#!/bin/bash
#
# This script merges non-free binaries from Google's Galaxy Nexus firmware
# into the Linaro Galaxy Nexus build.
#
# (C) 2012 Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>
# Released under the Apache Software License 2.0.


SRC=""
if [ -d "$1" ]; then
	if [ -e "$1"/system.img ]; then
		SRC="$1"/
	elif [ -e "$1"/out/target/product/maguro/system.img ]; then
		SRC="$1"/out/target/product/maguro/
	fi
elif [ -e system.img ]; then
	SRC="`pwd`"/
elif [ -e out/target/product/maguro/system.img ]; then
	SRC="`pwd`"/out/target/product/maguro/
fi
if [ -z "$SRC" ]; then
	echo "Usage: $0 [/path/to/linaro/images]"
	exit 1
fi
if [ "`id -u`" != 0 ]; then
	SUDO="`which sudo || :`"
	[ -z "$SUDO" ] && SUDO="su -c"
else
	SUDO=""
fi
error() {
	# Clean up...
	$SUDO umount -f "`pwd`"/linaro &>/dev/null
	$SUDO umount -f "`pwd`"/blob &>/dev/null
	# Then let the user know
	echo
	echo "*******************************************************************************"
	echo
	echo "Something went wrong."
	echo "Check the output above for errors to see details."
	echo
	echo "Make sure you have all prerequisites installed and you have a working"
	echo "Internet connection."
	echo
	echo "Prerequisites include:"
	echo "	Git (git)		http://git-scm.org/"
	echo "	GCC			http://gcc.gnu.org/ or http://launchpad.net/gcc-linaro"
	echo "	wget			http://www.gnu.org/software/wget"
	echo "	sudo			http://gratisoft.us/sudo/ (alternatively, run as root)"
	echo "	mount, kernel with ext4 support"
	exit 1
}
trap error ERR
WD="`pwd`"
cd "`dirname $0`"
export PATH="$PATH":"`pwd`"/extras/ext4_utils
CFLAGS="-O2 -march=native -mtune=native -DANDROID -I`pwd`/core/include"
# We don't need to touch YAFFS bits right now
#if ! which unyaffs &>/dev/null; then
#	svn co http://unyaffs.googlecode.com/svn/trunk unyaffs
#	cd unyaffs
#	gcc $CFLAGS -o unyaffs unyaffs.c
#fi
if ! which simg2img &>/dev/null; then
	if [ ! -d extras ]; then
		# http fallback is for people behind restrictive firewalls
		git clone git://android.git.linaro.org/platform/system/extras.git || \
			git clone http://android.git.linaro.org/platform/system/extras.git
		git clone git://android.git.linaro.org/platform/system/core.git || \
			git clone http://android.git.linaro.org/platform/system/core.git
		cd core
		git checkout -b jb origin/linaro_android_4.1.2
		cd ../extras
		git checkout -b jb android-4.1.2_r1
		cd ext4_utils
		gcc $CFLAGS -o simg2img simg2img.c sparse_crc32.c
		gcc $CFLAGS -o make_ext4fs make_ext4fs_main.c make_ext4fs.c ext4fixup.c ext4_utils.c allocate.c backed_block.c output_file.c contents.c extent.c indirect.c uuid.c sha1.c sparse_crc32.c wipe.c -lz
		cd ../..
	fi
fi
[ -e takju-jzo54k-factory-92830c0b.tgz ] || wget https://dl.google.com/dl/android/aosp/takju-jzo54k-factory-92830c0b.tgz
[ -d takju-jzo54k ] || tar xf takju-jzo54k-factory-92830c0b.tgz
[ -e recovery-clockwork-touch-6.0.1.0-maguro.img ] || wget http://download2.clockworkmod.com/recoveries/recovery-clockwork-touch-6.0.1.0-maguro.img
cd takju-jzo54k
if [ ! -e system.img ]; then
	unzip image-takju-jzo54k.zip
fi
cd ..
simg2img "$SRC"/system.img linaro.ext4
simg2img takju-jzo54k/system.img blob.ext4
mkdir -p blob linaro system
$SUDO mount -t ext4 -o loop,ro linaro.ext4 linaro
$SUDO mount -t ext4 -o loop,ro blob.ext4 blob
$SUDO rm -rf target tmp
mkdir target
$SUDO cp -a linaro/* target/
[ -d /tmp/android-native-toolchain ] && $SUDO cp -a /tmp/android-native-toolchain/system/* target/
$SUDO umount linaro
$SUDO cp -a \
	blob/vendor/pittpatt \
	blob/vendor/bin \
	blob/vendor/etc \
	target/vendor/
$SUDO cp -a \
	blob/vendor/firmware/bcm4330.hcd \
	blob/vendor/firmware/ducati-m3.bin \
	blob/vendor/firmware/libpn544_fw.so \
	blob/vendor/firmware/smc_pa_wvdrm.ift \
	target/vendor/firmware/
$SUDO cp -a \
	blob/vendor/lib/drm \
	blob/vendor/lib/egl \
	target/vendor/lib/
$SUDO cp -a \
	blob/vendor/lib/hw/gps.omap4.so \
	blob/vendor/lib/hw/gralloc.omap4.so \
	target/vendor/lib/hw/
$SUDO cp -a \
	blob/vendor/lib/*.so \
	target/vendor/lib/
$SUDO cp -a \
	blob/media/LMprec_508.emd \
	blob/media/PFFprec_600.emd \
	blob/media/bootanimation.zip \
	blob/media/video \
	target/media/
$SUDO cp -a \
	blob/media/audio/ringtones/RadiationOrchestration.ogg \
	blob/media/audio/ringtones/RobotsforEveryone.ogg \
	target/media/audio/ringtones/
$SUDO cp -a \
	blob/usr/srec/en-US \
	target/usr/srec/
$SUDO cp -a \
	blob/lib/libsecril-client.so \
	target/lib/
# Copying off the Google apps currently doesn't work.
# Don't enable WITH_GAPPS unless you're working on fixing it.
if [ "$WITH_GAPPS" = "yes" ]; then
	# FIXME
	# Google builds also replace some APKs in /system/app - at some point, we
	# should determine what the differences are, and whether or not it makes
	# sense to copy over the Google versions...
	#	Browser -> BrowserGoogle
	#	Calendar -> CalendarGoogle
	#	DeskClock -> DeskClockGoogle
	#	Email -> EmailGoogle
	#	Exchange2 -> Exchange2Google
	#	Gallery2 -> GalleryGoogle
	#	LatinIME -> LatinImeGoogle
	#	Music -> Music2
	#	Tag -> TagGoogle
	#	VideoEditor -> VideoEditorGoogle
	$SUDO cp -a \
		blob/app/Books.* \
		blob/app/ChromeBookmarksSyncAdapter.* \
		blob/app/Currents.* \
		blob/app/FaceLock.* \
		blob/app/GenieWidget.* \
		blob/app/Gmail.* \
		blob/app/GmsCore.* \
		blob/app/Google*.* \
		blob/app/LatinImeDictionaryPack.* \
		blob/app/Magazines.* \
		blob/app/Maps.* \
		blob/app/MediaUploader.* \
		blob/app/NetworkLocation.* \
		blob/app/OneTimeInitializer.* \
		blob/app/Phonesky.* \
		blob/app/PlusOne.* \
		blob/app/SetupWizard.* \
		blob/app/Stk.* \
		blob/app/Street.* \
		blob/app/Talk.* \
		blob/app/Thinkfree.* \
		blob/app/Velvet.* \
		blob/app/Videos.* \
		blob/app/VoiceSearchStub.* \
		blob/app/Wallet.* \
		blob/app/YouTube.* \
		blob/app/talkback.* \
		target/app/
	$SUDO cp -a \
		blob/bin/fRom \
		target/bin/
	$SUDO cp -a \
		blob/etc/permissions/com.google.* \
		blob/etc/permissions/features.xml \
		target/etc/permissions/
	$SUDO cp -a \
		blob/etc/preferred-apps \
		target/etc/
	$SUDO cp -a \
		blob/etc/updatecmds/google_generic_update.txt \
		target/etc/updatecmds/
	if false; then
		# With this, fails to boot to GUI
		# Details need to be diagnosed
		$SUDO cp -a \
			blob/framework/com.google.* \
			target/framework/
	fi
	# FIXME
	# Some of the stuff that exists in the Google build, but not in the Linaro build,
	# does not seem to have license issues (libvorbisencoder.so) - maybe we should just
	# build it inside the source tree to get better performance?
	$SUDO cp -a \
		blob/lib/libearthmobile.so \
		blob/lib/libfacelock_jni.so \
		blob/lib/libfilterpack_facedetect.so \
		blob/lib/libfrsdk.so \
		blob/lib/libgcomm_jni.so \
		blob/lib/libgoogle_recognizer_jni.so \
		blob/lib/libpatts_engine_jni_api.so \
		blob/lib/libspeexwrapper.so \
		blob/lib/libvideochat_jni.so \
		blob/lib/libvideochat_stabilize.so \
		blob/lib/libvoicesearch.so \
		blob/lib/libvorbisencoder.so \
		target/lib/
fi
$SUDO umount blob
mkdir tmp
$SUDO "`which make_ext4fs`" -s -l 512M -a system tmp/system.img target/
cd tmp
cp \
	"$SRC"/boot.img \
	"$SRC"/userdata.img \
	../takju-jzo54k/android-info.txt \
	./

# We don't currently have a Linaro recovery system, so let's use the
# most commonly used good one...
cp ../recovery-clockwork-touch-6.0.1.0-maguro.img \
	recovery.img
zip ../linaro-takju-jzo54k.zip boot.img recovery.img system.img userdata.img android-info.txt
cd ..

FASTBOOT="`which fastboot 2>/dev/null || :`"
if [ -n "$FASTBOOT" ]; then
	FASTBOOT_SIZE="`ls -l /sbin/fastboot |awk '{ print $5; }'`"
	if [ "$FASTBOOT_SIZE" -lt 1024 ]; then
		# This is likely LSB fastboot -- a tool that reboots the
		# machine without shutting down services...
		# Let's not use that!
		FASTBOOT=""
	fi
fi
if [ -z "$FASTBOOT" ]; then
	# Let's look for the Android SDK in various places...
	for i in /opt/android-sdk-linux /usr/local/android-sdk-linux /usr/android-sdk-linux; do
		if [ -e "$i/platform-tools/fastboot" ]; then
			FASTBOOT="$i/platform-tools/fastboot"
			break
		fi
	done
fi

echo
echo "*******************************************************************************"
echo
echo "Merging non-free binaries complete."
echo
if [ -n "$FASTBOOT" ]; then
	echo "Note that flashing a new firmware WILL DESTROY ALL DATA ON YOUR"
	echo "PHONE and VOID YOUR WARRANTY."
	echo
	echo "Flash to phone (y/n)?"
	read r
	r="`echo $r |cut -b1 |tr A-Z a-z`"
else
	r="n"
fi
if [ "$r" != "y" ]; then
	[ -z "$FASTBOOT" ] && FASTBOOT=fastboot
	echo
	echo "Boot your Galaxy Nexus into bootloader mode by powering it off"
	echo "(remove the battery if you're unsure), then holding the volume up"
	echo "and volume down keys at the same time while turning the phone on."
	echo
	echo "Use"
	echo "	$SUDO $FASTBOOT oem unlock"
	echo "	$SUDO $FASTBOOT -w update linaro-takju-jzo54k.zip"
	echo "to flash the image manually. Make sure you have the current"
	echo "boot loader and radio firmware installed first."
	echo
	echo "Note that flashing a new firmware WILL DESTROY ALL DATA ON YOUR"
	echo "PHONE and VOID YOUR WARRANTY."
	echo
	echo "Make sure you use the version of \"fastboot\" that comes with"
	echo "the Android SDK -- LSB \"fastboot\" reboots your machine"
	echo "instead."
	exit 0
fi

echo
echo "Boot your Galaxy Nexus into bootloader mode by powering it off"
echo "(remove the battery if you're unsure), then holding the volume up"
echo "and volume down keys at the same time while turning the phone on."
echo
# Expected to fail if the device is already unlocked
$SUDO $FASTBOOT oem unlock || :
$SUDO $FASTBOOT -w update linaro-takju-jzo54k.zip