#!/bin/bash
+# I, Ian Kelling, follow the GNU license recommendations at
+# https://www.gnu.org/licenses/license-recommendations.en.html. They
+# recommend that small programs, < 300 lines, be licensed under the
+# Apache License 2.0. This file contains or is part of one or more small
+# programs. If a small program grows beyond 300 lines, I plan to switch
+# its license to GPL.
+
+# Copyright 2024 Ian Kelling
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
-set -e; . /usr/local/lib/err; set +e
+set -e; . /usr/local/lib/bash-bear; set +e
# inspired from
# https://github.com/kdave/btrfsmaintenance
-if [[ $INVOCATION_ID ]]; then
+if [[ $PPID == 1 ]]; then
err-cleanup() {
exim -odf -i root <<EOF
From: root@$(hostname -f)
}
check-idle() {
- type -p xprintidle &>/dev/null || return 0
+ type -p xscreensaver-command &>/dev/null || return 0
+ export XAUTHORITY=/home/iank/.Xauthority
export DISPLAY=:0
- # a hours, a movie could run that long.
- idle_limit=$((1000 * 60 * 60 * 2))
- idle_time=$idle_limit
- while read -r user; do
- new_idle_time=$(sudo -u $user xprintidle 2>/dev/null) ||:
- if [[ $new_idle_time && $new_idle_time -lt $idle_time ]]; then
- idle_time=$new_idle_time
+ locked=false
+ if lock_info=$(xscreensaver-command -time 2>/dev/null); then
+ if [[ $lock_info != *non-blanked* ]]; then
+ locked=true
fi
- done < <(users | tr " " "\n" | sort -u)
- if (( idle_time < idle_limit )); then
- idle=false
- else
- idle=true
fi
}
main() {
- idle=true
if ! $force; then
check-idle
if ! $check; then
max_min=300
# When the cron kicks in, we may not be idle (physically sleeping) yet, so
# wait.
- while ! $idle && (( min < max_min )); do
+ while ! $locked && (( min < max_min )); do
min=$(( min + 1 ))
sleep 60
check-idle
#### end look for diff in stats, eg: increasing error count ####
if $check; then
- if ! $idle; then
+ if ! $locked; then
if $dryrun; then
echo "$0: not idle. if this wasnt a dry run, btrfs scrub cancel $mnt"
else