Yeah, "Arrgh, the language guide."... not very precise.
The issue I am trying to solve is how to help a user with available
variables in a given scope (this is in Geppetto).
What I currently do is check if a variable is known. If not know
suggestions are computed.
There is no problem with the truly global variables like
$operatingsystem - if not found they should be referenced in global
scope ($::operatingsystem). But magically injected local variables
should not.
I also wonder about these magic local variables if they are available
from the outside.
Is there some clear explanation of $title and $name somewhere. Some
examples use $title and others use $name. I know "name" is an alias for
a parameter marked as being the "namevar" of a type - but its use is
noted as deprecated in favor of the real "namevar". How does the
variables $name and $title relate?
- henrik
On 10/19/11 11:04 PM, Nick Fagerlund wrote:
Hey, Henrik.
Argh, the language guide. Anyway, I was about to say $title and $name
were the only ones, but then I remembered $module_name and
$caller_module_name (http://docs.puppetlabs.com/guides/faq.html#are-
there-variables-available-other-than-those-provided-by-facter). Those
MIGHT be what the language guide was referring to. I'm pretty sure it
wasn't referring to metaparameters, although any metaparameters
declared for a defined type instance ARE available as variables inside
the definition.
I don't know if the module_name variables can be parameter defaults;
you'd have to check.
I forget what happens prior to 2.6.5 so you'll have to check that too,
but I THINK $name/$title caught the value they had in the containing
scope, which would be the name of the class where the defined resource
was declared. (Often "main" when you're testing one-off manifests.)
On Oct 19, 11:36 am, Henrik Lindberg<henrik.lindb...@cloudsmith.com>
wrote:
The documentation says:
"Defined types have a number of built-in variables available, including
$name and $title, which are set to the title of the resource when it is
declared."
How can I find out what the other "built-in variables" are?
Is it the meta parameters?
I Understand that since 2.6.5 it is possible to refer to $title and
$name as default values of declared parameters - can the "other built-in
variables" also be used this way, or are $name/$title special in this
respect?
What happened in< 2.6.5 ? Was the result depending on what the value of
$name/$title was in the scope where it was declared - or did it just fail?
Need this to correctly validate variable references in Geppetto
(https://github.com/cloudsmith/geppetto/issues/210)
Regards
- henrik
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