%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  fastRG
%global packver   0.3.2
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.3.2
Release:          1%{?dist}%{?buildtag}
Summary:          Sample Generalized Random Dot Product Graphs in Linear Time

License:          MIT + file LICENSE
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-CRAN-Matrix 
BuildRequires:    R-CRAN-dplyr 
BuildRequires:    R-CRAN-ellipsis 
BuildRequires:    R-CRAN-ggplot2 
BuildRequires:    R-CRAN-glue 
BuildRequires:    R-CRAN-igraph 
BuildRequires:    R-methods 
BuildRequires:    R-CRAN-RSpectra 
BuildRequires:    R-stats 
BuildRequires:    R-CRAN-tibble 
BuildRequires:    R-CRAN-tidygraph 
BuildRequires:    R-CRAN-tidyr 
Requires:         R-CRAN-Matrix 
Requires:         R-CRAN-dplyr 
Requires:         R-CRAN-ellipsis 
Requires:         R-CRAN-ggplot2 
Requires:         R-CRAN-glue 
Requires:         R-CRAN-igraph 
Requires:         R-methods 
Requires:         R-CRAN-RSpectra 
Requires:         R-stats 
Requires:         R-CRAN-tibble 
Requires:         R-CRAN-tidygraph 
Requires:         R-CRAN-tidyr 

%description
Samples generalized random product graphs, a generalization of a broad
class of network models. Given matrices X, S, and Y with with non-negative
entries, samples a matrix with expectation X S Y^T and independent Poisson
or Bernoulli entries using the fastRG algorithm of Rohe et al. (2017)
<https://www.jmlr.org/papers/v19/17-128.html>. The algorithm first samples
the number of edges and then puts them down one-by-one.  As a result it is
O(m) where m is the number of edges, a dramatic improvement over
element-wise algorithms that which require O(n^2) operations to sample a
random graph, where n is the number of nodes.

%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}