Apple magic keyboard automatic reconnect

magic_keyboard_reconnect.sh

#!/usr/bin/env bash
# Reconnect Magic Keyboard on this Mac

# Your keyboard's BT address (as given)
# Requirement: brew install blueutil
# Find your device Bluetooth addresses -> blueutil --paired (search for magic keyboard)
ADDRESS_RAW="<insert-address-here>"

# --- No edits needed below ---
command -v blueutil >/dev/null 2>&1 || {
  echo "blueutil not found. Install with: brew install blueutil"
  exit 1
}

ADDR="$(echo "$ADDRESS_RAW" | tr '[:lower:]' '[:upper:]')"

# Ensure Bluetooth is on
blueutil --power 1 >/dev/null

# Already connected?
if blueutil --is-connected "$ADDR" | grep -q 1; then
  echo "Magic Keyboard ($ADDR) is already connected."
  exit 0
fi

# Try to connect (with a few retries)
for i in {1..5}; do
  echo "Connecting to Magic Keyboard $ADDR (try $i)…"
  if blueutil --connect "$ADDR"; then
    # Verify connection
    if blueutil --is-connected "$ADDR" | grep -q 1; then
      echo "Connected!"
      exit 0
    fi
  fi
  sleep 1.5
done

# Last resort: toggle Bluetooth to “unstick” and try again
echo "Toggling Bluetooth to unstick…"
blueutil --power 0; sleep 1; blueutil --power 1; sleep 1

if blueutil --connect "$ADDR" && blueutil --is-connected "$ADDR" | grep -q 1; then
  echo "Connected after toggle!"
  exit 0
else
  echo "Could not connect. The keyboard may still be connected to the other Mac."
  exit 2
fi