Script to build a flashable Google Apps package

package-gapps.sh

#!/bin/bash
#
# Script to build a Google Apps package
#

DATE=$(date +%Y%m%d)

# Remove any old packages
if [ -f *.zip ]; then
    echo "Removing old zips"

    rm *.zip
fi

# If the right files are here, sign GoogleBackupTransport.apk
if [ -f signapk.jar ] && [ -f platform.pk8 ] && [ -f platform.x509.pem ]; then
    echo "Signing GoogleBackupTransport.apk"

    java -jar signapk.jar -w platform.x509.pem platform.pk8 \
    system/app/GoogleBackupTransport.apk system/app/GoogleBackupTransport.signed

    mv system/app/GoogleBackupTransport.signed system/app/GoogleBackupTransport.apk
fi

# Build the flashable zip package
echo "Building the Google Apps package"

zip -q -9 -r gapps-jb-"$DATE"-UNSIGNED.zip META-INF system

# If the right files exist, sign the Google Apps zip
if [ -f signapk.jar ] && [ -f testkey.pk8 ] && [ -f testkey.x509.pem ]; then
    echo "Signing the Google Apps package"

    java -jar signapk.jar -w testkey.x509.pem testkey.pk8 \
    gapps-jb-"$DATE"-UNSIGNED.zip gapps-jb-"$DATE"-signed.zip

    rm gapps-jb-"$DATE"-UNSIGNED.zip
fi