#!/bin/bash
# This shell script used to build yocto for igkbaord

BOARD=igkboard

# https://wiki.yoctoproject.org/wiki/Releases
# Version should be: hardknott(3.3) honister(3.4) kirkstone(4.0)
VERSION=kirkstone

# i.MX BSP release version:
# https://www.nxp.com/design/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applications-processors:IMXLINUX
BSPVER=lf-5.15.71-2.2.0

PACKDIR=`pwd`/yocto_packets
BUILDIR=$BOARD

PRJ_PATH=`pwd`
WORKDIR=${PRJ_PATH}/${VERSION}-${BSPVER}

SRV_URL=http://master.iot-yun.club:2211/imx/bsp/yocto/
#SRV_URL=http://127.0.0.1:2211/imx/bsp/yocto/
YOCTO_TAR=imx-yocto-bsp-${VERSION}.tar.xz

set -e

# display in red
function pr_error() {
    echo -e "\033[40;31m --E-- $1 \033[0m"
}

# display in yellow
function pr_warn() {
    echo -e "\033[40;33m --W-- $1 \033[0m"
}

# display in green
function pr_info() {
    echo -e "\033[40;32m --I-- $1 \033[0m"
}

# decompress a packet to destination path
function do_unpack() {
    tarball=$1
    dstpath=`pwd`

    if [[ $# == 2 ]] ; then
        dstpath=$2
    fi

    pr_info "decompress $tarball"

    case $tarball in
        *.tar.gz)
            tar -xzf $tarball -C $dstpath
            ;;

        *.tar.bz2)
            tar -xjf $tarball -C $dstpath
            ;;

        *.tar.xz)
            tar -xJf $tarball -C $dstpath
            ;;

        *.tar)
            tar -xf $tarball -C $dstpath
            ;;

        *.zip)
            unzip -qo $tarball -d $dstpath
            ;;

        *)
            pr_error "decompress Unsupport packet: $tarball"
            return 1;
            ;;
    esac
}

function do_fetch()
{
    if [ -d ${WORKDIR}/sources/meta-imx/ ] ; then
        pr_warn "Yocto ${VERSION} fetched already."
        return 0;
    fi

    pr_info "start fetch Yocto ${VERSION}"

    cd ${PRJ_PATH}

    if [ ! -f tarballs/$YOCTO_TAR ] ; then
        mkdir -p tarballs/ && cd tarballs
        wget $SRV_URL/$YOCTO_TAR
    fi

    cd ${PRJ_PATH}
    do_unpack tarballs/$YOCTO_TAR

    mv imx-yocto-bsp $WORKDIR
}

function do_patch()
{
    if [ -d ${WORKDIR}/sources/meta-${BOARD} ] ; then
        pr_warn "Yocto ${VERSION} patch already."
        return 0;
    fi

    pr_info "start patch Yocto ${VERSION}"

    cd ${WORKDIR}/sources
    cp -af ${WORKDIR}/../meta-${BOARD}/${VERSION}-${BSPVER} meta-${BOARD}

    cd ${WORKDIR}
}

function do_build()
{
    TARGET=linuxsys-image

    pr_warn "Build Yocto ${VERSION} for ${TARGET}."

    cd ${WORKDIR}

    if [ -f ${BUILDIR}/conf/local.conf ] ; then
        pr_info "Yocto ${VERSION} source poky."
        source sources/poky/oe-init-build-env ${BUILDIR}
    else
        pr_info "Yocto ${VERSION} source meta."
        MACHINE=${BOARD} source sources/meta-${BOARD}/tools/${BOARD}-setup.sh -b ${BUILDIR}
    fi

    sed -i "s|^DL_DIR.*|DL_DIR ?= \"${PACKDIR}\"|g" conf/local.conf

    #bitbake -c clean u-boot-imx linux-imx ${TARGET}
    bitbake ${TARGET}

    cd ${WORKDIR}
}


function do_install()
{
    pr_warn "List yocto build output images."

    cd $WORKDIR

    set -x
    ls $WORKDIR/${BUILDIR}/tmp/deploy/images/${BOARD}/
    set +x
}

function do_clean()
{
    pr_warn "Clean Yocto ${VERSION} source code"

    rm -rf $WORKDIR
}

function do_usage()
{
    echo ""
    echo "Usage:"
    echo "  $0 [-b] [-c] [-h]"
    echo "     -b: download and build $PRJ_NAME"
    echo "     -c: clean the source code"
    echo "     -h: show this help message"
    echo ""
    exit;
}

while getopts "bch" OPTNAME
do
    case "${OPTNAME}" in
        "b")
            break;
            ;;

        "c")
            do_clean
            exit;
            ;;

        "h")
            do_usage
            exit;
            ;;

        "*")
            do_usage
            exit;
            ;;
    esac
done

#defualt do build action

do_fetch
do_patch
do_build
do_install

exit;