#!/bin/bash
#
# Plugin to monitor the number of orphaned packages on the
# system (using deborphan). Might work on section distib, who knows...
#
# Based on the debsecan plugin by Nicolas Bouthors. 2016-09-02
#
# Olivie Mehani <shtrom@ssji.net>
#
# Licence : GPLv2
#
#%# family=auto
#%# capabilities=autoconf

# Auto enable if we have deborphan only
if [ "$1" = "autoconf" ] ; then
  if [ -x /usr/bin/deborphan ]; then
    echo yes
  else
    echo no
  fi
  exit 0
fi

# Fail if we don't have deborphan
if [ ! -x /usr/bin/deborphan ]; then
  exit 1
fi

OUT=`mktemp -t deborphan.XXXXXX`
deborphan --show-section --guess-all | sed 's/\//_/' | sort > ${OUT}

CATEGORIES="$(sed 's/ .*//' ${OUT} | uniq)"

if [ "$1" = "config" ]; then
  cat <<EOF
graph_title Orphaned packages
graph_args -l 0 --base 1000
graph_vlabel number of packages
graph_category system
graph_period second
graph_info This graph show the number of orphaned packages on your system. Use deborphan to see details.
EOF
  for cat in ${CATEGORIES}; do
    cat <<EOF
${cat}.label ${cat/_/\/}
${cat}.type GAUGE
${cat}.draw AREASTACK
${cat}.min 0
${cat}.info The number of orphaned packages in ${cat/_/\/}
EOF
  done

else
  for cat in ${CATEGORIES}; do
    TMP=`mktemp -t deborphan.XXXXXX`
    sed -n "s/${cat} *//p" ${OUT} > ${TMP}
    echo "${cat}.value `cat ${TMP} | wc -l`"
    echo "${cat}.extinfo `echo $(cat ${TMP})`"
    rm ${TMP}
  done
fi

rm -f ${OUT}