Add command argument string splitting

launchd uses exec() under the hood when you specify ProgramArguments
or Program so you must break apart program arguments into separate
strings in an array or the command will fail

data/export/launchd/launchd.plist.erb

@@ -13,7 +13,9 @@
     </dict>
     <key>ProgramArguments</key>
     <array>
-        <string><%= process.command %></string>
+    <%- command_args.each do |command| -%>
+        <string><%= command %></string>
+    <%- end -%>
     </array>
     <key>KeepAlive</key>
     <true/>

lib/foreman/export/launchd.rb

@@ -8,6 +8,7 @@ class Foreman::Export::Launchd < Foreman::Export::Base
     engine.each_process do |name, process|
       1.upto(engine.formation[name]) do |num|
         port = engine.port_for(process, num)
+        command_args = process.command.split(" ")
         write_template "launchd/launchd.plist.erb", "#{app}-#{name}-#{num}.plist", binding
       end
     end

spec/foreman/export/launchd_spec.rb

@@ -18,4 +18,14 @@ describe Foreman::Export::Launchd, :fakefs do
     File.read("/tmp/init/app-bravo-1.plist").should == example_export_file("launchd/launchd-b.default")
   end
 
+  context "with multiple command arguments" do
+    let(:procfile) { FileUtils.mkdir_p("/tmp/app"); write_procfile("/tmp/app/Procfile", "charlie") }
+
+    it "splits each command argument" do
+      launchd.export
+      File.read("/tmp/init/app-alpha-1.plist").should == example_export_file("launchd/launchd-c.default")
+    end
+
+  end
+
 end

spec/resources/export/launchd/launchd-c.default

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>Label</key>
+    <string>app-alpha-1</string>
+    <key>EnvironmentVariables</key>
+    <dict>
+        <key>PORT</key>
+        <string>5000</string>
+    </dict>
+    <key>ProgramArguments</key>
+    <array>
+        <string>./alpha</string>
+        <string>charlie</string>
+    </array>
+    <key>KeepAlive</key>
+    <true/>
+    <key>RunAtLoad</key>
+    <true/>
+    <key>StandardErrorPath</key>
+    <string>/var/log/app/app-alpha-1.log</string>
+    <key>UserName</key>
+    <string>app</string>
+    <key>WorkingDirectory</key>
+    <string>/tmp/app</string>
+</dict>
+</plist>