Merge pull request hashicorp#5 from hashicorp/pluginconstant

add default name constant

plugin/set.go

@@ -13,6 +13,16 @@ import (
 	"github.com/hashicorp/packer/version"
 )
 
+// Use this name to make the name of the plugin in the packer template match
+// the multiplugin suffix, instead of requiring a second part.
+// For example, calling :
+//  pps.RegisterProvisioner(plugin.DEFAULT_NAME, new(CommentProvisioner))
+// On a plugin named `packer-plugin-foo`, will make the `foo` provisioner available
+// with your CommentProvisioner doing that. There can only be one unnamed
+// plugin per plugin type.
+const DEFAULT_NAME = "-packer-default-plugin-name-"
+
+
 // Set is a plugin set. It's API is meant to be very close to what is returned
 // by plugin.Server
 // It can describe itself or run a single plugin using the CLI arguments.