#!/bin/bash

# relative path to the cmake source tree directory (contains "CMakeLists.txt")
SRCDIR="."

# relative path to the cmake build tree directory 
BUILDDIR="build"

DIR=$(pwd)

SCRIPTNAME=$(basename "$0" 2>/dev/null || echo "$0")

if [[ ! -f "$DIR"/"$SRCDIR"/CMakeLists.txt ]]
then
  echo "$SRCDIR/CMakeLists.txt not found" >&2
  echo "please run '$SCRIPTNAME' from its containing directory" >&2
  exit 1
fi

for OPTION in "$@"
do
  if [[ "$OPTION" == "--clean" ]]
  then
    rm -r "$BUILDDIR"
  elif [[ "$OPTION" == "--update-translations" ]]
  then
    CMAKE_ARGS="$CMAKE_ARGS -DUPDATE_TRANSLATIONS:BOOL=ON"
  else
    echo "usage: $SCRIPTNAME [--clean] [--update-translations]" >&2
    exit 1
  fi
done

# note: NCORES may be too large on systems with hyperthreading
NCORES=$(grep -c "^processor" /proc/cpuinfo 2>/dev/null)
if [[ ! $NCORES -ge 1 ]]
then
  NCORES=1
fi

mkdir -p "$BUILDDIR"
cd "$BUILDDIR"

cmake $CMAKE_ARGS "$DIR"/"$SRCDIR"/ && make -j $NCORES

cd "$DIR"