%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  future.mirai
%global packver   0.10.1
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.10.1
Release:          1%{?dist}%{?buildtag}
Summary:          A 'Future' API for Parallel Processing using 'mirai'

License:          GPL (>= 3)
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-mirai >= 2.2.0
BuildRequires:    R-CRAN-future >= 1.49.0
BuildRequires:    R-CRAN-parallelly 
BuildRequires:    R-utils 
Requires:         R-CRAN-mirai >= 2.2.0
Requires:         R-CRAN-future >= 1.49.0
Requires:         R-CRAN-parallelly 
Requires:         R-utils 

%description
Implementation of the 'Future' API <doi:10.32614/RJ-2021-048> on top of
the 'mirai' package <doi:10.5281/zenodo.7912722>. By using this package,
you get to take advantage of the benefits of 'mirai' plus everything else
that 'future' and the 'Futureverse' adds on top of it. It allows you to
process futures, as defined by the 'future' package, in parallel out of
the box, on your local machine or across remote machines. Contrary to
back-ends relying on the 'parallel' package (e.g. 'multisession') and
socket connections, 'mirai_cluster' and 'mirai_multisession', provided
here, can run more than 125 parallel R processes. As a reminder,
regardless which future backend is used by the user, the code does not
have to change, it gives identical results, and behaves exactly the same.

%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}