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-rw-r--r--scrub/e2scrub_all_cron.in69
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diff --git a/scrub/e2scrub_all_cron.in b/scrub/e2scrub_all_cron.in
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+#!/bin/bash
+
+# Copyright (C) 2018 Oracle. All Rights Reserved.
+#
+# Author: Darrick J. Wong <darrick.wong@oracle.com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+
+# Run e2scrub_all from a cronjob if we don't have systemd and we're not
+# running on AC power.
+
+on_ac_power() {
+ local any_known=no
+
+ # try sysfs power class first
+ if [ -d /sys/class/power_supply ]; then
+ for psu in /sys/class/power_supply/*; do
+ if [ -r "$psu/type" ]; then
+ type=$(cat "$psu/type")
+
+ # ignore batteries
+ [ "$type" = "Battery" ] && continue
+
+ online=$(cat "$psu/online")
+
+ [ "$online" = 1 ] && return 0
+ [ "$online" = 0 ] && any_known=yes
+ fi
+ done
+
+ [ "$any_known" = "yes" ] && return 1
+ fi
+
+ # else fall back to AC adapters in /proc
+ if [ -d /proc/acpi/ac_adapter ]; then
+ for ac in /proc/acpi/ac_adapter/*; do
+ if [ -r "$ac/state" ]; then
+ grep -q on-line "$ac/state" && return 0
+ grep -q off-line "$ac/state" && any_known=yes
+ elif [ -r "$ac/status" ]; then
+ grep -q on-line "$ac/status" && return 0
+ grep -q off-line "$ac/status" && any_known=yes
+ fi
+ done
+
+ [ "$any_known" = "yes" ] && return 1
+ fi
+
+ # Can't tell, just assume we're on AC.
+ return 0
+}
+
+test -e @root_sbindir@/e2scrub_all || exit 0
+test -e /run/systemd/system && exit 0
+on_ac_power || exit 0
+
+exec @root_sbindir@/e2scrub_all