Module Eth +Mask IP

Transforms the [Module/Eth] into a module which can be used to show and hide your local machine's IP (if you're connected by ethernet)

Modules/Module Eth +Mask IP/mask_ip.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+# Recommended to store this file in the $HOME/.config/polybar/polybar-scripts/ folder
+# you can use... mkdir $HOME/.config/polybar && mkdir $HOME/.config/polybar/polybar-scripts/
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+# Temp File to save a state, Polybar makes a variable loop impossible
+# unless we pull the value from outside of our script in another file.
+F=/tmp/polybar_mask_ip_toggle
+# Our print values!
+IP="$(hostname -I | awk '{print $1}')"
+MASK="████████████"
+# detect real interface name
+INTERFACENAME=$(ip route get 1.1.1.1 2>/dev/null \
+     | awk '/dev/ { for(i=1;i<NF;i++) if($i=="dev") print $(i+1)}' \
+     | head -n1)
+[[ -z "$IF" ]] && IF="eth0"
+
+# Initialize state if missing
+if [[ ! -f $F ]]; then
+  echo 1 > "$F"
+fi
+
+# If called to toggle, flip 1↔ 2, write and exit
+if [[ $1 == "toggle" ]]; then
+  state=$(<"$F")
+  # compute next: 1→ 2, 2→ 1
+  next=$(( state % 2 + 1 ))
+  echo $next > "$F"
+  exit 0
+fi
+
+# Otherwise, just read the state and print
+state=$(<"$F")
+if (( state == 1 )); then
+  echo "%{F#F0C674}$INTERFACENAME%{F-} $MASK"
+else
+  echo "%{F#F0C674}$INTERFACENAME%{F-} $IP"
+fi