pre-commit.sh

#!/bin/bash

chruby 2.7.0
export RUBYOPT=-W:no-deprecated

# Install all gem dependencies
bundle install

# Just to prevent showing many "error" messages
dirty_bit=0

# Run rubocop
rubocop -a
last_command_ret_code=$?

if [ $last_command_ret_code -eq 0 ]; then
  # Run unit tests
  bundle exec rails test
  last_command_ret_code=$?
else
  echo "RUBOCOP OFFENSES PREVENTED ME FROM COMMITTING..."
  dirty_bit=1
fi

if [ $last_command_ret_code -eq 0 ]; then
  # Prepare to run system tests
  yarn build-for-tests

  # Run system tests
  bundle exec rails test:system
  last_command_ret_code=$?
elif [ $dirty_bit -eq 0 ]; then
  echo "UNIT TESTS FAILURES/ERRORS PREVENTED ME FROM COMMITTING..."
  dirty_bit=1
fi

if [ $last_command_ret_code -eq 0 ]; then
  echo "ALL GOOD. COMMITTING..."
elif [ $dirty_bit -eq 0 ]; then
  echo "SYSTEM TESTS FAILURES/ERRORS PREVENTED ME FROM COMMITTING..."
fi

# Return the last "error" code if any
exit $last_command_ret_code

Nice, I'll check Husky out. 😄