Automatically restart bpytop when settings change (to toggle dark/light theme)

[Hubro]

This wrapper script immediately restarts bpytop when the config file changes:

#!/bin/bash
#
# Wrapper for bpytop that restarts when the config file changes on disk
#

CONFIG_FILE="$HOME/.config/bpytop/bpytop.conf"

trap "kill $BPYTOP_PID &>/dev/null" EXIT

while true; do
    bpytop <&0 &
    BPYTOP_PID=$!

    inotifywait -e modify "$CONFIG_FILE"

    kill "$BPYTOP_PID"
done

(This requires the inotifywait command, part of the community/inotify-tools package on Arch)

This let me integrate bpytop in my day/night theme toggling script:

bpytop-theme-toggle-demo.mp4

Granted, it's a little jumpy, and all the graphs are reset, but at least it works!

If I was more knowledgeable with the shell, I could probably freeze STDOUT for a second while bpytop restarts to avoid the flashing text. If anybody has any tips on that I would appreciate it.