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# Maintainer (AUR): Jingbei Li <i@jingbei.li>
# Contributor (AUR): Xwang <xwaang1976@gmail.com>
# Contributor (AUR): George Eleftheriou <eleftg>
# Contributor (AUR): Andrew Fischer <andrew_at_apastron.co>
# Contributor: bill-auger <bill-auger@programmer.net>

# parabola changes and rationale:
#  - removed parametis support


pkgname=openfoam
_majorver=7
_minorver=20200508 # git-tagged release version
pkgver=${_majorver}.${_minorver}
pkgrel=1
pkgdesc="computational fluid dynamics (CFD) toolbox, without non-free parmetis support"
arch=('x86_64')
url="http://www.openfoam.org"
license=("GPL")

depends=('bzip2' 'paraview' 'scotch' 'boost' 'flex' 'cgal')
makedepends=('bash')
conflicts=(openfoam3.0-git)
repalces=(openfoam3.0-git)

source=(OpenFOAM-${_majorver}::https://github.com/OpenFOAM/OpenFOAM-${_majorver}/archive/${_minorver}.tar.gz)
install=openfoam.install
sha256sums=('54e637521a89c96ad69d53a260c908a2eb429793a74788f24d6ca87ad22db38b')


prepare() {
  # Extract the current version and major of paraview and of scotch for use in the system preferences
  _pversion=$(pacman -Q $(pacman -Qqo $(which paraview)) | sed -e 's/.* //; s/-.*//g')
  _pmajor=`echo $_pversion | cut -d '.' -f1`
  _sversion=`pacman -Q scotch | sed -e 's/.* //; s/-.*//g'`

  # Generate and install the system preferences file
  echo "compilerInstall=system" > "${srcdir}"/prefs.sh
  echo "export WM_MPLIB=SYSTEMOPENMPI" >> "${srcdir}"/prefs.sh
  echo "export ParaView_VERSION=${_pversion}" >> "${srcdir}"/prefs.sh
  echo "export ParaView_MAJOR=${_pmajor}" >> "${srcdir}"/prefs.sh
  cp "${srcdir}"/prefs.sh "${srcdir}"/OpenFOAM-${_majorver}/etc #|| return 1

  # Generate the scotch.sh file for arch
  echo "export SCOTCH_VERSION=scotch_${_sversion}" > "${srcdir}"/scotch.sh
  echo "export SCOTCH_ARCH_PATH=/usr" >> "${srcdir}"/scotch.sh
  cp "${srcdir}"/scotch.sh "${srcdir}"/OpenFOAM-${_majorver}/etc/config #|| return 1
}

build() {
  # Setup the build environment
  export FOAM_INST_DIR="${srcdir}"
  foamDotFile="${srcdir}"/OpenFOAM-${_majorver}/etc/bashrc
  [ -f ${foamDotFile} ] || return 1

  # Enter build directory
  cd "${srcdir}"/OpenFOAM-${_majorver}

  # Build and clean up OpenFOAM
  bash -c "source ${foamDotFile}
          ./Allwmake || exit 1
          wclean all || exit 1
          wmakeLnIncludeAll || exit 1"
}

package() {
  cd "${srcdir}"

  # Create destination directories
  install -d "${pkgdir}"/opt/OpenFOAM "${pkgdir}"/etc/profile.d || return 1

  # copy package to pkgdir
  cp -r "${srcdir}"/OpenFOAM-${_majorver} "${pkgdir}"/opt/OpenFOAM || return 1

  # Add source file
  echo "export FOAM_INST_DIR=/opt/OpenFOAM" > "${pkgdir}"/etc/profile.d/openfoam-${_majorver}.sh || return 1
  echo "alias ofoam=\"source \${FOAM_INST_DIR}/OpenFOAM-${_majorver}/etc/bashrc\"" >> "${pkgdir}"/etc/profile.d/openfoam-${_majorver}.sh || return 1
  chmod 755 "${pkgdir}"/etc/profile.d/openfoam-${_majorver}.sh || return 1

  # Add stub thirdparty directory to keep openfoam happy
  install -d "${pkgdir}"/opt/OpenFOAM/ThirdParty-${_majorver} || return 1

  # Permission fixes - for system-wide install and use
  chmod -R go+r "${pkgdir}"/opt
  chmod -R 755 "${pkgdir}"/opt/OpenFOAM/OpenFOAM-${_majorver}/bin
  chmod -R 755 ""${pkgdir}""/opt/OpenFOAM/OpenFOAM-${_majorver}/etc
}