1 files changed, 66 insertions, 33 deletions
diff --git a/.config/sway/status.sh b/.config/sway/status.sh
index 2b8d43c..ef52efd 100755
--- a/.config/sway/status.sh
+++ b/.config/sway/status.sh
@@ -1,39 +1,72 @@
-# The Sway configuration file in ~/.config/sway/config calls this script.
-# You should see changes to the status bar after saving this script.
-# If not, do "killall swaybar" and $mod+Shift+c to reload the configuration.
+#!/bin/sh
+
+CACHE="$HOME/.cache/sway-status"
+mkdir -p "$CACHE"
+
+BAT_CACHE="$CACHE/battery"
+NET_CACHE="$CACHE/network"
+SYS_CACHE="$CACHE/system"
+
+now=$(date +%s)
+
+############################################
+# CLOCK (unchanged)
+############################################
 
-# The abbreviated weekday (e.g., "Sat"), followed by the ISO-formatted date
-# like 2018-10-06 and the time (e.g., 14:01). Check `man date` on how to format
-# time and date.
 date_formatted=$(date "+%a %F %I:%M")
 date_prague=$(TZ=Europe/Prague date "+%a %F %I:%M")
 date_london=$(TZ=Europe/London date "+%a %F %I:%M")
 
-# "upower --enumerate | grep 'BAT'" gets the battery name (e.g.,
-# "/org/freedesktop/UPower/devices/battery_BAT0") from all power devices.
-# "upower --show-info" prints battery information from which we get
-# the state (such as "charging" or "fully-charged") and the battery's
-# charge percentage. With awk, we cut away the column containing
-# identifiers. i3 and sway convert the newline between battery state and
-# the charge percentage automatically to a space, producing a result like
-# "charging 59%" or "fully-charged 100%".
-battery_info=$(upower --show-info $(upower --enumerate |\
-grep 'BAT') |\
-egrep "state|percentage" |\
-awk '{print $2}')
-
-#  Network
-ip_addr=$(ip route get 1.1.1.1 | head -1 | cut -d' ' -f7)
-network=$(ip route get 1.1.1.1 | grep -Po '(?<=dev\s)\w+' | cut -f1 -d ' ')
-# interface_easyname grabs the "old" interface name before systemd renamed it
-#interface_easyname=$(dmesg | grep $network | grep renamed | awk 'NF>1{print $NF}')
-#ping=$(ping -c 1 www.google.es | tail -1| awk '{print $4}' | cut -d '/' -f 2 | cut -d '.' -f 1)
-
-# CPU temp
-cpu_temp=$(sensors | grep -oP 'CPU.*?\+\K[0-9.]+')
-
-# RAM usage
-ram_usage=$(free -h | awk '/^Mem:/ {print "RAM Usage: " $3 " / " $2}')
-
-# Additional emojis and characters for the status bar:
+############################################
+# BATTERY (cache 30 sec)
+############################################
+
+if [ ! -f "$BAT_CACHE.ts" ] || [ $((now - $(cat "$BAT_CACHE.ts" 2>/dev/null))) -gt 30 ]; then
+	battery_info=$(upower --show-info \
+		$(upower --enumerate | grep BAT) |
+		egrep "state|percentage" |
+		awk '{print $2}' | tr '\n' ' ')
+
+	echo "$battery_info" > "$BAT_CACHE"
+	echo "$now" > "$BAT_CACHE.ts"
+fi
+
+battery_info=$(cat "$BAT_CACHE")
+
+############################################
+# NETWORK (cache 15 sec)
+############################################
+
+if [ ! -f "$NET_CACHE.ts" ] || [ $((now - $(cat "$NET_CACHE.ts" 2>/dev/null))) -gt 15 ]; then
+
+	route=$(ip route get 1.1.1.1 2>/dev/null)
+
+	ip_addr=$(printf "%s" "$route" | awk '{print $7; exit}')
+	network=$(printf "%s" "$route" | grep -Po '(?<=dev\s)\w+' | cut -f1 -d ' ')
+
+	echo "$network $ip_addr" > "$NET_CACHE"
+	echo "$now" > "$NET_CACHE.ts"
+fi
+
+read network ip_addr < "$NET_CACHE"
+
+############################################
+# CPU TEMP + RAM (cache 10 sec)
+############################################
+
+if [ ! -f "$SYS_CACHE.ts" ] || [ $((now - $(cat "$SYS_CACHE.ts" 2>/dev/null))) -gt 10 ]; then
+
+	cpu_temp=$(sensors | grep -oP 'CPU.*?\+\K[0-9.]+' | head -1)
+	ram_usage=$(free -h | awk '/^Mem:/ {print "RAM Usage: " $3 " / " $2}')
+
+	echo "$cpu_temp|$ram_usage" > "$SYS_CACHE"
+	echo "$now" > "$SYS_CACHE.ts"
+fi
+
+IFS="|" read cpu_temp ram_usage < "$SYS_CACHE"
+
+############################################
+# OUTPUT
+############################################
+
 echo $network $ip_addr \| CPU: $cpu_temp \| $ram_usage \| $battery_info \| LON: $date_london \| PRG: $date_prague \| $date_formatted