Script for diffing two boot images using Git and AIK (Android Image Kitchen)

bootimgdiff.sh

#!/bin/bash

set -e

ORIGINAL_IMG=$1
NEW_IMG=$2

if [ -z $ORIGINAL_IMG ] || [ -z $NEW_IMG ]; then
	echo "usage: ./bootimgdiff.sh <original-img> <new-img>"
	exit 1
fi

if [ "$EUID" -ne 0 ]; then
	echo "This script must be run as root"
	exit 1
fi

IMGNAME=$(basename $ORIGINAL_IMG)

if [ -f $IMGNAME ] || [ -d $IMGNAME ]; then
	rm -rf $IMGNAME
fi

mkdir $IMGNAME

# Unpack the original image and move the contents to the img diff directory
./unpackimg.sh $ORIGINAL_IMG
mv ramdisk $IMGNAME
mv split_img $IMGNAME
./cleanup.sh

# Init a git repository and add all files
cd $IMGNAME
git init
git add .

# Remove the files
rm -rf ramdisk
rm -rf split_img

cd ..

# Unpack the new image and move the contents to the img diff directory
./unpackimg.sh $NEW_IMG
mv ramdisk $IMGNAME
mv split_img $IMGNAME
./cleanup.sh

echo "Diff available at: $IMGNAME"