Sonian Scotty Launch4j JAR to EXE build automation

scotty_ci.sh

#!/usr/bin/env bash

# Synopsis:
#   Build a scotty.exe from a scotty.jar using Launch4j

# Helpful docs:
# - http://launch4j.sourceforge.net/docs.html
# - https://gist.github.com/iantruslove/8fe3631fdd14b2417758

# The primary dependencies to resolve are:
#  1 - The scotty.jar (standalone/uberjar)
#  2 - The location of the JRE


# Setup the most important variables
scotty_optional_prebuilt_jar=$1
original_pwd=`pwd`
tmp_dir=/tmp/scotty_exe
scotty_jar_default=target/scotty-snapshot-standalone.jar
scotty_exe_filename=scotty.exe
l4j_tarball_url='http://softlayer-dal.dl.sourceforge.net/project/launch4j/launch4j-3/3.1.0-beta2/launch4j-3.1.0-beta2-linux.tgz'
l4j_tarball=launch4j-3.1.0-beta2-linux.tgz
l4j_dir=launch4j
l4j_cmd=./launch4j
jre_used_by_l4j=`find /usr/lib/jvm/ -name 'jre' -type d | head -n 1`
bundled_jre_zip_url='https://bitbucket.org/alexkasko/openjdk-unofficial-builds/downloads/openjdk-1.7.0-u45-unofficial-icedtea-2.4.3-windows-i586-image.zip'
bundled_jre_zip=openjdk-1.7.0-u45-unofficial-icedtea-2.4.3-windows-i586-image.zip
bundled_jre_zip_dir=openjdk-1.7.0-u45-unofficial-icedtea-2.4.3-windows-i586-image
bundled_jre_dir=$tmp_dir/$bundled_jre_zip_dir/jre
bundled_scotty_config_file=test/resources/scotty.edn
final_zip_name=scotty.zip

# Test Scotty before continuing
lein test
if [ $? != 0 ]; then
    echo Oops. Scotty unit tests command returned an error.
    exit 1
fi


# Find or build Scotty JAR
# 1 - Use the optional argument to this script
# 2 - Or use a defaut
scotty_jar=${scotty_optional_prebuilt_jar:-$scotty_jar_default}
if [ ! -f "$scotty_jar" ]; then
    if [ -z "$scotty_optional_prebuilt_jar" ]; then
        lein uberjar
        if [ $? != 0 ]; then
            echo Oops. The Scotty uberjar command returned an error.
            exit 1
        fi
    fi
    if [ ! -f $scotty_jar ]; then
        echo
        echo '  Oops. I could find or build the scotty JAR that you'
        echo '  want to convert into an EXE.'
        echo
        echo "  I tried, but could not find or build: $scotty_jar"
        echo
        echo '  Suggestion 1: Run this command from the Scotty base dir with'
        echo '                no arguments.'
        echo
        echo "  Suggestion 2: Specify a pre-built JAR. Like: $0 scotty.jar"
        echo
        exit 1
    fi
fi


# Verify the existence of Scotty bundled config
if [ ! -f $bundled_scotty_config_file ]; then
    echo Expected to find the file: $bundled_scotty_config_file
    exit 1
fi


# Setup tmp dir
if [ -e $tmp_dir ]; then
    if [ ! -d $tmp_dir ]; then
        echo Scotty Launch4J tmp dir exists but is not a directory.
        echo Please fix that.
        exit 1
    fi
else
    mkdir $tmp_dir
fi


# cd into tmp dir
cd $tmp_dir
if [ $? != 0 ]; then
    echo Cannot cd to tmp dir: $tmp_dir
    exit 1
fi
echo "Working in tmp dir: `pwd`"


# Download Launch4j tarball if necessary, then extract it
if [ ! -e $l4j_dir ]; then
    if [ ! -e $l4j_tarball ]; then
        wget $l4j_tarball_url
        if [ $? != 0 ]; then
            echo Error while downloading tarball from: $l4j_tarball_url
            exit 1
        fi
    fi
    echo Extracting $l4j_tarball
    tar -xf $l4j_tarball
    if [ ! -d $l4j_dir ]; then
        echo Extracted Launch4j tarball but did not find the directory: $l4j_dir
        exit 1
    fi
fi


# Download JRE zip if necessary, then extract it
if [ ! -e $bundled_jre_zip_dir ]; then
    if [ ! -e $bundled_jre_zip ]; then
        wget $bundled_jre_zip_url
        if [ $? != 0 ]; then
            echo Error while downloading tarball from: $bundled_jre_zip_url
            exit 1
        fi
    fi
    echo Extracting $bundled_jre_zip
    unzip $bundled_jre_zip
    if [ ! -d $bundled_jre_zip_dir ]; then
        echo Extracted JRE ZIP but did not find the directory: $bundled_jre_zip_dir
        exit 1
    fi
fi


# cd into Launch4j directory
cd $l4j_dir
if [ $? != 0 ]; then
    echo Failed to cd into directory: `pwd`/$l4j_dir
    exit 1
fi


# Creating a unique output directory for this run
unique_output_dir=`mktemp -d $tmp_dir/scotty_l4j_exe_output_XXXXXXXX`


# Copy the Scotty JAR
scotty_jar_abs=$original_pwd/$scotty_jar
if [ ! -f $scotty_jar_abs ]; then
    echo Expected the Scotty JAR at: $scotty_jar_abs
    exit 1
fi
cp $scotty_jar_abs $unique_output_dir/


# Generate L4j scotty EXE build config
scotty_l4j_config=$unique_output_dir/scotty_l4j.xml
echo "Writing $scotty_l4j_config ..."
echo '<launch4jConfig>'                           > $scotty_l4j_config
echo '  <headerType>console</headerType>'        >> $scotty_l4j_config
echo "  <jar>`basename $scotty_jar`</jar>"       >> $scotty_l4j_config
echo "  <outfile>$scotty_exe_filename</outfile>" >> $scotty_l4j_config
echo '  <chdir>.</chdir>'                        >> $scotty_l4j_config
echo '  <jre>'                                   >> $scotty_l4j_config
echo "    <path>$jre_used_by_l4j</path>"         >> $scotty_l4j_config
echo '  </jre>'                                  >> $scotty_l4j_config
echo '</launch4jConfig>'                         >> $scotty_l4j_config


# The Launch4j EXE build command
$l4j_cmd $scotty_l4j_config
if [ $? != 0 ]; then
    echo The Launch4j EXE build command returned an error
    exit 1
fi
if [ ! -f $scotty_exe ]; then
    echo Apparently Launch4j did not generate the file: $scotty_exe
    exit 1
fi


# Verify that the 'zip' CLI tool exists
which zip
if [ $? != 0 ]; then
    echo Missing the command line tool 'zip'
    exit 1
fi


#
# Bundle everything into a single ZIP
#
zip_tmp_dir=`mktemp -d $tmp_dir/scotty_zip_XXXXXXXX`
final_zip_abs_name=$zip_tmp_dir/$final_zip_name
rm $final_zip_abs_name > /dev/null 2>&1
if [ -e $final_zip_name ]; then
    echo I tried to delete this fine but failed: $final_zip_abs_name
    exit 1
fi
cd $tmp_dir/
cp -R $bundled_jre_dir/                          $zip_tmp_dir/jre
cp    $unique_output_dir/$scotty_exe_filename    $zip_tmp_dir/
cp    $original_pwd/$bundled_scotty_config_file  $zip_tmp_dir/
cd $zip_tmp_dir
zip --quiet --recurse-paths $final_zip_name \
    jre `basename $bundled_scotty_config_file` $scotty_exe_filename
if [ $? != 0 ]; then
    echo Error returned while zipping file.
    exit 1
fi

# Verfiy that the final zip was created
if [ ! -f $final_zip_abs_name ]; then
    echo I thought I built this file, but I cannot see it: $final_zip_abs_name
    exit 1
fi

echo Created: $final_zip_abs_name
echo Done