diff options
Diffstat (limited to 'puppet/modules/stdlib/lib/puppet/parser/functions/getvar.rb')
-rw-r--r-- | puppet/modules/stdlib/lib/puppet/parser/functions/getvar.rb | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/puppet/modules/stdlib/lib/puppet/parser/functions/getvar.rb b/puppet/modules/stdlib/lib/puppet/parser/functions/getvar.rb new file mode 100644 index 00000000..fb336b6a --- /dev/null +++ b/puppet/modules/stdlib/lib/puppet/parser/functions/getvar.rb @@ -0,0 +1,29 @@ +module Puppet::Parser::Functions + + newfunction(:getvar, :type => :rvalue, :doc => <<-'ENDHEREDOC') do |args| + Lookup a variable in a remote namespace. + + For example: + + $foo = getvar('site::data::foo') + # Equivalent to $foo = $site::data::foo + + This is useful if the namespace itself is stored in a string: + + $datalocation = 'site::data' + $bar = getvar("${datalocation}::bar") + # Equivalent to $bar = $site::data::bar + ENDHEREDOC + + unless args.length == 1 + raise Puppet::ParseError, ("getvar(): wrong number of arguments (#{args.length}; must be 1)") + end + + begin + self.lookupvar("#{args[0]}") + rescue Puppet::ParseError # Eat the exception if strict_variables = true is set + end + + end + +end |