flutter auto hot reload script.

hotreload.sh

#!/bin/bash

chmod 777 ./hotreloader.sh
echo 'Script is running';
while true
do
    find lib/ -name '*.dart' | entr -dnp ./hotreloader.sh /_
done

hotreloader.sh

#!/bin/bash

set -euo pipefail
PIDFILES=($(compgen -G "/tmp/flutter*.pid"))

if [[ "${1-}" != "" && ${#PIDFILES[@]} > 0 ]]; then
    echo $1
    PIDS=""
    for pf in ${PIDFILES[@]}; do
        PIDS+=$(cat $pf)
        PIDS+=" "
    done
    if [[ "$1" =~ \/state\/ || "$1" =~ backend ]]; then
        echo "Restarting ${PIDS}"
        kill -USR2 $PIDS
    else
        echo "Reloading ${PIDS}"
        kill -USR1 $PIDS
    fi
fi

run.sh

#!/bin/bash

# Function to run flutter run in the background
run_flutter() {
  flutter run --pid-file /tmp/flutter.pid
  # When flutter run exits, exit the script
  exit
}



# Run the hotreload.sh script
sh ./hotreload.sh &
# Run flutter run in the background
run_flutter 

brew install entr install this package first.