%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  secretbase
%global packver   0.5.0
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.5.0
Release:          1%{?dist}%{?buildtag}
Summary:          Cryptographic Hash and Extendable-Output Functions

License:          GPL (>= 3)
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 3.5
Requires:         R-core >= 3.5

%description
Fast and memory-efficient streaming hash functions. Performs direct
hashing of strings, raw bytes, and files potentially larger than memory,
as well as hashing in-memory objects through R's serialization mechanism,
without requiring allocation of the serialized object. Implementations
include the SHA-256, SHA-3 and 'Keccak' cryptographic hash functions,
SHAKE256 extendable-output function (XOF), and 'SipHash' pseudo-random
function. The SHA-3 Secure Hash Standard was published by the National
Institute of Standards and Technology (NIST) in 2015 at
<doi:10.6028/NIST.FIPS.202>. The SHA-256 Secure Hash Standard was
published by NIST in 2002 at
<https://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf>.

%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}