From 3c905d717a331b9be6d7036624378d0617234a82 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Wed, 8 Jun 2022 22:01:23 +0200
Subject: Update i3blocks

---
 config/i3blocks/scripts/iface | 61 +++++++++++++++++++++++++++++--------------
 1 file changed, 42 insertions(+), 19 deletions(-)

(limited to 'config/i3blocks/scripts/iface')

diff --git a/config/i3blocks/scripts/iface b/config/i3blocks/scripts/iface
index abac9c0..ffa576e 100755
--- a/config/i3blocks/scripts/iface
+++ b/config/i3blocks/scripts/iface
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
 # Copyright (C) 2014 Alexander Keller <github@nycroth.com>
 
@@ -17,38 +17,61 @@
 
 #------------------------------------------------------------------------
 
-# Locate current default interface, but use only wlp (wifi) or enp (ethernet)
-# TODO probably also add connection over phone
-IF=$(ip route | awk '/^default .* (wlp|wlo|enp)/ { print $5 ; exit }')
+# Use the provided interface, otherwise the device used for the default route.
+IF="${IFACE:-$BLOCK_INSTANCE}"
+for version in 4 6; do
+	IF="${IF:-$(ip -$version route  | sed -n 's/^default.*dev \([^ ]*\).*/\1/p')}"
+done
+
+# Exit if there is no default route
+[[ -z "$IF" ]] && exit
 
 #------------------------------------------------------------------------
 
 # As per #36 -- It is transparent: e.g. if the machine has no battery or wireless
 # connection (think desktop), the corresponding block should not be displayed.
 [[ ! -d /sys/class/net/${IF} ]] && exit
-# Note this passes if IF is empty!
 
 #------------------------------------------------------------------------
 
-# If no IF is selected then we want see down, not anything else.
-if [ -z "$IF" ] || [[ "$(cat /sys/class/net/$IF/operstate)" = 'down' ]]; then
+AF=${ADDRESS_FAMILY:-"inet6\?"}
+LABEL="${LABEL:-}"
+
+for flag in "$1" "$2"; do
+  case "$flag" in
+    -4)
+      AF=inet ;;
+    -6)
+      AF=inet6 ;;
+    -L)
+      if [[ "$IF" = "" ]]; then
+        LABEL="iface"
+      else
+        LABEL="$IF:"
+      fi ;;
+  esac
+done
+
+if [[ "$IF" = "" ]] || [[ "$(cat /sys/class/net/$IF/operstate)" = 'down' ]]; then
+  echo "${LABEL} down" # full text
+  echo "${LABEL} down" # short text
+  echo \#FF0000 # color
   exit
 fi
 
-case $1 in
-	-4)
-		AF=inet ;;
-	-6)
-		AF=inet6 ;;
-	*)
-		AF=inet6? ;;
-esac
-
-# Use the first global scope address
-IPADDR=$(ip addr show $IF | perl -n -e "/$AF ([^\/]+).* scope global/ && print \$1 and exit")
+# Use the first global scope address that matches limitation and preffer not local one)
+while read -r ipaddr; do
+  case "$ipaddr" in
+    ""|169\.*|f*)
+      IPADDR="${IPADDR:-$ipaddr}"
+      continue # try another one
+  esac
+  IPADDR="$ipaddr"
+  break
+done <<<"$(ip addr show "$IF"  | sed -n 's/.*inet6\? \([^/]\+\).* scope global.*/\1/p')"
 
 case $BLOCK_BUTTON in
-	3) echo -n "$IPADDR" | xclip -q -se c ;;
+  3) echo -n "$IPADDR" | xclip -q -se c ;;
 esac
 
 #------------------------------------------------------------------------
-- 
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