#!/bin/bash
# Filename:      ${GRML_FAI_CONFIG}/config/scripts/DEBORPHAN/10-whitelist
# Purpose:       whitelist packages to keep with deborphan
# Authors:       grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
# Bug-Reports:   see http://grml.org/bugs/
# License:       This file is licensed under the GPL v2 or any later version.
################################################################################

set -u
set -e

# workaround for dnsutils transitional package, we can drop this as soon as the
# bind9-dnsutils package is available in all our supported Debian releases
if [[ -r "${target}/usr/share/doc/dnsutils" ]] && [ -x "${target}/usr/bin/deborphan" ] ; then
  echo "Adding dnsutils to deborphan whitelist"
  # workaround for https://bugs.debian.org/929273 ("fseek on /var/lib/deborphan/keep: Invalid argument")
  if ! [ -f "${target}"/var/lib/deborphan/keep ] ; then
    printf 'dnsutils\n' > "${target}"/var/lib/deborphan/keep
  elif grep -q '^dnsutils$' "${target}"/var/lib/deborphan/keep ; then
    : # entry already present, avoid duplicates
  else
    printf 'dnsutils\n' >> "${target}"/var/lib/deborphan/keep
  fi
fi

# workaround for bsdmainutils transitional package, we can drop this as soon as the
# bsdextrautils + ncal packages are available in all our supported Debian releases
# (FTR: the transitional bsdmainutils package currently depends on
# bsdextrautils bsdutils calendar debianutils ncal)
if [[ -r "${target}/usr/share/doc/bsdmainutils" ]] && [ -x "${target}/usr/bin/deborphan" ] ; then
  echo "Adding bsdmainutils to deborphan whitelist"
  # workaround for https://bugs.debian.org/929273 ("fseek on /var/lib/deborphan/keep: Invalid argument")
  if ! [ -f "${target}"/var/lib/deborphan/keep ] ; then
    printf 'bsdmainutils\n' > "${target}"/var/lib/deborphan/keep
  elif grep -q '^bsdmainutils$' "${target}"/var/lib/deborphan/keep ; then
    : # entry already present, avoid duplicates
  else
    printf 'bsdmainutils\n' >> "${target}"/var/lib/deborphan/keep
  fi
fi

## END OF FILE #################################################################
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