#!/bin/sh

DESTDIR=.build
CLEAN=0
DIST=fedora-18-local-x86_64
PACKAGE_PATH_BASE=$HOME/devel/specs

MOCKDIR=/var/lib/mock
MOCKCONF=/etc/mock
PACKAGES=

function die
{
  echo $@ >&2
  exit 1
}

function get_mock_path
{
  FILE="$MOCKCONF/$1.cfg"
  NAME=$(sed -n "s,^config_opts\['root'\]\s*=\s*'\(.*\)'.*$,\1,p" $FILE)

  echo $MOCKDIR/$NAME
}

while [ $# -gt 0 ]
do
  OPTION=$1
  shift

  case $OPTION in
    -b|--build)
      DESTDIR=$1
      shift
      ;;

    -c|--clean)
      CLEAN=1
      ;;

    -d|--dist)
      DIST=$1
      shift
      ;;

    --list-pkgs)
      for path in $(find $PACKAGE_PATH_BASE -maxdepth 2 -name '*.spec')
      do
        echo $(basename $(dirname $path))
      done
      exit 0
      ;;

    --list-dists)
      for profile in $(find $MOCKCONF -name '*.cfg' -printf '%f\n')
      do
        echo ${profile:0: -4}
      done
      exit 0
      ;;

    -h|--help)
      echo "Create a local repository from the RPMs found in the scan-path.

usage: $0 [ options ] < package name >

options:
  -b --build        Specify output for source/built RPMs (default: $DESTDIR)
  -c --clean        Clean build directory before building
  -d --dist         Specify distribution (mock profile name) (default: $DIST)
     --list-pkgs    List packages that can be built
     --list-dists   List available distributions

  -h --help         Show this help file"
      exit 1
      ;;

    --)
      PACKAGES="$PACKAGES $@"
      break
      ;;

    -*)
      echo "Unkown option $OPTION" >&2
      exit 1
      ;;

    *)
      PACKAGES="$PACKAGES $OPTION"
      ;;
  esac
done

[ "x$PACKAGES" = "x" ] && die Missing package name

#set -x

if [ $CLEAN -eq 1 ]
then
  rm -rf $DESTDIR/*
fi

if [ ! -d $DESTDIR ]
then
  mkdir -p $REPODIR
elif [ ! -w $REPODIR ]
then
  die "You don't have access to $REPODIR"
fi

mkdir -p $DESTDIR/srpm
mkdir -p $DESTDIR/rpm

BASE_DIR=$(pwd)

cd $DESTDIR
DESTDIR=$(pwd)
cd $BASE_DIR

for PACKAGE in $PACKAGES
do
  PACKAGE_PATH=$PACKAGE_PATH_BASE/$PACKAGE

  if [ ! -d $PACKAGE_PATH ]
  then
    echo "$PACKAGE_PATH not found"
    continue
  fi

  SPECFILE=$(find $PACKAGE_PATH -name '*.spec' | head -1)
  if [ "x$SPECFILE" = "x" ]
  then
    echo "$PACKAGE_PATH contains no spec file"
    continue
  fi

  mock --buildsrpm --spec $SPECFILE --sources $PACKAGE_PATH -r $DIST
  if [ $? -ne 0 ]
  then
    echo "Mock failed to create srpm from $SPECFILE"
    continue
  fi

  DISTPATH=$(get_mock_path $DIST)/result
  SRPM=$(find $DISTPATH -name '*.src.rpm' -printf '%f\n' | head -1)
  cp $DISTPATH/$SRPM $DESTDIR/srpm

  mock -r $DIST --rebuild $DESTDIR/srpm/$SRPM
  if [ $? -ne 0 ]
  then
    echo "Mock failed to build $SRPM"
    continue
  fi

  find $DISTPATH \( -name '*.rpm' -a ! -name '*.src.rpm' \) -exec cp {} $DESTDIR/rpm \;

  cd $BASE_DIR
done