#!/bin/sh
# ベースのイメージをダウンロード
# Usage: bin/download version dist
# Required: curl
set -eu
base="http://dl-cdn.alpinelinux.org/alpine/latest-stable/releases/armhf"
curl "${base}/alpine-rpi-${1}-armhf.tar.gz" \
  | tar xzf - -C "${2}"