Script for automating connecting Spark Core device to WiFi via USB (OS X)

setup_wifi

#! /usr/bin/env bash
#
# You will need the spark core cli installed first (and nodejs):
#   npm install -g spark-cli
#   spark cloud login
#
# To set SSID and PASSPHRASE, change below or run:
#   git config spc.wifi.ssid YOUR_SSID
#   git config spc.wifi.passphrase YOUR_PASSPHRASE

set -e

SSID="$(git config --get spc.wifi.ssid)"
PASSPHRASE="$(git config --get spc.wifi.passphrase)"
ENCRYPTION_TYPE=3

SILENT="false"

SPARK_TTY="$(spark serial list | grep dev | awk '{print $2}')"
[[ ! -e $SPARK_TTY ]] && \
  echo "Spark Core not found. Ensure it is connected via USB and in listening mode (flashing blue)." && \
  echo "To enter listening mode, hold the mode button for 3 seconds." && \
  exit 1

stty -f $SPARK_TTY 9600

if [ "$SILENT" != "true" ]; then
  echo "Reading from Spark Core. Password ommited from output..."
  echo
  grep -v Password $SPARK_TTY &
  cat_pid=$!
fi

echo -n "w" > $SPARK_TTY
sleep 0.5
echo $SSID > $SPARK_TTY
sleep 0.5
echo $ENCRYPTION_TYPE > $SPARK_TTY
sleep 0.5
echo $PASSPHRASE > $SPARK_TTY

if [ "$SILENT" != "true" ]; then
  sleep 9
  kill $cat_pid
fi