%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  rgrpc
%global packver   0.1.1
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.1.1
Release:          1%{?dist}%{?buildtag}
Summary:          Asynchronous 'gRPC' Client and Server Runtime

License:          Apache License (>= 2)
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 4.3.0
Requires:         R-core >= 4.3.0
BuildRequires:    R-methods 
Requires:         R-methods 

%description
A first-class asynchronous 'gRPC' <https://grpc.io/> runtime built on the
generic asynchronous 'C++' API ('GenericStub', 'AsyncGenericService')
<https://grpc.github.io/grpc/cpp/>. Requests and responses cross the
native boundary as method names plus opaque byte buffers; 'RProtoBuf'
supplies and consumes the bytes, so schemas are loaded at runtime and no
generated service stubs are required. Native completion threads never call
the R API: completions are queued natively and delivered in batches on the
R main thread. Complements 'RProtoBuf' rather than replacing it. Links
against the system 'gRPC' library for 'C++'.

%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}