%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  regda
%global packver   1.0
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.0
Release:          1%{?dist}%{?buildtag}
Summary:          Regularised Discriminant Analysis

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


BuildRequires:    R-devel >= 4.0
Requires:         R-core >= 4.0
BuildArch:        noarch
BuildRequires:    R-CRAN-doParallel 
BuildRequires:    R-CRAN-foreach 
BuildRequires:    R-parallel 
BuildRequires:    R-CRAN-Rfast 
BuildRequires:    R-CRAN-Rfast2 
BuildRequires:    R-stats 
Requires:         R-CRAN-doParallel 
Requires:         R-CRAN-foreach 
Requires:         R-parallel 
Requires:         R-CRAN-Rfast 
Requires:         R-CRAN-Rfast2 
Requires:         R-stats 

%description
Regularised discriminant analysis functions. The classical regularised
discriminant analysis proposed by Friedman in 1989, including
cross-validation, of which the linear and quadratic discriminant analyses
are special cases. Further, the regularised maximum likelihood linear
discriminant analysis, including cross-validation. References: Friedman
J.H. (1989): "Regularized Discriminant Analysis". Journal of the American
Statistical Association 84(405): 165--175. <doi:10.2307/2289860>. Friedman
J., Hastie T. and Tibshirani R. (2009). "The elements of statistical
learning", 2nd edition. Springer, Berlin. <doi:10.1007/978-0-387-84858-7>.
Tsagris M., Preston S. and Wood A.T.A. (2016). "Improved classification
for compositional data using the alpha-transformation". Journal of
Classification, 33(2): 243--261. <doi:10.1007/s00357-016-9207-5>.

%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}