%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  doFuture
%global packver   1.0.0
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.0.0
Release:          1%{?dist}%{?buildtag}
Summary:          Use Foreach to Parallelize via the Future Framework

License:          LGPL (>= 2.1)
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel
Requires:         R-core
BuildArch:        noarch
BuildRequires:    R-CRAN-foreach >= 1.5.0
BuildRequires:    R-CRAN-future >= 1.32.0
BuildRequires:    R-CRAN-future.apply 
BuildRequires:    R-CRAN-globals 
BuildRequires:    R-CRAN-iterators 
BuildRequires:    R-parallel 
BuildRequires:    R-utils 
Requires:         R-CRAN-foreach >= 1.5.0
Requires:         R-CRAN-future >= 1.32.0
Requires:         R-CRAN-future.apply 
Requires:         R-CRAN-globals 
Requires:         R-CRAN-iterators 
Requires:         R-parallel 
Requires:         R-utils 

%description
The 'future' package provides a unifying parallelization framework for R
that supports many parallel and distributed backends. The 'foreach'
package provides a powerful API for iterating over an R expression in
parallel. The 'doFuture' package brings the best of the two together.
There are two alternative ways to use this package. The first is the
traditional 'foreach' approach by registering the 'foreach' adapter
'registerDoFuture()' and so that 'y <- foreach(...) %%dopar%% { ... }' runs
in parallelizes with the 'future' framework. The other alternative is to
use 'y <- foreach(...) %%dofuture%% { ... }', which does not require using
'registerDoFuture()' and has many advantages over '%%dopar%%'.

%prep
%setup -q -c -n %{packname}

# fix end of executable files
find -type f -executable -exec grep -Iq . {} \; -exec sed -i -e '$a\' {} \;
# prevent binary stripping
[ -d %{packname}/src ] && find %{packname}/src -type f -exec \
  sed -i 's@/usr/bin/strip@/usr/bin/true@g' {} \; || true
[ -d %{packname}/src ] && find %{packname}/src/Make* -type f -exec \
  sed -i 's@-g0@@g' {} \; || true
# don't allow local prefix in executable scripts
find -type f -executable -exec sed -Ei 's@#!( )*/usr/local/bin@#!/usr/bin@g' {} \;

%build

%install

mkdir -p %{buildroot}%{rlibdir}
%{_bindir}/R CMD INSTALL -l %{buildroot}%{rlibdir} %{packname}
test -d %{packname}/src && (cd %{packname}/src; rm -f *.o *.so)
rm -f %{buildroot}%{rlibdir}/R.css
# remove buildroot from installed files
find %{buildroot}%{rlibdir} -type f -exec sed -i "s@%{buildroot}@@g" {} \;

%files
%{rlibdir}/%{packname}