#!/bin/bash

target=vibrantmtd
export ANDROID_BUILD_TOP=~/android/aosp

setup ()
{
    if [ x = "x$ANDROID_BUILD_TOP" ] ; then
        echo "Android build environment must be configured"
        exit 1
    fi
    . "$ANDROID_BUILD_TOP"/build/envsetup.sh

    KERNEL_DIR=~/android/kernel/ICS/aries/sgs/DerTefuel
    BUILD_DIR="$KERNEL_DIR/build"
    MODULES=("fs/cifs/cifs.ko" "fs/fuse/fuse.ko" "fs/nls/nls_utf8.ko")

    if [ x = "x$NO_CCACHE" ] && ccache -V &>/dev/null ; then
        CCACHE=ccache
        CCACHE_BASEDIR="$KERNEL_DIR"
        CCACHE_COMPRESS=1
        CCACHE_DIR="$BUILD_DIR/.ccache"
        export CCACHE_DIR CCACHE_COMPRESS CCACHE_BASEDIR
    else
        CCACHE=""
    fi

    CROSS_PREFIX=/home/nelson/android/toolchain/arm-2009q3/bin/arm-none-linux-gnueabi-
}

build ()
{
    local target=$1
    echo "Building for $target"
    local target_dir="$BUILD_DIR/$target"
    local module
    rm -fr "$target_dir"
    mkdir -p "$target_dir/usr"
    cp "$KERNEL_DIR/usr/"*.list "$target_dir/usr"
    sed "s|usr/|$KERNEL_DIR/usr/|g" -i "$target_dir/usr/"*.list
    mka -C "$KERNEL_DIR" O="$target_dir" aries_${target}_defconfig HOSTCC="$CCACHE gcc"
    mka -C "$KERNEL_DIR" O="$target_dir" HOSTCC="$CCACHE gcc" CROSS_COMPILE="$CCACHE $CROSS_PREFIX" zImage modules
    cp "$target_dir"/arch/arm/boot/zImage $ANDROID_BUILD_TOP/device/samsung/$target/kernel
    for module in "${MODULES[@]}" ; do
        cp "$target_dir/$module" $ANDROID_BUILD_TOP/device/samsung/$target
    done
}

setup

if [ "$1" = clean ] ; then
    rm -fr "$BUILD_DIR"/*
    exit 0
fi

targets=("$@")
if [ 0 = "${#targets[@]}" ] ; then
    targets=(vibrantmtd)
fi

START=$(date +%s)

for target in "${targets[@]}" ; do
    build $target
done

#echo "launching packaging script"
#~/android/ics/release/doit.sh

END=$(date +%s)
ELAPSED=$((END - START))
E_MIN=$((ELAPSED / 60))
E_SEC=$((ELAPSED - E_MIN * 60))
printf "Elapsed: "
[ $E_MIN != 0 ] && printf "%d min(s) " $E_MIN
printf "%d sec(s)\n" $E_SEC