#!/bin/bash

# exit shell script when command get error
set -e

# crosstool name
BUILDROOT_NAME=gcc-10.4-cortexA7-2023.02

# crosstool download server URL
LYFTP_PUB=http://master.iot-yun.club:2211/imx/crosstool

# install path defined in build shell script
INST_PATH=/opt/buildroot

# buildroot version
BR_VER=buildroot-2023.02

# set workspace to build buildroot
WORK_SPACE=${HOME}

if [ -d $INST_PATH/$BUILDROOT_NAME ] ; then
    echo "crosstool $BUILDROOT_NAME already installed to \"$INST_PATH\""
    exit
fi

# check install path is writable or not
if [ ! -w $INST_PATH ] ; then
    CUR_USER=`whoami`

    echo "ERROR: Crosstool install path \"$INST_PATH\" not writable, please solve it by follow command: "
    echo "          sudo sh -c 'mkdir -p $INST_PATH && chown $CUR_USER.$CUR_USER $INST_PATH' "
    exit
fi


cd $WORK_SPACE

# Download source code pacakge, it's about 1.8GB
if [ ! -s ${BR_VER}-packets.tar.xz ] ; then
    wget $LYFTP_PUB/${BR_VER}-packets.tar.xz
fi

if [ ! -d ${BR_VER} ] ; then
    tar -xJf ${BR_VER}-packets.tar.xz
fi

cd ${BR_VER}

chmod +x build.sh

./build.sh

echo ""
$INST_PATH/$BUILDROOT_NAME/bin/arm-linux-gcc -v

echo ""
echo " -- crosstool already installed to \"$INST_PATH/$BUILDROOT_NAME\".";
echo " -- build workspace path is \"$WORK_SPACE/$BR_VER\", you can remove it now.";
echo ""