#!/bin/bash
#
# Simple Debian image downloader.
#

# Parameters
HASHES="MD5SUMS SHA1SUMS SHA256SUMS SHA512SUMS"

# Arguments
BASENAME="`basename $0`"
URL="$1"
BASE="`dirname $URL`"
RATE="$2"

# Syntax
if [ -z "$1" ]; then
  echo "usage: $BASENAME <image-url>"
  exit 1
fi

# Fetch hashes
for hash in $HASHES; do
  wget -c $BASE/$hash
  wget -c $BASE/$hash.sig
done

# Set rate limit
if [ ! -z "$RATE" ]; then
  LIMIT="--limit-rate=$RATE"
fi

# Get the image
wget -c $LIMIT $URL

# Teardown
echo "Please check `basename $URL` integrity!"