stress_spec.sh

#!/bin/bash

relaxing=false
if [ "$1" = "--relax" ]; then
  relaxing=true
  shift
fi

iteration=0
rspec_opts="$@"

function chill_out {
  killall stress
}

function interrupted {
  echo -en "\n*** Stress-spec is taking a chill pill... ***\n"
  chill_out
  print_run_count
  exit $?
}

function print_run_count {
  echo "*** Ran $iteration times. ***"
}

function check_stress {
  command -v stress >&-
  if [[ $? -gt 0 ]]; then
    echo "You must install \"stress\" before running this script."
    exit 1
  fi
}

function start_stressing {
  stress --cpu 4 &
}

function run_spec {
  local runner="bundle exec rspec $rspec_opts"

  while true; do
    let iteration=( $iteration + 1 )
    eval $runner || break
  done

  print_run_count
}

if [ "$relaxing" = false ]; then
  trap interrupted SIGINT
  check_stress
  start_stressing
fi

run_spec

if [ "$relaxing" = false ]; then
  chill_out
fi