pre-commit.sh

# alternative to https://gist.github.com/SkyM/1641459
FORBIDDEN=$(echo 'declaim break ==== >>>> <<<< string.gmatch inspect' |
                sed -e 's/ /\\\|/g')

git diff --cached | grep '^+' | sed -e 's/--.*//' |
    grep -n $FORBIDDEN &&
    echo "COMMIT REJECTED Found '$FORBIDDEN' references. Please remove them before commiting" &&
    exit 1