%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  tinyimg
%global packver   0.4
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.4
Release:          1%{?dist}%{?buildtag}
Summary:          Optimize and Compress Images

License:          MIT + file LICENSE
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    cargo
BuildRequires:    R-devel
Requires:         R-core

%description
Optimize and compress images using 'Rust' libraries to reduce file sizes
while maintaining image quality. Supports PNG palette reduction and
dithering via the 'exoquant' crate before lossless PNG optimization via
the 'oxipng' crate, and JPEG re-encoding via the 'mozjpeg' crate. The
package provides functions to optimize individual image files or entire
directories, with configurable compression levels. Use tinyimg() as a
convenient entry point for mixed PNG/JPEG workflows.

%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}