#!/bin/sh
# $Id: fpc-version.in 5550 2009-02-19 18:14:43Z cher $
# Copyright (c) 2005-2008 Alexander Chernov <cher@ejudge.ru>

LANG_CONFIG_DIR="/home/judges/compile/conf/lang.d"

common_config() {
  echo 'long_name="Free Pascal"'
  echo 'src_sfx=".pas"'
}

failure() {
  rm -f conftest*
  echo 'version='
  echo 'arg="'"${arg}"'"'
  common_config
  echo 'FPCRUN=false'
  echo 'FPCDIR='
  [ "${verbose}" = 1 ] && echo "no" >&2
  exit 1
}

unset LANG
unset LC_ALL
unset LC_MESSAGES
unset LANGUAGE

if [ x"$1" = x-v ]
then
  verbose=1
  shift
fi

# recheck the language
if [ x"$1" = x-r ]
then
  arg="$2"
  [ x"$2" != x ] && FPCRUN="$2"
  [ "${FPCRUN}" = "" ] && FPCRUN="fpc"

  [ "${verbose}" = 1 ] && echo -n "checking whether Free Pascal is available..." >&2
  "${FPCRUN}" -v >/dev/null 2>/dev/null
  [ $? != 0 -a $? != 1 ] && failure
  version=`"${FPCRUN}" -h 2>/dev/null | grep "Free Pascal Compiler" | gawk '{ print $5; }'`
  [ $? != 0 -a $? != 1 ] && failure
  [ "${version}" != "" ] || failure
  cat > conftest.pas <<EOF
begin
  writeln('ok')
end.
EOF
  "${FPCRUN}" -So -XS conftest.pas -oconftest 2>/dev/null >/dev/null || failure
  [ -x conftest ] || failure
  ./conftest > /dev/null 2>/dev/null || failure

  rm -f ./conftest*
  FPCDIR=`dirname "${FPCRUN}"`
  [ "${FPCDIR}" = . ] && FPCDIR=""
  echo 'version="'"${version}"'"'
  echo 'arg="'"${arg}"'"'
  common_config
  echo 'FPCRUN="'"${FPCRUN}"'"'
  echo 'FPCDIR="'"${FPCDIR}"'"'
  [ "${verbose}" = 1 ] && echo "yes, ${FPCRUN}, ${version}" >&2
  exit 0
fi

if [ x"$1" = x-l ]
then
  echo "Free Pascal compiler [http://www.freepascal.org]"
  exit 0
fi

[ "${EJUDGE_LANG_CONFIG}" = "" ] && EJUDGE_LANG_CONFIG="${LANG_CONFIG_DIR}/fpc.cfg"

if [ -f "${EJUDGE_LANG_CONFIG}" ]
then
  . "${EJUDGE_LANG_CONFIG}"
else
  FPCRUN="fpc"
  FPCDIR=
fi

if [ x"${FPCRUN}" = x -o x"${FPCRUN}" = xfalse ]
then
  echo "This language is not supported." >&2
  exit 1
fi

if [ x"${FPCDIR}" != x ]
then
    PATH="${FPCDIR}:${PATH}"
fi

if [ x"$1" = x-p ]
then
    echo "${FPCRUN}"
    exit 0
fi
    
"${FPCRUN}" -h 2>/dev/null >/dev/null || exit 1

[ x"$1" = x-f ] && echo -n "Free Pascal "

"${FPCRUN}" -h 2>/dev/null | grep "Free Pascal Compiler" | gawk '{ print $5; }'
[ $? != 0 -a $? != 1 ] && exit 1
exit 0