scrub/e2scrub_all_cron.in

   1 #!/bin/bash
   2
   3 #  Copyright (C) 2018 Oracle.  All Rights Reserved.
   4 #
   5 #  Author: Darrick J. Wong <darrick.wong@oracle.com>
   6 #
   7 #  This program is free software; you can redistribute it and/or
   8 #  modify it under the terms of the GNU General Public License
   9 #  as published by the Free Software Foundation; either version 2
  10 #  of the License, or (at your option) any later version.
  11 #
  12 #  This program is distributed in the hope that it would be useful,
  13 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #  GNU General Public License for more details.
  16 #
  17 #  You should have received a copy of the GNU General Public License
  18 #  along with this program; if not, write the Free Software Foundation,
  19 #  Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
  20
  21 # Run e2scrub_all from a cronjob if we don't have systemd and we're not
  22 # running on AC power.
  23
  24 on_ac_power() {
  25         local any_known=no
  26
  27         # try sysfs power class first
  28         if [ -d /sys/class/power_supply ]; then
  29                 for psu in /sys/class/power_supply/*; do
  30                         if [ -r "$psu/type" ]; then
  31                                 type=$(cat "$psu/type")
  32
  33                                 # ignore batteries
  34                                 [ "$type" = "Battery" ] && continue
  35
  36                                 online=$(cat "$psu/online")
  37
  38                                 [ "$online" = 1 ] && return 0
  39                                 [ "$online" = 0 ] && any_known=yes
  40                         fi
  41                 done
  42
  43                 [ "$any_known" = "yes" ] && return 1
  44         fi
  45
  46         # else fall back to AC adapters in /proc
  47         if [ -d /proc/acpi/ac_adapter ]; then
  48                 for ac in /proc/acpi/ac_adapter/*; do
  49                         if [ -r "$ac/state" ]; then
  50                                 grep -q on-line "$ac/state" && return 0
  51                                 grep -q off-line "$ac/state" && any_known=yes
  52                         elif [ -r "$ac/status" ]; then
  53                                 grep -q on-line "$ac/status" && return 0
  54                                 grep -q off-line "$ac/status" && any_known=yes
  55                         fi
  56                 done
  57
  58                 [ "$any_known" = "yes" ] && return 1
  59         fi
  60
  61         # Can't tell, just assume we're on AC.
  62         return 0
  63 }
  64
  65 test -e @root_sbindir@/e2scrub_all || exit 0
  66 test -e /run/systemd/system && exit 0
  67 on_ac_power || exit 0
  68
  69 exec @root_sbindir@/e2scrub_all