Add temperature to waybar in FreeBSD.

ansible/roles/sway/files/waybar_scripts/waybar_temperature_freebsd.bash

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+#
+# Read temperature status in FreeBSD
+set -euo pipefail
+IFS=$'\n\t'
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+SLEEP_INTERVAL=${SLEEP_INTERVAL:-30}
+
+while true; do
+    current_cpu_temps=$(sysctl 'dev.cpu' | grep -E 'dev\.cpu\.[0-9]+\.temperature')
+    sum_temperature=0
+    num_temperature=0
+    max_temperature=0
+    while read temp; do
+        numeric_temp=$(echo "$temp" | cut -d ':' -f 2 | grep -oE '[0-9]+(\.[0-9]+)?')
+        sum_temperature=$(bc -s <<<"$sum_temperature + $numeric_temp")
+        num_temperature=$((num_temperature + 1))
+        max_temperature=$(bc <<EOF
+define max(a,b){
+  if(a>b)
+  {
+   return(a)
+  }else{
+   return(b)
+  }
+}
+max($max_temperature,$numeric_temp)
+EOF
+)
+    done<<<"$current_cpu_temps"
+    avg_temperature=$(bc -s <<<"$sum_temperature / $num_temperature")
+    tooltip="<tt>$current_cpu_temps</tt>"
+    class=""
+    icon="🌡"
+
+    jq --unbuffered --compact-output <<EOF
+{
+"text":"${max_temperature}℃ ${icon}",
+"tooltip":"${tooltip//$'\n'/\\n}",
+"percentage":50,
+"class":"${class}"
+}
+EOF
+    sleep $SLEEP_INTERVAL
+done