#!/bin/bash

CROSS_COMPILER=arm-none-eabi-
LN_FILE_NAME=arm-m5plus-linux-
VERSION=9-2020-q2
TAR_NAME=gcc-arm-none-eabi-9-2020-q2-update

TOP_DIR=/opt/M5Plus
TOOL_DIR=$TOP_DIR/${TAR_NAME}
TAR_BIN_DIR=$TOOL_DIR/bin
BIN_FILES=$TOOL_DIR/bin/{CROSS_COMPILER}*
TOOLS_PKG="`dirname $0`/${TAR_NAME}.tar.bz2"

set +e

if [ -z "$1" ]; then
	echo "CROSS_COMPILER_PATH=$TAR_BIN_DIR"
	if [ -f $TOOL_DIR/version ]; then
		if [ -n "`grep ${VERSION} $TOOL_DIR/version`" ]; then
			echo "Cross Tools has been installed yet!" >&2
			exit 0
		fi
	else
		echo "Do not have version file" >&2
	fi

	eval $0 force
	[ $? == 0 ] && exit 0

	echo "sorry, you must have super privilege!" >&2
	select choose in 'I have root passwd' 'I have sudo privilege' 'Try again' 'Ignore' 'Aboart'
	do
		case $choose in
		*root*)
			su -c "$0 force"
			[ $? == 0 ] && break
			;;
		*sudo*)
			sudo $0 force
			[ $? == 0 ] && break
			;;
		Try*)
			eval $0 force
			[ $? == 0 ] && break
			;;
		Ignore)
			exit 0
			;;
		Aboart)
			exit 1
			;;
		*)
			echo "Invalid select, please try again!" >&2
			continue
			;;
		esac

		echo "Install cross tools failed!" >&2
	done

	exit 0
fi

mkdir -pv $TOP_DIR
[ $? != 0 ] && exit 1

if [ -d $TOOL_DIR ]
then
	echo "Delete exist directory..." >&2
	rm $TOOL_DIR -rf
else
	mkdir -pv $TOOL_DIR
fi

echo "Extract cross tools ..." >&2
tar -xjf $TOOLS_PKG -C $TOP_DIR
[ $? != 0 ] && exit 1


# creat link
rm $TAR_BIN_DIR -rf
mkdir -p $TAR_BIN_DIR
for armlinux in $BIN_FILES; do
       ln $armlinux $TAR_BIN_DIR/$LN_FILE_NAME`basename $armlinux | cut -b 34-` -sv
done

sed -i  '/\/arm-hisiv100nptl-linux\//d' /etc/profile
[ $? != 0 ] && exit 1

if [ -z "`grep "$TAR_BIN_DIR" < /etc/profile`" ]; then
		echo "export path $TAR_BIN_DIR" >&2
		cat >> /etc/profile << EOF

	# `date`
	# Cross-Toolchain PATH
	export PATH="$TAR_BIN_DIR:\$PATH"
	#
EOF

	[ $? != 0 ] && exit 1
else
	echo "skip export toolchains path" >&2
fi

exit 0