#!/bin/bash -e

# to be invoked from uscan (debian/watch)

while [ "$1" ]; do
    case $1 in
    --upstream-version|-v)
        shift; version="$1"
        ;;
    esac
    shift
done

set -eu

name=$(dpkg-parsechangelog -SSource)
origtarball="$(readlink -f ../${name}-${version}.orig.tar.xz)"

mapfile -t downloaded < <(ls ../${name}-${version}.tar.* 2>/dev/null || true)

# Check length
if (( ${#downloaded[@]} > 1 )); then
  printf 'Error: More than one .orig.tar.* file found:\n' >&2
  printf '  %s\n' "${downloaded[@]}" >&2
  exit 1
elif (( ${#downloaded[@]} == 0 )); then
  echo "No upstream tarbal file found." >&2
  exit 1
fi

downloaded=${downloaded[0]}

tmpdir=$(mktemp -d)
trap 'rm -rf ${tmpdir}' EXIT

tar xzf "$downloaded" -C "$tmpdir"
mkdir "${tmpdir}/${name}-${version}/"

mv ${tmpdir}/*/image/* "${tmpdir}/${name}-${version}/"
cd ${tmpdir}

tar cJf $origtarball "./${name}-${version}/"
echo "Repacked $origtarball"
