Shell script to package java code as a native OS X application.

package.sh

#! /bin/bash

################
# package.sh
#
# Packages java code as a native OS X application
#
# - Fetches source for a Java Swing HelloWorld application from the web
# - Compiles the source
# - Packages the source into a native Mac application
# - Installs the native Mac application
# - Runs the native Mac Application
#
# Requires:
#   OS X 10.8+
#   Java 8u60+ (http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html) 
#   super user rights on the execution account
#
# During first-time execution, the process may detect some additional Apple developer software is needed
# to create the dmg file, and may throw up a license prompt and initiate the download 
# Answer yes to such prompts and allow the software to install (requires about 2.5 gigbytes of space)
# The software is installed is offical Apple developer software.
#
# You may see some messages "Did not find a key matching <some string>"" AND "No Mac App Store App Signing Key" 
# The missing key messages can be safely ignored unless you actually want to sign your code with a valid
# Mac App Store Signing Key.
#
# To Use:
#   chmod +x package.sh
#   ./package.sh
# As the script executes sudo commands, enter your 
# superuser password as needed.
################


# select java version
export JAVA_HOME=`/usr/libexec/java_home -v 1.8`
$JAVA_HOME/bin/java -version

# cleanup work directory and any existing application install
if [ -d work ]; then
  rm -rf work
fi

if [ -d /Applications/HelloWorld.app ]; then
  sudo rm -rf /Applications/HelloWorld.app
fi

# create work directory and use it
mkdir work
cd work

# fetch a simple HelloWorldSwing sample java source from the web
mkdir start
cd start
curl -O http://docs.oracle.com/javase/tutorial/uiswing/examples/start/HelloWorldSwingProject/src/start/HelloWorldSwing.java
cd ..

# compile the HelloWorldSwing java source
$JAVA_HOME/bin/javac start/HelloWorldSwing.java

# create a jar file 
$JAVA_HOME/bin/jar cvf HelloWorldSwing.jar start/*.class

# make an executable jar file
$JAVA_HOME/bin/javapackager -createjar -srcdir . -appclass start.HelloWorldSwing -srcfiles HelloWorldSwing.jar -outdir . -outfile HelloWorld.jar

# package the jar and java runtime as a native application with installer
$JAVA_HOME/bin/javapackager -deploy -srcdir . -srcfiles HelloWorld.jar -outdir . -outfile HelloWorld -appclass start.HelloWorldSwing -native -name HelloWorld

# codesign the application using your apple developer ID (if you have one)
# allows the app to be accepted by the Apple GateKeeper - https://developer.apple.com/resources/developer-id/
# note this command is untested in the context of this script
# later revisions of JavaFX or OS X may change this signing procedure.
# codesign -s "Developer ID Application" bundles/HelloWorld.app

# mount the installer disk image
hdiutil attach bundles/HelloWorld-1.0.dmg

# install the HelloWorld application from the disk image
sudo cp -R /Volumes/HelloWorld/HelloWorld.app /Applications

# unmount the installer disk image
umount `mount | grep HelloWorld | cut -d " " -f1`

# leave the work directory
cd ..

# run our newly installed application
open -a HelloWorld