Munin contributed plugins

#!/bin/sh

: << =cut

=head1 NAME

deborphan - Monitor orphaned Debian packages

=head1 APPLICABLE SYSTEMS

Debian-ish systems with deborphan installed.

=head1 CONFIGURATION

None needed.

=head1 AUTHOR

Olivier Mehani <shtrom+munin@ssji.net>

Based on the debsecan plugin by Nicolas Bouthors. 2016-09-02

=head1 LICENSE

GPLv2

=head1 MAGIC MARKERS

  #%# family=auto

  #%# capabilities=autoconf

=cut

# shellcheck disable=SC1090

. "$MUNIN_LIBDIR/plugins/plugin.sh"

# Auto enable if we have deborphan only

if [ "$1" = "autoconf" ] ; then

  if which deborphan >/dev/null; then

    echo yes

  else

    echo "no (deborphan is missing)"

  fi

  exit 0

fi

# Fail if we don't have deborphan

if ! which deborphan >/dev/null; then

  echo "deborphan is missing" >&2

  exit 1

fi

OUT=$(deborphan --show-section --guess-all | sort)

CATEGORIES="$(echo "${OUT}" | awk '{print $1}' | 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

    CATFIELD=$(clean_fieldname "${CAT}")

    cat <<EOF

${CATFIELD}.label ${CAT}

${CATFIELD}.type GAUGE

${CATFIELD}.draw AREASTACK

${CATFIELD}.min 0

${CATFIELD}.info The number of orphaned packages in ${CAT}

EOF

  done

else

  for CAT in ${CATEGORIES}; do

    CATFIELD=$(clean_fieldname "${CAT}")

    CATDATA=$(echo "${OUT}" | sed -n 's#'"${CAT}"' \+##p')

    echo "${CATFIELD}.value $(echo "${CATDATA}" | wc -l)"

    echo "${CATFIELD}.extinfo $(echo "${CATDATA}" | tr '\n' ' ')"

  done

fi