#!/bin/bash

if [ ! -d src ]
  then
    echo "Missing 'src/' directory. Creating one for you."
    echo ""
    mkdir src
    echo "Main-Class: MyPackage.MyClass" > src/Manifest.txt
    exit
fi

if [ ! -e src/Manifest.txt ]
  then
    echo "Missing 'src/Manifest.txt'. Creating one for you."
    echo "Remember updating the Main-Class value!"
    echo ""
    echo "Main-Class: MyPackage.MyClass" > src/Manifest.txt
    exit
fi

echo "Starting build process"
echo ""

echo " - Making sources.txt"
if [ ! -d .tmp ]
  then
    mkdir .tmp
fi

find src -type f -name *.java > .tmp/sources.txt

if [ -d bin ]
  then
    echo " - Clearing 'bin/'"
    rm -r bin
fi

echo " - Compiling into 'bin/'"
mkdir bin
javac -d bin -encoding UTF-8 @.tmp/sources.txt

if [ -a application.jar ]
  then
    echo " - Deleting old jar"
    rm application.jar
fi

echo " - Creating new jar"
cd bin
jar cfm ../application.jar ../src/Manifest.txt *
cd ..

if [ -d res ]
  then
    echo " - Including resources"
    cd res
    jar uf ../application.jar *
    cd ..
fi

echo ""
echo "Done."
echo ""