iankelling.org Git - distro-setup/blob - system-status

   1 #!/bin/bash
   2 # Copyright (C) 2019 Ian Kelling
   3 # SPDX-License-Identifier: AGPL-3.0-or-later
   4
   5 # usage: runs 4 times every 15 seconds unless any args are passed, or we
   6 # are on battery power, then just runs once.
   7
   8 if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
   9
  10 source /a/bin/errhandle/err
  11 status_file=/dev/shm/iank-status
  12
  13 shopt -s nullglob
  14 shopt -s dotglob
  15
  16 verbose=false
  17 if [[ $1 ]]; then
  18   verbose=true
  19 fi
  20 v() {
  21   if $verbose; then
  22     printf "%s\n" "$*"
  23   fi
  24 }
  25 lo() { /usr/local/bin/log-once "$@"; }
  26
  27 write-status() {
  28   chars=("${first_chars[@]}")
  29
  30   glob=(/nocow/btrfs-stale/*)
  31   if [[ -e ${glob[0]} ]]; then
  32     chars+=("STALE!")
  33   fi
  34   glob=(/m/md/bounces/new/*)
  35   if [[ -e ${glob[0]} ]]; then
  36     chars+=("BOUNCE!")
  37     bouncemsg="message in /m/md/bounces/new"
  38   fi
  39   lo -1 bounce $bouncemsg
  40   glob=(/m/md/alerts/new/* /m/md/alerts/cur/*)
  41   if [[ -e ${glob[0]} ]]; then
  42     chars+=("ALERT!")
  43   fi
  44   if [[ -e /nocow/user/mailtest-failure ]]; then
  45     chars+=("MAILPING!")
  46   fi
  47
  48   qlen=$(/usr/sbin/exiqgrep -o 60 -c -b | awk '{print $1}')
  49   if ((qlen)); then
  50     chars+=("q $qlen")
  51   fi
  52
  53   cd /b/ds
  54   if ! make -q ~/.local/distro-begin || [[ $(<~/.local/distro-begin) != 0 ]]; then
  55     chars+=("DISTRO-BEGIN!")
  56   fi
  57
  58   if ! make -q ~/.local/distro-end || [[ $(<~/.local/distro-end) != 0 ]]; then
  59     chars+=("DISTRO-END!")
  60   fi
  61
  62   f=~/.local/conflink
  63   for _ in 1; do
  64     if [[ -e $f ]]; then
  65       now=$(date +%s)
  66       fsec=$(stat -c%Y $f)
  67       fmin=$(( (fsec - now ) / 60 + 1 ))
  68       fminplus=$(( fmin + 60*24 ))
  69       # Filesystem files get copied, so find any newer than the last run.
  70       # The rest are hueristics:
  71       # Given the last time we added a file in git, is that newer than the last conflink run.
  72       # Given new files not added to git, were they modified more recently than the last conflink? but,
  73       # push their modification time back by a day so we can develop them before needing to add them to git.
  74
  75       all_dirs=({/a/bin/ds,/p/c}{/filesystem,/machine_specific/$HOSTNAME/filesystem})
  76       # This part is copied from conflink
  77       for x in /p/c/machine_specific/*.hosts /a/bin/ds/machine_specific/*.hosts; do
  78         if grep -qxF $HOSTNAME $x; then all_dirs+=( ${x%.hosts} ); fi
  79       done
  80
  81       if (( $(date -d "$(git log --diff-filter=ACR --format=%aD -1)" +%s) > fsec )) || \
  82            [[ $(find ${all_dirs[@]} -mmin $fmin -type f -print -quit 2>/dev/null) ]]; then
  83         v conflink newer git or newer filesystem files
  84         chars+=("CONFLINK!")
  85         break
  86       fi
  87
  88       for d in /a/bin/distro-setup /p/c; do
  89         cd $d
  90         untracked=$(git ls-files -o --exclude-standard)
  91         if [[ $untracked && $(find $untracked -mmin $fminplus -type f -print -quit) ]]; then
  92           v conflink: untracked in $d
  93           chars+=("CONFLINK!")
  94           break
  95         fi
  96       done
  97
  98     fi
  99     if [[ ! -e $f || $(<$f) != 0 ]]; then
 100       v conflink: last run not found or failed
 101       chars+=("CONFLINK!")
 102       break
 103     fi
 104   done
 105
 106
 107   ## Clean the paniclog, but only up to 4 times per day, or else we
 108   ## should investigate.
 109   loglog=/tmp/panicloglog-$(date --rfc-3339=date)
 110   if [[ -s $loglog ]]; then
 111     spamcount=$(stat -c%s $loglog)
 112   else
 113     spamcount=0
 114   fi
 115   if (( spamcount <= 4 )); then
 116     if grep -q 'spam acl condition' /var/log/exim4/paniclog &>/dev/null; then
 117       printf . >>$loglog
 118     fi
 119     /a/bin/distro-setup/epanic-clean
 120   fi
 121
 122   if [[ -s /var/log/exim4/paniclog ]]; then
 123     chars+=("PANIC!")
 124     tail -n 20 /var/log/exim4/paniclog | lo -1 paniclog
 125   else
 126     lo -1 paniclog
 127   fi
 128
 129   source /a/bin/bash_unpublished/source-state
 130   if [[ $MAIL_HOST == "$HOSTNAME" ]]; then
 131     bbkmsg=
 132     if [[ $(systemctl is-active btrbk.timer) != active ]]; then
 133       chars+=("BTRBK.TIMER!")
 134       bbkmsg="btrbk.timer not enabled"
 135     fi
 136     lo -60 btrbk.timer $bbkmsg
 137
 138     ## check if last snapshot was within an hour
 139     vol=o
 140     # this section generally copied from btrbk scripts, but
 141     # this part modified to speed things up by about half a second.
 142     # I'm not sure if its quite as reliable, but it looks pretty safe.
 143     # Profiled it using time and also adding to the top of the file:
 144     # set -x
 145     # PS4='+ $(date "+%2N") '
 146     snaps=($(ls -1avdr /mnt/root/btrbk/$vol.20*|head -n1))
 147     now=$(date +%s)
 148     maxtime=0
 149     for s in ${snaps[@]}; do
 150       file=${s##*/}
 151       t=$(date -d $(sed -r  's/(.{4})(..)(.{5})(..)(.*)/\1-\2-\3:\4:\5/' <<<${file#$vol.}) +%s)
 152       if (( t > maxtime )); then
 153         maxtime=$t
 154       fi
 155     done
 156     if (( maxtime < now - 60*60 )); then
 157       chars+=("OLD-SNAPSHOT!")
 158       snapshotmsg="/o snapshot older than 1 hour"
 159     fi
 160     lo -1 old-snapshot $snapshotmsg
 161   fi
 162
 163   cat /a/bin/bash_unpublished/source-state >$status_file
 164
 165   if [[ ${chars[*]} ]]; then
 166     echo "ps_char=\"${chars[*]} \$ps_char\"" >>$status_file
 167   fi
 168
 169 }
 170 # use this if we want to do something just once per minute
 171 first_chars=()
 172
 173 power=true
 174 if [[ -e /sys/class/power_supply/AC/online && $(</sys/class/power_supply/AC/online) == 0 ]]; then
 175   power=false
 176 fi
 177
 178 write-status
 179 if [[ $1 ]]; then
 180   cat $status_file
 181   exit 0
 182 fi
 183
 184 if ! $power; then
 185   exit 0
 186 fi
 187 for ((i=1; i<=3; i++)); do
 188   sleep 15
 189   write-status
 190 done