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author | Micah <micah@leap.se> | 2016-05-24 10:19:33 -0400 |
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committer | Micah <micah@leap.se> | 2016-05-24 10:19:33 -0400 |
commit | 1da5dc55ee48fcd437f5b5df00a5b2f3991ec9f1 (patch) | |
tree | 1794e812d83facd93b3007c42632c63ddf1eb2fc /lib/puppet/parser/functions/getvar.rb |
Squashed 'puppet/modules/stdlib/' content from commit 7112363
git-subtree-dir: puppet/modules/stdlib
git-subtree-split: 71123634744b9fe2ec7d6a3e38e9789fd84801e3
Diffstat (limited to 'lib/puppet/parser/functions/getvar.rb')
-rw-r--r-- | lib/puppet/parser/functions/getvar.rb | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/getvar.rb b/lib/puppet/parser/functions/getvar.rb new file mode 100644 index 00000000..fb336b6a --- /dev/null +++ b/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 |