Hi,
macros in puppets -> http://forge.puppetlabs.com/ptomulik/macro
They're similar to parser functions with three differences:
- macro names may resemble names of puppet variables/bindings, e.g.
'foo::bar::geez'
- stored in a hierarchy of directories, that is (for macro
'foo::bar::geez'):
+ lib/puppet/parser/macros/
+ foo/
+ bar/
+ geez.rb
- they're a little bit easier to implement than functions, because arity
checking is provided out of the box
In some cases these macros may be more handy than 'params' classes when
defining defaults for parameters. For example defaults for defined types
which vary from instance to instance, or values which are hard to be
computed in puppet DSL may be easily handled with macros.
Leave a comment, if you find it useful or useless.
Regards!
--
Pawel Tomulik
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