#!/bin/bash

set -e

ROOTFS_PATH=`pwd`/../../linux-bsp/rootfs/

LYFTP_SRC=ftp://master.iot-yun.club/src/

CROSSTOOL=/opt/buildroot/cortex-a5/bin/arm-linux-



JOBS=`cat /proc/cpuinfo  |  grep processor | wc -l`

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

function check_result()
{
    if [ $? != 0 ] ; then
       echo ""
       echo "+-----------------------------------------------------------------------"
       echo "|  $1 "
       echo "+-----------------------------------------------------------------------"
       echo ""
       exit ;
    fi
}


function compile_busybox()
{
    SRC_NAME=busybox-1.31.0
    PACK_SUFIX=tar.bz2

    if [ -f $SRC_NAME/busybox ] ; then 
        msg_banner "$SRC_NAME already compile and installed" 
        return 0; 
    fi 

    msg_banner "start download and compile $SRC_NAME " 

    if [ ! -d $SRC_NAME ] ; then
        if [ ! -f $SRC_NAME.${PACK_SUFIX} ] ; then
           wget ${LYFTP_SRC}/${SRC_NAME}.${PACK_SUFIX}
           check_result "ERROR: download ${SRC_NAME} failure"
        fi

        tar -xjf $SRC_NAME.${PACK_SUFIX}
    fi

    cp config/${SRC_NAME}.config $SRC_NAME/.config

    cd $SRC_NAME

    sed -i "s|^CONFIG_CROSS_COMPILER_PREFIX.*|CONFIG_CROSS_COMPILER_PREFIX=\"${CROSSTOOL}\"|g" .config 
    sed -i "s|^CONFIG_PREFIX.*|CONFIG_PREFIX=\"$ROOTFS_PATH\"|g" .config

    make 
    #make uninstall && sudo make install
}


compile_busybox