fop: run in headless mode

Run apache FOP in headless mode to avoid creating a dock icon and stealing UI focus.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/fop.rb

@@ -5,6 +5,11 @@ class Fop < Formula
   url "http://www.apache.org/dyn/closer.cgi?path=/xmlgraphics/fop/binaries/fop-1.0-bin.tar.gz"
   md5 "3186f93a314bdcb710bd7cb02d80404c"
 
+  # Run in headless mode to avoid having it appear on the Dock and stealing UI focus.
+  def patches
+    DATA
+  end
+
   def shim_script target
     <<-EOS.undent
       #!/bin/bash
@@ -17,3 +22,28 @@ class Fop < Formula
     (bin+'fop').write shim_script('fop')
   end
 end
+
+
+__END__
+diff --git a/fop b/fop
+index 3f2ac6f..c9167bb 100755
+--- a/fop
++++ b/fop
+@@ -19,6 +19,7 @@
+ 
+ rpm_mode=true
+ fop_exec_args=
++java_exec_args="-Djava.awt.headless=true"
+ no_config=false
+ fop_exec_debug=false
+ show_help=false
+@@ -247,7 +248,7 @@ fi
+ 
+ # Execute FOP using eval/exec to preserve spaces in paths,
+ # java options, and FOP args
+-fop_exec_command="exec \"$JAVACMD\" $LOGCHOICE $LOGLEVEL -classpath \"$LOCALCLASSPATH\" $FOP_OPTS org.apache.fop.cli.Main $fop_exec_args"
++fop_exec_command="exec \"$JAVACMD\" $java_exec_args $LOGCHOICE $LOGLEVEL -classpath \"$LOCALCLASSPATH\" $FOP_OPTS org.apache.fop.cli.Main $fop_exec_args"
+ if $fop_exec_debug ; then
+     echo $fop_exec_command
+ fi
+