deploy only release apps to all connected devices and use watchdog if adb hangs

gistfile1.sh

# Timeout.
declare -i timeout=60
# Interval between checks if the process is still alive.
declare -i interval=1
# Delay between posting the SIGTERM signal and destroying the process by SIGKILL.
declare -i delay=1

function watchdog {
  # $# should be at least 1 (the command to execute), however it may be strictly
  # greater than 1 if the command itself has options.
  if (($# == 0 || interval <= 0)); then
    return 1
  fi

  # start the command in the background and take it's pid
  $@ &
  pid=$!

  # kill -0 pid   Exit code indicates if a signal may be sent to $pid process.
  (
    ((t = timeout))

    while ((t > 0)); do
      sleep $interval
      kill -0 $pid || return 0
      ((t -= interval))
    done

    # Be nice, post SIGTERM first.
    # The 'exit 0' below will be executed if any preceding command fails.
    echo "killing nicely $pid"
    kill -s SIGTERM $pid && kill -0 $pid || return 0
    sleep $delay
    echo "killing hard $pid"
    kill -s SIGKILL $pid
  ) 2> /dev/null
}

for APK in `find $WORKSPACE -type f -name '*-release*.apk'`; do
  if [[ "$APK" != *unaligned* ]]; then
    if [[ "$APK" != *unsigned* ]]; then
      for DEVICE in `adb devices | tail -n+2 | cut -f1`; do
        echo "installing $APK on $i"
        watchdog adb -s $DEVICE install -rs $APK
      done
    fi
  fi
done
 
echo "done deploying"