#!/bin/bash
# Filename:      ${GRML_FAI_CONFIG}/config/scripts/GRMLBASE/01-packages
# Purpose:       check for packages that have been requested but could not be installed
# 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

PACKAGE_LIST=/var/log/install_packages.list

if ! [ -r "$target/${PACKAGE_LIST}" ] ; then
  echo "No $target/${PACKAGE_LIST} found, will not run package validation check."
else
  printf "Validating package list: "

  TMPSTDOUT=$(mktemp)
  TMPSTDERR=$(mktemp)

  # 1) catch packages that aren't in state 'ii' (marked for installation
  # and successfully instead) on stdout
  # 2) catch error messages like 'dpkg-query: no packages found matching $package"
  # for packages unknown to dpkg on stderr
  # NOTE: 'grep -v -- '-$' ignores packages in FAI's package list that are
  # marked for removal
  $ROOTCMD dpkg --list $(grep -v '^#' $target/${PACKAGE_LIST} | grep -v -- '-$') 2>"$TMPSTDERR" | \
    grep -e '^[urph][ncufhWt]' > "$TMPSTDOUT" || true

  # extract packages from stdout
  awk '/^un/ {print $2 " not_installable"}' "$TMPSTDOUT" > "$LOGDIR/package_errors.log"

  # extract packages from stderr
  grep 'packages found matching' "$TMPSTDERR" | \
    sed 's/dpkg-query: [Nn]o packages found matching \(.*\)/\1 not_installable/' >> "$LOGDIR/package_errors.log"

  if [ -s "$LOGDIR/package_errors.log" ] ; then
    printf "failed (there have been errors, find them at $LOGDIR/package_errors.log)\n"
  else
    printf "done - no errors found\n"
  fi

  rm -f "$TMPSTDOUT" "$TMPSTDERR"
fi

## END OF FILE #################################################################
# vim:ft=sh expandtab ai tw=80 tabstop=4 shiftwidth=2