%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  collapse
%global packver   2.1.2
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          2.1.2
Release:          1%{?dist}%{?buildtag}
Summary:          Advanced and Fast Data Transformation

License:          GPL (>= 2) | 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
BuildRequires:    R-CRAN-Rcpp >= 1.0.1
Requires:         R-CRAN-Rcpp >= 1.0.1

%description
A large C/C++-based package for advanced data transformation and
statistical computing in R that is extremely fast, class-agnostic, robust,
and programmer friendly. Core functionality includes a rich set of S3
generic grouped and weighted statistical functions for vectors, matrices
and data frames, which provide efficient low-level vectorizations, OpenMP
multithreading, and skip missing values by default. These are integrated
with fast grouping and ordering algorithms (also callable from C), and
efficient data manipulation functions. The package also provides a
flexible and rigorous approach to time series and panel data in R, fast
functions for data transformation and common statistical procedures,
detailed (grouped, weighted) summary statistics, powerful tools to work
with nested data, fast data object conversions, functions for memory
efficient R programming, and helpers to effectively deal with variable
labels, attributes, and missing data. It seamlessly supports base R
objects/classes as well as 'units', 'integer64', 'xts'/ 'zoo', 'tibble',
'grouped_df', 'data.table', 'sf', and 'pseries'/'pdata.frame'.

%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}