redshiftctl

Tool to manually control monitor color temperature.

Installation

Pre requisites

Make sure to have redshift installed for your Linux system.

Using go

go install github.com/heisantosh/redshiftctl@latest

Usage

redshiftctl (com.github.heisantosh.redshiftctl) 0.1.0

Tool to manually control monitor color temperature using redshft.

USAGE
  redshiftctl COMMAND [ARG]

COMMANDS
  toggle [STATE]       toggle redshift to state on or off, if not provided toggele current state
  load                 load the state of the configuration file
  increase TEMP        increase the color temperature by TEMP
  decrease TEMP        decrease the color temperature by TEMP
  set TEMP             set the color temperature to TEMP
  get STATE            get the value of the state, STATE can be state or temperature
  help                 print this help information

CONFIGURATION
  Configuration file is ~/.config/redshiftctl/config.json

  Keys are
  # current state on, off
  state=on
  # color temperature
  temperature=4500

Examples

Toggle current state

redshiftctl toggle

Toggle state on

redshiftctl toggle on

Set color temperature

redshiftctl set 4500

Decrease color temperature

redshiftctl decrease 500

Get the current color temperature

redshiftctl get temperature

Polybar

This was initially designed for use in a polybar module. The goal was to support mappings for scroll up and scroll down actions to decrease and increase color temperatures respectively as well as toggling redshift on/off.

redshift module

[module/redshift]
type = custom/ipc
# When starting, restore state from last time.
hook-0 = redshiftctl load && ~/.config/polybar/default/bin/redshift/state.sh
# Toggle state on/off.
hook-1 = redshiftctl toggle && ~/.config/polybar/default/bin/redshift/state.sh
# Increase color temperature.
hook-2 = redshiftctl toggle on && redshiftctl increase 500 && ~/.config/polybar/default/bin/redshift/state.sh
# Decrease color temperature.
hook-3 = redshiftctl toggle on && redshiftctl decrease 500 && ~/.config/polybar/default/bin/redshift/state.sh

initial = 1

# Toggle on/off on left click.

click-left = polybar-msg -p %pid% hook redshift 2

# Increase color temperature on scroll up.

scroll-up = polybar-msg -p %pid% hook redshift 3

# Decrease color temperature on scroll down.

scroll-down = polybar-msg -p %pid% hook redshift 4

state.sh for module content

#/bin/bash

state=$(redshiftctl get state)

if [ "${state}" = "on" ]; then
    temperature=$(redshiftctl get temperature)
    echo "%{F#EC7875} %{F-}${temperature}"
else
    echo "%{F#42A5F5} %{F-}"
fi