#!/bin/sh
#
# mbuild - make sbuild and reprepro work together
#
# Copyright (c) 2008 martin f. krafft <madduck@debian.org>
# Released under the terms of the Artistic Licence 2.0.
#
set -eu

BUNDLEDIR="$HOME/reprepro/bundles"
REPREPRODIR="$HOME/reprepro"

DINSTALL="reprepro --basedir $REPREPRODIR include \$dist"

GNUPGHOME="$REPREPRODIR/.gnupg"; export GNUPGHOME
KEYID=330c4a75

DIR="$HOME/sbuild"
cd "$DIR"

sbuild_args=
schangesfile=
arch=
dist=
for opt in "$@"; do
  case "$opt" in
    --arch=*) arch="${opt#--arch=}";;
    --dist=*) dist="${opt#--dist=}";;
    -sa) sbuild_args="${sbuild_args:+$sbuild_args }--force-orig-source";;
    --*) sbuild_args="${sbuild_args:+$sbuild_args }$opt";;
    *_source.changes)
      if [ -z "$schangesfile" ]; then
        if [ -f "$opt" ] && [ -r "$opt" ]; then
          schangesfile="$opt"
        else
          echo "E: file does not exist: $opt" >&2
          exit 1
        fi
      else
        echo "E: cannot pass more than one source changes file: $opt" >&2
        exit 1
      fi
      ;;
    *)
      echo "E: unknown option: $opt" >&1
      exit 1
      ;;
  esac
done

schangesfile_basename="${schangesfile##*/}"
packagenameversion="${schangesfile_basename%_*}"

builddir="$(mktemp -dp "$DIR" "${packagenameversion}.XXXXXXXX")"
trap "rm -R '$builddir'" 0

cd "${schangesfile%/*}"
dcmd cp "${schangesfile##*/}" "$builddir"
schangesfile="$schangesfile_basename"

cd "$builddir"

sbuild $sbuild_args --arch="$arch" --arch-all --dist="$dist" --keyid=$KEYID \
  "$packagenameversion".dsc

changesfile="${packagenameversion}_${arch}.changes"

eval $DINSTALL "$schangesfile"
eval $DINSTALL "$changesfile"

mv "$changesfile" "${changesfile}.binonly"
mergechanges "$schangesfile" "${changesfile}.binonly" > "$changesfile"
rm "${changesfile}.binonly" "$schangesfile"

bundle="$BUNDLEDIR/${packagenameversion}.bundle.tar"
dcmd tar -chf "$bundle" "$changesfile"

rm -r "$builddir"
trap - 0

echo "Bundle available at $bundle"