%global packname  wayback
%global packver   0.2.4
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.2.4
Release:          1%{?dist}%{?buildtag}
Summary:          Rock Solid Package Installation for Legacy R Versions

License:          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-CRAN-checkpoint 
Requires:         R-CRAN-checkpoint 

%description
Make sure packages are available at runtime without any setup. Package
installation, reproducibility and exchanging code can be frustrating
especially if code is used on older R versions. Often it is hard to puzzle
out which package versions are able to work together after some years have
passed and packages evolved further and further. The 'wayback' package
aims to make this process as painless and robust as possible by using
'MRAN's 'CRAN' snapshots to build local package libraries from way back.

%prep
%setup -q -c -n %{packname}

find -type f -executable -exec grep -Iq . {} \; -exec sed -i -e '$a\' {} \;
[ -d %{packname}/src ] && find %{packname}/src -type f -exec \
  sed -i 's@/usr/bin/strip@/usr/bin/true@g' {} \; || true

%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
find %{buildroot}%{rlibdir} -type f -exec sed -i "s@%{buildroot}@@g" {} \;

%files
%{rlibdir}/%{packname}