#!/bin/sh
set -e
ROOT=$(pwd)
while [ ! -d $ROOT/.git ]; do
  ROOT=$(dirname $ROOT)
  if [ "$ROOT" == "/" ; then
    echo "could not find root, are you in the git repository?"
    exit
  fi
done

[ -z $BUILD ] && BUILD=Debug
MACHINE=`uname -m`
[ -z "$CC" ] && [ ! -z `which gcc` ] && CC="clang"
[ -z "$CC" ] && [ ! -z `which gcc` ] && CC="gcc"
[ -z "$CC" ] && [ ! -z `which tcc` ] && CC="tcc"
[ -z "$CC" ] && [ ! -z `which cc` ] && CC="cc"
BIN_DIR="$ROOT/build-$MACHINE-$CC-$BUILD"
mkdir -p $BIN_DIR
ln -sf $BIN_DIR $BUILD

MACHINE=$(gcc -dumpmachine)
rm -f CMakeCache.txt

# use anything installed in /opt or /usr
LIBRARY_PATH=/opt/lib:/opt/lib/$MACHINE:/usr/lib/$MACHINE
INCLUDE_PATH=/opt/include:/usr/include
PREFIX_PATH=/opt

# I like to put stuff in ~/usr if I don't have permission to install packages on the machine:
if [ -d $HOME/usr ]; then
  LIBRARY_PATH=$HOME/usr/lib:$HOME/usr/lib/$MACHINE:$LIBRARY_PATH
  INCLUDE_PATH=$HOME/usr/include:$HOME/usr/include/$MACHINE:$INCLUDE_PATH
  PREFIX_PATH=$HOME/usr:$HOME/usr/local:$PREFIX_PATH
fi

path=`which tolua`
echo "TOLUA $path"
if [ "$HAVE_TOLUA" = "0" ] || [ ! -e $path ]; then
 echo "tolua is not installed, building from source"
 cd $ROOT/tolua ; make
 ARGS="$ARGS -DPC_TOLUA_DIR=$ROOT/tolua"
fi

path=`which lua`
if [ -e $path ]; then
 path=`dirname $path` # /opt/bin
 path=`dirname $path` # /opt
 if [ -e $path/include/lua.h ] && [ -d $path/lib ] ; then
  echo "lua is installed in $path"
  ARGS="$ARGS -DPC_LUA_DIR=$LUA"
 fi
fi

cd $BIN_DIR
cmake .. \
 $ARGS \
 -DCMAKE_MODULE_PATH=$ROOT/cmake/Modules \
 -DCMAKE_BUILD_TYPE=$BUILD \
 -DCMAKE_LIBRARY_PATH=$LIBRARY_PATH \
 -DCMAKE_INCLUDE_PATH=$INCLUDE_PATH \
 -DCMAKE_PREFIX_PATH=$PREFIX_PATH \
 -DCMAKE_INSTALL_PREFIX=$HOME/eressea/server $*
cd $OLDPWD