#!/bin/bash

# Author: Johannes Ranke <jranke@uni-bremen.de>

# Script to automate backporting for CRAN
# Make sure the R version in ./backport is correctly set

# Creates a source package and binary packages for the following architecture
ARCH=i386
export ARCH

usage()
{
echo "Usage: ./backport_others [options] buster|bullseye|bookworm"
echo "Options:"
echo " -s     Skip apt-get update/upgrade and pbuilder update"
}

# Loop over options
skip=false
while test -n "${1}"; do
  case "$1" in
    -s | --skip)
      skip=true
      shift
      ;;
    -*)
      echo "Error: Unknown option: $1" >&2
      usage
      exit 1
      ;;
    *) # No more options
      break
      ;;
  esac
done

# Positional arguments
if [ $# -lt 1 ]; then usage; exit 1; fi
DIST=$1

# Update apt and pbuild chroot
if [ "$skip" = false ]
then
  sudo apt-get update
  sudo apt-get upgrade
  sudo -E pbuilder update \
      --distribution $DIST \
      --basetgz /var/cache/pbuilder/$DIST-$ARCH-base.tgz \
      --aptcache /var/cache/pbuilder/$DIST-$ARCH/aptcache
fi

# Validate distribution argument
if [ $DIST != "bookworm" ] && [ $DIST != "buster" ] && [ $DIST != "bullseye" ]; then usage; exit 1; fi
export DIST

# When doing a new repository, do lattice, r-cran-mass
# then rmatrix,
# then survival and nlme, then the rest

# Packages to backport:
#for i in dh-r; do # dh is not available in jessie, therefore start with this
#for i in lattice r-cran-mass; do
#for i in rmatrix; do
#for i in survival nlme; do
#for i in rpart mgcv boot cluster codetools foreign kernsmooth r-cran-class r-cran-coda r-cran-spatial r-cran-nnet littler rpy2 rkward; do
for i in lattice nlme rmatrix mgcv boot cluster codetools foreign kernsmooth r-cran-class r-cran-coda r-cran-spatial r-cran-nnet r-cran-mass rpart survival littler rpy2 rkward; do

  ./backport -s $i $DIST

done