#!/bin/bash
#
# Copyright (c) 2019 Ant Financial
#
# SPDX-License-Identifier: Apache-2.0

set -o errexit
set -o nounset
set -o pipefail

script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# shellcheck source=/dev/null
source "${script_dir}/common.bash"

rustarch=$(arch_to_rust)

version="${1:-""}"
if [[ -z "${version}" ]]; then
	version=$(get_from_kata_deps ".languages.rust.meta.newest-version")
fi

echo "Install rust ${version}"

if ! command -v rustup > /dev/null; then
	curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain "${version}"
fi

export PATH="${PATH}:${HOME}/.cargo/bin"

## Still try to install the target version of toolchain,
## in case that the rustup has been installed but
## with a different version toolchain.
## Even though the target version toolchain has been installed,
## this command will not take too long to run.
rustup toolchain install "${version}"
rustup default "${version}"
if [[ "${rustarch}" == "x86_64" || "${rustarch}" == "aarch64" ]] ; then
	if [[ "$(uname -s)" != "Darwin" ]]; then
		rustup target add "${rustarch}-unknown-linux-musl"
		$([[ "$(whoami)" != "root" ]] && echo sudo) ln -sf /usr/bin/g++ /bin/musl-g++
	fi
else
	rustup target add "${rustarch}-unknown-linux-gnu"
fi
rustup component add rustfmt
rustup component add clippy
