iankelling.org Git - distro-setup/blob - epanic-clean

   1 #!/bin/bash
   2 # Copyright (C) 2019 Ian Kelling
   3 # SPDX-License-Identifier: AGPL-3.0-or-later
   4
   5 # The panic log regularly gets some stuff in it we dont want to fix.
   6 # Detect it and wipe it out.
   7
   8 if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
   9
  10 shopt -s inherit_errexit 2>/dev/null ||: # ignore fail in bash < 4.4
  11 set -eE -o pipefail
  12 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  13
  14 [[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
  15
  16 if [[ ! -s /var/log/exim4/paniclog ]]; then
  17   exit 0
  18 fi
  19
  20 wipe=false
  21 while read -r d1 d2; do
  22   tmptime=$(date -d "$d1 $d2" +%s)
  23   # dont consider every matching line, just those in > 60 second intervals
  24   if [[ ! $logtime ]]; then
  25     logtime=$tmptime
  26   elif (( tmptime > logtime + 60 )); then
  27     logtime=$tmptime
  28   else
  29     continue
  30   fi
  31   sec_min=$((logtime - 60))
  32   sec_max=$((logtime + 60))
  33   jmin="$(date -d @$sec_min "+%F %H:%M:%S")"
  34   jmax="$(date -d @$sec_max "+%F %H:%M:%S")"
  35   if journalctl -S "$jmin" -U "$jmax" \
  36       | awk '$6 == "spamd:" && $7 == "restarting"' | grep . &>/dev/null; then
  37     wipe=true
  38     break
  39   fi
  40 done < <(awk '/spam acl condition/ {print $1,$2}' /var/log/exim4/paniclog)
  41 if $wipe; then
  42   regex="^$(date -d @$logtime "+%F %H:%M" )|^${jmin%:*}|^${jmax%:*}"
  43   grep -E "$regex" /var/log/exim4/paniclog >> /var/log/exim4/paniclog-archive
  44   sed -ri "/$regex/d" /var/log/exim4/paniclog
  45 fi