Ensures a Flutter app always uses the correct local IP for backend access, even when the IP changes. Run it before every flutter run command.

update_local_ip.sh

#!/bin/bash

TARGET_FILE=./lib/local_constants.dart

IP_ADDRESS=$(ifconfig en0 | grep 'inet ' | awk '{ print $2 }')

content="const localBaseURL = 'http://$IP_ADDRESS';"

if [ -f $TARGET_FILE ]; then
    if [ "$(cat $TARGET_FILE)" != "$content" ]; then
        echo "File exists and content is not the same"
        echo "$content" > $TARGET_FILE
    fi
fi