%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  rpca
%global packver   0.2.3
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.2.3
Release:          1%{?dist}%{?buildtag}
Summary:          RobustPCA: Decompose a Matrix into Low-Rank and Sparse Components

License:          GPL-2 | 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-compiler 
Requires:         R-compiler 

%description
Suppose we have a data matrix, which is the superposition of a low-rank
component and a sparse component. Candes, E. J., Li, X., Ma, Y., & Wright,
J. (2011). Robust principal component analysis?. Journal of the ACM
(JACM), 58(3), 11. prove that we can recover each component individually
under some suitable assumptions. It is possible to recover both the
low-rank and the sparse components exactly by solving a very convenient
convex program called Principal Component Pursuit; among all feasible
decompositions, simply minimize a weighted combination of the nuclear norm
and of the L1 norm. This package implements this decomposition algorithm
resulting with Robust PCA approach.

%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}