updated nvim init.lua and waybar network module

waybar/scripts/network.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# Path for the temporary file to store previous stats
+STATS_FILE="/tmp/waybar_net_stats"
+
+# Find the default network interface
+INTERFACE=$(ip route | grep '^default' | awk '{print $5}' | head -n1)
+
+# Exit if no active interface is found
+if [ -z "$INTERFACE" ]; then
+    echo "{\"text\": \"No connection\"}"
+    exit 0
+fi
+
+# Get the IP address for the interface
+IP_ADDR=$(ip -4 addr show "$INTERFACE" | grep -oP 'inet \K[\d.]+')
+
+# Get current time and byte counts
+TIME_NOW=$(date +%s)
+RX_BYTES_NOW=$(cat "/sys/class/net/$INTERFACE/statistics/rx_bytes")
+TX_BYTES_NOW=$(cat "/sys/class/net/$INTERFACE/statistics/tx_bytes")
+
+# Initialize speeds to 0
+RX_MBPS="0.00"
+TX_MBPS="0.00"
+
+# Read previous values if the stats file exists
+if [ -f "$STATS_FILE" ]; then
+    source "$STATS_FILE" # This loads PREV_TIME, PREV_RX_BYTES, PREV_TX_BYTES
+fi
+
+# Calculate speed if we have previous data and time has passed
+if [ -n "$PREV_TIME" ] && [ "$TIME_NOW" -gt "$PREV_TIME" ]; then
+    TIME_DIFF=$((TIME_NOW - PREV_TIME))
+
+    RX_BPS=$(( (RX_BYTES_NOW - PREV_RX_BYTES) / TIME_DIFF ))
+    TX_BPS=$(( (TX_BYTES_NOW - PREV_TX_BYTES) / TIME_DIFF ))
+
+    # Using printf for better formatting (forces two decimal places)
+    RX_MBPS=$(printf "%.2f" "$(echo "$RX_BPS / 1024 / 1024" | bc -l)")
+    TX_MBPS=$(printf "%.2f" "$(echo "$TX_BPS / 1024 / 1024" | bc -l)")
+fi
+
+# Save current values for the next run
+echo "PREV_TIME=$TIME_NOW" > "$STATS_FILE"
+echo "PREV_RX_BYTES=$RX_BYTES_NOW" >> "$STATS_FILE"
+echo "PREV_TX_BYTES=$TX_BYTES_NOW" >> "$STATS_FILE"
+
+# Output JSON for Waybar
+echo "{\"text\": \"$INTERFACE ($IP_ADDR):  ${RX_MBPS} MB/s   ${TX_MBPS} MB/s\"}"