Specialising validate_re with wrapper functions in Puppet (opens in new tab)

Once your puppet code base reaches a certain size you’ll often have a number of validate_ functions testing parameters and configuration values for compliance with local rules and requirements. These invocations often look like this: validate_re($private_gpg_key_fingerprint, '^[[:alnum:]]{40}$', 'Must supply full GPG fingerprint') Once you’ve spent a minute or two reading that you’ll probably be able to understand it; but wouldn’t it be nice to not have to care about the exact details and foc...