#!/bin/sh

# ---------------------------------------------------------------
# Copyright 2007 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
# simple script to build Harbour-Windows cross build RPMs
#
# See LICENSE.txt for licensing terms.
# ---------------------------------------------------------------

test_reqrpm() {
  rpm -q --whatprovides "$1" >/dev/null 2>&1
}

get_rpmmacro() {
  _R="$(rpm --showrc | sed -e "/^-14:.${1}[^a-z0-9A-Z_]/ !d" -e "s/^-14: ${1}.//")"
  _X="$(echo "${_R}" | sed -e 's/.*\(%{\([^}]*\)}\).*/\2/')"
  while [ "${_X}" != "${_R}" ]; do
    _Y=$(get_rpmmacro "$_X")
    if [ -n "${_Y}" ]; then
      _R="$(echo "${_R}" | sed -e "s!%{${_X}}!${_Y}!g")"
      _X="$(echo "${_R}" | sed -e 's/.*\(%{\([^}]*\)}\).*/\2/')"
    else
      _X="${_R}"
    fi
  done
  printf %s "${_R}"
}

for d in /usr /usr/local /usr/local/mingw32 /opt/xmingw /opt/cross; do
  if [ -z "${TARGET}" ]; then
    TARGET=$(find $d/bin -maxdepth 1 -name 'i[3456]86*-mingw*-gcc' \
            2>/dev/null \
            | sed -e '1 !d' -e 's/.*\(i[3456]86.*-mingw[^-]*\).*/\1/g')
    MINGW_DIR=$d
  fi
done

if [ -z "${TARGET}" ]; then
  echo "Could not determine the location for the MinGW32 cross-compiler."
  echo "Please install it or add valid path to the $0 script."
  exit 1
fi

HB_CCPREFIX="$TARGET-"
HB_CCPATH="$MINGW_DIR/bin"

cd "$(dirname "$0")"
. ./mpkg_ver.sh
hb_ver=$(get_hbver)
hb_verstat=$(get_hbverstat)
[ -n "${hb_verstat}" ] || hb_verstat='0'

NEED_RPM='make gcc binutils'

FORCE=''

LAST=""
while [ $# -gt 0 ]; do
  if [ "$1" = '--force' ]; then
    FORCE='yes'
  else
    INST_PARAM="${INST_PARAM} $1"
  fi
  LAST="$1"
  shift
done

TOINST_LST=''
for i in ${NEED_RPM}; do
  test_reqrpm "$i" || TOINST_LST="${TOINST_LST} $i"
done

if [ -z "${TOINST_LST}" ] || [ "${FORCE}" = 'yes' ]; then
  . ./mpkg_src.sh
  stat="$?"
  if [ -z "${hb_filename}" ]; then
    echo "The script ./mpkg_src.sh didn't set archive name to \${hb_filename}"
    exit 1
  elif [ "${stat}" != 0 ]; then
    echo 'Error during packing the sources in ./mpkg_src.sh'
    exit 1
  elif [ -f "${hb_filename}" ]; then
    if [ "$(id -u)" != 0 ] && \
       [ ! -f "${HOME}/.rpmmacros" ]; then
      RPMDIR="${HOME}/RPM"
      mkdir -p \
        "${RPMDIR}/BUILD" \
        "${RPMDIR}/RPMS" \
        "${RPMDIR}/SOURCES" \
        "${RPMDIR}/SPECS" \
        "${RPMDIR}/SRPMS"
      echo "%_topdir ${RPMDIR}" > "${HOME}/.rpmmacros"
    else
      RPMDIR=$(get_rpmmacro '_topdir')
    fi

    mv -f "${hb_filename}" "${RPMDIR}/SOURCES/"
    sed -e "s|^%define version .*$|%define version   ${hb_ver}|g" \
        -e "s|^%define releasen .*$|%define releasen  ${hb_verstat}|g" \
        -e "s|^%define hb_ccpath .*$|%define hb_ccpath ${HB_CCPATH}|g" \
        -e "s|^%define hb_ccpref .*$|%define hb_ccpref ${HB_CCPREFIX}|g" \
        harbour-win.spec.in > "${RPMDIR}/SPECS/harbour-win.spec"
    if which rpmbuild >/dev/null 2>&1; then
      RPMBLD="rpmbuild"
    else
      RPMBLD="rpm"
    fi
    cd ${RPMDIR}/SPECS
    ${RPMBLD} -ba harbour-win.spec ${INST_PARAM}
  else
    echo "Cannot find archive file: ${hb_filename}"
    exit 1
  fi
else
  echo 'If you want to build Harbour compiler'
  echo 'you have to install the folowing RPM files:'
  echo "${TOINST_LST}"
  exit 1
fi