%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  mlr3torch
%global packver   0.1.0
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.1.0
Release:          1%{?dist}%{?buildtag}
Summary:          Deep Learning with 'mlr3'

License:          LGPL (>= 3)
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 3.5.0
Requires:         R-core >= 3.5.0
BuildArch:        noarch
BuildRequires:    R-CRAN-checkmate >= 2.2.0
BuildRequires:    R-CRAN-paradox >= 1.0.0
BuildRequires:    R-CRAN-mlr3pipelines >= 0.6.0
BuildRequires:    R-CRAN-mlr3 >= 0.20.0
BuildRequires:    R-CRAN-mlr3misc >= 0.14.0
BuildRequires:    R-CRAN-torch >= 0.13.0
BuildRequires:    R-CRAN-backports 
BuildRequires:    R-CRAN-data.table 
BuildRequires:    R-CRAN-lgr 
BuildRequires:    R-methods 
BuildRequires:    R-CRAN-R6 
BuildRequires:    R-CRAN-withr 
Requires:         R-CRAN-checkmate >= 2.2.0
Requires:         R-CRAN-paradox >= 1.0.0
Requires:         R-CRAN-mlr3pipelines >= 0.6.0
Requires:         R-CRAN-mlr3 >= 0.20.0
Requires:         R-CRAN-mlr3misc >= 0.14.0
Requires:         R-CRAN-torch >= 0.13.0
Requires:         R-CRAN-backports 
Requires:         R-CRAN-data.table 
Requires:         R-CRAN-lgr 
Requires:         R-methods 
Requires:         R-CRAN-R6 
Requires:         R-CRAN-withr 

%description
Deep Learning library that extends the mlr3 framework by building upon the
'torch' package. It allows to conveniently build, train, and evaluate deep
learning models without having to worry about low level details. Custom
architectures can be created using the graph language defined in
'mlr3pipelines'.

%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}