BASH Successerator. when running a process that has a high probability of failure use this function as a means to ensure the operation is run multiple times.

bash_retry.sh

# BASH Successerator. when running a process that has a high 
# probability of failure use this function as a means to 
# ensure the operation is run multiple times. 

# Usage:
#   successerator knife bootstrap -e ENV -r 'role[one],recipie[two]'

# Used to retry process that may fail due to random issues.
function successerator() {
  MAX_RETRIES=${MAX_RETRIES:-5}
  RETRY=0

  # Set the initial return value to failure
  false

  while [ $? -ne 0 -a ${RETRY} -lt ${MAX_RETRIES} ];do
    RETRY=$((${RETRY}+1))
    $@
  done

  if [ ${RETRY} -eq ${MAX_RETRIES} ];then
    echo "Hit maximum number of retries, giving up..."
  fi
}