在线使用，通过 shlink 跳过来

install.sh

#!/bin/sh
set -e

is_wsl() {
	case "$(uname -r)" in
	*microsoft* ) true ;; # WSL 2
	*Microsoft* ) true ;; # WSL 1
	* ) false;;
	esac
}

is_darwin() {
	case "$(uname -s)" in
	*darwin* ) true ;;
	*Darwin* ) true ;;
	* ) false;;
	esac
}

is_linux() {
	case "$(uname)" in
	*linux* ) true ;;
	*Linux* ) true ;;
	* ) false;;
	esac
}

is_amd64() {
	case "$(uname -m)" in
	*x86_64* ) true ;;
	* ) false;;
	esac
}

is_arm64() {
	case "$(uname -m)" in
	*arm64* ) true ;;
	*aarch64* ) true ;;
	* ) false;;
	esac
}


command_exists() {
	command -v "$@" > /dev/null 2>&1
}

do_install() {
	user="$(id -un 2>/dev/null || true)"

	sh_c='sh -c'
	if [ "$user" != 'root' ]; then
		if command_exists sudo; then
			sh_c='sudo -E sh -c'
		elif command_exists su; then
			sh_c='su -c'
		else
			cat >&2 <<-'EOF'
			Error: 安装脚本需要 root 权限，但无法在系统里找到 sudo 或者 su 命令
			EOF
			exit 1
		fi
	fi
	
	baseurl="https://cnative-client-release.oss-cn-beijing.aliyuncs.com/cnative/latest/"
	
	curl='curl -L'
	local_name='cnative'
	download_name=''
	os=''
	install_path='/usr/local/bin'
	arch='amd64'
	install_cmd="install -m 0755"
	
	if is_arm64; then
		arch='arm64'
	fi
	
	if is_linux; then
		os='linux'
	fi
	
	if is_darwin; then
		os='darwin'
	fi
	
	download_name="cnative-$os-$arch"
	
	if is_wsl; then
		curl='curl.exe -LO'
		local_name='cnative.exe'
		install_path='C:\Windows'
		os='windows'
		download_name="cnative-windows-amd64.exe"
	fi
	
	$sh_c "$curl -o $local_name $baseurl$download_name"
	
	if is_wsl; then
		mv "$local_name" "$install_path"
	else
		$sh_c "$install_cmd $local_name /usr/local/bin/cnative"
	fi
}

do_install