only-dev.sh

#!/usr/bin/env bash

# only-dev && only execute in dev env and throw an error in other
# only-dev || only execute in non-dev env and do nothing in other

if [[ $NODE_ENV =~ ^dev ]]
then
  exit 0
fi
exit -1

only-prod.sh

#!/usr/bin/env bash

# only-prod && only execute in prod env and throw an error in other
# only-prod || only execute in non-prod env and do nothing in other

if [[ $NODE_ENV =~ ^prod ]]
then
  exit 0
fi
exit -1

only-root-project.sh

#!/usr/bin/env bash

# TODO