dotfiles/scripts/batmon.lisp

45 lines
1.7 KiB
Common Lisp
Executable file

#!/usr/bin/env -S sbcl --script
(require "uiop")
(load "/home/chris/.sbclrc")
(ql:quickload :serapeum)
(defun get-value (file)
"Read a file and get it's value as a string"
(serapeum:trim-whitespace (uiop:read-file-string file)))
(defun close-eww ()
(run-program "eww" '("close" "battery") :search "/run/current-system/sw/bin/"))
(defun open-eww ()
(run-program "eww" '("open" "battery") :search "/run/current-system/sw/bin/"))
(defun clear-file (file)
(with-open-file (out file :direction :output :if-exists :supersede)
(write-sequence " " out))
(format t "~&Clearing killed"))
(defun main ()
(loop do (let ((capacity (parse-integer
(get-value "/sys/class/power_supply/BAT1/capacity")
:junk-allowed t))
(status (get-value "/sys/class/power_supply/BAT1/status")))
(format t "~&Charge: ~a, Status: ~a" capacity status)
(if (string= "Charging" status)
(progn
(format t "~&Charging, closing EWW")
(close-eww))
(if (<= capacity 30)
(let ((killed (get-value "/tmp/ewwbattery")))
(if (string= "killed" killed)
(progn
(format t "~&EWW has been killed, waiting 3 minutes")
(clear-file #p"/tmp/ewwbattery")
(sleep 350)))
(format t "~&Opening EWW")
(open-eww))
(progn (format t "~&Charged more than 30%, Closing EWW")
(clear-file #p"/tmp/ewwbattery")
(close-eww))))
(sleep 10))))
(main)