Kitty theme switching based on the time of day

Readme.md

Kitty theme switching based on the time of day

I realy like the PHPStorm extension ChronoMorph which switches between light and dark themes depending on the time of day.

I wanted that for my terminal too. And since the kitty terminal can be remote controlled, we can implement this with two simple scripts.

One script fetches the sunrise and sunset times. It can run once a day.

The other one checks the current time against the sunrise and sunset times and determines if a light or dark mode should be used. It can run every five minutes or however often you like.

This requires kitty to have the remote control feature enabled.

Enjoy!

kittyMode.sh

#!/bin/bash

location=NLXX5790

IFS=':'
read -r sunrise < $HOME/tmp/$location.sunrise
sunrise=${sunrise/':'/}
read -r sunset < $HOME/tmp/$location.sunset
sunset=${sunset/':'/}

now=`date +%H%M`

mode=dark
if [ $now -ge $sunrise ] && [ $now -lt $sunset ]; then
	mode=light
fi

if [ $mode == "light" ]; then
	kitty @ --to unix:@kitty-`pidof kitty` set-colors -a background=\#fdf6e3 foreground=\#586e75
	kitty @ --to unix:@kitty-`pidof kitty` set-background-image ~/Pictures/Backgrounds/termBg.day.png
else
	kitty @ --to unix:@kitty-`pidof kitty` set-colors -a background=\#000000 foreground=\#c0c0c0
	kitty @ --to unix:@kitty-`pidof kitty` set-background-image ~/Pictures/Backgrounds/termBg.png
fi

sunrise-sunset.sh

#!/bin/bash

# First obtain a location code from: https://weather.codes/search/

# Insert your location. For example LOXX0001 is a location code for Bratislava, Slovakia
location="NLXX5790"
tmpfile=$HOME/tmp/$location.out
sunriseCache=$HOME/tmp/$location.sunrise
sunsetCache=$HOME/tmp/$location.sunset

# Obtain sunrise and sunset raw data from weather.com
wget -q "https://weather.com/weather/today/l/$location" -O "$tmpfile"

SUNR=$(grep SunriseSunset "$tmpfile" | grep -oE '((1[0-2]|0?[1-9]):([0-5][0-9]) ?([AaPp][Mm]))' | head -1)
SUNS=$(grep SunriseSunset "$tmpfile" | grep -oE '((1[0-2]|0?[1-9]):([0-5][0-9]) ?([AaPp][Mm]))' | tail -1)

sunrise=$(date --date="$SUNR" +%R)
sunset=$(date --date="$SUNS" +%R)

# Use $sunrise and $sunset variables to fit your needs. Example:
echo "$sunrise" > $sunriseCache
echo "$sunset" > $sunsetCache