /tags
-
+/vendor

Gemfile

@@ -2,6 +2,10 @@ source "http://rubygems.org"
 
 gemspec
 
+platform :jruby do
+  gem "posix-spawn", "~> 0.3.6"
+end
+
 group :development do
   gem 'parka'
   gem 'rake'

Gemfile.lock

@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    foreman (0.36.0)
-      term-ansicolor (~> 1.0.5)
+    foreman (0.36.1)
+      term-ansicolor (~> 1.0.7)
       thor (>= 0.13.6)
 
 GEM
@@ -17,14 +17,17 @@ 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)
       crack
       rest-client
       thor
+    posix-spawn (0.3.6)
     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)
@@ -47,6 +50,7 @@ GEM
     xml-simple (1.0.15)
 
 PLATFORMS
+  java
   ruby
 
 DEPENDENCIES
@@ -54,6 +58,7 @@ DEPENDENCIES
   fakefs (~> 0.3.2)
   foreman!
   parka
+  posix-spawn (~> 0.3.6)
   rake
   rcov (~> 0.9.8)
   ronn

Rakefile

@@ -1,7 +1,3 @@
-require "rubygems"
-require "bundler"
-Bundler.setup
-
 require "rake"
 require "rspec"
 require "rspec/core/rake_task"
@@ -102,9 +98,13 @@ def clean(file)
   rm file if File.exists?(file)
 end
 
-def distribution_files
+def distribution_files(type=nil)
   require "foreman/distribution"
-  Foreman::Distribution.files
+  base_files = Foreman::Distribution.files
+  type_files = type ?
+    Dir[File.expand_path("../dist/resources/#{type}/**/*", __FILE__)] :
+    []
+  base_files.concat(type_files)
 end
 
 def mkchdir(dir)

bin/runner

@@ -1,2 +1,36 @@
 #!/bin/sh
+#
+#/ Usage: runner [-d <dir>] <command>
+#/
+#/ Run a command with exec, optionally changing directory first
+
+set -e
+
+error() {
+  echo $@ >&2
+  exit 1
+}
+
+usage() {
+  cat $0 | grep '^#/' | cut -c4-
+  exit
+}
+
+while getopts ":hd:" OPT; do
+  case $OPT in
+     d) cd $OPTARG ;;
+     h) usage ;;
+    \?) error "invalid option: -$OPTARG" ;;
+     :) error "option -$OPTARG requires an argument" ;;
+  esac
+done
+
+shift $((OPTIND-1))
+
+command=$1
+
+if [ "$1" == "" ]; then
+  usage
+fi
+
 exec $1 2>&1

dist/deb.rake

@@ -0,0 +1,48 @@
+file pkg("/apt-#{version}/foreman-#{version}.deb") => distribution_files("deb") do |t|
+  mkchdir(File.dirname(t.name)) do
+    mkchdir("usr/local/foreman") do
+      assemble_distribution
+      assemble_gems
+      assemble resource("deb/foreman"), "bin/foreman", 0755
+      File.chmod 0755, "bin/runner"
+    end
+
+    assemble resource("deb/control"), "control"
+    assemble resource("deb/postinst"), "postinst"
+
+    sh "tar czvf data.tar.gz usr/local/foreman --owner=root --group=root"
+    sh "tar czvf control.tar.gz control postinst"
+
+    File.open("debian-binary", "w") do |f|
+      f.puts "2.0"
+    end
+
+    deb = File.basename(t.name)
+
+    sh "ar -r #{t.name} debian-binary control.tar.gz data.tar.gz"
+
+    touch "Sources"
+    sh "apt-ftparchive packages . > Packages"
+    sh "gzip -c Packages > Packages.gz"
+    sh "apt-ftparchive release . > Release"
+    sh "gpg -abs -u 0F1B0520 -o Release.gpg Release"
+  end
+end
+
+desc "Build a .deb package"
+task "deb:build" => pkg("/apt-#{version}/foreman-#{version}.deb")
+
+desc "Remove build artifacts for .deb"
+task "deb:clean" do
+  clean pkg("foreman-#{version}.deb")
+  FileUtils.rm_rf("pkg/apt-#{version}") if Dir.exists?("pkg/apt-#{version}")
+end
+
+desc "Publish .deb to S3."
+task "deb:release" => "deb:build" do |t|
+  Dir["pkg/apt-#{version}/*"].each do |file|
+    unless File.directory?(file)
+      store file, "apt/#{File.basename(file)}"
+    end
+  end
+end

dist/jruby.rake

@@ -0,0 +1,14 @@
+file pkg("foreman-#{version}-jruby.gem") => distribution_files do |t|
+  sh "env JRUBY=true gem build foreman.gemspec"
+  sh "mv foreman-#{version}-java.gem #{t.name}"
+end
+
+task "jruby:build" => pkg("foreman-#{version}-jruby.gem")
+
+task "jruby:clean" do
+  clean pkg("foreman-#{version}-jruby.gem")
+end
+
+task "jruby:release" => "jruby:build" do |t|
+  sh "parka push -f #{pkg("foreman-#{version}-jruby.gem")}"
+end

dist/resources/deb/control

@@ -0,0 +1,12 @@
+Package: foreman
+Version: <%= version %>
+Section: main
+Priority: standard
+Architecture: all
+Depends: ruby1.9.1
+Maintainer: Heroku
+Description: Manage Procfile-based applications.
+ Foreman is a manager for Procfile-based applications. Its aim is to
+ abstract away the details of the Procfile format, and allow you to
+ either run your application directly or export it to some other
+ process management format.

dist/resources/deb/foreman

@@ -0,0 +1,18 @@
+#!/usr/bin/env ruby1.9.1
+
+# resolve bin path, ignoring symlinks
+require "pathname"
+bin_file = Pathname.new(__FILE__).realpath
+
+# add locally vendored gems to libpath
+gem_dir = File.expand_path("../../vendor/gems", bin_file)
+Dir["#{gem_dir}/**/lib"].each do |libdir|
+  $:.unshift libdir
+end
+
+# add self to libpath
+$:.unshift File.expand_path("../../lib", bin_file)
+
+require "foreman/cli"
+
+Foreman::CLI.start

dist/resources/deb/heroku-release-key.txt

@@ -0,0 +1,30 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1.4.11 (Darwin)
+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+pGR1aPSo7GgkSUdaT6CVBN3JWZ2kVJGqohNoJMYbfVaWd/kpa/LiMFWzS8LfWT2K
+xiO2vIh4qBfeRCGR7s8rADCHuHJ0eibADrgqcRfdPrChB1JiYLeTdV4yRmSzJ7TM
+zWX7OVpGfIFLbCw9NeN65pI9ePs2mSPM7DYkhhKSXWMwJNXFzn1blOGiwAwKb48P
+a/QpE6TG3PQzbYyTTP0Td1XgKAHcprvbc89a/nAk3a+PJQ/MqvDzABEBAAGJAR8E
+GAECAAkFAk5SfAECGwwACgkQySfr4A8bBSD4mAgAnCT5WRiDl0259Px9Z9J9Wk8Z
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+OeIzOzQgkb4aeT0Whl+EPcTeDZfqIhVBoNXupUanmWNppFcMngxfqG2NGi1vvQ==
+=aUAq
+-----END PGP PUBLIC KEY BLOCK-----

dist/resources/deb/postinst

@@ -0,0 +1,3 @@
+#!/bin/sh
+set -e
+ln -sf /usr/local/foreman/bin/foreman /usr/bin/foreman

foreman.gemspec

@@ -16,6 +16,11 @@ Gem::Specification.new do |gem|
   gem.files = Dir["**/*"].select { |d| d =~ %r{^(README|bin/|data/|ext/|lib/|spec/|test/)} }
   gem.files << "man/foreman.1"
 
-  gem.add_dependency 'term-ansicolor', '~> 1.0.5'
+  gem.add_dependency 'term-ansicolor', '~> 1.0.7'
   gem.add_dependency 'thor',           '>= 0.13.6'
+
+  if ENV["JRUBY"]
+    gem.add_dependency "posix-spawn", "~> 0.3.6"
+    gem.platform = Gem::Platform.new("java")
+  end
 end

lib/foreman/process.rb

@@ -1,4 +1,5 @@
 require "foreman"
+require "rubygems"
 
 class Foreman::Process
 
@@ -14,10 +15,8 @@ class Foreman::Process
   end
 
   def run(pipe, basedir, environment)
-    Dir.chdir(basedir) do
-      with_environment(environment.merge("PORT" => port.to_s)) do
-        run_process entry.command, pipe
-      end
+    with_environment(environment.merge("PORT" => port.to_s)) do
+      run_process basedir, entry.command, pipe
     end
   end
 
@@ -27,21 +26,33 @@ class Foreman::Process
 
 private
 
-  def fork_with_io(command)
+  def jruby?
+    defined?(RUBY_PLATFORM) and RUBY_PLATFORM == "java"
+  end
+
+  def fork_with_io(command, basedir)
     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?
+      require "posix/spawn"
+      POSIX::Spawn.spawn(Foreman.runner, "-d", basedir, command, {
+        :out => writer, :err => writer
+      })
+    else
+      fork do
+        trap("INT", "IGNORE")
+        writer.sync = true
+        $stdout.reopen writer
+        $stderr.reopen writer
+        reader.close
+        exec Foreman.runner, "-d", basedir, command
+      end
     end
     [ reader, pid ]
   end
 
-  def run_process(command, pipe)
-    io, @pid = fork_with_io(command)
+  def run_process(basedir, command, pipe)
+    io, @pid = fork_with_io(command, basedir)
     output pipe, "started with pid %d" % @pid
     Thread.new do
       until io.eof?

lib/foreman/version.rb

@@ -1,5 +1,5 @@
 module Foreman
 
-  VERSION = "0.36.0"
+  VERSION = "0.36.1"
 
 end