Script to automatically append 'bundle exec' to the start of a command if there is a Gemfile in the folder.

append_bundle_exec.sh

function rake {
  if [ -e Gemfile ]; then
    bundle exec rake $@
  else
    `which rake` $@
  fi
}

function rspec {
  if [ -e Gemfile ]; then
    bundle exec rspec $@
  else
    `which rspec` $@
  fi
}