mirror of
https://github.com/vale981/spectrwm
synced 2025-03-04 09:21:39 -05:00
5bc8f0105b
The current loop is a bit awkward for a number of reasons:
* iostat exits after a number of iterations, so to keep the script
going we need to run it in a nested loop;
* we also run iostat concurrently using the |& syntax, which in
addition to being non-portable requires us to set up a cleanup
path so that we don't leave stray processes around when spectrwm
is restarted;
* due to the fact that iostat prints its headers again every 20
records, we have to keep careful track of the number of
iterations - something which has proven to be error-prone.
Once we do away with the idea of iostat driving the update loop, all
of these issues disappear and the code becomes much simpler.
We still cache battery data for 11 seconds, which is the same amount
as before; tweaking it further, if desired, will be trivial now.
This patch is better viewed with 'git show -w'.
99 lines
1.9 KiB
Bash
99 lines
1.9 KiB
Bash
#!/bin/sh
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# Example Bar Action Script for OpenBSD-current.
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#
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print_date() {
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# The date is printed to the status bar by default.
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# To print the date through this script, set clock_enabled to 0
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# in spectrwm.conf. Uncomment "print_date" below.
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FORMAT="%a %b %d %R %Z %Y"
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DATE=`date "+${FORMAT}"`
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echo -n "${DATE} "
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}
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print_mem() {
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MEM=`/usr/bin/top | grep Free: | cut -d " " -f6`
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echo -n "Free mem: $MEM "
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}
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_print_cpu() {
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printf "CPU: %3d%% User %3d%% Nice %3d%% Sys %3d%% Spin %3d%% Int %3d%% Idle " $1 $2 $3 $4 $5 $6
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}
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print_cpu() {
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OUT=""
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# iostat prints each column justified to 3 chars, so if one counter
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# is 100, it jams up agains the preceeding one. sort this out.
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while [ "${1}x" != "x" ]; do
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if [ ${1} -gt 99 ]; then
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OUT="$OUT ${1%100} 100"
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else
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OUT="$OUT ${1}"
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fi
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shift;
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done
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_print_cpu $OUT
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}
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print_cpuspeed() {
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CPU_SPEED=`/sbin/sysctl hw.cpuspeed | cut -d "=" -f2`
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printf "CPU speed: %4d MHz " $CPU_SPEED
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}
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print_bat() {
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BAT_STATUS=$1
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BAT_LEVEL=$2
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AC_STATUS=$3
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if [ $AC_STATUS -ne 255 -o $BAT_STATUS -lt 4 ]; then
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if [ $AC_STATUS -eq 0 ]; then
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echo -n "on battery (${BAT_LEVEL}%)"
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else
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case $AC_STATUS in
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1)
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AC_STRING="on AC: "
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;;
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2)
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AC_STRING="on backup AC: "
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;;
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*)
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AC_STRING=""
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;;
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esac;
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case $BAT_STATUS in
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4)
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BAT_STRING="(no battery)"
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;;
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[0-3])
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BAT_STRING="(battery ${BAT_LEVEL}%)"
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;;
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*)
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BAT_STRING="(battery unknown)"
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;;
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esac;
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FULL="${AC_STRING}${BAT_STRING}"
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if [ "$FULL" != "" ]; then
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echo -n "$FULL"
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fi
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fi
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fi
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}
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# cache the output of apm(8), no need to call that every second.
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APM_DATA=""
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I=0
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while :; do
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IOSTAT_DATA=`/usr/sbin/iostat -C | grep '[0-9]$'`
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if [ $I -eq 0 ]; then
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APM_DATA=`/usr/sbin/apm -alb`
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fi
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# print_date
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print_mem
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print_cpu $IOSTAT_DATA
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print_cpuspeed
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print_bat $APM_DATA
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echo ""
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I=$(( ( ${I} + 1 ) % 11 ))
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sleep 1
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done
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