%global __brp_check_rpaths %{nil}
%global packname  iTensor
%global packver   0.99.0
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.99.0
Release:          1%{?dist}%{?buildtag}
Summary:          ICA-Based Matrix/Tensor Decomposition

License:          MIT + file LICENSE
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 4.1.0
Requires:         R-core >= 4.1.0
BuildArch:        noarch
BuildRequires:    R-CRAN-MASS 
BuildRequires:    R-methods 
BuildRequires:    R-CRAN-rTensor 
BuildRequires:    R-stats 
Requires:         R-CRAN-MASS 
Requires:         R-methods 
Requires:         R-CRAN-rTensor 
Requires:         R-stats 

%description
Some functions for performing ICA, MICA, and Multilinear ICA are
implemented. ICA, MICA, and Multilinear ICA extract statistically
independent components from single matrix, multiple matrices, and single
tensor, respectively. For the details of these methods, see the reference
section of GitHub README.md <https://github.com/rikenbit/iTensor>.

%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}