Added validate_resource function and examples on how to use it (and kwalify as well)

1 files changed, 36 insertions, 0 deletions

diff --git a/lib/puppet/parser/functions/validate_resource.rb b/lib/puppet/parser/functions/validate_resource.rb
new file mode 100644
index 0000000..bbb5a54
--- /dev/null
+++ b/lib/puppet/parser/functions/validate_resource.rb
@@ -0,0 +1,36 @@
+#
+# validate_resource
+#
+
+module Puppet::Parser::Functions
+  newfunction(:validate_resource, :type => :statement, :doc => <<-EOS
+    EOS
+  ) do |arguments|
+ 
+    require 'kwalify'
+
+    if (arguments.size != 0) then
+      raise(Puppet::ParseError, "validate_resource(): Wrong number of arguments "+
+        "given #{arguments.size} for 0")
+    end
+
+
+    classhash = to_hash(recursive=false)
+    sourcepath = source.file
+    schemapath = sourcepath.gsub(/\.(rb|pp)$/, ".schema")
+    schema = Kwalify::Yaml.load_file(schemapath)
+    validator = Kwalify::Validator.new(schema)
+    errors = validator.validate(classhash)
+
+    if errors && !errors.empty?
+      error_output = "Resource validation failed:\n"
+      for e in errors
+        error_output += "[#{e.path}] #{e.message}\n"
+      end
+      raise(Puppet::ParseError, error_output)
+    end
+
+  end
+end
+
+# vim: set ts=2 sw=2 et :