%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  CpmERCCutoff
%global packver   1.0.0
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.0.0
Release:          1%{?dist}%{?buildtag}
Summary:          Calculation of Log2 Counts per Million Cutoff from ERCC Controls

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


BuildRequires:    R-devel >= 3.6
Requires:         R-core >= 3.6
BuildArch:        noarch
BuildRequires:    R-stats 
BuildRequires:    R-graphics 
Requires:         R-stats 
Requires:         R-graphics 

%description
Implementation of the empirical method to derive log2 counts per million
(CPM) cutoff to filter out lowly expressed genes using ERCC spike-ins as
described in Goll and Bosinger et.al
(2022)<doi:10.1101/2022.06.23.497396>. This package utilizes the synthetic
mRNA control pairs developed by the External RNA Controls Consortium
(ERCC) (ERCC 1 / ERCC 2) that are spiked into sample pairs at known ratios
at various absolute abundances.  The relationship between the observed and
expected fold changes is then used to empirically determine an optimal
log2 CPM cutoff for filtering out lowly expressed genes.

%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}