Setup a Sauce Connect 3 tunnel

sauce_connect_setup.sh

#!/bin/bash
if [ -z "${SAUCE_USERNAME}" ] || [ -z "${SAUCE_ACCESS_KEY}" ]; then
    echo "This script can't run without your Sauce credentials"
    echo "Please set SAUCE_USERNAME and SAUCE_ACCESS_KEY env variables"
    echo "export SAUCE_USERNAME=ur-username"
    echo "export SAUCE_ACCESS_KEY=ur-access-key"
    exit 1
fi

SAUCE_TMP_DIR="$(mktemp -d -t sc.XXXX)"
echo "Using temp dir $SAUCE_TMP_DIR"
pushd $SAUCE_TMP_DIR

SC_DISTRIBUTION="Sauce-Connect-latest.zip"
SC_READYFILE=sauce-connect-ready-$RANDOM
SC_LOGFILE=$HOME/sauce-connect.log
if [ ! -z "${TRAVIS_JOB_NUMBER}" ]; then
  SC_TUNNEL_ID="-i ${TRAVIS_JOB_NUMBER}"
fi
echo "Downloading Sauce Connect"
wget http://saucelabs.com/downloads/${SC_DISTRIBUTION}

echo "Extracting Sauce Connect"
unzip $SC_DISTRIBUTION

echo "Starting Sauce Connect"
java -jar Sauce-Connect.jar --readyfile $SC_READYFILE \
    $SC_TUNNEL_ID \
    $SAUCE_USERNAME $SAUCE_ACCESS_KEY 1> $SC_LOGFILE &

echo "Waiting for Sauce Connect readyfile"
while [ ! -f ${SC_READYFILE} ]; do
  sleep .5
done

unset SAUCE_TMP_DIR SC_DISTRIBUTION SC_READYFILE SC_LOGFILE SC_TUNNEL_ID

popd