waybar: add waycat/cpucat custom module

1 files changed, 72 insertions, 0 deletions

diff --git a/.config/waybar/scripts/catloop.sh b/.config/waybar/scripts/catloop.sh
new file mode 100755
index 0000000..1de3bb8
--- /dev/null
+++ b/.config/waybar/scripts/catloop.sh
@@ -0,0 +1,72 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+CPU_USAGE=0.0
+SLEEP_AFTER=4
+
+AWAKE_FRAMES=($(eval echo {A..E}))
+SLEEP_FRAMES=($(eval echo {G..N}))
+
+COUNT=0
+
+read_cpu() {
+  awk '/^cpu /{
+    user=$2; nice=$3; sys=$4; idle=$5;
+    active = user + nice + sys;
+    total = active + idle;
+    printf "%d %d\n", active, total;
+    exit
+  }' /proc/stat
+}
+
+read prev_active prev_total < <(read_cpu)
+
+while true; do
+
+  read active total < <(read_cpu)
+
+  delta_active=$((active - prev_active))
+  delta_total=$((total - prev_total))
+
+  if [ "$delta_total" -le 0 ] || [ "$delta_active" -lt 0 ]; then
+    utilization="0.0000"
+  else
+    utilization=$(awk -v a="$delta_active" -v t="$delta_total" 'BEGIN { printf "%.4f", (a / t) }')
+  fi
+
+  CPU_USAGE=$utilization	
+
+	SPEED=$(awk -v u="$CPU_USAGE" 'BEGIN { printf "%.2f", 1 / (4 + (u * 100)) }')
+	# clip minimum speed
+	if (( $(echo "$SPEED < 0.03" | bc -l) )); then
+		SPEED=0.03
+	fi
+
+	### MAKE THE CAT SLEEP IF CPU USAGE IS LOW after SLEEP_AFTER ###
+	if (( $(echo "$CPU_USAGE < 0.02" | bc -l) )); then
+		COUNT=$((COUNT + 1))
+	else
+		COUNT=0
+	fi
+
+	### CAT IS SLEEPING ###
+	if [ $COUNT -ge $SLEEP_AFTER ]; then
+		for s in "${SLEEP_FRAMES[@]}";do
+			echo $s
+			sleep $SPEED 
+		done
+
+	### CAT IS AWAKE ###
+	else
+		for i in "${AWAKE_FRAMES[@]}";do
+			echo $i
+			sleep $SPEED 
+		done
+
+	fi
+
+  prev_active=$active
+  prev_total=$total
+done
+
+# vim: set ts=2 sw=2