%global __brp_check_rpaths %{nil}
%global packname  EnsemblePCReg
%global packver   1.1.4
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.1.4
Release:          1%{?dist}%{?buildtag}
Summary:          Extensible Package for Principal-Component-Regression-Based Heterogeneous Ensemble Meta-Learning

License:          GPL (>= 2)
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-EnsembleBase 
BuildRequires:    R-methods 
BuildRequires:    R-parallel 
Requires:         R-CRAN-EnsembleBase 
Requires:         R-methods 
Requires:         R-parallel 

%description
Extends the base classes and methods of 'EnsembleBase' package for
Principal-Components-Regression-based (PCR) integration of base learners.
Default implementation uses cross-validation error to choose the optimal
number of PC components for the final predictor. The package takes
advantage of the file method provided in 'EnsembleBase' package for
writing estimation objects to disk in order to circumvent RAM bottleneck.
Special save and load methods are provided to allow estimation objects to
be saved to permanent files on disk, and to be loaded again into temporary
files in a later R session. Users and developers can extend the package by
extending the generic methods and classes provided in 'EnsembleBase'
package as well as this package.

%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}