# Copyright (c) 2019  Dave Love, University of Manchester
# MIT licence, per Fedora policy

%global wpsver 4.1

Name:		wrf
Version:	4.1.2
Release:	2%{?dist}
Summary:	The Weather Research and Forecasting Model
License:	Public Domain
URL:		http://www2.mmm.ucar.edu/wrf/
Source0:	https://github.com/wrf-model/WRF/archive/v%version/wrf-%version.tar.gz
# Concocted by painful iterations of configure.  (Had to be done
# against the static netcdf package, but the dynamic one works for
# building.)
Source1:	configure.wrf
Source2:	https://github.com/wrf-model/WPS/archive/v%wpsver/wps-%wpsver.tar.gz
Source3:	configure.wps
BuildRequires:	perl csh netcdf-fortran-devel m4 jasper-devel
BuildRequires:	libpng-devel

%global desc \
The Weather Research and Forecasting (WRF) Model is a next-generation\
mesoscale numerical weather prediction system designed for both\
atmospheric research and operational forecasting applications.  It\
features two dynamical cores, a data assimilation system, and a\
software architecture supporting parallel computation and system\
extensibility.  The model serves a wide range of meteorological\
applications across scales from tens of meters to thousands of kilometers.

%description
%desc

%package openmpi%{?el7:3}
Summary:	The Weather Research and Forecasting Model - openmpi%{?el7:3}
BuildRequires:	openmpi%{?el7:3}-devel
Requires:	openmpi%{?el7:3}%{?_isa}
Requires:	%name-common = %version-%release

%description openmpi%{?el7:3}
%desc

This is the openmpi%{?el7:3} version.

%package common
Summary:	Data for %name
BuildArch:	noarch

%description common
Data (the "run" directory) for %name.


%package -n wps-openmpi%{?el7:3}
Summary:	WRF Pre-Processing System - openmpi%{?el7:3}
BuildRequires:	openmpi%{?el7:3}-devel
Requires:	openmpi%{?el7:3}%{?_isa}

%description -n wps-openmpi%{?el7:3}
The WRF Pre-Processing System (WPS) is a collection of Fortran and C
programs that provides data used as input to the real.exe and
real_nmm.exe programs.  There are three main programs and a number of
auxiliary programs that are part of WPS.  Both the ARW and NMM
dynamical cores in WRF are supported by WPS.


%prep
%setup -q -c
tar fx %SOURCE0
cd WRF*
cp %SOURCE1 .
%if 0%{?fedora} || 0%{?rhel} > 7
# With gcc8, -O3 does unroll-and-jam, but the alternative is probably
# better with 4.8
sed -i -e 's/ -DNO_IEEE_MODULE//g' -e 's/-O3/-O2 -ftree-vectorize -funroll-loops/g' configure.wrf
%endif
# Try to make failures more obvious
find -name Makefile | xargs sed -i 's/make -i/make/'
# Fixme: This actually breaks the build, believe it or not, failing to
# find a .mod, but might help diagnose failed builds.
# sed -i 's/make -i/make/' configure.wrf
cd ..
tar fx %SOURCE2
cd WPS*
cp %SOURCE3 .
cd ..
# Account for even the make files assuming netcdf libs are in a "lib"
# subdir, and headers have to be in a sibling include.
mkdir ncdf4
ln -s %_bindir %_includedir ncdf4
ln -s %_libdir ncdf4/lib


%build
cd WRF*
module load mpi/openmpi%{?el7:3}-%{_arch}
srcdir=$(pwd) ./compile em_real
cd ..; cd WPS*
srcdir=$(pwd) ./compile


%install
mkdir -p %buildroot%_libdir/openmpi%{?el7:3}/bin %buildroot%_datadir/wrf
cd WRF*
cp -p main/*.exe %buildroot%_libdir/openmpi%{?el7:3}/bin
rm run/*.exe
cp -a run %buildroot%_datadir/wrf
cd ../WPS*
cp -a */src/*.exe %buildroot%_libdir/openmpi%{?el7:3}/bin


%files openmpi%{?el7:3}
%_libdir/openmpi%{?el7:3}/bin/wrf.exe

%files common
%doc WRF*/README
%_datadir/wrf

%files -n wps-openmpi%{?el7:3}
%doc WPS*/README
%exclude %_libdir/openmpi%{?el7:3}/bin/wrf.exe
%_libdir/openmpi%{?el7:3}/bin/*


%changelog
* Fri Jul 26 2019 Dave Love <loveshack@fedoraproject.org> - 4.1.2-2
- Add WPS

* Wed Jul  3 2019 Dave Love <loveshack@fedoraproject.org> - 4.1.1-1
- New version
- Drop patch

* Mon Jun 10 2019 Dave Love <loveshack@fedoraproject.org> - 4.1-4
- Make it a pure MPI version

* Fri Jun  7 2019 Dave Love <loveshack@fedoraproject.org> - 4.1-3
- Build em_real
- Make common package

* Wed Jun  5 2019 Dave Love <loveshack@fedoraproject.org> - 4.1-2
- Modify f2003 conditionals

* Tue Jun  4 2019 Dave love <dave.love@manchester.ac.uk> - 4.1-1
- New version with fixes to build with gfortran 4.8

* Fri May 31 2019 Dave Love <loveshack@fedoraproject.org> - 4.0.3-2
- Use openmpi3 on el7

* Fri Apr 26 2019 Dave Love <loveshack@fedoraproject.org> - 4.0.3-1
- Initial packaging