I'd like to set default values for parameters that will be passed to epp
templates. However, the default value is based on another parameter. I
understand that variables are immutable but this is a parameter that
shouldn't be touched unless it wasn't set.
Here is an example construct with a few of my syntax attempts.
class myClass (
String $base_dir,
Optional[String] $conf_dir,
) {
#Attempt 1: Failed
if $myClass::conf_dir == undef { $myClass::conf_dir = "$myClass::base_dir
/conf" }
#Attempt 2: Failed
if !$myClass::conf_dir { $myClass::conf_dir = "$myClass::base_dir/conf" }
#Attempt 3: Failed
unless $myClass::conf_dir { $myClass::conf_dir = "$myClass::base_dir/conf" }
}
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