#!/bin/bash

######################################################################
###   bash <(curl -fsSL https://raw.lhy.life/discard/llvm.sh) --version=18   ##
######################################################################


## GetArgValue <key> <defValue>
## ./script --key=value
g_args=("$@")
function GetArgValue()
{
	local key="$1"
	local defvalue="$2"

	for arg in "${g_args[@]}"
	do
		if [[ "$arg" == "--$key="* ]]
		then
			echo "${arg#*=}"
			return
		fi
	done

	echo "$defvalue"
}

VERSION=$(GetArgValue "version" "18")

## clean
apt purge 'clang*' 'llvm*' -y
apt autopurge -y

## depend
apt update && apt install -y lsb-release wget software-properties-common gnupg g++-multilib wget git make
bash <(curl -fsSL https://apt.llvm.org/llvm.sh) $VERSION all

## add global path
echo "export PATH=/usr/lib/llvm-$VERSION/bin:\$PATH" >> /etc/profile
echo 'export CC=clang' >> /etc/profile
echo 'export CXX=clang++' >> /etc/profile