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#!/bin/sh
# Combined system status bar module
# Toggle each section on/off (1=on, 0=off)
SHOW_CPU=1
SHOW_CPUBARS=0
SHOW_MEMORY=1
SHOW_DISK=1
# Refresh interval per module (seconds)
# The script itself should be called at the shortest interval (e.g. 5s)
INTERVAL_CPU=5
INTERVAL_CPUBARS=15
INTERVAL_MEMORY=60
INTERVAL_DISK=10800
# Disk mountpoint (only used if SHOW_DISK=1)
DISK_LOCATION=${1:-/}
# Cache directory
CACHE_DIR=/tmp/sb-system
mkdir -p "$CACHE_DIR"
# Clear stale caches on first run (e.g. dwmblocks restart)
LOCK="$CACHE_DIR/.started"
if [ ! -f "$LOCK" ]; then
rm -f "$CACHE_DIR"/cpu "$CACHE_DIR"/cpubars "$CACHE_DIR"/cpubars_prev "$CACHE_DIR"/memory "$CACHE_DIR"/disk*
touch "$LOCK"
fi
# ── Helper: check if cache is stale ────────────────────────
# usage: is_stale <cache_file> <interval_seconds>
is_stale() {
[ ! -f "$1" ] && return 0
last=$(stat -c %Y "$1" 2>/dev/null || echo 0)
now=$(date +%s)
[ $((now - last)) -ge "$2" ]
}
# ── Click handlers ──────────────────────────────────────────
case $BLOCK_BUTTON in
1)
[ "$SHOW_CPU" = 1 ] && notify-send "🖥 CPU hogs" "$(ps axch -o cmd,%cpu | awk '{cmd[$1]+=$2} END {for (i in cmd) print i, cmd[i]}' | sort -nrk2 | head)\\n(100% per core)"
[ "$SHOW_MEMORY" = 1 ] && notify-send "🐏 Memory hogs" "$(ps axch -o cmd,%mem | awk '{cmd[$1]+=$2} END {for (i in cmd) print i, cmd[i]}' | sort -nrk2 | head)"
[ "$SHOW_DISK" = 1 ] && notify-send "💽 Disk space" "$(df -h --output=target,used,size)"
;;
2) setsid -f "$TERMINAL" -e htop ;;
3) notify-send "🖥 System module" "CPU temp, CPU bars, Memory, Disk usage
Left click: show hogs & disk info
Middle click: open htop
Right click: this help" ;;
6) setsid -f "$TERMINAL" -e "$EDITOR" "$0" ;;
esac
# ── Module: CPU temperature ─────────────────────────────────
if [ "$SHOW_CPU" = 1 ]; then
cf="$CACHE_DIR/cpu"
if is_stale "$cf" "$INTERVAL_CPU"; then
sensors | awk '/Tctl:/ {gsub(/[+°C]/,"",$2); printf "🧁%s°", $2}' >"$cf"
fi
fi
# ── Module: CPU bars ────────────────────────────────────────
if [ "$SHOW_CPUBARS" = 1 ]; then
cf="$CACHE_DIR/cpubars"
if is_stale "$cf" "$INTERVAL_CPUBARS"; then
prev_cache="$CACHE_DIR/cpubars_prev"
stats=$(awk '/cpu[0-9]+/ {printf "%d %d %d\n", substr($1,4), ($2 + $3 + $4 + $5), $5 }' /proc/stat)
[ ! -f "$prev_cache" ] && echo "$stats" >"$prev_cache"
old=$(cat "$prev_cache")
echo "$stats" | while read -r row; do
id=${row%% *}
rest=${row#* }
total=${rest%% *}
idle=${rest##* }
case "$(echo "$old" | awk '{if ($1 == id)
printf "%d\n", (1 - (idle - $3) / (total - $2))*100 /12.5}' \
id="$id" total="$total" idle="$idle")" in
"0") printf "▁" ;; "1") printf "▂" ;; "2") printf "▃" ;; "3") printf "▄" ;;
"4") printf "▅" ;; "5") printf "▆" ;; "6") printf "▇" ;; "7" | "8") printf "█" ;;
esac
done >"$cf"
echo "$stats" >"$prev_cache"
fi
fi
# ── Module: Memory + NVMe temp ──────────────────────────────
if [ "$SHOW_MEMORY" = 1 ]; then
cf="$CACHE_DIR/memory"
if is_stale "$cf" "$INTERVAL_MEMORY"; then
width=$(xrandr | grep "\*" | awk '{print $1}' | sed 's/x[0-9]*//g' | head -n1)
nvme_temp=$(sensors 2>/dev/null |
awk '/Composite:/ {gsub(/[+°C]/,"",$2); print $2; exit}')
if [ -n "$width" ] && [ "$width" -eq "$width" ] 2>/dev/null; then
if [ "$width" -lt 1920 ]; then
free --mebi | sed -n '2{p;q}' |
awk -v t="$nvme_temp" '{printf "🌡%s° 🐏%d%%", t, ($3/$2)*100+0.5}' >"$cf"
else
free --mebi | sed -n '2{p;q}' |
awk -v t="$nvme_temp" '{printf "🌡%s° 🐏%dGB/%dGB", t, $3/1000+0.5, $2/1000+0.5}' >"$cf"
fi
fi
fi
fi
# ── Module: Disk usage ──────────────────────────────────────
if [ "$SHOW_DISK" = 1 ] && [ -d "$DISK_LOCATION" ]; then
disk_key=$(printf "%s" "$DISK_LOCATION" | tr '/' '_')
cf="$CACHE_DIR/disk${disk_key}"
if is_stale "$cf" "$INTERVAL_DISK"; then
case "$DISK_LOCATION" in
"/home"*) icon="💾" ;; "/mnt"*) icon="" ;; *) icon="💻" ;;
esac
printf "%s%s" "$icon" "$(df -hP "$DISK_LOCATION" | awk '/[0-9]/ {print $5}')" >"$cf"
fi
fi
# ── Clean up disabled module caches ───────────────────────────
[ "$SHOW_CPU" = 0 ] && rm -f "$CACHE_DIR/cpu"
[ "$SHOW_CPUBARS" = 0 ] && rm -f "$CACHE_DIR/cpubars" "$CACHE_DIR/cpubars_prev"
[ "$SHOW_MEMORY" = 0 ] && rm -f "$CACHE_DIR/memory"
disk_key=$(printf "%s" "$DISK_LOCATION" | tr '/' '_')
[ "$SHOW_DISK" = 0 ] && rm -f "$CACHE_DIR/disk${disk_key}"
# ── Assemble output ─────────────────────────────────────────
out=""
for mod in cpu cpubars memory "disk${disk_key}"; do
f="$CACHE_DIR/$mod"
[ -f "$f" ] && val=$(cat "$f") && [ -n "$val" ] && {
[ -n "$out" ] && out="$out "
out="$out$val"
}
done
printf "%s\n" "$out"
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