%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  oem
%global packver   2.0.12
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          2.0.12
Release:          1%{?dist}%{?buildtag}
Summary:          Orthogonalizing EM: Penalized Regression for Big Tall Data

License:          GPL (>= 2)
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 3.2.0
Requires:         R-core >= 3.2.0
BuildRequires:    R-CRAN-RSpectra >= 0.16.2
BuildRequires:    R-CRAN-Rcpp >= 0.11.0
BuildRequires:    R-CRAN-bigmemory 
BuildRequires:    R-CRAN-Matrix 
BuildRequires:    R-CRAN-foreach 
BuildRequires:    R-methods 
BuildRequires:    R-CRAN-RcppEigen 
BuildRequires:    R-CRAN-BH 
BuildRequires:    R-CRAN-RcppArmadillo 
Requires:         R-CRAN-Rcpp >= 0.11.0
Requires:         R-CRAN-bigmemory 
Requires:         R-CRAN-Matrix 
Requires:         R-CRAN-foreach 
Requires:         R-methods 

%description
Solves penalized least squares problems for big tall data using the
orthogonalizing EM algorithm of Xiong et al. (2016)
<doi:10.1080/00401706.2015.1054436>. The main fitting function is oem()
and the functions cv.oem() and xval.oem() are for cross validation, the
latter being an accelerated cross validation function for linear models.
The big.oem() function allows for out of memory fitting. A description of
the underlying methods and code interface is described in Huling and Chien
(2022) <doi:10.18637/jss.v104.i06>.

%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}