1 #!/bin/bash 2 3 # Copyright (C) 2018 Oracle. All Rights Reserved. 4 # 5 # Author: Darrick J. Wong <darrick.wong (at] 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 /run/systemd/system && exit 0 66 on_ac_power || exit 0 67 68 exec @root_sbindir@/e2scrub_all 69
