#!/bin/bash
# This shell script used to setup imx6ull build envrionment
#

LYFTP_PUB=http://weike-iot.com:2211/imx6ull/tools/lintools

if [ `id -u` != 0 ] ; then
    echo ""
    echo "ERROR: This shell script must be excuted as root privilege."
    echo ""
    exit 0;
fi

function msg_banner()
{
    echo "" 
    echo "+-----------------------------------------------------------------------" 
    echo "|  $1 " 
    echo "+-----------------------------------------------------------------------" 
    echo ""
}

function prepare_instpath()
{
    if [ -w /apps -a -w /opt ] ; then
        msg_banner "Install path [/apps and /opt] already setup, skip it"
        return ;
    fi

    msg_banner "/apps and /opt not writable, use chmod to give writable permissions"

    #QT build will installed to this path
    mkdir -p /apps && chmod 777 /apps

    #TFTP server path
    mkdir -p /tftp && chmod 777 /tftp

    #crosstool will installed to this path
    chmod 777 /opt/
}

function install_systools()
{
    jq --version > /dev/null 2>&1
    if [ $? == 0 ] ;  then
        msg_banner "All system tools already installed, skip it"
        return 0;
    fi

    msg_banner "start apt install system tools(commands)" 

    systools="gawk wget git diffstat unzip texinfo build-essential chrpath socat libncurses-dev flex \
        libsdl1.2-dev xterm sed cvs subversion coreutils texi2html docbook-utils python-pysqlite2 tree \
        help2man make gcc g++ desktop-file-utils libgl1-mesa-dev libglu1-mesa-dev mercurial autoconf \
        automake groff curl lzop asciidoc lib32z1 lib32ncurses-dev libssl-dev autoconf-archive bison \
        kpartx jq binfmt-support qemu qemu-user-static debootstrap debian-archive-keyring "


    apt update > /dev/null 2>&1
    apt install -y $systools
}

function install_crosstool()
{
    arm-linux-gnueabihf-gcc -v > /dev/null 2>&1
    if [ $? == 0 ] ;  then
        msg_banner "All development tools already installed, skip it"
        return 0;
    fi

    msg_banner "start apt install devlopment tools(commands)"

    devtools="u-boot-tools mtd-utils device-tree-compiler gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf \
        binfmt-support qemu qemu-user-static debootstrap debian-archive-keyring "

    apt install -y $devtools

    #sudo update-alternatives --install /usr/bin/arm-linux-gnueabihf-gcc arm-linux-gnueabihf-gcc /usr/bin/arm-linux-gnueabihf-gcc-9 10
}

function install_buildroot()
{
    BUILDROOT_PATH=/opt/buildroot
    BUILDROOT_NAME=cortexA7

    BUILDROOT_VER=buildroot-2021.02.7-cortexA7
    BUILDROOT_TAR=${BUILDROOT_VER}.tar.bz2
    BUILDROOT_DLADDR=${LYFTP_PUB}/$BUILDROOT_TAR

    if [ -d ${BUILDROOT_PATH}/${BUILDROOT_NAME} ] ; then
        msg_banner "Buildroot already installed to $BUILDROOT_PATH/$BUILDROOT_NAME"
        return 0;
    fi

    mkdir -p ${BUILDROOT_PATH} 

    if [ ! -f $BUILDROOT_TAR ] ; then 
        msg_banner "download $BUILDROOT_VER now..."
        wget -c $BUILDROOT_DLADDR 
    fi 

    msg_banner "install $BUILDROOT_VER to $BUILDROOT_PATH/$BUILDROOT_NAME now..."
    tar -xjf ${BUILDROOT_TAR} -C ${BUILDROOT_PATH}

    $BUILDROOT_PATH/$BUILDROOT_NAME/bin/arm-linux-gcc -v

    msg_banner "Cross compiler: $BUILDROOT_PATH/$BUILDROOT_NAME/bin/arm-linux-"

    rm -f ${BUILDROOT_TAR}
}


prepare_instpath

install_systools

install_crosstool

install_buildroot