# This file defines a bunch of useful functions to automatize the build of SimGrid.



# get_version: define the version number of the svn into a version variable
get_version() {
  if [ x$version = x ] ; then
    cd ${SIMGRID_SVN_ROOT}
    svn up
    version="simgrid-3.3.4-svn-r"`svnversion`
    export version
  fi
}

# wait_archive: wait until the archive gets defined into the right position
wait_archive() {
  while [ ! -e ${SIMGRID_BASEDIR}/${version}.tar.gz ] ; do
    echo ${SIMGRID_BASEDIR}/${version}.tar.gz not found. Wait five seconds.
    sleep 5
  done
}

# make_dist: rebuild an archive from the svn
make_dist() {
  get_version
  if [ ! -e ${SIMGRID_BASEDIR}/${version}.tar.gz ] ; then
    cd ${SIMGRID_BASEDIR}
    echo "rebuild the missing files for compilation"
    if [ ! -e configure ] ; then
      ./bootstrap
    fi
    if [ ! -e Makefile ] ; then
       # Disable compilation optim to make it built faster
       ./configure --enable-maintainer-mode --disable-compile-optimizations
    fi
    echo "Make the archive"
    make all dist

    echo "Copy the archive in position"
    mkdir -p ${SIMGRID_BASEDIR}
    mv ${version}.tar.gz ${SIMGRID_BASEDIR}
  else
    echo "${SIMGRID_BASEDIR}/${version}.tar.gz already exists. Don't rebuild"
  fi
}

# clean_node: remove everything about this node
clean_node() {
  OS=`uname`
  node=`uname -n`
  # OS specific working directory 
  BUILDDIR=${SIMGRID_BASEDIR}/$OS/$node/$version
  export BUILDDIR
  
  # Clean any leftover from previous install
  if [ -e $BUILDDIR ] ; then
    echo "remove old directory $BUILDDIR"
    rm -rf $BUILDDIR
  fi
  mkdir -p $BUILDDIR
}

# open_archive: wait for archive to be built, cleanup previous
open_archive() {
  get_version
  clean_node
  wait_archive
  cd $BUILDDIR/..
  tar xfz ${SIMGRID_BASEDIR}/${version}.tar.gz
  cd $BUILDDIR
}