A Python script that can be used as an in-place substitution for spantaleev/redshift-scheduler.
This program should be used with 'redshift' (make sure it is installed).
This program works similar to 'redshift-scheduler' and supports config-file of the same format. But it is written in Python, so it doesn't need to be compiled and works out-of-the-box on every system that supports Python.
This script allows you to define rules for redshift according to system time. You can define some fixed rules to instantly switch the screen temperature and also some smooth rules that will gradually increase or decrease the temperature.
Following rules will define that at 9 am the temperature will gradually increase from 6200K to 6500K and stay fixed until 5 pm.
08:00 -> 09:00 | 6200K
09:00 -> 09:30 | 6500K
09:30 -- 17:00 | 6500K
Actually the last rule here is redundant, the same result will be achieved without the third line.
The config-file must be placed to ~/.config/redshift-scheduler/rules.conf. This is done automatically by running install.sh
The default config may be used as an example. You can find it in this repository: rules.conf
Run the install script:
./install.sh
Alternatively you can manually install the script. Copy it to /usr/bin directory and add a cron task to automatically run this script every 1 minute or at any other frequency if you wish.
As this script modifies display settings you have to attach it to all the displays in the system. Or to a single particular display if you wish. Expample of a cron task for the first display:
*/1 * * * * DISPLAY=:0 redshift-smooth
Tested with Python 3.12. Should also work well with other versions.
This software is distributed under the GPL-3.0 license.