Timout action trigger on TrackPoint movement

[tukusejssirs]

I have the following in my Sway config:

exec swayidle -w timeout 5 '
  if pgrep -x swaylock; then
    swaymsg "output * dpms off"
    brightnessctl -d "tpacpi::kbd_backlight" g > /dev/shm/kbbl_prev
    brightnessctl -qd "tpacpi::kbd_backlight" s 0; fi
' resume '
  if [ -f /dev/shm/kbbl_prev ]; then
    swaymsg "output * dpms on"
    brightnessctl -qd "tpacpi::kbd_backlight" s "$(< /dev/shm/kbbl_prev)
    rm -f /dev/shm/kbbl_prev"
  fi
'

What it does is when swaylock is running, after timeout of 5 seconds turn off the screen and the keyboard backlight.

Everything behaves as expected, but when swaylock is not running and I let the system be idle for at least 5 seconds, then move my TrackPoint, the keyboard backlight is turned off.

The culprit is the /dev/shm/kbbl_prev file. If it contains 0 (which turns the keyboard backlight off), but also I think there is an issue in swayidle, because it should:

1. never the true branch of if in timout when swaylock is not running;
2. in resume, it should remove /dev/shm/kbbl_prev, but it fails to do so.

---

Anyway, if someone knows of a better way to let the resume part know what was the previous state of the keyboard backlight (in my case, it can be one of 0, 1 or 2), I’d be very, very greatful.

[tukusejssirs]

This issue is related to #42, which might describe the same issue, but a bit different use case.

[tukusejssirs]

It seems like I’ve made a mistake in the code of the issues description. I misquoted $(< /dev/shm/kbbl_prev); rm -f /dev/shm/kbbl_prev instead of only $(< /dev/shm/kbbl_prev).

The following is a working code:

exec swayidle -w timeout 5 '
  if pgrep -x swaylock; then
    swaymsg "output * dpms off"
    brightnessctl -d "tpacpi::kbd_backlight" g > /dev/shm/kbbl_prev
    brightnessctl -qd "tpacpi::kbd_backlight" s 0; fi
' resume '
  if [ -f /dev/shm/kbbl_prev ]; then
    swaymsg "output * dpms on"
    brightnessctl -qd "tpacpi::kbd_backlight" s "$(< /dev/shm/kbbl_prev)"
    rm -f /dev/shm/kbbl_prev
  fi
'