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Improved scheduler to avoid duplicate tasks

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Sayantan Santra 2022-07-24 21:03:47 -05:00
parent fd1d98f80f
commit ca6d60708c
1 changed files with 28 additions and 14 deletions
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42
brightness-by-daylight.sh
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@ -16,7 +16,7 @@
# Just run this script one manually to set it up to run perpetually (hopefully) using 'at'
# (Some distros don't come with 'at' preinstalled, so you might need to install 'at' and enable the 'atd' service.)
# It might also be a good idea to add this script's location to your DE's autostart list, or to '.profile' so that it launches on system login
# It might also be a good idea to add '<location-of-this-script> scheduler' to your DE's autostart list, or to '.profile' so that it launches on system login
# (Sometimes I forget to turn on the monitor when I start my PC, so this is better than having a crontab)
confdir="/home/sintan/.config"
@ -28,22 +28,36 @@ else
exit
fi
# Check if we want to access the scheduler. If yes, create a schedule using `at`,
# otherwise adjust brightness immediately
sun_status=$(sunwait poll $latitude $longitude)
if [ $sun_status == "DAY" ]; then
target=$high
else
target=$low
fi
ddcutil setvcp 10 $target
echo "Monitor brightness set to $target%, since it's $(echo $sun_status | tr '[:upper:]' '[:lower:]') time"
# Check if we want to access the scheduler. If yes, create a schedule using `at`
if [ "$1" == "scheduler" ]; then
if [ $(sunwait poll $latitude $longitude) == "DAY" ]; then
# +1 minute is so that the next schedule is set up properly (or sunwait reports day/night in a misleading way)
at -m $(sunwait report 35.221050N 97.445938W | grep "Daylight:" | awk '{print $6}') +1 minute <<< "ddcutil setvcp 10 $low && $scriptdir/brightness-by-daylight.sh scheduler"
if [ $sun_status == "DAY" ]; then
time_next=$(sunwait report 35.221050N 97.445938W | grep "Daylight:" | awk '{print $6}')
else
at -m $(sunwait report 35.221050N 97.445938W | grep "Daylight:" | awk '{print $4}') +1 minute <<< "ddcutil setvcp 10 $high && $scriptdir/brightness-by-daylight.sh scheduler"
time_next=$(sunwait report 35.221050N 97.445938W | grep "Daylight:" | awk '{print $4}')
fi
else
if [ $(sunwait poll $latitude $longitude) == "DAY" ]; then
ddcutil setvcp 10 $high
echo "Monitor brightness set to $high%, since it's day time."
else
ddcutil setvcp 10 $low
echo "Monitor brightness set to $low%, since it's night time."
task_list=$(atq | grep $time_next | awk '{print $1}')
for item in $task_list
do
if ! [ $(at -c $item | sed 'x;$!d' | awk '{print $4}') == "$scriptdir/brightness-by-daylight.sh" ]; then
# we wait a minute so that the next schedule is set up properly (or sunwait reports day/night in a misleading way)
at -m $time_next <<< "sleep 60 && $scriptdir/brightness-by-daylight.sh scheduler"
fi
done
if [ -z "$task_list" ]; then # in case there's no at entry
at -m $time_next <<< "sleep 60 && $scriptdir/brightness-by-daylight.sh scheduler"
fi
fi